MTA TAEevo Tech 101, TAEevo Tech 051, TAEevo Tech 081, TAEevo Tech 020, TAEevo Tech 121 Operating And Maintenance Manual

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TAEevo Tech

WATER CHILLERS

OPERATING AND MAINTENANCE MANUAL

TAEevo Tech 015÷802 60 Hz UL

DDOMA00417

Original instructions in Italian language (Service)

OPERATING AND MAINTENANCE MANUAL

- User’s quick guide

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

USER’S QUICK GUIDE

ATTENTION

MODIFICATION OF AN UL LISTED PRODUCT

MTA chillers feature an electrical cabinet designed and wired in compliance with the UL508A standard for electrical enclosures. The UL compliance allows this MTA equipment to meet local code requirements in most locations in the US and Canada. When a UL Listed product is modified, retrofitted or altered in any way after it leaves the factory, it is necessary to verify if the product continues to meet the applicable certification safety requirements. If a modification made to the product in the field (outside of the MTA factory) does NOT affect the electrical characteristics of the panel installed on the machine, then the UL Listing is not affected and th e UL label that was placed on the p roduct at the factory can remain. Some examples include:

- Making the remote ON / OFF connection (to terminals provided in the panel)

- Making the alarm relay connection (to terminals provided in the panel)

- Making remote terminal connection (to terminals provided in the panel)

- Replacement of panel components with equal components If a modification made in the field DOES affect the electrical characteristics of the panel installed on the machine, it is not possible for UL to confirm that the product continues to meet the applicable certification safety requirements. In this case the field modifications must be specifically inspected and recertified by the appropriate UL agency. Some examples include:

- Replacement of panel components with components that are different than those originally supplied

- Replacement of motors (or other current-drawing devices) that involve the change of components inside the panel

- Addition of devices not provided for by MTA

- Addition of electrical loads not foreseen by MTA In this case it is the responsibility of the AUTHORITY HAVING JURISDICTION to assess the acceptability of modifications and/or to determine if modifications are significant enough to require a member of the UL field engineering services staff to evaluate and/or recertify the modified product. Anyone directly involved with a product (including manufacturers, owners, contractors, and regulatory authorities) can request a Field Evaluation. For further clarification, contact MTA USA or visit the UL’s Web site at www.ul.com/field.

ATTENTION

Before starting units of this type, ensure that all personnel inv olved have read and understood Chapter 2 “Safety” and

follow the procedures set down in Chapter 6 “Starting”.

ATTENTION

When first starting after a stop of several days, ensure that the casing heating element of each compressor is switched

on for at least 12 hours before pressing the start button.

ATTENTION

The pressure l imiting valve is factory set, according to the pump nominal flow operating at a standard voltage of 460V/

3Ph/60Hz. Before using the unit it is necessary to set the limiting valve according to the plant nominal flow and accordin g to the power supply.

Units in the TAEevo Tech range are equipped with an electronic controller that manages correct operation of the appliance on the basis of signals read on the analogue and digital inputs. This quick guide contains a list of the main functions of the electronic board. For more detailed information consult Chapter7 “Electronic controller”.

OPERATING AND MAINTENANCE MANUAL

- User’s quick guide

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

On the models TAEevo Tech 015÷351 the electronic control unit is installed on the door of the electrical panel, while on models TAEevo Tech 381÷802 it is fitted inside the electrical panel while the door is equipped with LCD graphic display.

NOTE

To convert the semi-graphic LCD display on the door of the electrical panel (mod. TAEevo Tech 381÷802) to remote control, the relevant remote control kit must be ordered.

0.1 Unit start/stop

The unit can be switched on and off as follows:

• From the keypad (local or remote)

• From a digital input configured as remote ON/OFF

NOTE

In case of a power loss, when pow er is restored the unit will be ON if it was ON at the time of power loss, and OFF if it was OFF.

0.1.1 Start from the keypad

From unit OFF (stand-by) press and release button to switch the unit on or off in chiller mode. With the unit on LED is lit.

Stand-by mode is set each time the unit is switched off from chiller operating mode. Also in stand-by the controller makes it possible to:

• Display the measured values.

• Manage the alarm situation by displaying and signalling active alarms.

When the unit is in stand-by the controller shows the label

 on the display.

Electronic control TAEevo Tech 015÷351

LCD graphic display TAEevo Tech 381÷802

OPERATING AND MAINTENANCE MANUAL

- User’s quick guide

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

0.1.2 Start-up from a digital input

When the unit is in OFF status from a digital input the controller shows the label

. on the display.

For details concerning the connection, refer to the electrical diagram.

0.2 Setpoint

0.2.1 Display the setpoint

To display the setpoint press and release the key. With the unit in stand-by the lower display will show SetC (chiller set). The upper display will show the set value.

0.2.2 Change the setpoint

To change the unit working setpoint press the key for at least 3 seconds and the working setpoint SetC (chiller set) will appear in flashing mode.

The setpoint can be changed using the or buttons. To save the new setpoint, press or wait for the time-out to exit programming mode.

0.3 Alarms display and reset

ATTENTION

With this procedure you can reset all the alarms except for the compressor thermal cut-out alarms for which the

password will be required: 14.

To open the functions menu proceed as follows:

• Open the functions menu by pressing the button

• With the or buttons select the ALrM function

•Press . If no alarms are present, pressing button is not enabled.

• The lower display shows the label with the alarm code; the upper display, if the alarm displayed is resettable, shows the label rSt or no if the alarm condition is still present.

• Pressing in correspondence with label rSt resets the alarm and the system goes to the next one; if this too is resettable, press to reset it and go to the next one.

• If you want to scroll through all the alarms present press or .

To exit the ALrM function and return to normal display mode press or wait for the time-out. With the unit in StbY (stand-by) and the  LED flashing, press and scroll with buttons or to select the ALrM function and press button to display the active alarm.

NOTE

To reset the compressor thermal alarms refer to the specific heading.

OPERATING AND MAINTENANCE MANUAL

- Table of Contents

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

TABLE OF CONTENTS

USER’S QUICK GUIDE .........................................................................................................................1

0.1 Unit start/stop....................................................................................................................2

0.1.1 Start from the keypad ..........................................................................................................2

0.1.2 Start-up from a digital input ................................................................................................3

0.2 Setpoint .............................................................................................................................3

0.2.1 Display the setpoint ............................................................................................................. 3

0.2.2 Change the setpoint .............................................................................................................3

0.3 Alarms display and reset................................................... ........................................... ..... 3

TABLE OF CONTENTS.........................................................................................................................4

Chapter 1

GENERAL INFORMATION....................................................................................................................8

1.1 How to interpret the model ...............................................................................................9

1.2 How to interpret the alphanum eric strin g .......................................................................10

Chapter 2

SAFETY..............................................................................................................................................11

2.1 General............................................................................................................................11

2.2 User circuit liquids....................................................... ................................................... 11

2.3 Lifting and transport precautions.................................................................................... 11

2.4 Precautions to be adopted during installation ................................................................. 13

2.5 Precautions to be adopted during operation.................................................................... 13

2.6 Maintenance precautions ................................................................................................ 13

2.7 Disposal, disassembly and recycling .............................................................................. 15

2.8 Refrigerant gases....................................................................................................... ...... 15

2.8.1 Refrigerants safety datasheet ............................................................................................15

Chapter 3

TECHNICAL DATA.............................................................................................................................17

3.1 Data for standard units....................................................................................................17

3.1.1 Dimensions ...................................... ..................................................................................17

3.1.2 Characteristics of pumps and fans .................................................................................... 18

3.1.3 Sound level measurements .................................................................................................18

Chapter 4

DESCRIPTION....................................................................................................................................20

4.1 Components .................................................................................................................... 20

4.1.1 Refrigerant circuit .............................................................................................................20

4.2 Compressors.................................................................................................................... 20

4.3 Condenser ....................................................................................................................... 20

4.4 Evaporator....................................................................................................................... 21

4.5 Tank ................................................................................................................................ 21

4.6 Pump ...............................................................................................................................21

4.7 Fans.................................................................................................................................21

4.7.1 Axial ...................................... ......... ...... ......... ....... ......... ....... ......... ........ ....... ....... ...............21

4.8 Cabinet............................................................................................................................ 22

4.9 Materials in contact with the liquid to be cooled............................................................ 22

4.10 Overall dimensions and minimum clearances with respect to walls..............................22

4.11 Electrical circuit..............................................................................................................22

Chapter 5

INSTALLATION..................................................................................................................................23

5.1 Inspection........................................................................................................................23

5.2 Location .......................................................................................................................... 23

5.3 Freeze protection ............................................................................................................. 24

5.3.1 Operating limits ............. ................................................................... ................................. 24

5.4 Hydraulic connections .................................................................................................... 25

5.4.1 Evaporator water limit features ...................... .................................................................. 27

5.5 Expansion vessel.............................................................................................................27

5.6 Electrical connections..................................................................................................... 28

OPERATING AND MAINTENANCE MANUAL

- Table of Contents

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

5.7 Phase Monitor ............................................. ....................................................................29

Chapter 6

STARTING..........................................................................................................................................30

Chapter 7

ELECTRONIC CONTROLLER ............................................................................................................. 32

7.1 User interface ..................................................................................................................32

7.2 Function of buttons .........................................................................................................32

7.2.1 Function of combined buttons ......................................................... ...................................33

7.3 Remote terminal..............................................................................................................33

7.4 Probes key .......................................................................................................................33

7.5 Unit start/stop..................................................................................................................34

7.5.1 Start from the keypad .........................................................................................................34

7.5.2 Start from a digital input ...... .............................................................................................34

7.6 Setpoint ........................................................................................................................... 34

7.6.1 Display the setpoint ............ ................................... ............................................................34

7.6.2 Change the setpoint ...........................................................................................................34

7.7 Dynamic setpoint function ..............................................................................................35

7.8 How to display the internal values of a circuit................................................................36

7.9 Functions menu button “Menu”......................................................................................36

7.9.1 CrEn - Enable or disable the single circuit .......................................................................36

7.9.2 COEn - Enable or disable the single compressor ..............................................................37

7.9.3 COSn - Display and reset the number of compressor starts ..............................................37

7.9.4 Hour - Display and reset the running hours of the loads ..................................................37

7.9.5 Cond - Display of percentage / number of condensing steps ............................................38

7.9.6 POEn - ENABLE or DISABLE the operation of a water pump using the key ...................38

7.10 uS - Tank heater probe display........................................................................................38

7.11 Alarms.............................................................................................................................39

7.11.1 Alarms display and reset (ALrM function) ........................................................................39

7.11.2 How to mute the buzzer ........... ...........................................................................................39

7.11.3 General alarms list ........................................................................... .................................39

7.11.4 Indications table . .. ..................................................................... ........................................41

7.11.5 Probe faulty .................... ....................................................................................................41

7.11.6 High pressure switch alarm ...............................................................................................41

7.11.7 High pressure switch alarm and/or compressor thermal alarm ........................................42

7.11.8 Low pressure switch alarm ....... .................................... .....................................................42

7.11.9 High pressure .....................................................................................................................43

7.11.10Low pressure ......................................................................................................................43

7.11.11Anti-freeze alarm ...............................................................................................................44

7.11.12Chiller mode anti-freeze alarm ..........................................................................................44

7.11.13Level sensor and/or flow meter alarm ...............................................................................44

7.11.14Compressors thermal alarm ..............................................................................................46

7.11.15Fan thermal alarm .............................................................................................................46

7.11.16High condensing pressure unloading indication in chiller mode ......................................47

7.11.17High condensing pressure recovery disabling indication .................................................47

7.11.18Evaporator inlet high water temperature unloading indication ........... .............................48

7.11.19Evaporator water pump group thermal alarm ..................................................................48

7.11.20Phase monito r alarm ................................................................................... ......................49

7.11.21Compressors maintenance alarm ......................................................................................49

7.11.22Pumps maintenance alarm .................................................................................................49

7.11.23EEprom alarm ....................................................................................................................49

7.11.24Unit configuration alarm ...................................................................................................50

7.12 iCHILL input/output configurations ...............................................................................52

7.12.1 Configuration of analogue inputs PB1 - PB2 – PB5 – PB6 ..............................................52

7.12.2 Configuration of analogue inputs PB3 - PB4 ....................................................................52

7.12.3 Configuration of digital inputs ID1 – ID11 .......................................................................53

7.12.4 Configuration of digital outputs RL1- RL8 ................................ ........................................54

7.12.5 Configuration of proportional outputs OUT1 and OUT2 (0 – 10 VOLT) .........................55

7.12.6 Configuration of proportional outputs OUT3 and OUT4 (0 – 10 VOLT/PWM) ...............55

7.12.7 Display in programming mode of polarity of digital inputs / outputs ...............................56

7.12.8 Remote terminal alarm ......................................................................................................56

7.12.9 Remote terminal alarm ......................................................................................................56

7.12.10Alarm relay / open - collector / buzzer notes ............................. .................................... ....56

7.12.11Diagnostic of alarms that switch from automatic to manual .............................................57

OPERATING AND MAINTENANCE MANUAL

- Table of Contents

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

7.12.12Display and delete the alarms log in the memory (ALOG function) ........... ......................57

7.13 Programming from keypad............................................................................................. 57

7.13.1 Access to parameters ....................... ..................................................................... .............58

7.13.2 How to change a parameter value ....................................................................................59

7.14 Use of the hot-key (function UPL) .................................................................................59

7.14.1 Programming the board with the hot-key ..........................................................................59

7.14.2 Hot-key programming ....................................................................................................... 59

7.15 Unit adjustment and control............................................................................................59

7.15.1 Compressors control ...................................................................... ............................... ....59

7.15.2 Choice of compressors control type .................................................................................. 59

7.15.3 Proportional control .......................................................................................................... 59

7.15.4 Compressors proportional control diagram .....................................................................60

7.15.5 Neutral zone control (factory setting) ............................................................................... 60

7.15.6 Compressors rotation ................................... .................................. ...................................60

7.15.7 Forced compressors rotation ......................................... .. .................................... .............60

7.15.8 Compressors starting time limitation ................................................................................ 61

7.16 Unloading function ......................................................................................................... 61

7.17 Fans control........................................................................................ ... ..........................61

7.17.1 Units configured with “STEP” fans ................................................... ............................... 61

7.17.2 Fan control diagrams ........................................................................................................ 61

7.18 Hydraulic unit ................................................................................................................. 61

7.19 Anti-freeze pump management (if ambient probe is installed) ...................................... 61

7.20 ModBus...........................................................................................................................62

7.21 Automatic restart.............................................................................................................62

7.22 Control with LCD graphic display..................................................................................6 2

7.23 Function of buttons.........................................................................................................63

7.24 Probes visualization........................................................................................................63

7.25 Unit start/stop.................................................................................................................. 63

7.25.1 Start from the keypad ........................................................................................................64

7.25.2 Start-up from a digital input ..............................................................................................64

7.26 Visualization / modification of the set point...................................................................64

7.27 Alarm visualization.................................. .......................................... .............................64

7.28 Menu service visualization .............................................................................................65

7.29 Parameters programming................................................................................................ 65

7.30 Compressor maintenance................................................................................................ 66

7.31 Water pump maintenance ...............................................................................................66

7.32 Circuit maintenance........................................................................................................67

7.33 Alarm visualization and reset ......................................................................................... 67

7.34 Alarm log visualization................................................................... ................................68

7.35 Electric heater visualization............................................................................................ 68

7.36 I/O status......................................................................................................................... 68

7.37 Auxiliary output visualization ........................................................................................69

7.38 Parameters programming with Hot Key.........................................................................70

7.39 Keyboard configuration.................................................................................................. 71

7.40 Circuit Information .........................................................................................................71

7.41 Parameters description-settings ...................................................................................... 73

7.41.1 Description of parameters .................................................................................................73

7.41.2 Parameters setting ...........................................................................................................105

7.41.3 Parameters dependent on remote terminal kit ................................................................ 181

Chapter 8

OTHER COMPONENTS.....................................................................................................................182

8.1 Compressor motor protection ....................................................................................... 182

8.2 Refrigerant high and low pressure switches .................................................................182

8.3 Fan pressure switches ................................................................................................... 182

8.4 Pressure transducers.................................... .......................................... ........................183

8.5 Level sensor .................................................................................................................. 183

Chapter 9

OPERATION AND MAINTENANCE ...................................................................................................184

9.1 Operation ......................................................................................................................184

9.2 Maintenance....................................................... ........................................... ...............184

9.3 Access to the unit..........................................................................................................184

OPERATING AND MAINTENANCE MANUAL

- Table of Contents

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

9.4 Draining the process water circuit.................................................................................185

9.5 Pressure limiting valve (option)....................................................................................186

9.5.1 General notes of safety ....................................................................................................186

9.5.2 General notes ............................... ....................................................................................186

9.5.3 Range of application ........................................................................................................186

9.5.4 Installation and assembly ........................................................ .. .................................... ..186

9.5.5 Setting ..............................................................................................................................187

9.5.6 Operating and maintenance .............................................................................................187

9.5.7 Warranty ................................. ................................................. ........................................187

9.5.8 Marking ................................... ............. .............. ............. ........... .............. ............. ...........187

9.6 Maintenance Schedule...................................................................................................188

Chapter 10

TROUBLESHOOTING........................................................................................................................189

Chapter 11

RISK ANALYSIS: RESIDUAL RISK....................................................................................................194

OPERATING AND MAINTENANCE MANUAL

Chapter 1 - General information

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

CHAPTER 1

GENERAL INFORMATION

The units described in this manual may be referred to below as “WATER CHILLERS”. This manual is addressed to personnel responsible for installing, using and servicing the unit. The units were constructed using components made by premium quality manufacturers and the entire design, production and control process was carried out in compliance with standard ISO 9001. In the majority of applications the liquid in the user circuit is water so henceforth the term “WATER” will be utilised, even if the liquid in the user service is different (for example mixtures of water and ethylene or propylene glycol). Hereinafter the expression “PRESSURE” is used to indicate relative pressure. The electrical panel has been designed following UL508A standard rule (Industrial Control Panels). The compressors and fans carry the cURus marking. The following symbols are to be found on the decals affixed to the unit and also in the dimensional drawings and refrigerant circuit diagrams. The meaning of each symbol is indicated below:

The following warning symbols are shown on the stickers on the unit. If requested, the same stickers are available also in French. Their meaning is the following:

Process water inlet Process water outlet

Indication of the axis of reference for lifting operations

Drain point to empty the unit of water

Electric shock hazard

Risk of burns from contact with hightemperature surfaces

Direction of flow of refrigerant fluid and water circuit

Rotation direction of pump (if installed) and fans

Water filling point Air bleed valve

Opening to be used for the insertion of bars for the purpose of lifting the unit

WARNING SYMBOL DESCRIPTION

To maintain overcurrent, short-circuit, and ground-fault protection, the manufacturer’s instructions for selection of overload and short circuit protection must be followed to reduce the risk of fire or electric shock. In an overload or a fault current interruption occurs, circuits must be checked to determine the cause of the interruption. If a fault condition exists, the current-carrying components should be examined and replaced if damaged, and the integral current sensors must be replaced to reduce the risk of fire or electric shock.

ASSE DI SOLLEVAMENTO

AXIS OF EQUILIBRIUM GLEICHGEWICHTSACHSE

EMPLACEMENT DE FORCHES

PUNTO DE ELEVACION

OPERATING AND MAINTENANCE MANUAL

Chapter 1 - General information

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

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1.1 How to interpret the model

ATTENTION

 This manual, which is addressed to users, installers, and service personnel, supplies all the technical information

required to install and work with the unit and to perform the routine maintenance operations required to maximise its working life. Use only genuine parts when carrying out routine maintenance or repairs. Requests for SPARE PARTS and any INFORMATION concerning the unit must be made to your dealer or nearest service centre, specifying the MODEL and SERIAL NUMBER shown on the unit’s dataplate and on the last page of this manual.

Hazardous voltage. All doors must be closed before energizing the panel.

Read and understand operator’s manual before using this machine. Failure to follow operating instructions could result in death or serious injury.

Moving parts can crush and cut. Do not operate with guard removed. Follow lockout procedure before servicing.

Hazardous voltage. Disconnect power before servicing or cleaning.

MODEL DESCRIPTION

Number of refrigerant circuits Guideline power of compressor expressed in HP E = hermetic compressor A = air-cooled condenser T = tank; chiller with storage tank.

WARNING SYMBOL DESCRIPTION

TAEevo Tech XX Y

OPERATING AND MAINTENANCE MANUAL

Chapter 1 - General information

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

1.2 How to interpret the alphanumeric string

The alphanumeric string is shown on the metal data plate on the cover page of this manual.

This symbol shown alongside appears in some refrigerant circuit diagrams and electrical diagrams. This symbol refers to the alphanumeric string reported in the manual. The upper box (X) identifies the position of the string, the lower box (Y) identifies the assigned value.

The empty alphanumerical string is circled in the adjacent figure; each position in the upper row is associated with an alphanumeric value in the lower row (0, 1, 2, A, B, etc.) and each character is associated with a specific feature of the unit.

POS. VALUE DESCRIPTION

REFRIGERANTE 1 3 R410A VOLTAGE 2 0 400/3/50

1 460/3/60

N 400/460/3/50-60

UNIT AMBIENT TEMPERATURE 3 0 STANDARD

1 -20°C

COMPRESSOR START-UP 4 0 DIRECT

2 SOFT STARTER

EVAP. FREEZE PROTECTION 5 0 NO

1YES VERSION 6 STD STANDARD ELECTRONIC THERMOSTATIC

VALVE

07 NO

1YES LASER 8 A YES

BNO C TEMPERATURE FINE REGULATION

FAN 9 A AXIAL

B CENTRIFUGAL G HIGH PRESSURE AXIAL FLOW FANS

FAN CONTROL 10 1 ELECTRONIC CONTROL

3 ON/OFF PRE-PAINTED CONDENSING COILS 11 0 NO

1YES

PUMP

R SP - Predisposed P3

IP3

LP5

PP3+P3

QP5+P5

TANK MATERIAL

1 Fe+Fe

2 Aisi+NoF WATER BYPASS

1 OVERLOAD VALVE

2NO KIT TYPE

A NO KIT B TANK KIT

PRODUCT TYPE

0 STANDARD

X SPECIAL

0 1

CONDENSER COIL PROTECTION

NONE

FILTERS

OPERATING AND MAINTENANCE MANUAL

Chapter 2 - Safety

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

CHAPTER 2

SAFETY

This unit is designed to ensure the best guarantees of safety and efficiency in its intended use, on the condition that it is installed, commissioned, and serviced in compliance with the instructions given in this manual. The manual must therefore be studied by all those who want to install, use or maintain the unit. The unit contains electrical components that operate at mains voltage and also moving parts. All work on the unit must be carried out only after disconnecting the electrical supply. Maintenance operations involving work inside the unit must be performed by skilled and adequately qualified perso nnel equipped with suitable pr otection means (active and passive, e.g. work gloves) to ensure maximum safety. Keep unauthorized persons (e.g. children) away from the place of installation of the unit.

2.1 General

When handling or maintaining the unit and all auxiliary equipment, personnel must operate with care observing all instructions concerning health and safety at the installation site.

ATTENTION

Numerous accidents that occur during operation and maintenance of the units are caused by failure to comply with

basic safety rules and precautions.

An accident can often be avoided by recognising a situation that is potentially hazardous. The user must ensure that all personnel involved in operating and servicing the unit have read and understood all the warnings, precautions, prohibitions and notes given in this manual and affixed to the unit. Improper operation or maintenance of the unit and auxiliary equipment can be dangerous and can cause serious or fatal accidents. We cannot anticipate every possible circumstance which might constitute a potential hazard. The warnings in this manual are therefore not all-inclusive. If the user adopts operational procedures or uses tools or working procedures that are not specifically recommended, he must take care to ensure that the unit and the auxiliary equipment are not damaged or made unsafe and that no risks emerge in relation to persons or property. Any improper use of the unit will relieve the manufacturer from any liability for possible personal injury or property damage. Arbitrary modifications made to the unit will automatically invalidate all forms of guarantee provided by the manufacturer.

ATTENTION

The hot / chilled water prod uced by units canno t be used for hygiene/sanitary or food applications. If it is

used for the above purposes, the installer must install an intermediate exchanger. If the intermediate exchanger is not present, the installer must affix a warning notice to the eff ect “non potable water”.

2.2 User circuit liquids

The user circuit liquids must be compatible with the materials used for the construction of the unit’s hydraulic circuit. The expression “liquids” means: water, water with additives and/or glycol. Additive and glycol suppliers must guarantee compatibility with the materials. For further information refer to “4.9 Materials in contact with the liquid to be cooled”.

ATTENTION

If the liqui ds in the user circuit contain hazardous substances (such as glycol, for example), any liquid that is expelled

from a leakage area must be collected because it is noxious for the environment. The disposal of hazardous liquids must be handled by specialised companies authorised for the treatment of hazardous wastes.

2.3 Lifting and transport precautions

Avoid injury by using a hoist to lift heavy loads. Check all chains, hooks, shackles and slings are in good condition and are of the correct capacity. They must be tested and approved according to local safety regulations. Cables, chains or ropes must never be attached directly to lifting eyes. Always use an appropriate shackle or hook properly positioned. Arrange lifting cables so that there are no sharp bends. Use a spreader bar to avoid lateral loading of hooks and eyebolts. When a load is lifted from the ground keep well clear of the area beneath the load and the immediately surrounding area.

OPERATING AND MAINTENANCE MANUAL

Chapter 2 - Safety

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

Keep lifting acceleration and speed well within safety limits and never leave a suspended load attached t o a hoist any longer than strictly necessary. The weight values shown in the following table were obtained with the unit empty, pump P3and axial fans. The manufacturer does not supply load spreaders, lifting straps or hooks with the unit.

