Carel MasterAria User Manual

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MasterAria

User manual

electronic controller

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

WARNINGS

CAREL bases the development of its products on decades of experience in HVAC, on the continuous investments in technological innovations to products, procedures and strict quality processes with in-circuit and functional testing on 100% of its products, and on the most innovative production technology available on the market. CAREL and its subsidiaries nonetheless cannot guarantee that all the aspects of the product and the software included with the product respond to the requirements of the  nal application, despite the product being developed according to start-of-theart techniques. The customer (manufacturer, developer or installer of the  nal equipment) accepts all liability and risk relating to the con guration of the product in order to reach the expected results in relation to the speci c  nal installation and/or equipment. CAREL may, based on speci c agreements, acts as a consultant for the positive commissioning of the  nal unit/application, however in no case does it accept liability for the correct operation of the  nal equipment/system. The CAREL product is a state-of-the-art product, whose operation is speci ed in the technical documentation supplied with the product or can be downloaded, even prior to purchase, from the website www.carel.com. Each CAREL product, in relation to its advanced level of technology, requires setup / con guration / programming / commissioning to be able to operate in the best possible way for the speci c application. The failure to complete such operations, which are required/indicated in the user manual, may cause the  nal product to malfunction; CAREL accepts no liability in such cases. Only quali ed personnel may install or carry out technical service on the product. The customer must only use the product in the manner described in the documentation relating to the product. In addition to observing any further warnings described in this manual, the following warnings must be heeded for all CAREL products:

prevent the electronic circuits from getting wet. Rain, humidity and all • types of liquids or condensate contain corrosive minerals that may damage the electronic circuits. In any case, the product should be used or stored in environments that comply with the temperature and humidity limits speci ed in the manual; do not install the device in particularly hot environments. Too high • temperatures may reduce the life of electronic devices, damage them and deform or melt the plastic parts. In any case, the product should be used or stored in environments that comply with the temperature and humidity limits speci ed in the manual; do not attempt to open the device in any way other than described in the • manual; do not drop, hit or shake the device, as the internal circuits and mechanisms • may be irreparably damaged; do not use corrosive chemicals, solvents or aggressive detergents to clean • the device; do not use the product for applications other than those speci ed in the • technical manual.

All of the above suggestions likewise apply to the controllers, serial boards, programming keys or any other accessory in the CAREL product portfolio.

CAREL adopts a policy of continual development. Consequently, CAREL reserves the right to make changes and improvements to any product described in this document without prior warning.

The technical speci cations shown in the manual may be changed without prior warning.

The liability of CAREL in relation to its products is speci ed in the CAREL general contract conditions, available on the website www.carel.com and/or by speci c agreements with customers; speci cally, to the extent where allowed by applicable legislation, in no case will CAREL, its employees or subsidiaries be liable for any lost earnings or sales, losses of data and information, costs of replacement goods or services, damage to things or people, downtime or any direct, indirect, incidental, actual, punitive, exemplary, special or consequential damage of any kind whatsoever, whether contractual, extra-contractual or due to negligence, or any other liabilities deriving from the installation, use or impossibility to use the product, even if CAREL or its subsidiaries are warned of the possibility of such damage.

DISPOSAL

The product is made from metal parts and plastic parts. In reference to European Union directive 2002/96/EC issued on 27 January 2003 and the related national legislation, please note that:

WEEE cannot be disposed of as municipal waste and such waste must be 1. collected and disposed of separately; the public or private waste collection systems de ned by local legislation 2. must be used. In addition, the equipment can be returned to the distributor at the end of its working life when buying new equipment; the equipment may contain hazardous substances: the improper use or 3. incorrect disposal of such may have negative e ects on human health and on the environment; the symbol (crossed-out wheeled bin) shown on the product or on the 4. packaging and on the instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately; in the event of illegal disposal of electrical and electronic waste, the 5. penalties are speci ed by local waste disposal legislation.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Contents

1. INTRODUCTION 7

2. USER 8

2.1 “Acqua” remote terminal .................................................................................8

2.2 Operating modes ..............................................................................................8

2.3 Setting the time and On/Off times (timer) ...............................................10

3. INSTALLATION 11

3.1 MasterAria and accessories ........................................................................... 11

3.2 Installation ........................................................................................................12

3.4 MasterAria panel wiring diagram ................................................................13

3.5 Connection diagrams .................................................................................... 14

3.6 “Acqua” remote terminal ...............................................................................15