Model TAEevo Tech 402÷602

Model TAEevo Tech 015 020 031 051 081 101 121 161 201 251

Weight (kg) 144 149 208 2 31 341 385 399 415 595 678

Weight (lb) 317 328 459 5 09 752 849 880 915 1312 1495

Model TAEevo Tech 301 351 381 401 402 502 602 702 802

Weight (kg) 711 722 995 1080 1197 1246 1282 1585 1605

Weight (lb) 1567 1592 2194 2381 2639 2747 2826 3494 3538

Model TAEevo Tech 015÷161 Model TAEevo Tech 201÷401

OPERATING AND MAINTENANCE MANUAL

Chapter 2 - Safety

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

Model TAEevo Tech 702÷802

NOTE

Weight values are guideline, with the water circuit empty. The values may vary in relation to the configuration of the unit (pump type, supply type, and ventilation type).

2.4 Precautions to be adopted during installation

The connections to be prearranged concern the process water circuit. For connection to the mains electrical supply consult the technical documentation attached to the unit.

2.5 Precautions to be adopted during operation

The unit must be operated by competent personnel under the guidance of a qualified supervisor. All water pipelines must be painted or clearly marked in compliance with local safety prescriptions in force in the place of installation.

ATTENTION

Do no t remove or tamper with safety devices, protections, or the insulating materials installed in the unit and in the

auxiliary equipment.

All electrical connections must comply with local codes. The unit and its auxiliary equipment must be connected to earth and protected against short circuits and overloads. When mains power is switched on, lethal voltages are present in the electrical circuits and extreme caution must be exercised if any work must be carried out on the electrical system. Do not open the electrical equipment guard panels while the circuit is energized. Operations that require intervention with the electrical circuit energized must be performed only by qualified personnel using appropriate equipment and wearing apparel and devices designed to protect against electrical hazards.

2.6 Maintenance precautions

ATTENTION

When it is necessary to discharge waste material do not pollute water pipelines, groundwater or watercourses.

Avoid the combustion of materials that could produce fumes that are toxic and harmful when released into the atmosphere. Protect the environment by using only approved methods of disposal.

Keep a written record of all work carried out on the unit and the auxiliary equipment. The frequency and the nature of the work required over a period can reveal adverse operating conditions that should be corrected.

4OOKP

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ATTENTION

Use only the refrigerant specified on the data pl ate of the unit.

Make sure that all instructions concerning operation and maintenance are strictly followed and that the complete unit, with all accessories and safety devices, is kept in good working order. The accuracy of pressure and temperature gauges must be regularly checked. If values are discovered that exceed the permissible tolerances, the gauges must be replaced.

ATTENTION

Do not perform weldin g procedures or other operations that can produce heat in the vicinity of elements containing oil

or flammable liquids. Systems which may contain oil or flammable liqui ds must be completely purged and cleaned, e.g. w ith steam, before carrying out such operations.

Components in the vicinity must be protected with non-inflammable material and, if the operation is to be performed close to parts of the lubrication system or in the vicinity of components that may contain oil or inflammable liquids, the system must first be purged. Never use an open flame as a light source to inspect parts of the unit. For all units establish a suitable time interval for cleaning procedures.

ATTENTION

If replacement parts are needed use only original spares.

Take care not to damage pressure limiting devices. All guards must be refitted after carrying out repair or maintenance work.

ATTENTION

Check the direction of rotation of the motors (the pump, if installed) when starting the unit for the first time and after

work has been performed on the electrical connections or on the power supply sectioning device.

Do not use flammable liquids to clean the unit when it is running. If chlorinated hydrocarbon non-flammable fluids are used for cleaning, safety precautions must be taken against any toxic vapours that may be released.

ATTENTION

Before removing any panels or dismantling any part of the unit, carry out the following operations:

- Isolate the unit from the electrical power supply by disconnecting the supply upstream of the power feeding line.

- Lock out the disconnect switch in the “OFF” position by fitting a padlock.

- Affix a tag to the disconnect switch handle stating “WORK IN PROGRESS - DO NOT SWITCH ON”.

- Do not set the electrical power switch to ON or attempt to start the unit if it has been tagged out with a warning sign.

Coloured tracers can be used in service-maintenance operations. Inspect all refrigerant circuit unions including connectors, flanges, and more generally all critical po ints (open unions) in order to prevent possible leakage of refrigerant gas.

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2.7 Disposal, disassembly and recycling

The product was designed and built with recyclable materials. The correct waste sorting for the subsequent start-up of the equipment disposed of for recycling, treatment and for compatible environmental disposal, contributes to prevent possible negative consequences on the environment and health. It also favour the recycling of the materials the equipment is made up with. The unit may include all or some of the materials listed below:

• Refrigerant fluid R410A

• Copper parts

• Aluminium parts

• Carbon Steel parts

• Stainless Steel parts

•PVC parts

• CFC-free synthetic insulating material

• polystyrene parts

• Polyester oil

•Brass During dismantling, the compressor, pumps, fans, exchangers (if working) can be recovered for possible re-use thanks to specialised centres.All materials must be recycled or disposed of in compliance with the corresponding national regulations. Refrigerant, oil and possible anti-freeze solutions recycling must be done by specialised companies in compliance with the corresponding local and national legislation. Electrical and electronic materials cannot not be disposed of together with domestic general waste. They must be disposed of in special collection centres. Units must be treated at a centre specialised in re-conditioning, recycling and recovery of materials.

2.8 Refrigerant gases

The units are charged with R410A refrigerant Do not replace or mix one gas with another because different gases are not mutually compatible. To clean out a very heavily contaminated refrigerant system, e.g. after a refrigerant compressor burnout, a qualified refrigeration engineer must be consulted to carry out the task. The manufacturer’s instructions and local safety regulations should always be observed when handling and storing high pressure gas cylinders.

2.8.1 Refrigerants safety datasheet

Denomination: R410A (50% Difluoromethane (R32); 50% Pentafluoroethane (R125)).

INDICATION OF HAZARDS

Major hazards: Suffocation. Specific hazards: Rapid evaporation can cause frostbite.

FIRST AID MEASURES

General information: Do not attempt to administer liquids or solids to persons who have lost consciousness. Inhalation: Move victims to the open air. Use oxygen or artificial respiration if necessary.

Do not administer adrenaline or similar substances.

Contact with the eyes: Wash thoroughly with plenty of clean water for at least 15 minutes and seek medical

assistance.

Contact with the skin: Wash immediately in plenty of clean water. Remove contaminated clothing immediately.

FIRE-FIGHTING MEASURES

Means of extinction: Any. Specific hazards: Pressure rise. Specific methods: Cool containers with water spray.

MEASURES IN THE EVENT OF ACCIDENTAL LEAKAGE

Individual precautions: Evacuate personnel to safe muster points. Provide adequate ventilation. Use personal

protective equipment. Environmental precautions: Evaporates. Cleaning methods: Evaporates.

HANDLING AND STORAGE

Handling Technical measures/ precautions: Ensure the presence of sufficient ventilation and/or air extraction means in the

workplace. Recommendations for safe use: Do not breath fumes or aerosol. Storage: Close hermetically and store in a cool, dry and well-ventilated place. Store in its original

containers. Incompatible products: explosives, flammable materials, organic peroxide

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CONTROL OF EXPOSURE/INDIVIDUAL PROTECTION

Control parameters: AEL (8-h and 12-h TWA) = 1000 ml/m3 for each of the two components. Respiratory protection: For rescue and maintenance work in tanks use autonomous breathing apparatus. The

vapours are heavier than air and can cause suffocation, by reducing the oxygen available

for breathing. Protection of the eyes: Safety spectacles. Protection of the hands: Rubber gloves. Hygiene measures: Do not smoke.

PHYSICAL AND CHEMICAL PROPERTIES

Colour: Colourless. Odour: Faint. Boiling point: -52.8°C at atmospheric pressure. Flash point: Non-flammable. Relative density: 1.08 kg/l at 25°C. Solubility in water: Negligible.

STABILITY AND REACTIVITY

Stability: No reactivity if used in compliance with instructions. Materials to avoid: Highly oxidising materials. Incompatible with magnesium, zinc, sodium, potassi um and

aluminium.

Incompatibility is more critical if the metal is present in the form of powder or if surfaces

have been recently unprotected. Hazardous decomposition

products:

These products are halogen compounds, hydrofluoric acid, carbon monoxides (CO,

CO2), carbonyl halides.

TOXICOLOGICAL INFORMATION

Acute toxicity: (R32) LC50/inhalation/4 hours/lab. rats 760 ml/l

(R125) LC50/inhalation/4 hours/lab. rats 3480 mg/l Local effects: Concentrations significantly above the TLV can cause narcotic effects.

Inhalation of products in decomposition can lead to respiratory difficulty (pulmonary

oedema). Long-term toxicity: No carcinogenic, teratogenic, or mutagenic effects observed in laboratory animals.

ECOLOGICAL INFORMATION

Global warming potential GWP (R11=1):

1730

Ozone depletion potential ODP (R11=1):

Considerations on disposal: Usable with reconditioning.

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CHAPTER 3

TECHNICAL DATA

The data plate affixed to the unit bears the following technical data:

ATTENTION

The performance of the unit depends mainly on the flow rate and temperature of water in the user circuit, and the

condenser thermal exchange fluid temperature. These values are defined at the time of the offer.

3.1 Data for standard units

3.1.1 Dimensions

See attached drawings.

MODEL and CODE The mode l number and the code identify the size of the unit and the type of

construction.

MANUAL Code number of the manual. SERIAL NUMBER Construction number of the unit. MANUFACTURING YEAR Year of unit’s final testing. VOLTAGE/PHASE/FREQUENCY Electrical power supply characteristics. MAX CURRENT DRAW (I max) Unit current draw in limit operating conditions. SHORT CIRCUIT CURRENT Short circuit current. HIGHER MOTOR FLA Max. absorbed current. INSTALLED POWER (P max) Unit power input in limit operating conditions PROTECTION RATING According to European standard EN 60529 / NEMA 250 international standard. ELECTRICAL DIAGRAM Identifies the electrical diagram number. REFRIGERANT Refrigerant fluid in the unit. REFRIGERANT QUANTITY Quantity of refrigerant fluid contained in the unit. USER CIRC. FLUID Type of user fluid utilised by the unit (normally water) MAX ALLOWABLE PRESSURE (PS) Max. design p ressure of the user circuit. ALLOWABLE TEMPERATURE (TS) Minimum and maximum values of temperature of the user circuit; this should not be

confused with the maximum working temperature which is established when the offer is made.

CONDENSER COOLING FLUID Fluid used by the unit to cool the condenser. MAX WORKING PRESSURE Max. design pressure of the condenser cooling circuit (this data is not present if the

unit is air cooled condensed).

MAX. TEMPERATURE Condenser cooling circuit maximum design temperature (this information is not

given if the unit’s condenser is air-cooled).

SOUND PRESSURE LEVEL Free field sound pressure level in hemispherical radiation conditions (open field) at

a distance of 1 m from the condenser side of the unit and a height of 1.6 m from the ground.

AMBIENT TEMPERATURE Minimum and maximum values of ambient air temperature. WEIGHT Approximate weight of the unit before packing.

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3.1.2 Characteristics of pumps and fans

NOTE

The values in the table may vary in relation to the unit model and configuration. In this case refer to the offer data.

NOTE

The pressure head is the pressure head available in the user’s premises. The installed pump my differ with respect to the standard pump. For the flow rate and pressure head values two numbers are specified: the first refers to nomin al conditions and the second refers to maximum conditions.

3.1.3 Sound level measurements

Model TAEevo Tech 015 020 031 051 081 101 121 161

Tank

capacity

water volume (gal) 16 16 30 30 37 67 67 67

Pump P3

water flow rate (gpm) 2.0/21.1 2.0/21.1 3.8/21.1 4.8/21.1 9.5/42.3 12.1/42.3 15.2/85.4 18.0/85.4 pump pressure

head

(PSI) 44.9/25.4 44.9/25.4 44.1/28.7 43.7/29.9 4 3.1/22.2 42.4/25.8 42.5/23.4 42.3/24.4

rated power (kW) 0.75 0.75 0.75 0.75 0.9 0.9 1,85 1,85

Pump P5

water flow rate (gpm) 2.0/26.4 2.0/26.4 3.8/26.4 4.8/26.4 9.5/66.0 12.1/66.0 15.2/66.0 18.0/66.0 pump pressure

head

(PSI) 85.7/44.9 85.7/44.9 84.3/50.6 83.4/49.2 8 7.5/50.1 86.6/56.9 85.4/56.9 84.2/57.5

rated power (kW) 1.5 1.5 1.5 1.5 3.0 3.0 3.0 3.0

Axial flow

fan

No. of fans 11111222 total airflow (cfm) 2795 2470 4530 3590 5825 9945 9415 9415

Model TAEevo Tech 201 251 301 351 381 401 402 502

Tank

capacity

water volume (gal) 92.5 92.5 92.5 92.5 108 108 1 32 132

Pump P3

water flow rate (gpm) 19.0/84.5 19.0/84.5

26.5/

105.7

30.9/

105.7

39.5/

220.1

43.9/

220.1

37.9/

220.1

37.9/

220.1

pump pressure head

(PSI) 42.4/28.9 42.4/28.9 45.9/19.3 45.2/18.5 5 2.2/20.4 52.1/20.4 52.4/25.0 52.4/25.0

rated power (kW) 1.8 1.8 2.2 2.2 4 4 4 4

Pump P5

water flow rate (gal)

19.0/105.7 19.0/105.7

26.5/

105.7

30.9/

105.7

39.5/

220.1

43.9/

220.1

37.9/

220.1

37.9/

220.1

pump pressure head

(PSI) 75.6/47.7 75.6/47.7 74.8/47.8 74.0/47.0 7 7.6/42.9 77.2/42.9 77.7/47.6 77.7/47.6

rated power (kW) 4 4 4 4 7.5 7.5 7.5 7.5

Axial flow

fan

No. of fans 22332222 total airflow (cfm) 1 1535 11415 15625 15625 2 5662 24367 25895 25070

Model TAEevo Tech 602 702 802

Tank

capacity

water volume (gal) 132 179 179

Pump P3

water flow rate (gpm) 37.9/220.1 69.2/220.1 81.3/220.1 pump pressure

head

(PSI) 52.4/25.0 62.7/36.0 61.4/36.0

rated power (kW) 4 5.5 5.5

Pump P5

water flow rate (gal) 37.9/220.1 69.2/378.6 81.3/378.6 pump pressure

head

(PSI) 77.7/47.6 70.0/30.9 69.7/30.9

rated power (kW) 7.5 11.0 11.0

Axial flow

fan

No. of fans 2 3 3 total airflow (cfm) 24 285 43967 42378

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* at distance of 1 m (3.2 FT) ** global

Test conditions

Noise levels refer to operation of the unit at full load in nominal conditions. Sound pressure level in hemispherical irradiation conditions at a distance of 1 m (3.2 FT) from the condensers side of the unit and height of 1.6 m (5.2 FT) from the ground. Values with tolerance of ± 2 dB.

Sound pressure level: according to ISO 3744.

Fan Lp dB(A) * Lw dB(A) ** TAEevo Tech 015 axial 69,5 82,5 TAEevo Tech 020 axial 68,9 81,9 TAEevo Tech 031 axial 69,6 82,6 TAEevo Tech 051 axial 70,7 83,7 TAEevo Tech 081 axial 70,9 83,9 TAEevo Tech 101 axial 72,0 85,0 TAEevo Tech 121 axial 71,2 84,2 TAEevo Tech 161 axial 72,1 85,1 TAEevo Tech 201 axial 74,2 87,2 TAEevo Tech 251 axial 74,1 87,1 TAEevo Tech 301 axial 75,6 88,6 TAEevo Tech 351 axial 75,3 88,3 TAEevo Tech 381 axial 78.0 91,0 TAEevo Tech 401 axial 80.2 93,2 TAEevo Tech 402 axial 79,5 92,5 TAEevo Tech 502 axial 79,6 92,6 TAEevo Tech 602 axial 79,3 92,3 TAEevo Tech 702 axial 79.4 92,4 TAEevo Tech 802 axial 80.6 93,6

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CHAPTER 4

DESCRIPTION

4.1 Components

Data for materials are referred to standard units. Non-standard materials may be utilised in order to meet specific requirements. In this case refer to the offer data. The units are basically composed of the following parts:

• Refrigerant compressor

• Condenser

• Evaporator

•Tank

•Pump

• Frame/cabinet

• Electronic controller

4.1.1 Refrigerant circuit

TAEevo Tech 015÷401 models feature a single refrigerant circuit with one or two compressors connected in parallel (tandem). TAEevo Tech 402÷802 models feature two refrigerant circuits with two compressors connected in parallel (tandem). Each refrigerant circuit, is equipped with the following components:

• refrigerant fluid utilised R410A;

• hermetic scroll compressor;

• pressure switch for fans with On/Off control (only TAEevo Tech 015÷401);

• high and low refrigerant pressure switches;

• high pressure transducer for fan speed control and for unloading (modes TAEevo Tech 402÷802);

• thermostatic lamination valve complete with external pressure equalizer;

• filter dryer;

• liquid sight-glass;

• refrigerant pressure gauges (from TAEevo Tech 031);

• schrader service valves.

For more information consult the attached diagrams.

4.2 Compressors

The compressors are of the SCROLL type and are characterised by high energy efficiency, low vibration and consequent very low noise during normal operation. The compressors are cooled by the refrigerant on the suction line, protected against possible overheating of the windings by an internal module that monitors windings temperature, and protected upline by thermal magnetic cutouts. These components are housed in an enclosed compartment, but they are readily accessible.

NOTE

During the short periods of starting and stopping the compressor you may hear a metallic noise due respectively to the initial contact between the coils and to the momentary reversal of their rotation. This noise is absolutely normal and does not affect the reliability of the compressor.

ATTENTION

At the time of the first start following a prolonged stoppage lasting several days, ensure the crankcase heater of each

compressor is switched on at least 12 hours before pressing the start button.

NOTE

TAEevo Tech 402÷802 units can be optionally fitted with compressor stating with a Soft Starter. The Soft Starter is linked to each compressor and it serves to limit peak current at the time of compressor starting.

- Units equipped with soft starters can operate up to a maximum ambien t temperature of 40°C, beyond which the unit simply stops, without tripping any alarms.

- The soft starters are not compatible with capacitive devices (e.g. power factor correction capacitors) installed between the soft starter and the compressor motor. Any static or dynamic power factor correction systems installed upline from the main power circuit breaker must not operate simultaneously with staring of the soft starter.

4.3 Condenser

Condensation occurs in finned core coils composed of copper tubes and headers, corrugated aluminium fins, and galvanized sheet metal shoulders.

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4.4 Evaporator

The evaporator is of the finned core type; water flows in contact with the finned surface at velocities such as to ensure low pressure drops, while the refrigerant flows through the tubes. In these models the exchanger is protected from the risk of ice formation caused by low evaporation temperatures, with antifreeze strategies handled by the electronic controller. The evaporator water outlet temperature is controlled by a probe. If negative room/water temperatures are required, a mixture of water and glycol must be used. To drain the circuit refer to “9.4 Draining the process water circuit”.

4.5 Tank

The storage tank is cylindrical. The tank can be protected against freezing by means of an electric heater managed by the electronic controller. A level sensor in the tank serves to signal low water level conditions. The standard supply includes anti-condensation cladding, a drain valve and an air bleed valve. An internal bypass between the water delivery and return connections makes it possible to read the anti-freeze probe if the unit’s process water inlet and outlet connections are inadvertently closed. In this case the unit stops due to tripping of the anti-freeze alarm and the shut-off valves must be reopened. The bypass serves exclusively to allow an anti-freeze alarm to trip (if present) and to allow the pump to run with a reduced water flow rate without damage. It is advisable to avoid repeated anti-freeze alarm trip cycles in the foregoing conditions.

4.6 Pump

The unit is equipped with centrifugal pumps that can be of two different types, characterised by their ability to provide different pressure heads depending on requirements (3 and 5 barg / 43.5 and 7 2.5 PSI pump). The unit can also be su pplied without an installed pump. The electrical characteristics of the compatible pump are specified in the wiring diagram. The pump seals are in silicon carbide/silicon carbide/EPDM.

ATTENTION

Bleed the circuit by unscrewing the bleed cap on the pump whenever the hydraulic circuit is filled. See 5.4 “Hydraulic

connections”.

NOTE

The pump must never run dry.

4.7 Fans

4.7.1 Axial

The fans are of the axial flow type, comprising a diecast aluminium fan wheel with sickle shaped blades. The protection rating of the fans is IP54. All fans feature insulation class F to ensure they are compatible with outdoor operation in all climates. Fan assembly is completed by an upper safety grille (supporting the fan).

For models TAEevo Tech 031÷802 it is possible to fit a semi-transparent container kit, secured to the rear of the unit. In steady state conditions the water level in the container must be approximately at the half-way point. In this case water filling is performed via the container kit.

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4.8 Cabinet

The entire plinth, the uprights, and the outer panels are made of galvanized carbon steel sheet and are assembled by means of screws and/or rivets. All panels undergo phosphor degreasing treatment followed by ep oxy polyester power coating. The frame is designed to allow easy access to all components of the unit.

4.9 Materials in contact with the liquid to be cooled

Standard chillers: carbon steel, copper, aluminium, zinc, brass, stainless steel and plastic materials specifically:

• evaporator with copper tubes, aluminium fins and galvanized sheet metal shoulders;

• carbon steel tank. Chillers with non-ferrous hydraulic circuit (TAEevo Tech 015÷401): stainless steel (AISI 304), copper, brass and plastic materials. Specifically:

• with copper tubes and fins and brass shoulders;

• tank in AISI 304 stainless steel. The pump mechanical seals are in silicon carbide/silicon carbide/EPDM.

4.10 Overall dimensions and minimum clearances with respect to walls

See the enclosed electrical diagrams.

4.11 Electrical circuit

Refer to Chapter 5 “Installation” for information on electrical hook-ups and consult the attached diagrams.

Model Width Depth Height

TAEevo Tech 015÷020

(mm)

(in)

560

1265

49.8

794

31.2

TAEevo Tech 031÷051

(mm)

(in)

660

1310

51.6

1400

55.1

TAEevo Tech 081÷161

(mm)

(in)

760

29.9

1865

73.4

1447

TAEevo Tech 201÷351

(mm)

(in)

865

2255

88.8

2065

81.3

TAEevo Tech 381÷401

(mm)

(in)

1150

45.2

2790

110

2091

82.3

TAEevo Tech 402÷602

(mm)

(in)

1255

49.4

3295

129.7

2140

84.2

TAEevo Tech 702÷802

(mm)

(in)

1251

49.2

3350

131.9

2153

84.7

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CHAPTER 5

INSTALLATION

ATTENTION

Before installing or operating these units, ensure that all personnel involved have read and understood Chapter 2

“Safety”. The unit must be installed in accordance with current national legislation in the country of use.

5.1 Inspection

As soon as the unit has been unpacked check it carefully for damage.

5.2 Location

1. The unit can be installed either outdoors or in an enclosed environment, depending on the degree of IP protection of the electrical panel and the unit itself.

2. If the unit is installed indoors the place of installation must be well ventilated. In certain cases it may be necessary to install ventilation fans or extractor fans in order to reduce room temperature.

3. The ambient air must be clean, avoid sea ambients (brackish air), and not contain flammable gas or corrosive solvents.

4. The minimum and maximum working ambient temperature are specified on the unit data plate. Ensure that the unit is not installed in flows of hot air emitted by other equipment. In extremetemperature conditions, the protection devices may trip.

5. Do not obstruct or interfere with the air flow produced by the unit; comply strictly with the minimum spaces/ distances specified in the installation drawings.

6. The machine must be installed on a perfectly horizontal flat surface, built and calculated to withstand the machine’s operating weight, especially in the contact points highlighted in the installation drawing. In the event

of installations which fail to comply with the above requirements, the manufacturer’s warranty cover will immediately become null and void and the unit could malfunction or even lock out.

7. Leave free space around the unit for access during service interventions (see Attachments).

8. Do not install the plant in sites exposed to strong winds; if unavoidable, install suitable windscreens.

See point 1.

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5.3 Freeze protection

Even if the minimum operating temperature is higher than 0°C/32°F, during shutdown periods in the cold season the unit may be subject to temperatures that are lower than 0°C/32°F. In such cases if the water is not drained out of the unit ethylene or propylene glycol antifreeze should be added to the water in the following percentages:

In accordance with the chilled water outlet temperature, to avoid the formation of ice ethylene or propylene glycol antifreeze should be added to the water in the following percentages:

NOTE

The water flow rate must correspond to the value stated in the technical specifications or in the selection software. The conditions specified in the table do not guarantee anti-freeze protection with the machine operating in bypass mode between water delivery and return, and with the machine water inlet and outlet fittings shut off.

ATTENTION

The anti-freeze setting is 4°C/39°F. To reduce the anti-freeze setting edit parameter AL26.

For water outlet temperatures lower than 6 °C you must add a suitable quantity of antifreeze solution.

5.3.1 Operating limits

The operating limits are decided at the time of sale. Refer to the data specified in the contract.