3.7 Programming key (copy the conﬁ guration) .............................................16

3.8 Network connection .......................................................................................16

4. ADVANCED SETTINGS 17

4.1 Conﬁ guration.....................................................................................................17

4.2 Control algorithms ..........................................................................................23

4.3 Outlet limits ...................................................................................................... 31

4.3 Notes on settings via serial connection ....................................................34

4.4 Alarms ................................................................................................................34

4.5 Table of parameters ........................................................................................36

5. SYSTEM DIAGRAMS 42

5.1 System 1 ...........................................................................................................42

5.2 System 2 ..........................................................................................................44

5.3 System 3 ..........................................................................................................46

6. NON-HYDRONIC SUPERVISORY SYSTEMS 48

7. TECHNICAL SPECS. AND PURCHASE CODES 48

7.1 MasterAria electrical panel .............................................................................48

7.2 Main control board..........................................................................................49

7.3 Expansion board with 2 x 0-10 Vdc outputs/2 relays ..............................50

7.4 Expansion board with 4 relays (accessory) ...............................................51

7.5 Expansion board with 4 triacs (accessory) ................................................52

7.6 Expansion board with 2 triacs/2 relays (accessory) .................................53

7.7 “Acqua” remote terminal (accessory) .........................................................54

7.8 RS485 serial board (accessory) ....................................................................54

7.9 Codes .................................................................................................................55

7.10 Software revisions ..........................................................................................55

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

1. INTRODUCTION

Features of the MasterAria family:

“Acqua” remote terminal with an elegant appearance, built-in room • temperature sensor and diversi ed access to the various functions (values set using the front buttons, operating mode changed using the side buttons); Control board with high number of I/Os (5 digital inputs, 3 probes, • 5 relay outputs and dipswitches for simple con guration by the installer); Custom connection to supervisory systems with the numerous • protocols supported (Modbus®, PlantVisor); Parameter programming key (accessory);• Expansion board to control modulating 3-point or ON/OFF valves • (accessories)

MasterAria is a product designed for small air heater and air handling unit (AHU) market, for both units with outside air only and with recirculation or heat recovery units. It is used to manage a hot/cold water coil with modulating valve and modulating outside air damper or alternatively two coils with modulating valve and ON/OFF outside damper. The compact electrical panel (IP54) contains the main control board, the expansion board with 2 modulating 0 to 10 Vdc outputs and 2 relay outputs, the circuit breaker and the fan protection and control contactor. Versions are available for the control of single-phase and three-phase fan motors, with the possibility to adjust the maximum cuto current. The product can also be supplied without the electrical panel, with the

main control board and expansion board selected with 2 modulating 0 to 10 Vdc outputs and 2 relay outputs, 4 triac outputs, 2 triac outputs and 2 relays, or 4 relay outputs and the “acqua” remote terminal. The 3 outputs on the main board for controlling the fan can be used to manage single-phase 3-speed fans (the  rst output controls the contactor in the MasterAria electrical panel) and three-phase fans. The system is simple to con gure by setting the dipswitches on the main control board and the parameters on the “acqua” remote terminal; this can in fact be used to display the alarms, set the parameters and the on/ o time bands. The possibility of con gure the outputs and the availability of various expansion boards means various types of loads can be controlled, such as hot/cold water coil valves, heaters, hot and cold water signals to the chiller/heat pump and boiler, outside damper, recirculation damper and heat recovery unit damper. The RS485 serial board (accessory) can be used to create custom (PlantVisor) or open (Modbus®) supervisory systems. Finally, the pCOWeb board (accessory) can be used to connect MasterAria to a computer on an intranet, or alternatively to a save the variables and graphs to a  le that can be sent using Internet Explorer™.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

2. USER

The user interface is the “acqua” remote terminal, featuring a user-friendly liquid crystal display.

2.1 “Acqua” remote terminal

In summary:

built-in NTC sensor to control the room temperature;

•

LCD with intuitive symbols;• selection of the value displayed (temperature, set point, o set from • common set point); selective keypad lock (limited functions for o ces, hotels);• manual or automatic operation;• ON/OFF timer functions;• sleep function.•

Below is a description of the terminal and the symbols shown on the liquid crystal display:

AUTO

OFF

Fig. 2.a

butt. meaning

Air handling unit (AHU) ON/OFF. If the remote ON/OFF digital input is available, the function of the button can be disabled. Used to select the desired operating mode: cooling(snow ake), heating (sun), dehumidi cation, ventilation, AUTOMATIC. If the remote cooling/heating digital input is available, this button can be disabled. Pressing repeatedly sets the fan speed (min, med, max, automatic=AUTO).