Ambient T up to

[°C] (°F)

Ethylene Glycol

[% by weight]

Propylene Glycol

[% by weight]

0 (32) 0 0

-5 (23) 15 18

-10 (14) 25 27

-15 (5) 30 33

-20 (-4) 40 40

Water outlet T up to

[°C] (°F)

Ethylene Glycol

[% by weight]

Propylene Glycol

[% by weight]

Standard machine

7 (45) 0 0 3 (37) 20 20 0 (32) 20 25

-3 (27) 25 30

-5 (23) 30 30

-7 (19) 35 35

-10 (14) 35 40

Special machine

-15 (5) 45 45

-20 (-4) 50 50

Ambient air temperature

Evaporator water

inlet temperature

Evaporator water

outlet temperature

Water temperature

gradient

Min Max Min Max Min Max Min Max

°C/°F °C/°F °C/°F °C/°F

-5/23

43/109

(1)

0/32 35/95 -5/23 30/86

4/7 10/18

5/23

43/109

(1)

-5/23 35/95 -10/14 30/86

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NOTE

For water outlet temperatures <= +5°C /41°F we recommend the use of anti-freeze solutions (compatible with the contact materials); (1) reference value for the range with outlet water temperature of 15°C/59°F.

5.4 Hydraulic connections

NOTE

All the unit’s hydraulic connections must be made by the user.

1. Connect the unit to the water pipes observing the water flow direction as shown in the attached dimensional drawings.

2. Provide two valves (one at the inlet, one at the outlet) to isolate the unit in the case of maintenance work without having to empty the user water circuit.

3. Fill the tank with water using:

• a remote filling system, bleeding the air from the tank manually if necessary by means of the manual bleed

valve.

• if the water circuit is subject to frequent infiltrations of air it is good practice to install an automatic bleed

valve.

4. If the unit is supplied without pump make sure the pump installed by the user has its suction port connected directly to the tank outlet connection in the event of a closed user circuit.

5. If the unit is supplied without pump make sure the pump installed by the user has its outlet port connected directly to the unit inlet connection in the event of a user circuit that is open to the atmosphere.

NOTE

The pump must never run dry.

ATTENTION

If the unit is not equipped with the hydraulic uni t a pump must be inst alled for the evaporation water circuit.

For any maintenance requirements it is advisable to install a water drain cock at the lowest point of the circuit.

Evaporator water connections sizes:

NOTE

The machine interior is equipped with the fittings for BSP/NPT reducers, to be installed by the user.

Unit model TAEevo

Tech

015÷020 031÷051 081÷161 201÷351 381÷401

Evaporator IN/OUT water connections

Rp 3/4” R p 1” Rp 1” 1/2 Rp 2” Rp 2” 1/2

Unit model TAEevo Tech 402÷602 702÷802 Unit with tank maximum pressure [bar/PSI]

Evaporator IN/OUT water connections

Rp 2” 1/2 Rp 3” 6/87

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Process water inlet Process water outlet

Pump type: Ebara 3D Pump type: Ebara 2CD

Pump type: Lowara NSC Pump type: Lowara CIE

When filling the circuit with liquid check to ensure the absence of air bubbles and contaminants. If the pump runs noisily or emits anomalous noise it may be necessary to bleed the liquid circuit in order to prime the pump. The procedure is as follows:

• unscrew the filler/breather plug at the top of the pump

• fill the hydraulic circuit until water starts to overflow from the filler hole

• refit the plug and tighten it Repeat the operation if the pump continuous to run noisily, in such a way as to eliminate any air that had previously remained trapped in the impeller vanes.

Load/vent plug

Drain plug

Load/vent plug

Drain plug

Load/vent plug

Drain plug

Load/vent plug

Drain plug

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5.4.1 Evaporator water limit features

ATTENTION

For correct operation, install a fil ter (with mesh of 0,5/0,8 mm) close to the unit’s water inlet connection. Failure to

comply with this requirement may cause irreparable damage to the evaporator.

5.5 Expansion vessel

In the presence of a closed hydraulic circuit an expansion vessel must be installed. The expansion vessel must always be installed on the pump suction side. To calculate the minimum volume of the expansion vessel use the formula shown below, which is valid if the circuit pressure is less than or equal to 0.5 bar / 7.2 PSI when the pump is idle and the maximum working pressure of the expansion vessel is greater than or equal to 4 bar / 58 PSI. The volume of expansion vessel V in litres is provided by the formula: V = 2 · Vt · (Ptmin - Ptmax) where:

Calculation example: Vt=200 litres

percent ethylene glycol by volume=30% tmin=5°C from table Ptmin=(1.045+1.041)/2 = 1.043 tmax=40°C from table Ptmax=1.0282 V=2 · 200 · (1.043 - 1.0282)=5.92 litres

Vt= Total circuit volume in litres Ptmin= Specific density at minimum temperature that can be reached by the water throughout a twelve month

period expressed in °C (also during system shutdown)

Ptmax= specific density at minimum temperature that can be reached by the water throughout a twelve month

period expressed in °C (also during system shutdown)

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Specific densities table P

5.6 Electrical connections

The machine must be connected to the main power supply in accordance with the laws and regulations in force in the country of installation, after verifying the wiring diagram annexed to the unit. Voltage, frequency and the number of phases must comply with the values indicated on the machine data plate. Main distribution systems in United States:

Main distribution systems in Canada:

% Glycol 0% 10% 20% 30% 40%

Temperature [°C](°F)

-20(-4) 1.0036 1.0195 1.0353 1.0 511 1.0 669

-10(14) 1.0024 1.0177 1.033 1.0483 1.0635 0(32) 1.000 8 1.0155 1.0 303 1.045 1.0598

10(50) 0.9988 1.013 1.0272 1.0414 1.0556 20(68) 0.9964 1.0101 1.0237 1.0374 1.051 30(86) 0.9936 1.0067 1.0199 1.033 1.0461

40(104) 0.9905 1.003 1.0156 1.0282 1.0408

System Nominal Voltage Utilization Voltage

120 115 110

240/120 230/115 220/110

600 480 240

575 460 230

550 440 220

480 460 440

480/277 208/120

460/266 200/115

440/254 190/110

240/120 230/115 220/110

System Nominal Voltage Utilization Voltage

240 480 600

230 460 575

220 440 550

240/120 230/115 220/110

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For mains power input:

1. Connect the machine (terminal in the electrical panel) to the earth system of the building;

2. Provide protection against direct contact of at least NEMA Type 1 upline from the power cable;

3. Fit a device protecting the power cable from overcurrent (short-circuit) (see indication in the electrical diagram) upline from the power cable. For this purpose, all protection devices must be homologated (“listed”).

4. Use conductors which can carry the maximum current required at the maximum ambient operating temperature, according to the type of installation chosen (seeindication in the electrical diagram). Use only UL marked copper cables, in conformity with NEC (NATIONAL ELECTRICAL CODE) and CEC (CANADIAN ELECTRICAL CODE).

5. After the connection to the circuit breaker/switch (as indicated in the wiring diagram), the unit’s power cable must exit the unit by the appropriate hole positioned on the back panel and identified by a l abel with the indication of the power supply.

5.7 Phase Monitor

By means of a Phase Monitor device (see unit electrical schematic) the electronic controller is able to monitor the unit’s power supply, stopping the unit in the case of missing phases or an incorrect phase sequence. Tripping of the Phase Monitor shuts down the unit and displays alarm ALc1. A certain level of power supply instability is perfectly normal. If the frequency with which the unit is shut down due to tripping of the Phase Monitor tends to increase unacceptably, contact your local electricity company to find a solution.

ATTENTION

Never tamper with the Phase Monit or under any circumstances.

600 480 240

575 460 230

550 440 220

600 480 240

575 460 230

550 440 220

600/347 480/277

416*/240

208/120

575/332 460/266

400*/230

200/115

550/318 440/254

380*/220

190/110

System Nominal Voltage Utilization Voltage

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CHAPTER 6

STARTING

ATTENTION

Before starting this type o f unit, ensure that all personnel invo lved have read and understood Ch apter 2 “Safety”.

ATTENTION

When first starting after a stop of several days, ensure that the casing heating element of each compressor is switched

on for at least 12 hours before pressing the start button.

ATTENTION

On starting the unit:

1) If the high pressure alarm trips (b1HP/b2HP/b1hP/b2hP) without the compressor having started, stop the unit immediately by setting it to off on the controller. Now check the refrigerant circuit high pressure value.

2) If the Phase Monitor alarm ALc1 trips check the correct phase sequence upline from the unit. The ALc1 alarm may be generated by tripping of the protections upline from the phase monitor.

1. Check that the unit shut-off valves are open.

2. Check that the tank has been completely filled with water and that the air has been bled out correctly.

3. Check that the ambient temperature is within the range indicated on the unit’s data plate.

4. Use the pressure gauge on the rear panel of the unit to check that the pressure is approximately 0.5 bar / 7.2 PSI (only for closed hydraulic circuits).

5.Check that the main switch is in the OFF position (“O”).

6.Check that the unit power suppl y voltage is correct.

7.Power the unit by means of the line protection d evice.

8.Close the unit’s main switch by setting it to the ON position (“I”).

9.Check that water is flowing through the evaporator.

10.To start the unit perform the following procedure (For more information consult Chapter 7

“Electronic controller”)

From unit OFF (stand-by) press and release button to switch the unit on or off in chiller mode. With the unit on LED is lit.

11. On three-ph ase power supply models make sure the compressor operates correctly (no anomalous noise and no overheating) and check that the fans and the pump (if present) rotate in the correct direction. If necessary, invert two phase wires of the power supply line.

12. Check that the pressure difference between the pressure gauge reading with the pump running and the reading with the pump idle is higher than the available pressure head with the maximum pump flow rate. If the difference is lower this means that the water flow rate is higher than the maximum permissible value. To avoid damaging the pump increase the pressure drop in the hydraulic circuit, for example by partially closing a shut-off cock on the pump outlet.

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13. If at the time of first startup the ambient temperature is high and the water temperature in the hydraulic circuit is significantly higher than the operating value (e.g. 25-30°C / 77-86°F) this means that the chiller is starting in overloaded conditions resulting in possible tripping of the protections. To reduce the overload you can progressively close (without closing it completely!) a valve at the chiller outlet to reduce the flow rate of water passing through it. As the water temperature in the hydraulic circuit approaches the working value, the valve can be re-opened.

14. The unit is now ready to start operating. If the thermal load is lower than that produced by the unit, the water temperature decreases until it reaches the setpoint value set following the instructions. Chapter 7 “Electronic controller” Once the SETPOINT value has been reached the controller monitoring the water inlet temperature will stop the compressor. In these conditions the water pump runs constantly.

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CHAPTER 7

ELECTRONIC CONTROLLER

7.1 User interface

7.2 Function of buttons

The icon is flashing during the countdown of the interval between defrost cycles. The icon is steady on during the defrost cycle (not used).

Compressors operating status icon, lit if the associated compressor is running. Flashing if the compressor is in timer controlled starting mode.

Shows a temperature value when lit. If lit in programming mode show temperature setpoints or differentials.

Flashing if at least one alarm is present

Flashing if the pressure switch digital input is active with the pump running.

Lower display

Shows a pressure value when lit. If lit in programming mode shows pressure setpoints or differentials.

Clock icon (pumps, compressors operating hours). When lit in programming mode shows the work load hours. Flashing in the functions menu indicates the time remaining before defrost start.

Lit if at least one of the water pumps is running. FC (not used). AUX lit with tank auxiliary heater on.

Lit if heaters (anti-freeze) heaters are on. Heat pump operating mode icon (not used).

Lit if the domestic hot water production function is active (not used).

Lit if at least one condensing fan is running.

Upper display

Chiller operating mode icon.

Press twice from the main mask to display the real working setpoint (if present). Press for 3 seconds from the main mask to edit the chiller setpoint.

Press once in the lower display probes menu to alternate the display of the circuits.

Press once from the main mask to display the chiller setpoint.

Press once in programming mode to edit or confirm a parameter value. Press once in the ALrM menu to reset the alarm.

Press once to switch the unit ON or OFF in heat pump mode (not used in chiller-only units).

Press once to switch the unit ON or OFF in chiller mode.

Press once to gain access to the functions menu. Press once in programming mode to quit the parameters or parameter editing mode.

Press once to display temperature/pressure values on the upper/lower display. Press once in programming mode to scroll the parameters or increase a parameter value. Press for 1 second in programming mode to change the parameters access level. See “7.13.1 Access to parameters”.

Press once from the main mask to display temperature/pressure values on the upper/lower display. Press once in programming mode to scroll the parameters or decrease a parameter value.

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7.2.1 Function of combined buttons

7.3 Remote terminal

There is a choice of two types of terminals for converting the unit to remote control (with LED display or LCD keypad). The terminal generally shows the same parameters as the local display. The display can be customized with the dedicated parameters (see “7.41 Parameters description-settings”) In the absence of communication between the control unit and the remote terminal the upper display shows the message “

” (no link).

NOTE

To convert the semi-graphic LCD display on the door of the electrical panel (mod. TAEevo Tech 381÷802) to remote control, the relevant remote control kit must be ordered.

7.4 Probes key

This chapter refers to the probes; for the positioning of these probes consult the refrigerant circuit diagram and the electrical diagram. Descriptions of the probes utilised are given below: Models TAEevo Tech 015÷401:

Models TAEevo Tech 402÷802:

BUTTONS FUNCTION

To enter programming mode (pressed for 3 seconds).

To exit programming phase.

In programming mode: Press once from the main mask to display the “user” parameters; Press twice from the main mask to display the “service” parameters.

Duplicate remote control with LED display. Semi-graphic remote control with LED display.

Probe code Board label Board terminals Description

BTWOT EOut PB1 Tank water outlet temperature probe (temperature control) BEWOT Out1 PB2 Evaporator water outlet temperature probe (anti-freeze)

BAT1 Et PB6 Ambient temperature probe

Probe code Board label Board terminals Description

BTWOT EOut PB1 Tank water outlet temperature probe

BEWOT1 Out1 PB2 Evaporator 1 water outlet temperature probe

BHP1 CdP1 PB3 Circuit 1 high pressure transducer BHP2 CdP2 PB4 Circuit 2 high pressure transducer

BEWOT2 Out2 PB5 Evaporator 2 water outlet temperature probe

BAT1 Et PB6 Ambient temperature probe

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7.5 Unit start/stop

The unit can be switched on and off as follows:

• From the keypad (local or remote)

• From a digital input configured as remote ON/OFF

• Makes it possible to gain access to parameters programming mode.

NOTE

In case of a power loss, when pow er is restored the unit will be ON if it was ON at the time of power loss, and OFF if it was OFF.

7.5.1 Start from the keypad

From unit OFF (stand-by) press and release button to switch the unit on or off in chiller mode. With the unit on LED is lit.

Stand-by mode is set each time the unit is switched off from chiller operating mode. Also in stand-by the controller makes it possible to:

• Display the measured values

• Manage the alarm situation by displaying and signalling.

• Programmable

When the unit is in stand-by the controller shows the label

 on the display.

7.5.2 Start from a digital input

When the unit is in OFF status from a digital input the controller shows the label

. on the display.

7.6 Setpoint

7.6.1 Display the setpoint

To display the setpoint press and release the key. With the unit in stand-by the lower display will show SetC (chiller set). The upper display will show the set value.

7.6.2 Change the setpoint

To change the unit working setpoint press the key for at least 3 seconds and the working setpoint SetC (chiller set) will appear in flashing mode.

The setpoint can be changed using the or buttons. To save the new setpoint, press or wait for the time-out to exit programming mode.

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7.7 Dynamic setpoint function

The regulator allows the operating setpoint to be modified by adding or subtracting a coefficient proportional to the external air temperature. For industrial applications, the purpose of this function is to prevent condensate from forming on the surface of the component cooled by the unit. The operating setpoint increases proportionally as the ambient temperature rises; the difference between the ambient temperature and the operating setpoint is a value which can be set by means of parameter Sd03, with values from 23 ÷ 41°F. To activate the function, set the following parameters: Chiller setpoint ST01= 32°F Max. increase in dynamic setpoint Sd01= 86°F Temperature differential between external air and dynamic setpoint Sd05= 54°F External air temperature - dynamic setpoint delta Sd03= 23 to 41°F The graphs below illustrate operation of the dynamic setpoint (SEtr) with Sd03 set at 39°F and 25°F. For example, with ambient T of 75°F the operating setpoint SEtr= 68°F in case 1 and SEtr= 82°Fcase 2.

Case 1 - Sd03= 39

Case 2 - Sd03= 25

3239507580100125

100

Sd3

Ambient air T.

SEtr

Sd3

100

Ambient air T.

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7.8 How to display the internal values of a circuit

NOTE

This chapter is not applicable to single circuit units.

In normal operating mode circuit no. 1 is always displayed by default. To switch from one circuit to another use the or buttons to select an identification label within a circuit and press the button.

7.9 Functions menu button “Menu”

Access to Functions Menu enables the user to:

7.9.1 CrEn - Enable or disable the single circuit

With the CrEn submenu the operation of a single circuit can be disabled for maintenance purposes or to isolate it in the event of malfunctions. Proceed as follows:

• Open the functions menu by pressing

• With the or buttons select the function CrEn on the lower display;

• Press . The lower display shows Cr1E while the upper display shows En;

• Use the or buttons to display the label Cr1E or Cr2E;

• Press the button for 3 seconds in correspondence with label Cr1E or Cr2E . The upper display shows En

in flashing mode;

• Use the or buttons to select label diS (circuit operation disabled) or En (circuit operation enabled);

• Press to confirm the set function and proceed to the next circuit (only the loads associated with the circuit are disabled);

To exit the CrEn function and return to normal display mode press or wait for the time-out. In normal operation if one of the circuits is set to diS the lower display shows a flashing label alternated with the parameter shown at that time. If circuit 1 is in diS mode the label shown on the lower display is b1dS = circuit 1 disabled. If circuit 2 is in diS mode the label shown on the lower display is b2dS = circuit 2 disabled.

NOTE

Label b2dS is present only on units with two refrigerant circuits.

ATTENTION

The CrEn function is enabled also on single circuit units. If you proceed to disable the only circuit present on these

units, the unit will suspend its entire cooling capacity.

ALrM function

Display and reset active alarms (see 7.11.1). Display and clear the alarms log (see 7.12.12).

Upload instrument parameters to the smart key (see 7.14).

Enable / disable operation of a single circuit

ALOG function

UPL function

CrEn function

COEn function

COSn function

Cond function

dF function

Enable / disable operation of a single compressor

Display and reset the number of starts of each compressor

Display and reset the running hours of the controlled loads Display the percentage of operation of the proportional outputs for control of the

condensing fans speed

Tank heater probe display Display the time remaining before the start of the defrost cycle (heat pumps only).

uS function

Hour function

ENABLE or DISABLE the operation of a water pump using the key (if present)

POEn function

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7.9.2 COEn - Enable or disable the single compressor

With the COEn submenu the operation of a single compressor within a circuit can be disabled for compressor maintenance purposes or to isolate it in the event of malfunctions. The compressor status labels in the COEn function are:

• CO1E = operating status of compressor no. 1;

• CO2E = operating status of compressor no. 2;

• CO3E = operating status of compressor no. 3 (only two circuit units) ;

• CO4E = operating status of compressor no. 4 (only two circuit units) ;

To enable or disable the compressors proceed as follows:

• Open the functions menu by pressing

• With the or buttons select function CrEn

• Press ; the lower display shows CO1E whil e the upper display shows En

• Use the or buttons to select the required label on the lower display. The upper display shows En

• Press for 3 seconds in correspondence with the label identifying the compressor to be disabled

• The upper display shows flashing En; use or to select the diS(compressor operation disabled) or En

(compressor operation enabled) function

• Press to confirm the selected function and proceed to the next compressor

To exit the COEn function and return to normal display mode press or wait for the time-out.

7.9.3 COSn - Display and reset the number of compressor starts

The number of compressor starts can be viewed in the COSn submenu. The labels displayed are:

• C1S compressor 1 starts

• C2S compressor 2 starts

• C3S compressor 3 starts

• C4S compressor 4 starts

The number of starts is displayed in the lower display with a resolution of 10 starts. For example, if the number 2 is displayed, the compressor starts are 20 in number. To display the number of starts proceed as follows:

• Open the functions menu by pressing

• With the or buttons select the function COSn

• Press . The label of the single load C1S is shown on the upper display; the lower display shows the number

of starts multiplied by 10.

• With buttons or display all the configured compressors.

To return to normal display mode press or wait for the time-out. To reset the number of compressor starts proceed as follows:

• Open the functions menu by pressing

• In function COSn use or to select the label C1S or C2S or C3S or C4S.

• Press for 3 seconds in correspondence with load C1S or C2S or C3S or C4S. The lower display now

shows the number of starts in flashing mode (reset in progress) and then the value “0” indicating that the number has been reset.

• At this point the starts of the next compressor are displayed.

To exit the reset function and return to normal display mode press or wait for the time-out.

7.9.4 Hour - Display and reset the running hours of the loads

In the Hour submenu you can display the running hours of each compressor and also of the water pump. The labels displayed are:

• CO1H compressor 1 running hours

• CO2H compressor 2 running hours

• CO3H compressor 3 running hours

• CO4H compressor 4 running hours

• EP1H evaporator water pump running hours

• EP2H evaporator second water pump running h ours

As for the number of starts, the running hours are shown on the upper display with a reso lution of 10 hours. To view the running hours proceed as follows:

• Open the functions menu by pressing

• With the or buttons select the Hour function

• Press . The label of the single compressor is shown on th e lower display; the upper display shows the number of running hours multiplied by 10. The icon will be illuminated.

• With buttons or display all the configured compressors.

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To return to normal display mode press or wait for the time-out. To reset the running hours proceed as follows:

• Open the functions menu by pressing

•In the Hour function use or to select the label CO1H or CO2H or CO3H or CO4H or EP1H or EP2H

• Press fo r 3 seconds in correspon dence with the compressor label CO 1H or CO2H or CO3H or CO4H or EP1H or EP2H; the upper display will show the running hours in flashing mode (reset in progress) followed by 0 to confirm that the value has been reset, and then progresses to the next load.

To exit the reset function and return to normal display mode press or wait for the time-out.

7.9.5 Cond - Display of percentage / number of condensing steps

In the functions menu you can view the working percentages of the fans proportional o utput. Cnd1 Condensing fans control proportional output. Proceed as follows to display:

• Open the functions menu by pressing

• With the or buttons select the Cond function

• Hold down button . The lower display shows Cnd1, the upper display shows the work percentage.

To return to normal display mode press or wait for the time-out. In dual circuit units, to display the number of fan steps activated open the functions menu by pressing :

• With the or buttons select the Cond function

• Press . The lower display shows Cnd1, the upper display shows the number of steps activated.

Use or to select the label Cnd1 on the lower display; the upper display to shows the work percentage from 0 to 10 0 %:

To return to normal display mode press or wait for the time-out.

7.9.6 POEn - ENABLE or DISABLE the operation of a water pump using the key

Operation of a single pump can be disabled for servicing or to disconnect it from the circuit in the event of a malfunction. In the functions menu it is displayed with the label POEn; inside the folder it is displayed as follows: PE1E = evaporator no. 1 pump operating status. The labels which identify the individual pumps are only displayed in the POEn function for the pumps actually present.

Access the function menu key:

• use the or keys to scroll the list and select the "POEn" function

• press the key: the bottom display shows "PE1E" and the top display "En";

• select the pump for disabling by pressing the or keys (labels "PE1E", "PE2E".. present depending on the unit's configuration)

• press the key for 3 seconds: the top display shows a flashing "En". Pressing the or keys alternates the contents of the top display between "En" and "diS"; pressing the key confirms the selected status

(En= enabled, diS=disabled).

Press the key to quit the POEn menu; it will also be shut down after a time-out.

Display status of the DISABLED water pump During normal operation, if one of the pumps is disabled, a flashing label P1Ed, P2Ed, (evapo rator pumps 1 and 2) appears on the bottom display, alternating with the parameter currently displayed.

7.10 uS - Tank heater probe display

The temperature / pressure value of the probes that control the auxiliary outputs can be displayed in the functions menu. FUNCTION uS display of temperature / pressure value; identification label in function uS:

• uSt1 value measured by circuit 1 auxiliary probe

• uSt2 value measured by circuit 2 auxiliary probe

To display the probe values:

• With the or buttons select the uS function and press .

• The lower display will show the label uSt1 (if the auxiliary probe is configured for temperature) or uSP1 (if the auxiliary probe is configured for pressure); the upper display will show the measured temperature / pressure value.

• Use or to display the measured pressure value of auxiliary output 2, if present.

• To return to normal display mode press or wait for the time-out.

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7.11 Alarms

The electronic controller manages the display, reset and logging of a large number of alarms.

7.11.1 Alarms display and reset (ALrM function)

ATTENTION

With this procedure you can reset all the alarms except for the compressor thermal cut-out alarms for which the

password will be required: 14.

To open the functions menu proceed as follows:

• Open the functions menu by pressing

• With the or buttons select the ALrM function

•Press . If no alarms are present, pressing is not enabled.

• The lower display shows the label with the alarm; the upper display, if the alarm displayed is resettable, shows the label rSt or no if the alarm condition is still present.

• Pressing in correspondence with label rSt resets the alarm and the system goes to the next one; if this too is resettable, press to reset it and go to the next one.

• If you want to scroll through all the alarms present press or .

To exit the ALrM function and return to normal display mode press or wait for the time-out. With the unit in StbY (stand-by) and the  LED flashing, press and scroll with or to select the ALrM function and press button to display the active alarm.

7.11.2 How to mute th e buzzer

The controller emits an audible signal to alert the operator to the presence of alarms (buzzer). The buzzer is muted in the following ways:

• Automatic muting: the buzzer is muted when the situation that caused the alarm ceases.

• Manual muting: press and release one of the buttons; the buzzer will be muted even if the alarm condition persists.

7.11.3 General alarms list

Alarm codes and indications are composed of letters and numbers that identify different alarm types. The first letter of the alarm label identifies the type as follows:

•Letter A = unit alarm

•Letter b = circuit alarm

•Letter C = compressor alarm

The following tables contain a description of the alarms managed by the electronic circuit board. Some of the alarms mentioned may not be referable to all unit models.

Outputs block

COD.

alarm

Alarm

Description

Alarm reset

Alarm Trip

Compressor

Pump

Fan

Heaters

AP1 Probe PB1 fault alarm A I X X X(1) AP2 Probe PB2 fault alarm A I X X X(1) AP3 Probe PB3 fault alarm A I X X X(1) AP4 Probe PB4 fault alarm A I X X X(1) AP5 Probe PB5 fault alarm A I X X X(1) AP6 Probe PB6 fault alarm A I X X X(1) APE1 Probe PB1 .. Probe Pb8 of I/O expansion A I X X X APE2 Probe PB1.. Probe Pb8 of I/O expansion A I X X X APE3 Probe PB1 .. Probe Pb8 of I/O expansion A I X X X APE4 Probe PB1 .. Probe Pb8 of I/O expansion A I X X X APE5 Probe PB1 .. Probe Pb8 of I/O expansion A I X X X APE6 Probe PB1 .. Probe Pb8 of I/O expansion A I X X X APE7 Probe PB1 .. Probe Pb8 of I/O expansion A I X X X APE8 Probe PB1.. Probe Pb8 of I/O expansion A I X X X AEFL Level sensor and/or flow meter alarm A/M R X X(2) X X

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1= If probe configured for anti-freeze - water heater control and Ar10 = 0. 2= With manual reset alarm. 3= Compressors stopped with only 1 water pump configured or with 2 water pumps configured and both in thermal alarm state. 4= water heater elements off with only 1 water pump configured or with 2 water pumps configured and both in thermal alarm status (in this case the water heater elements are switched on only by the evaporator anti-freeze protection setpoint). (n)= identifies circuit 1 or circuit 2 Key: A= automatic M= manual R= delayed I= instantaneous

AtE1 Evaporator water pump thermal cutout M I X(3) X X X(4) AtE2 Evaporator second water pump thermal cutout M I X(3) X X X(4) AEE EEprom alarm M I X X X ALSF Phase sequence alarm (NOT USED) A I X X X X ASLA LAN communication with I/O expansion alarm A I X X X ALc1 Phase monitor alarm A/M I X X X AEUn Evaporator inlet high temperature unloading indication A R ACF1 Configuration alarm A I X X X ACF2 Configuration alarm A I X X X ACF3 Configuration alarm A I X X X ACF4 Configuration alarm A I X X X ACF5 Configuration alarm A I X X X ACF6 Configuration alarm A I X X X ACF7 Configuration alarm A I X X X ACF8 Configuration alarm A I X X X ACF9 Configuration alarm A I X X X AC10 Configuration alarm A I X X X AC11 Configuration alarm A I X X X AC12 Configuration alarm A I X X X AC13 Configuration alarm A I X X X AC14 Configuration alarm M I X X X b(n)HP Circuit (n) high pressure switch (TAEevo Tech 015÷40 1 models only) A/M R X X b(n)HP Circuit (n) high pressure switch and/or compressor thermal alarm

(TAEevo Tech 402÷802 models only)

A/M R X X

b(n)LP Circuit (n) low pressure switch A/M R X X b(n)AC Anti-freeze in chiller circuit (n) A/M R X X b(n)Ac Signalling of anti-freeze in chiller circuit (n) A/M R b(n)hP High condensing pressure transducer circuit (n) M I X b(n)lP Low cond ensing pressur e - (evaporatio n with low pressure transducer)

transducer circuit (n)

A/M R X

AEht Evaporator water inlet high temperature alarm M I X X b1tF Circuit 1 fans thermal alarm M I X b(n)Cu Signalling unloading temp. press. condensing circuit (n) A I b(n)rC Circuit (n) recovery disabl ed signalling A I C(n)tr Compressor (n) thermal alarm with AL47 = 0 – 1 M I X

Outputs block

COD.

alarm

Alarm

Description

Alarm reset

Alarm Trip

Compressor

Pump

Fan

Heaters

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7.11.4 Indications table

7.11.5 Probe faulty

7.11.6 High pressure sw itch alarm

(TAEevo Tech 015÷401 models only)

CODE

Alarm

Description

Alarm

Comp.

Heaters

Anti-freeze

water heater

Elements

support

Pump

Evap.

Deliv. Fan

Cond. pump

Cond.

fan

Cir1 Cir2

Auxiliary

relay

AEUn Evaporator unloading indication b(n)Cu Unloading indication from condensing press. temp. circuit (n) b(n)Eu Unloading indication from evaporator low temp. circuit (n) C(n)Mn Compressor (n) maintenance AEP1 Evaporator water pump maintenance AEP2 Second evaporator pump maintenance noL Indication of communication loss between keypad or

controller 2 remote terminals configured with same address

Atr(n) Remote terminal alarm

Display labels meaning AP1 probe PB1÷AP6 alarm probe PB6 alarm

Cause of trip Probe configured and converted value off range Reset Probe not configured or converted value within range Reset Automatic Icon Flashing  Action Alarm relay + buzzer activated

Regulators

In accordance with the particular probe in error status, the regulators associated with the probe in question will be disabled. An error of the temperature control probe will cause a unit shut-down, while an error of the external air temperature probe will result in disabling of the functions associated with the probe in question (e.g. dynamic setpoint)

Display labels meaning b1HP (circuit 1 high pressure digital input)

b2HP (circuit 2 high pressure digital input)

Cause of trip With unit in ON status and circuit high pressure switch input active Reset Input inactive Reset Reset is always manual Icon Flashing  Action Alarm relay + buzzer activated

Regulators

active the fans are forced at the maximum speed for 60 seconds before switching off If Par. FA02= 1 fans operating mode independent from the compressor, with alarm active the fans are forced at the maximum speed for 60 seconds then are

subjected to speed control Compressors of unaffected circuits Follows its control Pump down solenoid of non-condensing

circuits affected

Follows its control

Pump down solenoid of affected circuits off

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7.11.7 High pressure switch alarm and/or compressor thermal alarm

(TAEevo Tech 402÷802 models only)

7.11.8 Low pressure switc h alarm

Display labels meaning b1HP (circuit 1 high pressure digital input) and/or compressor thermal alarm

b2HP (circuit 2 high pressure digital input) and/or compressor thermal alarm

Cause of trip With unit in ON status and circuit high pressure switch input active and/or

compressor thermal alarm Reset Input inactive Reset Reset is always manual Icon Flashing  Action Alarm relay + buzzer activated

Regulators

active the fans are forced at the maximum speed for 60 seconds before

switching off

If Par. FA02= 1 fans operating mode independent from the compressor, with

alarm active the fans are forced at the maximum speed for 60 seconds then are

subjected to speed control Compressors of unaffected circuits Follows its control Pump down solenoid of non-condensing circuits affected

Follows its control

Pump down solenoid of affected circuits off

Display labels meaning b1LP (circuit 1 low pressure digital input)

b2LP (circuit 2 low pressure digital input)

Cause of trip With low pressure switch input of active circuit

The alarm is not signalled:

1. On compressor starting for time AL01

2. If time AL64 from activation of the digital input has not elapsed

Reset Input deactivation Reset Automatic - becomes manual after AL05 trips / hour (reset procedure in

functions menu) Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Inversion valve follows its control Recovery valve follows its control Free cooling ON/OFF valve follows its control Auxiliary relay Follow(s) its/their control No-load start-up valve Follows its control Delivery fan Follows its control Condensing fans Off Support /water heater /anti-freeze Follows its control Evaporator/ condenser water pump(s) Follows its control Compressors off Pump down solenoid off

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7.11.9 High pressure

7.11.10 L ow pressure

Display labels meaning b1hP (circuit 1 high pressur e analogue input)

b2hP (circuit 2 high pressure analogue input)

Cause of trip Condensing control probe detects value > set AL09 Reset Condensing control probe detects value < set AL09 - differential AL10 Res et Reset is always manual Icon Flashing  Action Alarm relay + buzzer activated

Regulators

active the fans are forced at the maximum speed for 60 seconds before

switching off Support /water heater /anti-freeze Follows its control Evaporator/ condenser water pump(s) Follows its control Compressors of affected circuits Off Compressors of unaffected circuits Follows its control Pump down solenoid of unaffected circuits Follows its control Pump down solenoid of affected circuits off

Display labels meaning b1lP (circuit 1 low pressure analogue input)

b2lP (circuit 2 low pressure analogue input)

Cause of trip The alarm is generated when the evaporation pressure alarm reads a pressure

value < set AL03

When the compressor is started the alarm is not generated for time AL01. Reset If the evaporation control probe measures pressure > set AL03 + differential

AL04

Reset Automatic - becomes manual after AL05 trips / hour (reset procedure in

functions menu) Icon Flashing  Action Relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Inversion valve follows its control Recovery valve follows its contr ol Free cooling ON/OFF valve follows its contr ol Auxiliary relay Follow(s) its/their control No-load start-up valve Follows its control Delivery fan Follows its control Condensing fans Off Support /water heater /anti-freeze Follows its control Evaporator/ condenser water pump(s) Follows its control Compressors of affected circuits Off Compressors of unaffected circuits Follows its control Pump down solenoid of unaffected circuits Follows its control Pump down solenoid of affected circuits off

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7.11.11 Anti-freeze alarm

The anti-freeze alarm is reset automatically. It switches to manual reset after 3 trips/hour. With the unit in Stand-by or OFF the anti-freeze alarm message is tripped in reference to the chiller and heat pump setpoints.

7.11.12 Chiller mode anti-freeze alarm

7.11.13 Level sen sor and/or flow meter alarm

Each time the water pump is started the level sensor alarm is disregarded for time AL15 to allow the hydraulic circuit to reach steady state conditions. In normal operating conditions, if the level sensor is in alarm for time AL17 the compressor is stopped and label AEFL is displayed: the water pump continues to run for additional time AL16 after which, if the level sensor is still in alarm, the pump is stopped. At this point the alarm persists with manual reset so it must be reset manually. Parameter AL18 is the time for which the level sensor must not be in alarm in order to allow a reset. AL15 Pump start level sensor alarm delay Used to set a delay for acknowledgement of the level sensor alarm from starting of the water pump to allow the flow rate to reach steady state conditions. AL16 Alarm persistence time to stop the water pump. Defines the level sensor alarm persistence time (digital input active) after which the alarm switches from automatic reset to manual reset and the water pump is stopped. AL17 Level sensor input active duration Used to set a time during which the level sensor alarm must persist before the alarm is signalled. The count starts after time

AL15 and makes it possible to filter out possible flow rate drops or the presence of air pockets in the water circuit. AL18 Level sensor input not active duration

Used to set a time during which the level sensor alarm must remain inactive; after this interval, if the alarm is automatic reset type it is reset, while it can be reset manually if it is manual reset type.

Chiller Operation

Display labels meaning b1AC (chiller mode circuit 1 anti-freeze alarm )

b1Ac (chiller mode circuit 1 anti-freeze alarm indication)

With the alarm active and a dual circuit unit both the labels are displayed (b1AC-b2AC/b1Ac-b2Ac).

Cause of trip In operation and in stand-by remote OFF, if the anti-freeze control probe detects

a temperature < set AL26 for at least AL28 seconds. Reset Anti-freeze control probe detects a temperature > set A26 + differential AL27. Reset Automatic - becomes manual after AL29 trips / hour (reset procedure in

functions menu). Icon Flashing  Action The compressors are stopped and the alarm label is displayed (b1AC b2AC)

and the Alarm relay + buzzer are activated

Regulators

Alarm If AL30=1 Relay + buzzer activated + anti-freeze heaters Inversion valve Follows its control Recovery valve Follows its control Free cooling ON/OFF valve Follows its control Auxiliary relay Follow(s) its/their control No-load start-up valve Follows its control Delivery fan If air-air unit off Condensing fans Follows its control Support /water heater /anti-freeze If air-air unit off, otherwise follows its control Support /water heater /anti-freeze With alarm from ID activated Evaporator/ condenser water pump(s) Follows its control Compressors Off Pump down solenoid Off

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ATTENTION

Activation of alarm relay + buzzer occurs only if the level sensor alarm is active during a normal operating stage.

Otherwise exclusively an illuminated signal is generated (flashing icon).

NOTE

The alarm is always automatic reset with the unit in stand-by or remote OFF (pump stopped).

Level sensor alarm manual reset: If the alarm features manual reset, to reset it the operator must open the functions menu (reset procedure in functions menu).

Display labels meaning AEFL (level sensor and/or flow meter alarm) Cause of trip The alarm is not acknowledged for time AL15 after starting of the water pump.

Alarm signalled if ID active for time AL17. Reset ID not active for time AL18 Reset Automatic - becomes manual if ID active for time AL16 counted at expiry of

AL17 (reset procedure in functions menu) Icon Flashing Flow! Action Alarm relay + buzzer activated only if the level sensor alarm is active during a

normal operating stage.

Regulators

Alarm Relay + buzzer activated only if the level sensor alarm is active during a normal

operating stage. Inversion valve Follows its control Recovery valve Follows its control Free cooling ON/OFF valve Follows its control Anti-freeze / Support / water heater Off Auxiliary relay Follows its control Delivery fan Off Condensing fans Follows its control Support /water heater /anti-freeze Follows its control Evaporator water pump With CO15 = 1 always on; off when alarm switches to manual reset (only in

chiller or heat pump mode) Evaporator water pump With CO15 = 2 follows its control; off when alarm switches to manual reset

(only in chiller or heat pump mode) Condenser water pump Follows its control Compressors Off Pump down solenoid Off

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7.11.14 Compress ors thermal alarm

7.11.15 Fan the rmal alarm

Display labels meaning C1tr (compressor 1 thermal alarm) -…C4tr (compressor 4 thermal alarm) Cause of trip With digital input active.

The alarm is not acknowledged for AL19 after compressor start.

Reset If ID inactive Reset Manual from menu ALrM with password request Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Inversion valve follows its control Recovery valve follows its control Free cooling ON/OFF valve follows its control Auxiliary relay Follows its control No-load start-up valve Follows its control Delivery fan Follows its control Condensing fans Follows its control Support /water heater /anti-freeze Follows its control Evaporator/ condenser water pump(s) Follows its control Compressor affected If Par. AL47 = 0 or 1 Off Compressor unaffected If Par. AL47 = 0 follows its control - If Par. AL47 = 1 Off Pump down solenoid Switched off if only 1 compressor per circuit, otherwise follows its control

Display labels meaning b1tF (circuit 1 condensing fan thermal alarm) Cause of trip With configured circuit digital input active Reset With digital input inactive. Reset Manual. (reset procedure in functions menu) Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Inversion valve follows its control Recovery valve follows its control Free cooling ON/OFF valve follows its control Auxiliary relay follows its control No-load start-up valve follows its control Delivery fan Off Condensing fans Off Support /water heater /anti-freeze Follows its control Evaporator/ condenser water pump(s) Follows its control Compressors Off Pump down solenoid Off

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7.11.16 High condensing pressure unloading indication in chiller mode

7.11.17 Hig h condensing pressure recovery disabling indication

Display labels meaning b1Cu (unloading indicatio n from circuit 1 condenser coil)

b2Cu (unloading indication from circuit 2 condenser coil)

Cause of trip In operation if the probe configured as condensing pressure or temperature

control detects a value > CO44 Reset • if condensing pressure or temperature measures value < CO44 -

differential CO45

• with unloading active, after time setting Par. CO48

Reset Automatic Icon Flashing  Action Alarm relay + buzzer NOT activated

Regulators

Alarm Relay + buzzer NOT activated Inversion valve Follows its control Recovery valve follows its control Free cooling ON/OFF valve follows its control Auxiliary relay follows its control No-load start-up valve follows its control Delivery fan Follows its control Condensing fans Follows its control Support /water heater /anti-freeze Follows its control Evaporator/ condenser water pump(s) Follows its control Compressors Follows its control Pump down solenoid Follows its control

Display labels meaning b1rC (circuit 1 recovery disabling signal)

b2rC (circuit 2 recovery disabling signal)

Cause of trip In o p e r a t i o n i f t he probe configure d as condensing pressure control detects a

value > set rC06 Reset • If condensing pressure or temperature measures value < set rc06

- differential rC07

• From recovery disabling function activated after time set in

Par. rC08

Reset Automatic Icon Flashing  Action Alarm relay + buzzer NOT activated

Regulators

Alarm Relay + buzzer NOT activated Inversion valve Follows its control Recovery valve Off Free cooling ON/OFF valve Follows its control Auxiliary relay Follows its control No-load start-up valve Follows its control Delivery fan Follows its control Condensing fans Follows its control Support /water heater /anti-freeze Follows its control Evaporator/ condenser water pump(s) Follows its control Compressors Follows its control Pump down solenoid Follows its control

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7.11.18 Evaporator inlet high water temperature unloading indication

7.11.19 Evapo rator water pump group thermal alarm

Display labels meaning AEun (unloading from evaporator indication) Cause of trip operation if evaporator water inlet temperature measured is > set CO40 for time

set in Par.CO42

Reset • If the measured water temperature is < set CO40 - differential

CO41

• From unloading function active after time set in Par. CO43

Reset Automatic Action Alarm relay + buzzer NOT activated

Regulators

Alarm Relay + buzzer NOT activated Inversion valve Follows its control Recovery valve follows its control Free cooling ON/OFF valve Follows its control Auxiliary relay Follows its control No-load start-up valve Follows its control Delivery fan Follows its control Condensing fans Follows its control Support /water heater /anti-freeze Follows its control Evaporator/ condenser water pump(s) Follows its control Compressors Follows its control Pump down solenoid Follows its control

Display labels meaning AtE1 (evaporator water pump thermal cutout)

AtE2 (evaporator second pump thermal cutout)

Cause of trip ID configured as evaporator water pump thermal cutout active

ID configured as evaporator second pump thermal cutout active Reset With ID inactive Reset Manual. (reset procedure in functions menu) Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Inversion valve Follows its control Recovery valve follows its control Free cooling ON/OFF valve Follows its control Auxiliary relay Follows its control No-load start-up valve Follows its control Delivery fan Off if no pump available Condensing fans Off if no pump available Support /water heater /anti-freeze Follows its control Condenser / evaporator water pump Off if no pump available Condenser water pump Follows its control Compressors Off if no pump available Pump down solenoid Off if no pump available

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7.11.20 Phase mo nitor alarm

7.11.21 Co mpressors maintenance alarm

7.11.22 Pump s maintenance alarm

7.11.23 EEprom alarm

NOTE

For unit configuration alarms “ACF1÷ACF9” and “AC10÷AC14”, contact technical assistance.

Display labels meaning ALc1

Cause of trip Phase monitor alarm Reset Phase monitor not active alarm Reset automatic - becomes manual after AL42 trips / hour (reset procedure in

functions menu). Recorded in alarms log exclusively with manual reset. Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Other loads Off

Display labels meaning C1Mn (compressor 1 mai ntenance request)

C2Mn (compressor 2 maintenance request)

C3Mn (compressor 3 maintenance request)

C4Mn (compressor 4 maintenance request)

Cause of trip Compressor running hours > programmed hour meter setting Reset Running hours reset (in functions menu, “Hour” function, hold down “set”

button for several seconds) Reset Manual Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Other loads Follow their control

Display labels meaning AEP1 (evaporator water pu mp maintenance request)

AEP2 (evaporator second pump maintenance request)

Cause of trip Pump running hours > programmed hour meter setting Reset Running hours reset (in functions menu, “Hour” function, hold down “set”

button for several seconds) Reset Manual Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Other loads Follow their control

Display labels meaning AEE

Cause of trip Failed write to Eeprom Reset -----Reset Manual Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Other loads Off

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7.11.24 Unit co nfiguration alarm

Display labels meaning ACF1 Unit configured as heat pump and circuit inversion valve not configured

incorrect combination in values of defrost parameter (dF22/23)

ACF2 Unit configured for ON/OFF or proportional condensing control without configuration of the competent probe

(1 probe per circuit if separate condensing, at least 1 probe if single condensing). In case of proportional control at least one of the following rules is not observed:

• FA09 + FA11 + FA12 < FA10

• FA12 < FA13

• FA07 < FA15 < FA08

In case of proportional control at least one of the following rules is not observed:

• FA18 + FA21 + FA20 < FA19

• FA21 < FA22

• FA16 < FA23 < FA17

In case of ON-OFF control the following rule is not observed:

• FA09 < FA10

In case of ON-OFF control with pump enabled the following rule is not observed:

• FA18 < FA19

In case of pump enabled and defrost enabled no condensing / evaporation probe per circuit. In case of fans control with PWM signal continuous supply has been selected (CF83=0). In case of step control enabled if step1 is not < step2 < step3 < step 4 in chiller mode / if step 4 is not < step3 < step2 < step 1 in heat pump mode.

ACF3 Two digital / analogue or relays configured with same function or configured without adeq uate resources

(e.g. compressor 3 thermal cutout configured but compressor 3 not configured).

ACF4 • CF59 = 1 and digital input not configured or CF59 = 2 and no NTC probe configured as

ambient air temperature.

• Unit configured as heat pump only and compressors plant enabled.

• CF03

 0 and no condensing unit operation enabling digital input and loads configured.

• CF03

 0 and all condensing unit operation enabling digital inputs and cooling / heating

demand configured.

• CF03  0 and capacity demands configured in mode that is incongruent with the configuration

of the compressors / capacity steps relay outputs.

ACF5 If circuit 2 is not configured and the resources have not been configured (pump-down relay, heating elements,

cycle inversion valve, condensing fans, recovery, auxiliary).

ACF6 Total number of compressors in the 2 circuits (CF04 + CF05) is:

•> 4

• > 4 and starting is not direct (CO10

 0) or number of capacity steps (CF06) is  0

• > 2 and intermittent valve is enabled with ON times (CO08) and OFF times (CO09)

 0

If pump-down operation is configured but in at least one circuit:

• The circuit pump-down solenoid relay is not configured.

• The pump-down is not performed by time and the pump-down pressure switch and circuit evaporation probe are not configured and pump-down is enabled also in start-up or even the low pressure switch is not configured

The compressor has been configured by means of parameters CF04 and CF05 but the relative relays have not been installed:

•Compressor relay

• Valve intermittent when enabled from capacity control ON / OFF times (CO08 / CO09

 0)

• or gas by-pass when the function is enabled (by-pass time

 0)

• Starting part-winding

• Of capacity control for all capacity steps provided

A relay has been configured:

• Associated with a compressor not enabled by parameters CF04 and CF05

• Valve intermittent when ON or OFF times =0

• Capacity control not envisaged

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ACF7 evaporator pump

• defined (CO16

 0) but no relays configured

• not defined (CO16 = 0) but one relay configured

condenser pump

• defined (CO21

 0) but no relays configured

• not defined (CO21 = 0) but one relay configured

Evaporator / condenser pump configuration alarm due to anti-freeze

•if Ar24=1 and Ar25=0

•if Ar25=1 and there are no probes configured as NTC

•if Ar29=1 and there are no probes configured as NTC

ACF8 Temperature control probes configuration:

• one temperature control probe (in chiller ST09, in heat pump when ST10 is enabled) is not

correctly configured (does not exist or is not NTC)

• controller enabled with pressure control the associated pressure control probe is not defined

ACF9 Recovery enabled but in one circuit only certain resources are defined (the following are necessary:

condensing probe, recovery request digital input, recovery relay) or no output is def ined.

AC10 Compressors with inverter:

• there are at last 2 analogue outputs configured for capacity modulation of the same compressor

• the output is defined but the main relay of the compressor is not defined

• modulating compressor enabled and unit configured as condensing unit

AC11 Capacity controlled compressors

• digital scroll compressors

• at least 1 of the compressors defined has significance 0

• temperature control is not in neutral zone

AC12 (free cooling configuration) if:

• the free cooling output relay is not defined

• the probes for free cooling control are not defined

•if FS21 < FS22

•if FS01=2 and CF97=2

AC13 (domestic hot water configuration) if:

FS01>0 and:

• the out1 output relay is not defined

• domestic hot water temperature probe 1 is not configured

AC14 (relay outputs configuration) if:

a relay is configured with values 75 or 76

Cause of trip Incorrect programming Reset Correct programming Reset Automatic Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Other loads Off

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7.12 iCHILL input/output configurations

7.12.1 Configuration of analog ue inputs PB1 - PB2 – PB5 – PB6

0. Disabled

1. PTC temperature probe on delivery outlet of compressor n° 1

2. PTC temperature probe on delivery outlet of compressor n° 2

3. PTC temperature probe on delivery outlet of compressor n° 3

4. PTC temperature probe on delivery outlet of compressor n° 4

5. Not used

6. Not used

7. PTC temperature probe for solar panel temperature

8. NTC temperature probe on evaporator inlet

9. NTC temperature probe on evaporator outlet 1

10. NTC temperature probe on evaporator outlet 2

11. NTC temperature probe on evaporator common output/support heater management (air/air unit)

12. NTC temperature probe on common input for condenser hot water

13. NTC temperature probe on condenser hot water input of circuit 1

14. NTC temperature probe on condenser hot water input of circuit 2

15. NTC temperature probe on condenser hot water output of circuit 1

16. NTC temperature probe on condenser hot water output of circuit 2

17. NTC temperature probe on common output for condenser hot water

18. NTC temperature probe for free cooling mode

19. NTC temperature probe for external air temperature dynamic set point / boiler function / changeover

20. NTC temperature probe for combined defrost on circuit 1

21. NTC temperature probe for combined defrost on circuit 2

22. NTC temperature probe for auxiliary output on circuit 1

23. NTC temperature probe for auxiliary output on circuit 2

24. NTC temperature probe for domestic hot water temperature 1

25. NTC temperature probe for domestic hot water temperature 2

26. NTC temperature probe for solar panel temperature

27. NTC temperature probe for condensation on circuit 1

28. NTC temperature probe for condensation on circuit 2 If the input is to be used as a digital input, the configuration will be from o1 to C75 and will take on the meaning seen in “Configuration of digital inputs ID1 – ID18”

7.12.2 Configuration of analog ue inputs PB3 - PB4

0. Disabled

1. PTC temperature probe on delivery outlet of compressor n° 1

2. PTC temperature probe on delivery outlet of compressor n° 2

3. PTC temperature probe on delivery outlet of compressor n° 3

4. PTC temperature probe on delivery outlet of compressor n° 4

5. Not used

6. Not used

7. PTC temperature probe for solar panel temperature

8. NTC temperature probe on evaporator inlet

9. NTC temperature probe on evaporator outlet 1

10. NTC temperature probe on evaporator outlet 2

11. NTC temperature probe on evaporator common output/support heater management (air/air unit)

12. NTC temperature probe on common input for condenser hot water

13. NTC temperature probe on condenser hot water input of circuit 1

14. NTC temperature probe on condenser hot water input of circuit 2

15. NTC temperature probe on condenser hot water output of circuit 1

16. NTC temperature probe on condenser hot water output of circuit 2

17. NTC temperature probe on common output for condenser hot water

18. NTC temperature probe for free cooling mode

19. NTC temperature probe for external air temperature dynamic set point / boiler function / changeover

20. NTC temperature probe for combined defrost on circuit 1

21. NTC temperature probe for combined defrost on circuit 2

22. NTC temperature probe for auxiliary output on circuit 1

23. NTC temperature probe for auxiliary output on circuit 2

24. NTC temperature probe for domestic hot water temperature 1

25. NTC temperature probe for domestic hot water temperature 2

26. NTC temperature probe for solar panel temperature

27. Condensation probe on circuit n° 1 (NTC temperature / pressure 4÷20 mA / ratiometric 0÷ 5Volt)

28. Condensation probe on circuit n° 2 (NTC temperature / pressure 4÷20 mA / ratiometric 0÷ 5Volt)

29. Evaporation pressure probe in circuit 1

30. Evaporation pressure probe in circuit 2

31. Auxiliary output pressure probe 1

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32. Auxiliary output pressure probe 2

33. Pressure probe for 4..20 mA dynamic set point

34. Oil pressure probe on compressor 1 or circuit 1

35. Oil pressure probe on compressor 2 or circuit 2 If the input is to be used as a digital input, the configuration will be from o1 to C75 and will take on the meaning seen in “Configuration of digital inputs ID1 – ID18”

7.12.3 Configuration of digital inputs ID1 – ID11

0. Disabled

1. Remote ON / OFF

2. Remote Chiller / heat pump

3. Flow switch / delivery fan thermal cutout

4. Hot side flow switch

5. Antifreeze alarm on circuit 1

6. Antifreeze alarm on circuit 2

7. High pressure switch on circuit 1

8. High pressure switch on circuit 2

9. Low pressure switch on circuit 1

10. Low pressure switch on circuit 2

11. High pressure on compressor 1

12. High pressure on compressor 2

13. High pressure on compressor 3

14. High pressure on compressor 4

15. Not used

16. Not used

17. Thermal cutout on compressor 1

18. Thermal cutout on compressor 2

19. Thermal cutout on compressor 3

20. Thermal cutout on compressor 4

21. Not used

22. Not used

23. Condensation fan thermal cutout on circuit 1

24. Condensation fan thermal cutout on circuit 2

25. Common condensation fan thermal cutout

26. Evaporator water pump 1 thermal cutout

27. Evaporator support water pump thermal cutout

28. Condenser water pump 1 thermal cutout

29. Condenser support water pump thermal cutout

30. Recovery request on circuit 1

31. Recovery request on circuit 2

32. Defrost start/end on circuit 1

33. Defrost start/end on circuit 2

34. Energy Saving

35. Oil pressure switch / float switch on compressor 1

36. Oil pressure switch / float switch on compressor 2

37. Oil pressure switch / float switch on compressor 3

38. Oil pressure switch / float switch on compressor 4

39. Not used

40. Not used

41. Pump down pressure switch on circuit 1

42. Pump down pressure switch on circuit 2

43. Digital input for general unit block alarm 1

44. Digital input for general alarm signal / unit block alarm 2

45. Digital input for automatic RTC enable (time band) / manual mode (keypad)

46. Digital input for operation with delivery fan only

47. Digital input for temperature control request

48. Digital input for chiller request

49. Digital input for heat pump request

50. Digital input for power step 2 request

51. Digital input for power step 3 request

52. Digital input for power step 4 request

53. Digital input for power step 5 request

54. Digital input for power step 6 request

55. Digital input for power step 7 request

56. Digital input for power step 8 request

57. Digital input for power step 9 request

58. Digital input for power step 10 request

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59. Digital input for power step 11 request

60. Digital input for power step 12 request

61. Digital input for power step 13 request

62. Digital input for power step 14 request

63. Digital input for power step 15 request

64. Digital input for power step 16 request

65. Domestic hot water pump flow switch

66. Solar panel water pump flow switch

67. Enable only domestic hot water production

68. Domestic hot water heater thermal cutout

69. Domestic hot water pump thermal cutout

70. Enable second domestic water set point

71. Phase sequence alarm

72. Domestic water operation priority

73. FC pump flow switch

74. Expansion valve alarm on circuit 1

75. Expansion valve alarm on circuit 2

7.12.4 Configuration of digital ou tputs RL1- RL8

0. Disabled

1. Alarm

2. Evaporator water pump / delivery fan

3. Evaporator support water pump

4. Anti-freeze resistance / support / boiler circuit 1

5. Anti-freeze resistance / support / boiler circuit 2

6. Recovery condenser water pump

7. Recovery condenser support water pump

8. Chiller / heat pump inversion valve on circuit 1

9. Chiller / heat pump inversion valve on circuit 2

10. 1st ON/OFF condensation ventilation step on circuit 1

11. 2nd ON/OFF condensation ventilation step on circuit 1

12. 3rd ON/OFF condensation ventilation step on circuit 1

13. 4th ON/OFF condensation ventilation step on circuit 1

14. 1st ON/OFF condensation ventilation step on circuit 2

15. 2nd ON/OFF condensation ventilation step on circuit 2

16. 3rd ON/OFF condensation ventilation step on circuit 2

17. 4th ON/OFF condensation ventilation step on circuit 2

18. Pump-down solenoid on circuit 1

19. Pump-down solenoid on circuit 2

20. Recovery valve on circuit 1

21. Recovery valve on circuit 2

22. Free cooling ON/OFF valve

23. Auxiliary output 1

24. Auxiliary output 2

25. Screw compressor intermittent valve on compressor 1

26. Screw compressor intermittent valve on compressor 2

27. Liquid injection solenoid valve on compressor 1

28. Liquid injection solenoid valve on compressor 2

29. Valve 1 for domestic hot water production

30. Valve 2 for domestic hot water production

31. Resistances (1st step) for domestic hot water production

32. Resistances (2nd step) for domestic hot water production

33. Resistances (3rd step) for domestic hot water production

34. Solar panel pump

35. ON/OFF valve to enable/disable solar panel coil

36. Domestic hot water pump

37. Hybrid exchanger 1 on circuit 1

38. Hybrid exchanger 2 on circuit 1

39. Hybrid exchanger 1 on circuit 2

40. Hybrid exchanger 2 on circuit 2

41. Summer/Winter operating mode on circuit 1

42. Summer/Winter operating mode on circuit 2

43. Defrost status on circuit 1

44. Defrost status on circuit 2

45. Circuit 1 in regulation status

46. Circuit 2 in regulation status

47. Domestic water production status

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48. Remote standby/off machine status

49. Water side solenoid valve on circuit 1

50. Water side solenoid valve on circuit 2

51. Direct start-up: compressor 1 relay PW start-up: winding 1 relay on compressor 1

52. PW start-up: winding 2 relay on compressor 1

53. Step capacity control 1 on compressor 1

54. Step capacity control 2 on compressor 1

55. Step capacity control 3 on compressor 1

56. Gas bypass valve on start-up of compressor 1

57. Direct start-up: compressor 2 relay PW start-up: winding 1 relay on compressor 2

58. PW start-up: winding 2 relay on compressor 2

59. Step capacity control 1 on compressor 2

60. Step capacity control 2 on compressor 2

61. Step capacity control 3 on compressor 2

62. Gas bypass valve on start-up of compressor 2

63. Direct start-up: compressor 3 relay PW start-up: winding 1 relay on compressor 3

64. PW start-up: winding 2 relay on compressor 3

65. Step capacity control 1 on compressor 3

66. Step capacity control 2 on compressor 3

67. Step capacity control 3 on compressor 3

68. Gas bypass valve on start-up of compressor 3

69. Direct start-up: compressor 4 relay PW start-up: winding 1 relay on compressor 4

70. PW start-up: winding 2 relay on compressor 4

71. Step capacity control 1 on compressor 4

72. Step capacity control 2 on compressor 4

73. Step capacity control 3 on compressor 4

74. Gas bypass valve on start-up of compressor 4

75. Laser function valve

7.12.5 Configuration of proportional outputs OUT1 and OUT2 (0 – 10 VOLT)

0. Output disabled

1. 0-10V output for evaporator pump in modulating mode

2. 0-10V free cooling modulating output

3. Laser function output

4. 0-10V auxiliary output 1

5. 0-10V auxiliary output 2

6. 0-10V output inverter compressor on circuit 1

7. 0-10V output inverter compressor on circuit 2

8. 0-10V output condensation fans on circuit 1

9. 0-10V output condensation fans on circuit 2 ON/OFF output, relay pilot, to enable configuration of a proportional output with the same characteristics as a digital output. The displayed values range from o1 to c50, as per the digital outputs.

7.12.6 Configuration of proportional outputs OUT3 and OUT4 (0 – 10 VOLT/PWM)

0. 10 Output disabled

1. 0-10V output for evaporator pump in modulating mode

2. 0-10V free cooling modulating output

3. Laser function output

4. 0-10V auxiliary output 1

5. 0-10V auxiliary output 2

6. 0-10V output inverter compressor on circuit 1

7. 0-10V output inverter compressor on circuit 2

8. 0-10V output condensation fans on circuit 1

9. 0-10V output condensation fans on circuit 2

10. PWM output condensation fans on circuit 1

11. PWM output condensation fans on circuit 2 ON / OFF output, relay pilot, to enable configuration of a proportional output with the same characteristics as a digital output. The displayed values range from o1 to c50, as per the digital outputs.

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7.12.7 Display in programming mode of polarity of digital inputs / ou tputs

The parameters enable the configuration of:

1. Digital inputs

2. Digital outputs (relays)

3. Proportional outputs configured as ON/OFF outputs

4. Analogue inputs configured as digital inputs

to enable assignment of a function and control of polarity. Example of display in programming mode: The lower display shows the parameter label (CF37) for configuration of the digital input ID8. The upper display shows label “c” or “o” and the relative configuration number.

7.12.8 Remote terminal alarm

7.12.9 Remote terminal alarm

7.12.10 Alarm re lay / open - collector / buzzer notes

The unit features a general alarm relay that combines all alarms on a single output contact. The relay is active with the following logic:

In the example, digital input ID8 is configured as a high pressure switch on circuit 1, label “o”, active with contact OPEN.

In the example, digital input ID8 is configured as a high pressure switch on circuit 1, label “c”, active with contact CLOSED.

Display labels meaning noL (no l ink signalling) Cause of trip Incorrect connection between remote terminal and controller or two remote

terminals configured as present and both with same HW address (see position of

keypads address assignment switch) Reset Correct connection - two different HW addresses Reset Automatic Icon Flashing  Action Alarm relay + buzzer activated

Regulators

Alarm Relay + buzzer activated Other loads Follow their control

Display labels meaning Atr1 / Atr2 Cause of trip Remote terminal configured from parameter but not electrically connected Reset Correct connection - remote terminal declared absent from parameter Reset Automatic Icon Flashing  Action Alarm relay + buzzer activated

ON With alarms not terminated;

With alarms not reset;

OFF With no alarms;

Unit power disconnected



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7.12.11 Dia gnostic of alarms that switch from automatic to manual

No. of trips per hour Every hour is divided into 16 intervals each lasting 3600 / 16 = 225 seconds (3 minutes 45 seconds).

When the instrument is powered on each observation interval is flagged as “inactive”. Each observation interval is initially flagged as “inactive” and subsequently, up to its termination (i.e. for 225 seconds) it is flagged as “active” if at least one alarm trips. When each observation terminates the next one starts, remembering that the observation is continuous and once the first 16 intervals have elapsed the 17th interval replaces the first, the 18th replaces the second, and so forth. In this manner the last hour of operation is always monitored and the “active” intervals can be counted. When the number of active intervals exceeds the set limit, the alarm switches to manual. Setting the limit to 0 the alarm will therefore be manual already at the first trip, while if the limit is set at 16 the alarm will remain constantly automatic because the observation intervals are not 17 in number.

7.12.12 Display and delete the alarms log in the memory (ALOG function)

The function to display the alarm codes is active only if alarms are actually present.

• Enter the functions menu by pressing .

• Select the ALOG function.

•Press . If no alarms are present, pressing is not enabled.

• The lower display shows the label with the alarm code, while the upper display shows the label “n” with a sequential number from 00 to 99.

• Scroll through all the alarms present press or .

To exit the ALOG function and return to normal display mode press or wait for the time-out. The memory has space for 99 alarms. Each alarm stored beyond this number will automatically overwrite the oldest alarm (the alarms are displayed in ascending order from the oldest to the most recent).

• To clear the alarms log enter the functions menu.

• With the or buttons select the function ALOG on the lower display and press .

• Scroll the alarm labels until finding ArSt in the lower display. The upper display shows PASS.

• Press . Enter the deletion password (the password value to reset the alarms log is 14) and press to confirm.

• If the password is correct, the label ArSt flashes for 5 seconds to confirm the deletion. After deleting the alarms log the system exits the functions menu automatically and returns to normal display mode.

• If the password is incorrect the message PASS appears again. If the correct password is not entered it is anyway possible to scroll through the alarms in the memory with or .

To return to normal display mode press or wait for the time-out.

7.13 Programming from keypad

The parameters of the electronic controller are divided into groups subdivided into three levels, namely:

1. USER (Pr1);

2. SERVICE (Pr2).

3. MANUFACTURER (Pr3).

The USER level (Pr1) provides access exclusively to the user parameters, the SERVICE (Pr2) / MANUFACTURER level (Pr3) provides access to parameters concerning unit configuration. The association of a given parameter with a given level is established in the design stage.

ATTENTION

All levels are password protected.

The USER password is 23. The SERVICE password is 32.

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The parameter families, identified by “Labels”, are divided as follows:

ATTENTION

Configurati on parameters “CF” are editable only with the unit in Stand-by.

7.13.1 Access to parameters

To enter the parameters menu “Pr1” (user level):

1. Press + for 3 seconds. The upper display shows the label “PASS”, the lower display shows the label “Pr1”.

2. Press , the upper display shows flashing “0”.

3. To enter the password use or .

4. If the password entered is incorrect, you will be prompted to enter it again. If the password is correct press to display the parameters. The upper part of the display shows the first label “ALL”.

5. To select the labels press or and then press . The lower display shows the label and the code of the first parameter it contains; the upper display shows the associated value.

To enter the parameters menu “Pr2” (service level):

1. Enter “Pr1”, press for 2 seconds; the lower display shows the label “Pr2”. Repeat the procedure from point 2.

To enter the parameters menu “Pr3” (manufacturer level):

1. Enter “Pr2”, press for 2 seconds; the lower display shows the label “Pr3”. Repeat the procedure from point 2.

ATTENTION

Certain parameters may be read-only. If a parameter is read-only LEDs 1 and 2 will f lash.

To exit programming mode and return to normal display mode press + simultaneousl y.

LABEL ACTION

ALL Displays all parameters

ST Displays Thermoregulation parameters only

dP Displays Display Presentation parameters only CF Displays Configuration parameters only SD Displays dynamic setpoint parameters only

Displays energy saving and starting parameters only (FUNCTION NOT ACTIVE) Displays second setpoint parameters only

CO Displays Compressor parameters only

US Displays auxiliary output parameters only FA Displays Fan parameters only

Ar Displays anti-freeze heater parameters only DF Displays defrost parameters only

rC Displays Recovery parameters only AL Displays Alarm parameters only

Pr Password

LED 4 LED 1 LED 2 LED 3

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7.13.2 How to change a parameter value

• Enter programming mode;

• Press + simultaneously for 3 seconds

• Select the desired parameter.

• To change the value press .

• Change the value with or .

• Press to store the new value and to go to the code of the next parameter.

To exit, press + when a parameter is displayed, or wait 240 seconds without pressing any b uttons.

NOTE

The new value you have entered is saved also when you exit the parameter setting function by waiting for it to time out automatically without pressing .

7.14 Use of the hot-key (function UPL)

7.14.1 Programming the board with th e hot-key

With instrument off:

• Insert the key.

• Switch on the instrument.

• Data download now starts from the key to the instrument.

During this stage adjustments are blocked and the lower display shows flashing message “doL”. At the end of the procedure one of two messages will be shown on the upper display:

•“End” if programming was successful (control starts after 30 seconds).

•“Err” if programming failed.

In the event of an error the instrument must be switched off and switched on again to repeat the operation or start with normal control (in this case the key must be unplugged when the instrument is off).

7.14.2 Hot-key programming

ATTENTION

Important: the hot-key saves the instrument parameters but it does not program them.

With unit switched on:

• Insert the key.

• Enter the functions menu

• Select the function UPL on the lower display

Press to start data download from instrument to key. During this stage the lower display shows flashing message “UPL”. At the end of the procedure one of two messages will be shown on the upper display:

•“End” If programming was successful

•“Err” if programming failed.

To exit the UPL function press or wait for the time-out (15 sec) to elapse

7.15 Unit adjustment and control

7.15.1 Compresso rs control

The electronic controller manages compressor start and stops, observing the minimum run times. The following section describes the two methods of control and rotation.

7.15.2 Choice of compress ors control type

The controller features the facility to choose between two temperature control types:

• Proportional

• Neutral Zone (factory setting)

7.15.3 Proportio nal control

For chillers, proportional control uses the setpoint temperature value as a reference and a deviation value called the differential. When the measured temperature increases the system progressively starts the compressors. When the temperature falls below the differential the compressors are progressively stopped.

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7.15.4 Compressors proport ional control diagram

Compressors regulation operation diagam in chiller mode.

7.15.5 Neutral zone control ( factory setting)

In chiller mode, if the reference temperature is > Setpoint+Differential, the unit’s compressors are started in sequence in accordance with the starting time lag outside the neutral zone. In contrast, if the reference temperature is <

Setpoint, the unit’s compressors are stopped in sequence in accordance with the stopping time lag outside the neutral zone. Moreover, to guarantee arrival at the temperature setpoint and rotation of the compressors, if the reference temperature is within the neutral zone, the unit’s compressors are started in sequence, respecting the starting time lag in neutral zone (CO53). Still within the neutral zone, after a programmable time interval (CO54) the controller stops one compressor and, observing the programmed rotation, starts another. Actions in the neutral zone are performed only if at least one of the unit’s compressors is already running. Compressors regulator operation diagram in chiller mode:

7.15.6 Compressors rotatio n

For correct operation in the compressors time the electronic controller manages rotation of compressor starts with different logic, selectable by means of a parameter. The possible choices are:

• Fixed sequence: the first compressor to start is always the last one to stop.

• Rotation by hours: the compressor that will be started is the one with the lowest number of running hours,

while the first to be stopped will be the one, among the running compressors, with the highest number of running hours.

• Rotation by starts (factory setting): the compressor that will be sta rted is the one, among those available,

with the lowest number of starts, while the first to be stopped will be the one, among the running compressors, with the highest number of starts.

In two-circuit units it is also possible to choose whether to favour saturation or balancing of the compressors in each circuit.

7.15.7 Forced compre ssors rotation

For units that frequently operate at partial loads, the controller provides the facility to perform forced compressor rotations. For circuits with more than one compressor although only one of which running, after programmable time (CO72) the compressor is stopped and starting of the available compressor is forced.

Step

4th Step

3rd Step

2nd Step

1st Step

OFF

St07

T em perature

St01

Decrease

Cooling capacity

Zone

Neutral

Increase

Cooling capacity

Set

Set+Diff

Temperature

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7.15.8 Compressors s tarting time limitation

If there are several compressors in a circuit but only one is running, after programmable running time (CO52) the compressor is stopped and another compressor is started (the first free compressor in accordance with the running hours or number of starts).

7.16 Unloading function

This function makes it possible to reduce cooling capacity of the unit when required; it may affect the entire unit or a single circuit and it is achieved by stopping one or more compressors. The unloading types are as follows:

• Unloading due to high temperature: having defined an unloading set and differential, if the temperature

measured by the probe remains above the set for an activation time, in each circuit one compressor is stopped. If the temperature of the probe becomes lower than or equal to an unloading set less the differential, or if the associated maximum duration has elapsed, the unloading function is deactivated and the compressors are restarted.

• Unloading due to high pressure (if high pressure transducer is present): having defined a set, a differential

and an unloading time, if the condensing pressure measured in a circuit is greater than or equal to the set the unloading function is activated in the circuit and then a compressor is stopped in only the circuit involved. The unloading function is deactivated only if the condensing pressure decreases and remains below the unloading set for a preset time or if it falls below set - diff.

7.17 Fans control

On TAEevo Tech units the fans can be controlled in the following ways:

• ON/OFF

•by steps

The selection is made on the basis of the unit configuration.

7.17.1 Units configured w ith “STEP” fans

(only models TAEevo Tech 402÷802)

These units are equipped with a pressure transducer located on the refrigerant compressor discharge pipeline. On the basis of the pressure read by the transducer, the electronic controller manages operation of the fans according to ONOFF logic, i.e. supplying or disconnecting power to the fans.

7.17.2 Fan con trol diagrams

The following diagram illustrates the fans STEP control logic in accordance changes in condensing pressure. STEP diagram (models TAEevo Tech 402÷802 only):

7.18 Hydraulic unit

The circulator pump is only installed on request; in general terms the following configurations are possible:

• Without pump

• Single pump

When the unit is powered on the pump (if installed) starts and continues to run until the unit is set to OFF.

NOTE

With configuration “without pump” there is a provision for an external pump.

7.19 Anti-freeze pump management (if ambient probe is installed)

The pumps installed in the unit can be started in anti-freeze mode to prevent the formation of ice in the unit’s hydraulic circuit. If the unit is powered off and the selected reference temperature is below the programmed setpoint, one of the pumps

BHP

OFF

FA11

Chiller

FA11

1st Step

FA09

2nd Step

FA10

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is started. The pump is stopped if the temperature increases above the setpoint + differential, in accordance with the following diagram:

7.20 ModBus

The supervision system provides the facility to monitor and act on certain of the unit’s parameters by means of a remote device using the RS485 port. The MODBUS communication mode for the controller features the following characteristics: Baud Rate = 9600 bps Data Bit = 8 bit Parity = None Stop Bit = 1 Start/stop= 4milliseconds of silence (approximately 3 characters) Minimum time-out = 500 ms For further information refer to the specific manual.

7.21 Automatic restart

In case of a power loss, when power is restored the unit will be ON if it was ON at the time of power loss, and OFF if it was OFF.

7.22 Control with LCD graphic display

NOTE

To convert the semi-graphic LCD display on the door of the electrical panel (mod. TAEevo Tech 381÷802) to remote control, the relevant remote control kit must be ordered.

In the main visualization it is possible to read:

• status of the unit: cooling, heating, remote OFF or STD-BY

• 4 probes value; it is possible to manage 4 lines to visualize the probe temperature / pressure (parameters dP06..dP09)

LCD graphic display TAEevo Tech 381÷802

Pump status

OFF

Ar27

Pb5 (BAT)

Ar26

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• load / function status as showed below:

7.23 Function of buttons

Meaning of the keys:

NOTE

In case of alarm the pressure of any key silences the alarm.

7.24 Probes visualization

7.25 Unit start/stop

Compressor/s (blinking during the start up delay)

Economy function or Energy Saving

Water pump / Supply fan Unloading function

Condenser fan or Condensing valves

Economy or ON/OFF by timetable (Function not available)

Electric heater Defrost (Function not available)

Sanitary water (Function not available)

Alarm

Allows to read the value of the probes configured in the Ichill

Allows to read/modify the set point

Allows to switch on the Ichill in cooling mode

Allows to read the alarms

Allows to switch on the Ichill in heating or cooling mode (Function not available)

Allows to enter the SERVICE menù

Allows to put the Ichill in STDBY (active when the machine is in cooling mode)

Allows to read the main information of the circuits (compressor status, water pump status, pressure probe value,…)

Mask Description

Press key to visualize the value of the probes configured in the control (press or to visualize all the probes).

Mask Description

The unit can be switched on and off as follows:

• From the keypad

• From a digital input configured as remote ON/OFF

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NOTE

In case of a power loss, when pow er is restored the unit will be ON if it was ON at the time of power loss, and OFF if it was OFF.

7.25.1 Start from the ke ypad

From unit OFF (stand-by) press and release button to switch the unit on or off in chiller mode. With the unit ON the controller shows unit ON on the display.

Stand-by mode is set each time the unit is switched off from chiller operating mode. Also in stand-by the controller makes it possible to:

• Display the measured values.

• Manage the alarm situation by displaying and signalling active alarms.

7.25.2 Start-up from a d igital input

The unit can be switched on/off from a digital input configured as remote On/OFF. The power-off command (local or remote) always assumes priority with respect to the power-on command. If the unit is powered-off with a local command it must be powered back on with a local command. When the unit is in OFF status from a digital input the controller shows unit OFF on the display. For details concerning the connection, refer to the electrical diagram.

7.26 Visualization / modification of the set point

7.27 Alarm visualization

NOTE

In case of alarm the pressure of any key silences the alarm.

Mask Description

Press key to read the value of the set point . It is also possible to read the status of the Energy saving, the status of the

Dynamic set point and the real value of the set point if the Energy saving or Dinamic set point are active. To modify the set point (Cooling):

• press or to select the value of the set point

• press

• press or to modify the value

• press .to confirm the operation

Mask Description

Press key to read the alarm status; the alarm status can be:

• Active: the alarm is still active and it is not possible to reset it

• Reset: the alarm is not active and it is possible to reset it.

Manual reset procedure:

• press or to select the alarm;

• press to reset the alarm

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7.28 Menu service visualization

Pressing it is possible to read the following information:

7.29 Parameters programming

Mask

Parameter programming

Programming clock Energy saving and ON/OFF scheduling (Function not available)

Compressor maintenance

It is possible to disable the compressor for maintenance, read the working hours and number of start up (and reset them)

I/O status

Water pump maintenance

It is possible to read / reset the working hours

Screw compressor information (Function not available)

Circuit maintenance Auxiliary output status

Visualization and reset of the alarms

Sanitary water status, sanitary water temperature, antilegionella status, etc. (Function not available)

Visualization and reset of the alarm log

Free cooling and Solar panel visualization (Function not available)

Defrost status (Function not available) Upload e Download mappa parametri con Hot Key

Electrical heater

Visograph configuration

It is possible to change the language, to set the contrast and the backlight.

Mask Description

Pressing it is possible to read/modify the parameters value:

• select the level 1 (default) or level 2 or level (by pressing Pr2 or Pr3 key)

• press

• press or to enter the password

• press to confirm.

• the display shows "Password OK!" (otherwise repeat the procedure)

• press to visualize the parameters.

If the value of the password is incorrect, the display will remain in setting passwords and will be replayed the steps listed above.

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7.30 Compressor maintenance

Pressing it is possible to visualize the compressor working hour and the number of activations. It is also possible to disable the compressor for maintenance.

Pressing in correspondence of the circuit 1 or circuit 2 allows access to the compressors of the circuit.

7.31 Water pump maintenance

Mask Description

Pressing or it is possible to select the group of parameters to modify, then press .

How to modify the value of the parameter:

• press or to select the parameter to modify

• press

• press or to modify the value

• press to confirm.

Press or to scroll the parameters.

Mask Description

How to reset the working hours and number of start up:

• press or to select the label RST;

• press for 5 seconds to reset hour and start up.

How to disable a compressor:

• press or to select the status of the compressor (Enabled in the "Status" column);

• press for 5 seconds

• press or to select the status "Disabled"

• press for 5 seconds to confirm the operation.

Mask Description

How to reset the working hours:

• press or to select the label RST;

• press for 5 seconds to reset hour and start up.

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7.32 Circuit maintenance

Press to disable the circuit for maintenance; all the compressor will be switched off after disabling the circuit.

7.33 Alarm visualization and reset

Pressing or it is possible to visualize the alarms; the alarm status can be:

• Active: the alarm is still active and it is not possible to reset it

• Reset: the alarm is not active and it is possible to reset it

ATTENTION

With this procedure you can reset all the alarms except for the compressor thermal cut-out alarms for which the

password will be required: 14.

Mask Description

How to disable a circuit:

• press or to select the circuit to disable

• press for 5 seconds

• press or to select the status "Disabled"

• press for 5 seconds to confirm the operation

Mask Description

Manual reset of all alarms: press to reset all the alarms (only the alarms that are not active)

Manual reset procedure:

• press or to select the alarm;

• press to reset the alarm.

In case of compressor overload alarm when the password is requested, operate in this way:

• press or to select the compressor overload alarm

• press

• press or to insert the password value

• press to confirm the operation

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7.34 Alarm log visualization

7.35 Electric heater visualization

7.36 I/O status

Display of temperatures and pressures measured by the probes configured.

Mask Description

Pressing or it is possible to read all stored alarms.

Mask Description

It is possible to read the status of the electrical heaters.

Mask Description

Press or to select the digital input, probes value, analog output, digital input or relays, then press .

• Probe of the control • Probes Ex pansion I/O (if con figured)

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Viewing the status of the digital inputs

Viewing the status of the relays:

7.37 Auxiliary output visualization

• Probes Expansion I/O (if configured)

• Probes of the electronic expansion valve (if configured)

• Display of values / state of the analog outputs

• Digital inputs of the control • I nputs of digital I/O extension (if configured)

• Relays of the control • Relay I/O extension (if configured)

Mask Description

Press or to select the auxiliary relay or analog output and press to read the information (probe value, status of the

output).

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7.38 Parameters programming with Hot Key

Mask Description

To view / modify the set point of operation of the analog outputs:

• press or to select the set point

• press

• press o to modify the value

• press to confirm the operation

Mask Description

It is possible to use the HotKey 64 for:

• copy the parameter map from the HotKey 64 to the control (Download)

• copy the parameter map from the control to HotKey 64 (Upload)

Download from HotKey 64 to control:

this operation is enabled only if the control is in STD-BY or remote OFF, otherwise the display shows the message "Download enabled only in stand-by". Download procedure:

• Insert the Hot Key 64 into the 5 ways connector through the hole at the top of the control (see image below)

• Select "Download from HotKey to device"

• Press ENTER

• if the operation was successful the display shows "OK", otherwise shows "ERR"

Upload from Ichill to Hot Key 64:

Upload procedure:

• Insert the Hot Key 64 into the 5 ways connector through the hole at the top of the control (see image below)

• Select "Upload from device to HotKey"

• Press ENTER

• if the operation was successful the display shows "OK", otherwise shows "ERR"

In case of Upload / Download failure:

• Hot Key 64 not properly inserted in the 5 ways connector

• Hot Key model different to Hot Key 64

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7.39 Keyboard configuration

7.40 Circuit Information

Press to read the main information about the circuit of the compressor status, unloading status, evaporating condensing probes, water pump, condenser fan/valve status

Load status visualization:

Press or to select the information to read then press .

Circuits status

Mask Description

It is possible to set:

• contrast and backlight (it is strongly recommended to reduce as possible the activation time of the backlight)

• language selection

• Ichill firmware release (to verify the compatibility control

 Visograph keyboard)

• Visograph keyboard firmware release / Visograph keyboard bin release.

How to modify the configuration:

• press or to select the configuration to change

• press

• press or to change the configuration

• press to confirm.

Compressor OFF Compressor ON

Condenser fan OFF (step regulation)

(Function not available)

Condenser fan ON (step regulation) (Function not available)

Condenser fan OFF (proportional regulation) or condensation valve OFF

Condenser fan ON (proportional regulation) or condensation valve OFF

Water pump OFF Water pump ON

Supply fan OFF (Function not available) Supply fan ON (Function not available)

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Compressors status

• Compressors of ON/OFF type • Inverter compressors (not available)

Unloading status Evaporating and condensing probe reading

Condensator pump status Evaporator pump status

• Fans with speed control valves or condensation

Condenser fan status

ON/OFF fan

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7.41 Parameters description-settings

The following is a list of all the programmable parameters complete with their associated access levels.

U= User level S= Service level C= Manufacturer level

ATTENTION

Ensure these instructions are observed in full to avoid incorrect operation of the unit.

7.41.1 Description of paramete rs

Parameter Level Description Min. Max. UM Resolution

Thermoregulator

ST01 U Chiller setpoint.

Enables setting of the working setpoint in chiller mode.

ST02 ST03 °C

°F

Dec Int

ST02 U Chiller minimum set.

Establishes the minimum limit that can be utilised to set the chiller working setpoint.

-50.0

-58

ST01 °C

°F

Dec Int

ST03 C Chiller maximum set.

Establishes the maximum limit that can be utilised to set the chiller working setpoint.

ST01 110.0

230°C°F

Dec Int

ST04 C Heat pump setpoint.

Enables setting of the working setpoint in heat pump mode.

ST05 ST06 °C

°F

Dec Int

ST05 C Heat pump minimum set.

Establishes the minimum limit that can be utilised to set the heat pump working setpoint.

-50.0

-58

ST04 °C

°F

Dec Int

ST06 C Heat pump maximum set.

Establishes the maximum limit that can be utilised to set the heat pump working setpoint.

ST04 110.0

230°C°F

Dec Int

ST07 U Control steps activation band in chiller mode. 0.1025.045°C

°F

Dec Int

ST08 C Control steps activation band in heat pump mode. 0.1025.045°C

°F

Dec Int

ST09 C Defines the probe for temperature control of the unit in chiller

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ST10 C Defines the probe for temperature control of the unit in heat pump

mode: 0= Evaporator inlet NTC temperature probe 1= Evaporator outlet NTC temperature probe no. 1 2= Evaporator outlet NTC temperature probe no. 2 3= Common evaporator outlet NTC temperature probe 4= Remote terminal temperature probe no. 1 5= Remote terminal temperature probe no. 2 6= Common condenser water inlet NTC temperature probe 7= Circuit n° 1 condenser water inlet NTC temperature probe 8= Circuit n° 2 condenser water inlet NTC temperature probe 9= Circuit n° 1 condenser water outlet NTC temperature probe 10= Circuit n° 2 condenser water outlet NTC temperature probe 11= Common condenser water outlet NTC temperature probe

ATTENTION

If the same temperature control is required both in chiller

mode and in heat pump mode, set the same value in parameters ST09 and ST10.

011

ST11 S Defines the temperature control type:

0= Proportional 1= Neutral zone

Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Display message

dP01 S Upper display default presentation.

0= No visualization 1= Temperature probe of the evaporator water inlet (EIn label) 3= Temperature probe of the common evaporator water outlet (EOut label)

016

dP02 S Lower display default presentation.

0= No visualization 1= Temperature probe of the evaporator water inlet (Label EIn) 3= Temperature probe of the common evaporator water outlet (EOut label)

020

Forced display message

dP03 C Lower / upper display default presentation:

0= Configurable presentation 1= Upper display evaporator IN / lower display evaporator OUT 2= Upper display condenser IN / lower display condenser OUT 3= Upper display condensing temperature / pressure / lower display evaporation pressure.

Remote terminals display forced presentation

dP04 C Remote terminal no.1 upper display default presentation:

0= The display mode depends on the value of parameters dP01 dP02 - dP03

1= The upper display shows the temperature measured by the NTC probe on board remote terminal no.1

dP05 C Remote terminal no.2 upper display default presentation:

0= The display mode depends on the value of parameters dP01 dP02 - dP03 1= The upper display shows the temperature measured by the NTC probe on board remote terminal no.2

dP06 S Visograph: first displayed probe selection 0 35 dP07 S Visograph: second displayed probe selection 0 35 dP08 S Visograph: third displayed probe selection 0 35 dP09 S Visograph: fourth displayed probe selection 0 35

Parameter Level Description Min. Max. UM Resolution

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Display presentation in STD-BY

dP10 S Ichill display presentation in STD-BY:

0= Shows label “STD-BY” 1= Shows parameters defined by par. dP1 and dP2 2= Shows label “OFF”

Pr1 U User password 0 999 Pr2 S Service passwo rd 0 999 Pr3 C Manufacturer password 0 999

Unit

CF01 C Defines the type of unit to control:

0= Air / air chiller 1= Air / water chiller 2= Water / water chiller

CF02 C Unit operation selection:

1= Chiller only 2= Heat pump only 3= Chiller with heat pump

CF03 C Condensing units:

0= No 1= Yes

Compressors

CF04 C Number of compressors present in ci rcuit no. 1:

1= 1 compressor 2= 2 compressors 3= 3 compressors 4= 4 compressors

CF05 C Number of compressors present in ci rcuit no. 2:

0= None 1= 1 compressor 2= 2 compressors 3= 3 compressors

CF06 C Number of capacity steps per compressor:

0= None 1= 1 step 2= 2 steps 3= 3 steps

Analogue inputs

CF07 C Operation in temperature or pressure fro m analogue input:

0= Operation in temperature / pressure NTC - 4...20 mA:

The condensing temperature is controlled via an NTC probe while a transducer with 4..20mA output must be used for the evaporation pressure control of circuits 1 and 2 and the pressure probe configured as auxiliary output 1 and 2. 1= Operation in pressure with 4...20 mA input: A transducer with 4..20mA output must be used to control the condensing or evaporation pressures 2= Operation in temperature / pressure NTC - 0...5V: The condensing temperature is controlled via an NTC probe while a ratiometric transducer with 0..5V input must be used for the evaporation pressure control of circuits 1 and 2 and the pressure probe configured as auxiliary output 1 and 2. 3= Operation in pressure with 0...5V input: A ratiometric transducer with 0..5V input must be used to control the condensing or evaporation pressures.

CF08 C PB1 configuration

If configured as a digital input.

0 o 128c75

CF09 C PB2 configuration

If configured as a digital input.

0 o 128c75

CF10 C PB3 configuration

If configured as a digital input.

0 o 135c75

CF11 C PB4 configuration

If configured as a digital input.

0 o 135c75

Parameter Level Description Min. Max. UM Resolution

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CF12 C PB5 configuration

If configured as a digital input.

0 o 128c75

CF13 C PB6 configuration

If configured as a digital input.

0 o 128c75

CF14 C NOT USED 0 0 CF15 C NOT USED 0 0

Probes offset

CF16 S PB1 offset. -12.0

-21

12.021°C °F

Dec Int

CF17 S PB2 offset. -12.0

-21

12.021°C °F

Dec Int

CF18 S PB3 offset. -5.0

-72

5.072Bar Psi

Dec Int

CF19 S PB4 offset. -5.0

-72

5.072Bar Psi

Dec Int

CF20 S PB5 offset. -12.0

-21

12.021°C °F

Dec Int

CF21 S PB6 offset. -12.0

-21

12.021°C °F

Dec Int

CF22 S NOT USED 0 0 CF23 S NOT USED 0 0 CF24 C Transducer PB3 pressure value at 4mA - 0.5 V. -1.0

-14

50.0

725

Bar Psi

Dec Int

CF25 C Transducer PB3 pressure value at 20mA - 5 V. -1.0

-14

50.0

725

Bar Psi

Dec Int

CF26 C Transducer PB4 pressure value at 4mA - 0.5 V. -1.0

-14

50.0

725

Bar Psi

Dec Int

CF27 C Transducer PB4 pressure value at 20mA - 5 V. -1.0

-14

50.0

725

Bar Psi

Dec Int

CF28 C NOT USED 0 0 CF29 C NOT USED 0 0

Digital inputs CF30 C ID1 configuration: 0 -o1 c75 CF31 C ID2 configuration: 0 -o1 c75 CF32 C ID3 configuration. 0 -o1 c75 CF33 C ID4 configuration. 0 -o1 c75 CF34 C ID5 configuration: 0 -o1 c75 CF35 C ID6 configuration. 0 -o1 c75 CF36 C ID7 configuration. 0 -o1 c75 CF37 C ID8 configuration. 0 -o1 c75 CF38 S ID9 configuratio n. 0 -o1 c75 CF39 C ID10 configuration. 0 -o1 c75 CF40 C ID11 configuration. 0 -o1 c75

Relay outputs CF41 C RL1 configuration. 0 -o1 c74 CF42 C RL2 configuration. 0 -o1 c74 CF43 C RL3 configuration. 0 -o1 c74 CF44 C RL4 configuration: 0 -o1 c74 CF45 C RL5 configuration: 0 -o1 c74 CF46 C RL6 configuration. 0 -o1 c74 CF47 C RL7 configuration. 0 -o1 c74 CF48 C RL8 configuration. 0 -o1 c74

Condensing proportional outputs

CF49 C NOT USED

Modulating outputs

Parameter Level Description Min. Max. UM Resolution

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CF50 C Proportional output OUT 1:

0= Output disabled 1= Evaporator pump 0...10V with modulating operation 2= Modulating output 0...10V for Free cooling 3= Not used 4= 0...10V auxiliary output no. 1 5= 0...10V auxiliary output no. 2 6= 0...10V modulating output compressor 1 circuit no. 1 7= 0...10V modulating output compressor 1 circuit no. 2 8= Condensing fans 0...10V modulating output circuit no. 1 9= Condensing fans 0...10V modulating output circuit no. 2 Relay controlling ON / OFF output

o 19c50

CF51 C Proportional output OUT 2:

o 19c50

CF52 C Proportional output OUT 3:

o 111c50

CF53 C Proportional output OUT 4:

o 111c50

Remote terminal

CF54 U Configuration of remote terminal no. 1:

0= Absent 1= On board NTC probe 2= Without on board NTC probe

Parameter Level Description Min. Max. UM Resolution

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CF55 C Configuration of remote terminal no. 2:

0= Absent 1= On board NTC probe 2= Without on board NTC probe

CF56 C Remote terminal no. 1 NTC probe offset. -12.0

-21

12.021°C °F

Dec Int

CF57 C Remote terminal no. 2 NTC probe offset. -12.0

-21

12.021°C °F

Dec Int

Operating logic

CF58 C Operating logic:

 chiller /  heat pump

1=  chiller /  heat pump

Chiller / heat pump mode selection

CF59 C Chiller / heat pump mode selection:

0= From keypad 1= From digital input 2= From analogue input

Automatic change-over

CF60 C Chiller / heat pump operation automatic changeover set if

parameter CF80=2.

-50.0

-58

110.0

230°C°F

Dec Int

CF61 C Chiller / heat pump operation automatic changeover differential if

parameter CF80=2.

0.1025.045°C °F

Dec Int

Unit of measurement selection

CF62 C °C or °F selection:

0= °C / BAR 1 = °F / psi

Mains frequency selection

CF63 S Mains frequency selection:

0= 50 Hz 1= 60 Hz 2= Continuous power input (to use if the PWM outputs for control of the condensing fans are not used)

Serial address CF64 U Serial address. 1 247 CF65 C Firmware release CF66 C Eeprom parameters 0 999

Temperature control of compressors with different cooling capacity CF67 C Compressor 1 capacity 0 100% CF68 C Compressor 2 capacity 0 100% CF69 C Compressor 3 capacity 0 100% CF70 C Compressor 4 capacity 0 100% CF71 C NOT USED 0 0 CF72 C NOT USED 0 0 CF73 C Maximum number of compressor starts after 15 minutes ON:

0 = Function disabled

015

Compressors operation enabling

CF74 C Selection of compressors operation enabling:

0= Chiller and heat pump 1= Chiller only 2= Heat pump only

Enabling of units with hybrid exchangers

CF75 C Enabling of units with hybri d exchangers:

1= Enabled

Buzzer enabling

CF76 C Buzzer enabling:

0= Disabled 1= Enabled

Parameter Level Description Min. Max. UM Resolution

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Chiller mode

CF77 C Chiller mode:

1= With compressors 2= Only FC 3= With compressors and FC

I/O expansion enabling

CF78 C I/O expansion enabling:

0= Not enabled 1= Enabled

Electronic expansion valve driver enabling

CF79 C Circuit 1 electronic expansion valve enabling:

0= Not enabled 1= Enabled

CF80 C Circuit 2 electronic expansion valve enabling:

0= Not enabled 1= Enabled

CF81 C Electronic expansion valve address 1 15 CF82 C Evaporation probe positioning selection:

0= In Ichill controller 1= In IEV valve driver

CF83 C Temperature control start delay after transmitting valve start

command

0 250 Sec.

CF84 C Visograph keypad presence:

0= No 1= Yes

I/O expansion configuration EI01 C I/O expansion board address 0 15 EI02 C PB1 configuration

If configured as a digital input.

0 o 128c75

EI03 C PB2 configuration

If configured as a digital input.

0 o 128c75

EI04 C PB3 configuration

If configured as a digital input.

0 o 135c75

EI05 C PB4 configuration

If configured as a digital input.

0 o 135c75

EI06 C PB5 configuration

If configured as a digital input.

0 o 135c75

EI07 C PB6 configuration

If configured as a digital input.

0 o 128c75

EI08 C PB7 configuration

If configured as a digital input.

0 o 128c75

EI09 C PB8 configuration

If configured as a digital input.

0 o 128c75

I/O expansion probes offset

EI10 C PB1 offset -12.0

-21

12.021°C °F

Dec Int

EI11 C PB2 offset -12.0

-21

12.021°C °F

Dec Int

EI12 C PB3 offset -5.0

-72

5.072Bar Psi

Dec Int

EI13 C PB4 offset -5.0

-72

5.072Bar Psi

Dec Int

EI14 C PB5 offset -12.0

-21

12.021°C °F

Dec Int

EI15 C PB6 offset -12.0

-21

12.021°C °F

Dec Int

EI16 C PB7 offset -12.0

-21

12.021°C °F

Dec Int

EI17 C PB8 offset -12.0

-21

12.021°C °F

Dec Int

Parameter Level Description Min. Max. UM Resolution

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EI18 C Transducer PB3 pressure value at 4mA - 0.5V. -1.0

-14

50.0 725

Bar Psi

Dec Int

EI19 C Transducer PB3 pressure value at 20mA - 4.5V. -1.0

-14

50.0 725

Bar Psi

Dec Int

EI20 C Transducer PB4 pressure value at 4mA - 0.5V. -1.0

-14

50.0 725

Bar Psi

Dec Int

EI21 C Transducer PB4 pressure value at 20mA - 4.5V. -1.0

-14

50.0 725

Bar Psi

Dec Int

EI22 C Transducer PB5 pressure value at 4mA - 0.5V. -1.0

-14

50.0 725

Bar Psi

Dec Int

EI23 C Transducer PB5 pressure value at 20mA - 4.5V. -1.0

-14

50.0 725

Bar Psi

Dec Int

I/O expansion digital inputs EI24 C ID1 configuration 0 -o1 c75 EI25 C ID2 configuration 0 -o1 c75 EI26 C ID3 configuration 0 -o1 c75 EI27 C ID4 configuration 0 -o1 c75 EI28 C ID5 configuration 0 -o1 c75 EI29 C ID6 configuration 0 -o1 c75 EI30 C ID7 configuration 0 -o1 c75 EI31 C ID8 configuration 0 -o1 c75 EI32 C ID9 configuration 0 -o1 c75

I/O expansion relay inputs EI33 C RL1 configuration 0 -o1 c74 EI34 C RL2 configuration 0 -o1 c74 EI35 C RL3 configuration 0 -o1 c74 EI36 C RL4 configuration 0 -o1 c74 EI37 C RL5 configuration 0 -o1 c74 EI38 C RL6 configuration 0 -o1 c74 EI39 C RL7 configuration 0 -o1 c74

I/O expansion proportional outputs

Modulating outputs EI40 C Selection of analogue outputs signal 0..10V or 4..20mA 0 1 EI41 C Proportional output OUT 1:

0= Output disabled 1= Evaporator pump with modulating operation 2= Modulating output for Free cooling 3= Not used 4= 0...10V auxiliary output no. 1 5= 0...10V auxiliary output no. 2 6= Modulating output compressor 1 circuit no. 1 7= Modulating output compressor 1 circuit no. 2 8= 0...10V condensing fans circuit no. 1 9= 0...10V condensing fans circuit no. 2 Relay controlling ON / OFF output

o 19c50

EI42 C Proportional output OUT 2:

0= Output disabled 1= Evaporator pump with modulating operation 2= Modulating output for Free cooling 3= Not used 4= 0...10V auxiliary output no. 1 5= 0...10V auxiliary output no. 2 6= Modulating output compressor 1 circuit no. 1 7= Compressor 1 modulating output circuit no. 2 8= 0...10V condensing fans circuit no. 1 9= 0...10V condensing fans circuit no. 2 10= Condensing fans PWM output circuit 1 11= Condensing fans PWM output circuit 2 Relay controlling ON / OFF output

o 111c50

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

EI43 C Proportional output OUT 3:

o 111c50

Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Dynamic setpoint

Sd01 U Dynamic setpoint max increase in chiller mode

Establishes the maximum variation of the working setpoint in chiller mode.

-30.0

-54

30.054°C °F

Dec Int

Sd02 C Max dynamic setpoint increase in heat pump mode

Establishes the maximum variation of the working setpoint in heat pump mode.

-30.0

-54

30.054°C °F

Dec Int

Sd03 U Dynamic setpoint ambient air temperature setting in chiller mode. -50.0

-58

110.0

230°C°F

Dec Int

Sd04 C Dynamic setpoint ambient air temperature setting in heat pump

mode.

-50.0

-58

110.0

230

°C °F

Dec Int

Sd05 U Dynamic setpoint ambient air temperature differential in chiller

mode.

-30.0

-54

30.054°C °F

Dec Int

Sd06 C Dynamic setpoint ambient air temperature differential in heat

pump mode.

-30.0

-54

30.054°C °F

Dec Int

Sd07 C Dynamic setpoint max increase in chiller mode auxiliary

analogue output 1.

-30.0

-54

30.054°C °F

Dec Int

Sd08 C Dynamic setpoint max increase in heat pump mode auxiliary

analogue output 1.

-30.0

-54

30.054°C °F

Dec Int

Sd09 C Dynamic setpoint ambient air temperature setting in chiller mode

auxiliary analogue output 1.

-50.0

-58

110.0

230

°C °F

Dec Int

Sd10 C Dynamic setpoint ambient air temperature setting in heat pump

mode auxiliary analogue output 1.

-50.0

-58

110.0

230

°C °F

Dec Int

Sd11 C Dynamic setpoint ambient air temperature differential in chiller

mode auxiliary analogue output 1.

-30.0

-54

30.054°C °F

Dec Int

Sd12 C Dynamic setpoint ambient air temperature differential in heat

pump mode auxiliary analogue output 1.

-30.0

-54

30.054°C °F

Dec Int

Sd13 C Dynamic setpoint max increase in chiller mode auxiliary

analogue output 2.

-30.0

-54

30.054°C °F

Dec Int

Sd14 C Dynamic setpoint max increase in heat pump mode auxiliary

analogue output 2.

-30.0

-54

30.054°C °F

Dec Int

Sd15 C Dynamic setpoint ambient air temperature setting in chiller mode

auxiliary analogue output 2.

-50.0

-58

110.0

230

°C °F

Dec Int

Sd16 C Dynamic setpoint ambient air temperature setting in heat pump

mode auxiliary analogue output 2.

-50.0

-58

110.0

230

°C °F

Dec Int

Sd17 C Dynamic setpoint ambient air temperature differential in chiller

mode auxiliary analogue output 2.

-30.0

-54

30.054°C °F

Dec Int

Sd18 C Dynamic setpoint ambient air temperature differential in heat

pump mode auxiliary analogue output 2.

-30.0

-54

30.054°C °F

Dec Int

Sd19 C Dynamic setpoint max increase in chiller mode auxiliary relay 1. -30.0

-54

30.054°C °F

Dec Int

Sd20 C Dynamic setpoint max increase in heat pump mode auxiliary

relay 1.

-30.0

-54

30.054°C °F

Dec Int

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

Sd21 C Dynamic setpoint ambient air temperature setting in chiller mode

auxiliary relay 1.

-50.0

-58

110.0 230

°C °F

Dec Int

Sd22 C Dynamic setpoint ambient air temperature setting in heat pump

mode auxiliary relay 1.

-50.0

-58

110.0 230

°C °F

Dec Int

Sd23 C Dynamic setpoint ambient air temperature differential in chiller

mode auxiliary relay 1.

-30.0

-54

30.054°C °F

Dec Int

Sd24 C Dynamic setpoint ambient air temperature differential in heat

pump mode auxiliary relay 1.

-30.0

-54

30.054°C °F

Dec Int

Sd25 C Dynamic setpoint max increase in chiller mode auxiliary relay 2. -30.0

-54

30.054°C °F

Dec Int

Sd26 C Dynamic setpoint max increase in heat pump mode auxiliary

relay 2.

-30.0

-54

30.054°C °F

Dec Int

Sd27 C Dynamic setpoint ambient air temperature setting in chiller mode

auxiliary relay 2.

-50.0

-58

110.0

230

°C °F

Dec Int

Sd28 C Dynamic setpoint ambient air temperature setting in heat pump

mode auxiliary relay 2.

-50.0

-58

110.0

230

°C °F

Dec Int

Sd29 C Dynamic setpoint ambient air temperature differential in chiller

mode auxiliary relay 2.

-30.0

-54

30.054°C °F

Dec Int

Sd30 C Dynamic setpoint ambient air temperature differential in heat

pump mode auxiliary relay 2.

-30.0

-54

30.054°C °F

Dec Int

Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Energy saving ES01 C Start of operating band no. 1 (0...24) . 0 24.00 Hours 1 0 Min ES02 C End of operating band no. 1 (0...24). 0 24.00 by Hours 10 Min ES03 C Start of operating band no. 2 (0...24) . 0 24.00 by Hours 1 0 Min ES04 C End of operating band no. 2 (0...24). 0 24.00 by Hours 10 Min ES05 C Start of operating band no. 3 (0...24) . 0 24.00 by Hours 1 0 Min ES06 C End of operating band no. 3 (0...24). 0 24.00 by Hours 10 Min ES07 C Monday operation with time band in energy saving

Monday operation with automatic start / stop.

0 - 0 7 - 7

ES08 C Tuesday operation with time band in energy saving

Tuesday operation with automatic start / stop.

0 - 0 7 - 7

ES09 C Wednesday operation with time band in energy saving

Wednesday operation with automatic start / stop.

0 - 0 7 - 7

ES10 C Thursday operation with time band in energy saving

Thursday operation with automatic start / stop.

0 - 0 7 - 7

ES11 C Friday operation with time band in energy saving

Friday operation with automatic start / stop.

0 - 0 7 - 7

ES12 C Saturday operation with time band in energy sav ing

Saturday operation with automatic start / stop.

0 - 0 7 - 7

ES13 C Sunday operation with time band in energy saving

Sunday operation with automatic start / stop.

0 - 0 7 - 7

ES14 C Energy saving setting increase in chiller mode. -30.0

-54

30.054°C °F

Dec Int

ES15 C Energy saving differential in chiller mode. 0.1025.045°C

°F

Dec Int

ES16 C Energy saving setting increase in heat pump mode. -30.0

-54

30.054°C °F

Dec Int

ES17 C Energy saving differential in heat pump mode. 0.1025.045°C

°F

Dec Int

ES18 C Maximum operating time of unit in OFF from RTC if forced ON

from button.

1 250 10 Min Min.

ES19 C Start of time band 1 - domestic hot water (0...24) 0 24.00 by Hours 10 Min ES20 C End of time band 1 - domestic hot water (0...24) 0 24.00 by Hours 10 Min ES21 C Start of time band 2 - domestic hot water (0...24) 0 24.00 by Hours 10 Min ES22 C End of time band 2 - domestic hot water (0...24) 0 24.00 by Hours 10 Min ES23 C Start of time band 3 - domestic hot water (0...24) 0 24.00 by Hours 10 Min

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

ES24 C End of time band 3 - domestic hot water (0...24) 0 24.00 by Hours 10 Min ES25 C Monday: energy saving active

Monday operation with domestic hot water time band

ES26 C Tuesday operation with domestic hot water time band 0 7 ES27 C Wednesday operation with domestic hot water time band 0 7 ES28 C Thursday operation with domestic hot water time band 0 7 ES29 C Friday operation with domestic hot water time band 0 7 ES30 C Saturday operation with domestic hot water time band 0 7 ES31 C Sunday operation with domestic hot water time band 0 7 ES32 C Domestic hot water energy saving setting increase -30.0

-54

30.054°C °F

Dec Int

ES33 C Domestic hot water differential in time band/digital input 0.1025.045°C

°F

Dec Int

Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Compressors plant

Cr01 C Defines the cooling plant temperature control type:

0= Disabled 1= Control with probe defined by ST09 2= Enabled with suction probe (evaporation) (condensing units and heat pumps are automatically disabled)

Cr02 C Suction probe compressors setpoint (evaporation)

Makes it possible to program the working setpoint of the suction probe

Cr03 Cr04 Bar

Psi

Dec Int

Cr03 C Suction probe compressors minimum setting (evaporation)

Establishes the minimum limit that can be utilised to set the suction probe working setpoint.

0 Cr02 Bar

Psi

Dec Int

Cr04 C Suction probe compressors maximum setting (evaporation)

Establishes the maximum limit that can be utilised to set the suction probe working setpoint.

Cr02 50

725

Bar Psi

Dec Int

Cr05 C Control steps activation band of suction probe. 0.1114.0

203

Bar Psi

Dec Int

Cr06 C Energy saving setting increase in cooling plant mode. 0.0014.0

203

Bar Psi

Dec Int

Cr07 C Energy saving differential in cooling plant mode. 0.1114.0

203

Bar Psi

Dec Int

Cr08 C No. of compressors to start in case of fault of probe allocated for

their control 0 ... 6

Cr09 C No. of condensing fan steps of the circuit to activate in case of

fault of probe allocated for their control 0 ... 4

Compressor

CO01 C Compressor minimum run time.

Establishes the time during which the compressor must run after being starting, even if the demand drops.

0 250 10 Sec 10 Seconds

CO02 C Compressors minimum stop time.

Establishes the time during which the compressor must remain stopped, even if restarting is requested. During this period the compressor LED will flash.

0 250 10 Sec 10 Seconds

CO03 C Time lag between starts of 2 compressors / capacity steps.

With two compressors, establishes the starting time lag between the two in order to limit starting peak current. During this period the compressor LED will flash (only for the compressor). With unit having one capacity controlled compressor. Establishes the activation time of the capacity control solenoid for a start at minimum capacity (see heading “7.15.1 Compressors control”).

1 250 Sec

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

CO04 C Time lag between stops of 2 compressors / capacity steps.

Establishes the stopping time lag between two compressors or two capacity steps.

0250Sec

CO05 C Delay at compressors starting from power ON.

Starting construed as physical power-up of the controller. Delays activation of all the outputs to distribute current draw and protect the compressor(s) from repeated starts in the event of frequent mains power losses.

0 250 10 Sec 10 Seconds

Capacity controls (INACTIVE FUNCTION)

CO06 C Capacity controls operation:

0= ON/OFF steps control 1= Direct action continuous run with capacity steps 2= Reverse action continuous run with capacity steps 3= Global continuous capacity step control

CO07 C Enabling for operation of minimum compressor capacity /

unloaded starting management: 0= Enables minimum capacity only at compressor start (start with minimum capacity / unloaded starting with valve OFF and compressor stopped) 1= Enables minimum capacity only at compressor start and during temperature control (start with minimum capacity / unloaded starting with valve OFF and compressor stopped) 2= Screw compressors, enables minimum capacity only at compressor start (start with minimum capacity / unloaded starting with valve ON and compressor stopped) 3= Screw compressors, enables minimum capacity at compressor start and during temperature control (start with minimum capacity / unloaded starting with valve ON and compressor stopped)

CO08 C Screw compressor intermittent valve control relay ON time; if

parameter value is 0 the function is disabled.

0250Sec

CO09 C Screw compressor intermittent valve control relay OFF time. 0 250 Sec

Compressor starting

CO10 C Compressor starting (see heading “7.15.1 Compressors control”):

0= Direct 1= Part-winding

CO11 CIf CO10=1 part-winding starting time. Used to vary the

energization of the two different relays that feed the two motor windings.

0 100 Dec Sec 0.1 Sec

CO12 C Time for which condensation fan thermal protection switch is

bypassed after controller power on

0250Sec

CO13 C Run time with gas by-pass valve / compressor unloaded starting

valve (see capacity controls operation).

0250Sec

Compressors rotation - balancing - temperature control

CO14 S Compressors rotation (see heading “7.15.6 Compressors

rotation”): 0= Fixed sequence 1= Rotation enabled with compressors temperature control on basis of running hours 2= Rotation enabled with compressors temperature control on basis of starts/hour (peak loads)

CO15 S Circuits balancing:

0= Circuits saturation 1= Circuits balancing

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

Evaporator water pump

CO16 S Evaporator pump / delivery fan operating mode:

0= Pump not installed and delivery fans not managed 1= Continuous operation; activation of the water pump / delivery fan occurs when unit is powered on (chiller / heat pump mode selection). 2= Operation on compressor request, starting and stopping of the pump and delivery fan are linked to starting and stopping of the compressor. In the case of an anti-freeze alarm the compressor will stop and the pump will continue to run.

CO17 S Compressor ON time lag from start ing of pump / delivery fan. 1 250 Sec CO18 S Evaporator water pump / delivery fan OFF time lack from

compressor stop. This time interval is observed also when the unit is set to stand-by.

0 250 Min

CO19 U No. of hours for forced rotation of evaporator pumps. 0 999 10 Hours 10 Hours CO20 S Simultaneous pumps run time after forced pumps rotation. 0 250 Sec

Condenser water pump

CO21 C Condenser pump operating mode:

0= Absent, pump is not managed 1= Continuous operation; starting and stopping of the pump linked to starting and stopping of the unit 2= Operation on compressor request; starting and stopping of the pump linked to starting and stopping of the compressor. In the case of an anti-freeze alarm the compressor will stop and the pump will continue to run.

CO22 CNot used 00 CO23 C Condenser pump OFF time lag from compressor stopping. This

time interval is observed also when the unit is set to stand-by.

0 250 Min

CO24 C No. of hours for forced rotation of condenser pumps. 0 999 10 Hours 10 Hour s CO25 C Simultaneous pumps run time after forced rotation of condenser

pumps.

0 250 Sec

Maintenance of loads CO26 S Compr essor 1 hour meter set. 0 999 10 Hours 10 Hours CO27 S Compr essor 2 hour meter set. 0 999 10 Hours 10 Hours CO28 S Compr essor 3 hour meter set. 0 999 10 Hours 10 Hours CO29 S Compr essor 4 hour meter set. 0 999 10 Hours 10 Hours CO30 C Compressor 5 hour meter set. 0 999 10 Hours 10 Hours CO31 C Compressor 6 hour meter set. 0 999 10 Hours 10 Hours CO32 S Pump / delivery fan hour meter set. 0 999 10 Hours 10 Hours CO33 S Evap orator pump no. 2 hour meter set. 0 999 10 Hours 10 Hours CO34 C Condenser pump hour meter set. 0 999 10 Hours 10 Hour s CO35 C Condenser pump no. 2 hour meter set. 0 999 10 Hours 10 Hours

Pump down

CO36 C Pump-down operation:

0= Function disabled 1= Power off with pump-down without pump-down on starting 2= Power off with pump-down with pump-down on starting 3= Power off with pump-down only in chiller mode without pump-down on starting 4= Power off with pump-down only in chiller mode with pumpdown on starting

CO37 C Pump-down pressure set. 0.0050.0

725

Bar Psi

Dec Int

CO38 C Pump-down pressure differential. 0.1112.0

174

Bar Psi

Dec Int

CO39 C Maximum holding time in pump-down in starting and in stopping. 0 250 Sec

Evaporator unloading

CO40 C Compressors unloading operation setpoint in chiller mode from

evaporator water inlet high temperature (see “7.16 Unloading function”).

-50.0

-58

110.0 230

°C °F

Dec Int

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

CO41 C Compressor unloading relay differential from evaporator water

inlet high temperature (see “7.16 Unloading function”).

0.1025.045°C °F

Dec Int

CO42 C Compressor unloading function activation lag time from

evaporator water inlet high temperature (see “7.16 Unloading function”).

1250Sec 10sec

CO43 C Compressor unloading operation holding time from evaporator

water inlet high temperature

0250Min

Condenser unloading

CO44 S Compressor temperature / pressure unloading setpoint in chill er

mode (see “7.16 Unloading function”).

0.0050.0

725

Bar Psi

Dec int

CO45 S Compressor temperature / pressu re differential in chiller mode

(see “7.16 Unloading function”).

0.1114.0

203

Bar Psi

Dec int

CO46 C Compressor temperature / pressure unloading setpoint in heat

pump mode (see “7.16 Unloading function”).

0.0050.0

725

Bar Psi

Dec int

CO47 C Compressor temperature / pressure unloading differential in heat

pump mode (see “7.16 Unloading function”).

0.1114.0

203

Bar Psi

Dec int

CO48 S Max holding time in compre ssors unloading operation f rom

temperature / pressure.

1250Min

CO49 C Selection of steps per circuit to activate in unloading operation:

1= No. 1 step 2= No. 2 steps 3= No. 3 steps

CO50 C Minimum operating time in ON capacity step after input in

unloading (only for compressors with capacity control steps).

0 250 Sec

Compressors liquid injection function

CO51 C Liquid injection solenoid valve activation setpoint 0

150 302°C°F

Dec Int

CO52 C Liquid injection solenoid valve deactivation differential 0.1025.045°C

°F

Dec Int

Management of resources in neutral zone operation

CO53 S Maximum permanence in neutral zone without activation of

resources - with at least one resource activated.

0 250 Min 10 Min

CO54 C Maximum permanence in neutral zone without rotation of

resources

0 999 by Hours 1 Hour

Evaporator water low temperature unloading

CO55 C Compressor unloading setpoint from evaporator water low

temperature

-50.0

-58

110.0 230°C°F

Dec Int

CO56 C Compressor unloading differential from evaporator water low

temperature

0.1025.045°C °F

Dec Int

CO57 C Compressor unloading operation MAX holding time from

evaporator low water temperature

0250Min

Time controlled pump down

CO58 C Pump down time in starting:

CO58 = 0 Function disabled CO58

 0 Function enabled for set time

0250Sec

CO59 C Pump down time in stop:

CO59 = 0 Function disabled CO59

 0 Function enabled for set time

0250Sec

Compressor with modulating control

CO60 C Compressor run time at maximum speed from temperature control

request: 0 = Function disabled

0250Sec

CO61 C Minimum value for inverter controlled compressor 0...10V

analogue output at starting

0100%

CO62 C Interval for inverter controlled compressor power increase at

starting

0250Sec

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

CO63 C Establishes the minimum percentage of continuous operati on of

the inverter controlled compressor below which the count starts of time CO64: 0= Function disabled

0 100 %

CO64 C MAX continuous operation time of inverter controlled

compressor with operation percentage below CO63: 0= Function disabled

0 250 Min 10 Min

CO65 C Operation time of inverter controlled compressor forced to

maximum speed

0 250 Sec

CO66 C Maximum time of continuous operation of inverter controlled

compressor after which the modulating compressor is stopped and, in the basis of the rotation strategy, starting of another compressor is forced: 0= Function disabled

0 999 by Hours

CO67 C Minimum value for 0...10V analogue output of inverter controlled

compressor no. 5 circuit no. 1

1 CO68 %

CO68 C Maximum value for 0...10V analogue output of inverter

controlled compressor no. 5 circuit no. 1

CO67 100 %

CO69 C Minimum value for 0...10V analogue output of inverter controlled

compressor no. 6 circuit no. 2

1 CO70 %

CO70 C Maximum value for 0...10V analogue output of inverter

controlled compressor no. 6 circuit no. 2

CO69 100 %

CO71 C Capacity increase interval in steady state conditions 1 250 Sec

Compressor forced rotation function

CO72 C Maximum time of continuous operation of single compressor in

circuit

0 250 Min

Maintenance of loads CO73 C Domestic hot water pump hour meter set 0 999 10 Hours 10 Hours CO74 C Solar panels pump hour meter set 0 999 10 Hours 10 Hours CO75 C Inversion time of valve on compressor stop 0 250 Sec

Unit capacity control CO76 C Limitation of number of steps in Chiller mode 1 15 CO77 C Limitation of number of steps in Heat Pump mode 1 15 CO78 C Limitation of number of steps in Domestic Hot Water mode 1 15 CO79 C Maximum output % of Inverter controlled compressor in Chiller

mode

1 100 %

CO80 C Maximum output % of Inverter controlled compressor in Heat

Pump mode

1 100 %

CO81 C Maximum output % of Inverter controlled compressor i n

Domestic Hot Water mode

1 100 %

CO82 C Ambient air temperature for compressor speed reduction in heat

pump mode

-50.0

-58

0.0 0

110.0 230

50.0 725

°C °F Bar Psi

Dec Int Dec Int

CO83 C Ambient air temperature hysteresis for compressor speed

reduction in heat pump mode

0.1 0

0.1 1

25.0 45

14.0 203

°C °F Bar Psi

Dec Int Dec Int

CO84 C Inverter controlled maximum speed for surpassing ambient air

temperature threshold

1 100 %

CO85 C Evaporator water pump stop time with unit at setpoint 0 250 10 Min CO86 C Evaporator water pump stop time with unit stopped (stand-by or

OFF)

0 250 10 Hours

CO87 C Evaporator water pump run time 0 250 Sec CO88 C Condenser water pump stop time with unit at setpoint 0 250 10 Min CO89 C Condenser water pump stop time with unit stopped (stand-by or

OFF)

0 250 10 Hours

CO90 C Condenser water pump run time 0 250 Sec CO91 C Minimum time between two starts of the same compressor 0 250 Sec

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

CO92 C Advance of water side solenoid valve activation with respect to

compressor start

0250Sec

CO93 C Time lag of water side solenoid valve activation with respect to

compressor stop

0250Sec

CO94 C % compressor inverter output in defrosting 0 100 % CO95 C FC pump hours set 0 999 10 Hours CO96 C Inverter compressor analogue output value in unloading 0 100 % Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Circuit 1 auxiliary relay

US01 C Auxiliary relay 1 operation(see paragraph “7.17 Fans control”):

0= Not enabled 1= Direct action always enabled 2= Direct action enabled only with unit in ON 3= Reverse action always enabled 4= Reverse action enabled only with unit in ON

US02 C Configuration of analogue input for management of circuit 1

auxiliary relay makes it possible to choose probe from PB1 to PB10 for management of the function

120

US03 C Auxiliary relay 1 output minimum summer set -50.0

-58

US5 °C

°F

Dec Int

US04 C Auxiliary relay 1 output maximum summer set US5 110.0

230

°C °F

Dec Int

US05 C Auxiliary relay 1 output summer setpoint US3 US4 °C

°F

Dec Int

US06 C Auxiliary relay 1 output winter minimum setpoint -50.0

-58

US8 °C

°F

Dec Int

US07 C Auxiliary relay 1 output winter maximum setpoint US8 110.0

230

°C °F

Dec Int

US08 C Auxiliary relay 1 output winter setpoint US6 US7 °C

°F

Dec Int

US09 C Auxiliary relay 1 summer differential 0.1025.045°C

°F

Dec Int

US10 C Auxiliary relay 1 winter differential 0.1025.045°C

°F

Dec Int

Circuit 2 auxiliary relay

US11 C Auxiliary relay 2 operation:

0= Not enabled 1= Direct action always enabled 2= Direct action enabled only with unit in ON 3= Reverse action always enabled 4= Reverse action enabled only with unit in ON

US12 C Configuration of analogue input for management of circuit 2

auxiliary relay makes it possible to choose probe from PB1 to PB10 for management of the function

120

US13 C Auxiliary relay 2 output minimum summer set -50.0

-58

US15 °C

°F

Dec Int

US14 C Auxiliary relay 2 output maximum summer set US15 110.0

230

°C °F

Dec Int

US15 C Auxiliary relay 2 output summer setpoint US13 US14 °C

°F

Dec Int

US16 C Auxiliary relay 2 output winter minimum setpoint -50.0

-58

US18 °C

°F

Dec Int

US17 C Auxiliary relay 2 output winter maximum setpoint US18 110.0

230

°C °F

Dec Int

US18 C Auxiliary relay 2 output winter setpoint US16 US7 °C

°F

Dec Int

US19 C Auxiliary relay 2 summer differential 0.1025.045°C

°F

Dec Int

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

US20 C Auxiliary relay 2 winter differential 0.1025.045°C

°F

Dec Int

US21 C Auxiliary relays maximum activation time 0 250 Min

Auxiliary 0...10V proportional output 1

US22 C Operation of auxiliary proportional output 1:

0= Not enabled 1= Direct action always enabled 2= Direct action enabled only with unit in ON 3= Reverse action always enabled 4= Reverse action enabled only with unit ON

US23 C Configuration of analogue input for management of auxiliary

output 1 makes it possible to select probe from PB1 to PB10 for management of the function

120

US24 C Auxiliary analogue output 1 minimum summer set -50.0

-58

0.0 0

US26 °C

°F Bar Psi

Dec Int Dec Int

US25 C Auxiliary analogue output 1 maximum summer set US26 110 .0

230

50.0 725

°C °F Bar Psi

Dec Int Dec Int

US26 C Auxiliary analogue output 1 summer set US24 US25 °C

°F Bar Psi

Dec Int Dec Int

US27 C Auxiliary analogue output 1 minimum winter set -50.0

-58

US29 °C

°F

Dec Int

US28 C Auxiliary analogue output 1 maximum winter set US29 110.0

230

°C °F

Dec Int

US29 C Auxiliary analogue output 1 winter set US27 US28 °C

°F

Dec Int

US30 C Auxiliary analogue output 1 summer differential 0.0025.045°C

°F

Dec Int

US31 C Auxiliary analogue output 1 winter differential 0.0025.045°C

°F

Dec Int

US32 C Auxiliary analogue output 1 minimum value 0

US33 %

US33 C Auxiliary analogue output 1 maximum value US32 100 %

Auxiliary 0...10V proportional output 2

US34 C Operation of auxiliary proportional output 2 (see function and

auxiliary output diagrams): 0= Not enabled 1= Direct action always enabled 2= Direct action enabled only with unit in ON 3= Reverse action always enabled 4= Reverse action enabled only with unit ON

US35 C Configuration of analogue input for management of auxiliary

output 2 makes it possible to select probe from PB1 to PB10 for management of the function

120

US36 C Auxiliary analogue output 2 minimum summer set -50.0

-58

US38 °C

°F

Dec Int

US37 C Auxiliary analogue output 2 maximum summer set US38 110 .0

230

°C °F

Dec Int

US38 C Auxiliary analogue output 2 summer set US36 US37 °C

°F

Dec Int

US39 C Auxiliary analogue output 2 minimum winter set -50.0

-58

US41 °C

°F

Dec Int

US40 C Auxiliary analogue output 2 maximum winter set US41 110.0

230

°C °F

Dec Int

US41 C Auxiliary analogue output 2 winter set US39 US40 °C

°F

Dec Int

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

US42 C Auxiliary analogue output 2 summer differential 0.1025.045°C

°F

Dec Int

US43 C Auxiliary analogue output 2 winter differential 0.1025.045°C

°F

Dec Int

US44 C Auxiliary analogue output 2 minimum value 0 US45 % US45 C Auxiliary analogue output 2 maximum value US44 100 %

Modulating output minimum value

US46 C Forcing to 0 of the analogue output below the minimum value 0 1

Modulating evaporator pump US47 C Select probe 1 for modulating pump operation in chiller mode 0 20 US48 C Select probe 2 for modulating pump operation in chiller mode 0 20 US49 C Set point for modulating pump maximum speed in chiller mode 30.0

-58

110.0 230°C°F

Dec Int

US50 C Modulating pump regulation proportional band in chiller mode 0.0025.045°C

°F

Dec Int

US51 C Modulating pump minimum speed in chiller mode 0 100 % US52 C Modulating pump maximum speed in chiller mode 0 100 % US53 C Select probe 1 for modulating pump operation in heat pump mode 0 20 US54 C Select probe 2 for modulating pump operation in heat pump mode 0 20 US55 C Set point for modulating pump maximum speed in heat pump

mode

-50.0

-58

110.0 230°C°F

Dec Int

US56 C Modulating pump regulation proportional band in heat pump

mode

0.1025.045°C °F

Dec Int

US57 C Modulating pump minimum speed in heat pump mode 0 100 % US58 C Modulating pump maximum speed in heat pump mode 0 100 % US59 C Modulating pump speed during free cooling 0 100 % US60 C Modulating pump speed with compressor off 0 10 0 %

Auxiliary outputs enabling

US61 C Auxiliary relay 1 output enable:

1= Chiller only 2= Heat pump only 3= Chiller and heat pump

US62 C Auxiliary relay 2 output enable:

1= Chiller only 2= Heat pump only 3= Chiller and heat pump

US63 C Auxiliary relay 1 analogue output enable:

1= Chiller only 2= Heat pump only 3= Chiller and heat pump

US64 C Auxiliary relay 2 analogue output enable:

1= Chiller only 2= Heat pump only 3= Chiller and heat pump

Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Condensing fans

FA01 C Fans control:

0= Absent 1= Always on 2= ON/OFF steps control 3= Continuous ON/OFF steps control 4= Proportional speed regulator

FA02 C Fans operating mode:

0= Dependent on compressor 1= Independent on compressor

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

FA03 C Fans max speed start time after ON (TRIAC). At each start,

irrespective of the condensing temperature / pressure the fan is fed at maximum voltage for time FA03 after which the fan continues to run at the speed set by the regulator.

0 250 Sec

FA04 C Fans staggering 0 8 Micro-

seconds

250ms

FA05 C Single or separate condensing fan:

0= Single 1= Separate

FA06 C Pre-ventilation in chiller mode before compressor ON.

Used to set a run time of the fans at maximum speed in chiller mode before compressor start, in order to anticipate the sudden condensing temperature / pressure increase (resulting from starting of the compressor) and improve temperature control.

0 250 Sec

Operation in chiller mode

FA07 C Minimum operating speed of fans in chiller mode.

Used to set a minimum value of the proportional control of the fans in chiller mode. Expressed as a percentage from 0 to 100% of the maximum permitted voltage.

0 100 %

FA08 C Maximum operating speed of fans in chiller mode.

Used to set a maximum value of the proportional control of the fans in chiller mode. Expressed as a percentage from 0 to 100% of the maximum permitted voltage.

0 100 %

FA09 C Proportional control:

Used to set the condensing temperature / pressure value in chiller mode corresponding to the minimum fan speed.

Step control 1st STEP SET Used to set the condensing temperature / pressure

value in chiller mode to which operation in ON corresponds of the relay output configured as 1st condensing fan speed step.

0.0050.0 725

Bar Psi

Dec Int

FA10 C Proportional control:

Used to set the condensing temperature / pressure value in chiller mode corresponding to the maximum fan speed.

Step control 2nd STEP SET Used to set the condensing temperature / pressure

value in chiller mode to which operation in ON corresponds of the relay output configured as 2nd condensing fan speed step.

0.0050.0 725

Bar Psi

Dec Int

FA11 C Proportional control:

Fans control proportional band in chiller mode. Used to set a temperature / pressure differential with a corresponding change in fan speed from minimum to maximum.

Step control

With Par. FA01 = 2 or 3 this becomes the differential on the step of circuit 1 in chiller mode.

0.1114.0 203

Bar Psi

Dec Int

FA12 C Proportional control:

CUT-OFF differential in chiller mode. Used to set a temperature / pressure differential in chiller mode for stopping of the fan.

Step control

With Par. FA01 = 2 or 3 this becomes the differential on the step of circuit 2 in chiller mode.

0.1114.0 203

Bar Psi

Dec Int

FA13 C Override CUT-OFF in chiller mode.

Used to set a temperature / pressure differential in chiller mode at which the fan remains at minimum speed.

0.1114.0 203

Bar Psi

Dec Int

FA14 C CUT-OFF delay time.

Used to set a time lag for activation of the CUT-OFF function at starting of the fans. If at the compressor start the proportional controller requests fan cut-off and FA14 is different from 0, the fan will be forced to the minimum speed for the set time. If FA14=0 the function is not enabled.

0 250 Sec

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

FA15 C Night function speed in chiller mode.

Used to set a maximum value of the proportional control of the fans in chiller mode. Expressed as a percentage from 0 to 100% of the maximum permitted voltage.

0100%

Operation in heat pump mode

FA16 C Fans minimum speed in heat pump mode.

Used to set a minimum value of the proportional control of the fans in heat pump mode. Expressed as a percentage from 0 to 100% of the maximum permitted voltage.

0100%

FA17 C Fans maximum speed in heat pump mode.

Used to set a maximum value of the proportional control of the fans in heat pump mode. Expressed as a percentage from 0 to 100% of the maximum permitted voltage.

0100%

FA18 C Proportional control:

Fans maximum speed temperature / pressure set in heat pump mode. Used to set the condensing temperature / pressure value in heat pump mode corresponding to the minimum fan speed.

Step control 1st STEP SET Used to set the condensing temperature / pressure

value in heat pump mode to which operation in ON corresponds of the relay output configured as 1st condensing fan speed step.

0.0050.0 725

Bar Psi

Dec Int

FA19 C Proportional control:

Fans minimum speed temperature / pressure set in heat pump mode. Used to set the condensing temperature / pressure value in heat pump mode corresponding to the maximum fan speed.

Step control 2nd STEP SET Used to set the condensing temperature / pressure

value in heat pump mode to which operation in ON corresponds of the relay output configured as 2nd condensing fan speed step.

0.0050.0 725

Bar Psi

Dec Int

FA20 C Proportional control:

Fans proportional band in heat pump mode. Used to set a temperature / pressure differential with a corresponding change in fan speed from minimum to maximum.

Step control

With Par. FA01= 2 or 3 this becomes the differential on the step of circuit 1 in heat pump mode (see fans control diagram).

0.1114.0 203

Bar Psi

Dec Int

FA21 C Proportional control:

CUT-OFF differential in heat pump mode. Used to set a temperature / pressure differential in heat pump mode for stopping of the fan.

Step control

With Par. FA01= 2 / 3 becomes the differential on the step of circuit no. 2 in heat pump mode (see fans control diagram).

0.1

14.0 203

Bar Psi

Dec Int

FA22 C CUT-OFF override in heat pump mode.

Used to set a temperature / pressure differential in heat pump mode at which the fan remains at minimum speed.

0.1114.0 203

Bar Psi

Dec Int

FA23 C Night function speed in heat pump mod e.

Used to set a maximum value of the proportional control of the fans in heat pump mode. Expressed as a percentage from 0 to 100% of the maximum permitted voltage.

0100%

Hot start

FA24 C Hot start setpoint. -50.0

-58

110.0 230

°C °F

Dec Int

FA25 C Hot start differential. 0.1025.045°C

°F

Dec Int

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

3-4 Fans step (chiller mode operation)

FA26 C Step control

3rd STEP SET Used to set the condensing temperature / pressure

value in chiller mode to which operation in ON corresponds of the relay output configured as 3rd condensing fan speed step.

0.0050.0 725

Bar Psi

Dec Int

FA27 C Step control

4th STEP SET Used to set the condensing temperature / pressure

value in chiller mode to which operation in ON corresponds of the relay output configured as 4th condensing fan speed step.

0.0050.0 725

Bar Psi

Dec Int

3-4 Fans step (heat pump mode operation)

FA28 C Step control

3rd STEP SET Used to set the condensing temperature / pressure

value in heat pump mode to which operation in ON corresponds of the relay output configured as 3rd condensing fan speed step.

0.0050.0 725

Bar Psi

Dec Int

FA29 C Step control

4th STEP SET Used to set the condensing temperature / pressure

value in heat pump mode to which operation in ON corresponds of the relay output configured as 4th condensing fan speed step.

0.0050.0 725

Bar Psi

Dec Int

Pre-ventilation in heat pump mode

FA30 C Pre-ventilation in heat pump mode.

Used to set a run time of the fans at maximum speed in Heat pump mode before starting of the compressor (only if FA01 = 4)

0 250 Sec Sec

FA31 C Post-ventilation in heat pump mode.

Used to keep the fan running for a certain period after stopping of the compressor

0 250 Sec 10Sec

FA32 C Ambient air temperature for post-ventilation in heat pump mode -50.0

-58

110.0 230°C°F

Dec int

FA33 C Fans speed during post-ventilation 0 100 % Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Anti-freeze - support - water heater elements

Ar01 S Anti-freeze heaters setpoint (air/air unit) in chiller mode.

Used to set a temperature value below which the anti-freeze heaters are switched on

-50.0

-58

110.0 230°C°F

Dec Int

Ar02 S Anti-freeze / support heaters regulation band range in chiller

mode

0.1025.045°C

°F

Dec Int

Ar03 C Support heaters setpoint (air/air unit) in heat pump mode.

Used to set a temperature value below which the anti-freeze heaters are switched on

-50.0

-58

110.0 230°C°F

Dec Int

Ar04 C Anti-freeze / support heaters regulation band range in heat pump

mode

0.1025.045°C

°F

Dec Int

Ar05 C Operation of anti-freeze / support heaters in defrost:

0= Activated only by thermoregulator 1= Activated by thermoregulator and during defrost cycle

Ar06 C Anti-freeze / support heaters thermoregulation probe in chiller

mode: 0= Disabled 1= Regulation on evaporator inlet 2= Regulation on evaporator outlet 1 / 2 3= Regulation on evaporator outlet 1 / 2 and common outlet 4= Regulation on ambient air temperature

Ar07 C Anti-freeze / support heaters thermoregulation probe in heat

pump mode: 0= Disabled 1= Regulation on evaporator inlet 2= Regulation on evaporator outlet 1 / 2 3= Regulation on evaporator outlet 1 / 2 and common outlet 4= Regulation on ambient air temperature

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

Ar08 C Condenser anti-freeze heaters thermoregulation probe:

0= Disabled 1= Regulates common condenser water inlet probe 2= Regulates common condenser and condenser 1 / 2 water inlet probe 3= Regulates condenser 1 / 2 water outlet probe 4= Regulates condenser 1 / 2 and common water outlet probe 5= Regulation on ambient air temperature

Ar09 C Switches on anti-freeze heaters when instrument is in remote OFF

or Stand-by: 0= Always off in remote OFF or Stand-by 1= On in remote OFF or Stand-by (switched on in accordance with thermoregulator request)

Ar10 S Establishes operation of evap orator / condenser anti-freeze

heaters in case of fault of a probe dedicated to heaters control: 0= Off in case of probe fault 1= On in case of probe fault

Water heater function

Ar11 C Water heater function:

0= Disabled 1= Enabled with control in integration 2= Enabled with control in heating

Ar12 C Water heater elements activation ambient air setpoint. -50.0

-58

110.0 230°C°F

Dec Int

Ar13 C Water heater elements deactivation ambient air differential. 0.1025.045°C

°F

Dec Int

Ar14 C Water heater elements activation time lag. 0 250 Min

Water heater operation in chiller mode

Ar15 C Water heater elements setpoint in chiller mode. -50.0

-58

110.0 230°C°F

Dec Int

Ar16 C Water heater elements proportional band in chiller mode. 0.1025.045°C

°F

Dec Int

Water heater operation in heat pump mode

Ar17 C Water heater elements setpoint in heat pump mode. -50.0

-58

110.0 230°C°F

Dec Int

Ar18 C Water heater elements proportional band in heat pump mode. 0.1025.045°C

°F

Dec Int

Ar19 C Compressors off ambient air setpoint in integration mode. -50 .0

-58

110.0 230°C°F

Dec Int

Ar20 C Compressors on ambient air differential in integration mode. 0.1025.045°C

°F

Dec Int

Anti-freeze alarm

Ar21 C Anti-freeze alarm thermoregulation probe in chiller mode:

0= Disabled 1= Regulation on evaporator inlet 2= Regulation on evaporator outlet 1/2 3= Regulation on evaporator outlet 1/2 and common outlet 4= Regulation on temperature Ambient air

Ar22 C Anti-freeze alarm thermoregulation probe in heat pump mode:

0= Disabled 1= Regulation on evaporator inlet 2= Regulation on evaporator 1 / 2 outlet 3= Regulation on evaporator outlet 1 / 2 and common outlet 4= Regulation on Ambient Air Temp.

Ar23 C Condenser anti-freeze alarm thermoregulation probe:

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

Evaporator water pump operation with anti-freeze alarm

Ar24 S Causes pump/s to start for anti-freeze when device is OFF or on

Stand-by: 0= Always off in remote OFF or Stand-by 1= On in remote OFF or Stand-by (switched on in accordance with thermoregulator request)

Ar25 C Pump/s operation thermoregulation probe for anti-freeze:

0= Disabled 1= Regulation on evaporator inlet 2= Regulation on evaporator outlet 1 / 2 3= Regulation on evaporator outlet 1 / 2 and common outlet 4= Regulation on Ambient Air Temp.

Ar26 C Pump activation setpoint in anti-freeze operation on

thermoregulation probe

-50.0

-58

110.0 230°C°F

Dec Int

Ar27 C Pump deactivation differential in anti-freeze operation on

thermoregulation probe

0.1025.0

45.0°C°F

Dec Int

Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Defrosting

dF01 C Defrost modes:

0= Defrosting disabled 1= Temperature / pressure 2= Start depends on value of par. dF24 end by time 3= Start depends on value of par. dF24 end by external contact 4= With condensing fan 5= Start by external contact and end depending on value of par.

dF24

dF02 C Defrost start pressure / temperature. 0.0050.0

725

Bar Psi

Dec Int

dF03 C Defrost end pressure / temperature. 0.0050.0

725

Bar Psi

Dec Int

dF04 C Defrost minimum duration. 0 250 Sec dF05 C Defrost maximum duration. 0 250 Min dF06 C Time lag between defrosting of two circuits. 0 250 Min dF07 C Wait time in compressor OFF before defrosting. 0 250 Sec dF08 C Wait time in compressor OFF after defrosting. 0 250 Sec dF09 C Defrosting interval on same circuit. 1 99 Min dF10 C Temperature set for combined defrost cycle start, circuit no. 1

after count of parameter DF10.

-50.0

-58

110.0 230°C°F

Dec Int

dF11 C Temperature set for combined defrost cycle end, circuit no. 1. -50.0

-58

110.0 230°C°F

Dec Int

dF12 C Temperature set for combined defrost cycle start, circuit no. 2

after count of parameter DF10.

-50.0

-58

110.0 230°C°F

Dec Int

dF13 C Temperature set for combined defrost cycle end, circuit no. 2. -50.0

-58

110.0 230°C°F

Dec Int

dF14 C Forcing in ON activates all defrost steps in circuit no. 1:

0= Disabled 1= Enabled

dF15 C Forcing in ON activates all defrost steps in circuit no. 2:

0= Disabled 1= Enabled

dF16 C Starting time lag between two compressors in defrost. 0 250 Sec dF17 C Enabling of fan ON during defrosting / dripping:

0= Disabled 1= Only defrost enabled 2= Defrost / dripping enabled

dF18 C Pressure / temperature set for forced ON of fans during defrost. 0.0050.0

725

Bar Psi

Dec Int

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

Forced defrost dF19 C Minimum wait time before forced defrost. 0 250 Sec dF20 C Forced defrost temperature / pressure set. 0.0050.0

725

Bar Psi

Dec Int

dF21 C Forced defrost differential. 0.1114.0

203

Bar Psi

Dec Int

Defrost mode

dF22 C Start of defrost cycle in units with two circuits:

0= Independent 1= If both circuits have reached defrost start request 2= If at least one circuit has reached defrost start request

dF23 C Defrost cycle end in units with two circuits and single condensing

fan: 0= Independent 1= If both circuits have reached defrost end condition 2= If at least one circuit has reached defrost end condition

Defrost start end from analogue input

dF24 C Probe that determines defrost start end:

0= Start and end with condensing temperature / pressure probe 1= Start with evaporation pressure probe, stop with condensing temperature / pressure prone 2= Start with condensing temperature / pressure probe, stop with evaporation pressure probe 3= Start and end by evaporation pressure

Delivery fan operation in defrost

dF25 C Delivery fan block during defrosting:

0= Not enabled 1=Enabled

Defrost with condensing fans

dF26 C Defrost enable set with condensing fans -50.0

-58

110.0 230°C°F

Dec Int

Hybrid exchangers

dF27 C Summer exchange temperature/pressure set 1 hybrid exchangers -50.0

-58

110.0 230°C°F

Dec Int

dF28 C Summer exchange temperature/pressure set 2 hybrid exchangers -50.0

-58

110.0 230°C°F

Dec Int

dF29 C Summer exchange temperature differential 1 hybrid exchangers 0.10 25.045°C

°F

Dec Int

dF30 C Summer exchange temperature differential 2 hybrid exchangers 0.10 25.045°C

°F

Dec Int

dF31 C Winter exchange temperature/pressure set 1 hybrid exchangers -50.0

-58

110.0 230°C°F

Dec Int

dF32 C Winter exchange temperature/pressure set 2 hybrid exchangers -50.0

-58

110.0 230°C°F

Dec Int

dF33 C Winter exchange temperature/pressure differential 1 hybrid

exchangers

0.10 25.045°C °F

Dec Int

dF34 C Winter exchange temperature/pressure differential 2 hybrid

exchangers

0.10 25.045°C °F

Dec Int

dF35 C Probe for management of hybrid exchangers:

0= Ambient air temperature 1= Condensing temperature / pressure

dF36 C Split coils forcing time in summer mode at compressor start 0 250 Sec.

Dynamic setpoint in defrosting

dF37 C Maximum dynamic setpoint increase in defrosting -14.0

-203

14.0 203

Bar Psi

Dec Int

dF38 C Dynamic setpoint ambient air temperature setting in defrosting -50.0

-58

110.0 230

°C Dec

Int

dF39 C Dynamic setpoint ambient air temperature differential in

defrosting

-30.0

-54

30.054°C °F

Dec Int

Pr1 U User password 0 999

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Heat recovery

rC01 C Recovery operation:

0= Disabled 1= 2 separate circuits 2= 2 circuits in parallel

rC02 C Forced step deactivation time. 0 250 Sec rC03 C Forced step deactivation time after rotation of recovery valve. 0 250 Sec rC04 C Minimum operation time in recovery mode. 0 250 Min rC05 C Minimum time lag between recovery end and next recovery. 0 250 Min rC06 C Recovery function disabling set. 0.0050.0

725

Bar Psi

Dec Int

rC07 C Recovery function enabling differential. 0.1114.0

203

Bar Psi

Dec Int

rC08 C Maximum disabling time of recovery from condensing pressure /

temperature.

0 250 Min

rC09 C Fans disabling in recovery 0 1 Pr1 U User password 0 999 Pr2 S Service password 0 999 Pr3 C Manufacturer password 0 999

Domestic hot water

FS01 C Enabling of domestic hot water production or domestic hot water

and free cooling: 0= Disabled 1= Domestic hot water production with common return, heating/ cooling 2= Domestic hot water production with dedicated return, heating/ cooling

FS02 C Operating priority:

0= Heating / cooling 1= Domestic hot water 2= Domestic hot water from digital input

FS03 C Domestic hot water setpoint

Used to program the working setpoint for the production of domestic hot water

FS05 FS06 °C

°F

Dec Int

FS04 C Domestic hot water control steps activation band 0.1025.045°C

°F

Dec Int

FS05 C Domestic hot water minimum setpoint value

Establishes the minimum limit that can be utilised to set the domestic hot water setpoint

-50.0

-58

FS06 °C

°F

Dec Int

FS06 C Domestic hot water maximum setpoint value

Establishes the maximum limit that can be utilised to set the domestic hot water setpoint

FS05 110.0

230°C°F

Dec Int

FS07 C Activation of steps to reach the domestic hot water setpoint:

0= Start all compressors 1= Start compressors and heaters

FS08 C Switch on heaters in domestic hot water temperature control:

0= No 1= Yes

FS09 C Time to start all compressors and heaters in domestic hot water

production

0 250 Min

FS10 C Outputs energization delay for the production of domestic hot

water

0 250 Sec Int

FS11 C Cycle inversion delay during production of domestic hot water 0 250 Sec Int FS12 C Type of Anti-Legionella activation:

0= By time 1= By hourly bands 2= Daily

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

FS13 C Time lag between two Anti-Legionella production cycles. If the

value is set to 0 the function is disabled.

0 250 by Hours

FS14 C Anti-Legionella setpoint

Used to set the Anti-Legionella working setpoint

FS15 FS16 °C

°F

Dec Int

FS15 C Anti-Legionella setpoint minimum value

Establishes the minimum limit that can be utilised to set the AntiLegionella setpoint

-50.0

-58

FS14 °C

°F

Dec Int

FS16 C Anti-Legionella setpoint maximum value

Establishes the maximum limit that can be utilised to set the AntiLegionella setpoint

FS14 110.0

230°C°F

Dec Int

FS17 C Anti-Legionella activation time 0 24.00 by Hours 10 Min FS18 C Anti-Legionella activation day:

1= Sunday ……. 7= Saturday

FS19 C Holding time in Anti-Legionella production 1 250 Min FS20 C Heating elements switch-off band in Anti-Legionella 0.1025.045°C

°F

Dec Int

FS21 C Free cooling operation enabling differential 0.1025.045°C

°F

Dec Int

FS22 C Free cooling operation hysteresis 0.1025.045°C

°F

Dec Int

FS23 C Water setpoint for solar panels integration

Used to set the working setpoint of the solar panels

FS25 FS26 °C

°F

Dec Int

FS24 C Solar panels integration operation band 0.1025.045°C

°F

Dec Int

FS25 C Solar panels minimum water set

Establishes the minimum limit that can be utilised to set the solar panels setpoint

-50.0

-58

FS23 °C

°F

Dec Int

FS26 C Solar panels maximum water set

Establishes the maximum limit that can be utilised to set the solar panels setpoint

FS23 110.0

230°C°F

Dec Int

FS27 C Domestic hot water outlets inversion delay from starting of

domestic hot water pump

0250Sec

FS28 C Domestic hot water pump off delay from inversion of domestic

hot water outlets

0250Sec

FS29 C Maximum holding time in Anti-Legionella function 0 250 Min FS30 C Domestic hot water production suspension setpoint -50.0

-58

110.0

230°C°F

FS31 C Domestic hot water production re-enabling differential 0.1025.045°C

°F

FS32 C Domestic hot water production suspension minimum duration 0 250 Min FS33 C Domestic hot water pump continuous operation enabling 0 1 FS34 C Free cooling pump off time for units with exclusively Free

cooling

0250Min

FS35 C Free cooling pump on time for units with exclusively Free cooling 0 250 Sec FS36 C Maximum holding time in Free cooling 0 250 Min FS37 C Free cooling control setpoint -50

-58

110.0

230°C°F

Dec Int

FS38 C Free cooling control proportional band 0.1025.045°C

°F

Dec Int

FS39 C Free cooling valve outlet minimum value 0 100 % FS40 C Free cooling valve outlet maximum value 0 100 % FS41 C Selection of T1 probe for Free cooling:

0= Disabled 1= Pb1 2= Pb2, others.

020

FS42 C Selection of T1 probe for Free cooling:

0= Disabled 1= Pb1 2= Pb2, others.

020

Parameter Level Description Min. Max. UM Resolution

OPERATING AND MAINTENANCE MANUAL

Chapter 7 - Electronic controller

TAEevo Tech 015÷802 60 Hz UL

The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited

ENGLISH

FS43 C Ambient air set point for condensing fans forcing to maximum

speed

-50

-58

110.0 230°C°F

FS44 C Ambient air differential for condensing fans forcing to maximum

speed

0.1025.045°C °F

FS45 C Condensing fans control delay time in free cooling 0 250 Min FS46 C Anti-Legionella cycle operation type:

0= Compressors and heaters 1= First compressors and then heaters 2= Heaters only 3= Compressors only

FS47 C Disabling of evaporator pump in domestic hot water production:

0= Enabled 1= Disabled

FS48 C Selection of probe for forced exit from domestic hot water

production: 0= Function disabled 1= Probe Pb1 2= Probe Pb2 ...

020

FS49 C Start domestic hot water temperature control:

0= On request of all steps 1= On request of first step

FS50 C Compressors deactivation setpoint during Anti-Legionella cycle -50

-58

110.0 230°C°F

FS51 C Safety time of compressor in case of domestic hot water request:

0= Safety times not observed 1= Safety times observed

FS52 C Domestic hot water low temperature setpoint -50

-58

110.0 230°C°F

FS53 C Domestic hot water low temperature proportional band 0.1025.045°C

°F

FS54 C Selection of probe for low temperature control of domestic hot

water: 0= Not used 1= Pb1 2= Pb2

....

020

FS55 C Enabling of solar panels in heatin g / integration with domestic hot

water production: 0= Not enabled 1= Integration 2= Heating

FS56 C Enabling of solar panels in heating or integration with heating:

0= Not enabled 1= Integration 2= Heating

FS57 C Selection of probe for solar panels Dt in domestic hot water

production

020

FS58 C Selection of probe for solar panels Dt in heating 0 20 FS59 C Solar panels enabling Dt in domestic hot water production 0.1025.045°C

°F

Dec Int

FS60 C Solar panels enabling Dt in heating 0.1025.045°C

°F

Dec Int

FS61 C Solar panels maximum time if set is not satisfied 0 250 Min FS62 C Selection of probe for Free cooling end due to low temperature 0 20 FS63 C Free cooling end setpoint due to low temperature -50

-58

110 230°C°F

FS64 C Free cooling end differential due to low temperature 0.1025.045°C

°F

Pr1 U User password 0 999 Pr2 S Service password 0 999

Parameter Level Description Min. Max. UM Resolution

MTA TAEevo Tech 101, TAEevo Tech 051, TAEevo Tech 081, TAEevo Tech 020, TAEevo Tech 121 Operating And Maintenance Manual

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