Con rms to the changes made to the parameters.

Pressing once activates the sleep function, pressing again selects the duration of the sleep function in hours (if more than three seconds elapse from when the button was previously pressed, the function is deactivated). After pressing 9 consecutive times, the function is deactivated. Holding the button sets the current time. Pressing once selects the MasterAria ON time (changed using UP & DOWN), pressing again selects the OFF time, and pressing a third time exits the timer programming procedure.

Increase value (UP)

Decrease value (DOWN)

Tab. 2.a

Important: The fan speed can only be selected using the fan

button if parameter 118 = 0.

AUTO

OFF

123 4

56789101112

Fig. 2.b

Key:

1. sleep function

2. limited keypad function

3. active alarm

4. display value

5. fan speed in automatic mode

6. fan speed setting indicator (min/med/max)

7. fan

8. dehumidi cation

9. automatic operation

10. cooling

11. heating with heater

12. heating

13. current time

Below is a description of all the operating modes available on MasterAria. The device can in any case be recon gured by the manufacturer of the cooling/heating system or the installer (based on the features of the system), and therefore some functions may be not available.

2.2 Operating modes

Cooling

Once having switched the device on, by pressing the ON/OFF button:

Repeatedly press the MODE button until the cooling symbol • (snow ake) comes on. Set the set point (desired temperature) using the UP & DOWN

•

buttons. Repeatedly press the fan button to select the desired fan speed; if AUTO

•

mode is selected, the speed is decided by the electronic controller based on the deviation from the set point (the greater the deviation, the higher the speed).

If the COOL ENABLE function is active, the fan is started only if the coil temperature is low enough, to avoid undesired  ows of hot air. If this condition is not satis ed, the cooling symbol (snow ake)  ashes.

Fig. 2.c

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Heating

Once having switched the device on, by pressing the ON/OFF button:

Repeatedly press the MODE button until the heating symbol only (sun)

•

or the heating symbol with heater, if installed (*), comes on. In the latter case, the electric heater is also used as a source of heat; Set the set point (desired temperature) using the UP & DOWN • buttons; Repeatedly press the fan button to select the desired fan speed; if AUTO • mode is selected, the speed is decided by the electronic controller based on the deviation from the set point (the greater the deviation,

the higher the speed). If the HEAT ENABLE function is active, the fan is started only if the coil temperature is high enough, to avoid undesired flows of cold air. If this condition is not satisfied the heating symbol (sun) flashes. If the electric heater is installed (signalled by the corresponding symbol on the display), the fan continues operating for 20 seconds after it has been deactivated. This time is also maintained when switching off the device using the ON/OFF button.

with heater without heater

Fig. 2.d Fig. 2.e

(*): For the installation of the electric heater, see the paragraph on “Con guration“.

Dehumidi cation

Once having switched the device on, by pressing the ON/OFF button:

Repeatedly press the MODE button until the dehumidi cation symbol •

(droplets) comes on;

Set the set point (desired temperature) using the UP & DOWN •

buttons;

Repeatedly press the fan button to select the desired fan speed; if •

AUTO mode is selected, the fan works at minimum speed. The fan is started only if the coil temperature is low enough, so as to avoid undesired  ow of hot and humid air. If this condition is not satis ed, the dehumidi cation symbol  ashes. MasterAria starts in cooling mode so as to bring the room temperature closer to the set point (set point +3 °C) using the selected speed, and then runs fan on/ o cycles at minimum speed to decrease the humidity.

Fig. 2.f

Ventilation

This operating mode can be disabled by setting parameter 38=8. The mode may be useful for circulating the air in the room. In this case, also set the minimum opening of the outside damper (parameter 119> 0%). Once having switched the device on, by pressing the ON/OFF button:

Repeatedly press the MODE button so that only the fan symbol is on •

(at the bottom of the display) together with the corresponding speed

bar.

Repeatedly press the fan button to select the desired fan speed; if •

AUTO mode is selected, the speed is set to medium. The fan is started only if the room temperature is within the range of temperatures from 15 to 35 °C, to avoid undesired  ows of hot or cold air.

Fig. 2.g

AUTOMATIC

Once having switched the device on, by pressing the ON/OFF button:

Repeatedly press the MODE button until the AUTOMATIC symbol • comes on; Set the set point (desired temperature) using the UP & DOWN • buttons; Repeatedly press the fan button to select the desired fan speed; if AUTO • mode is selected, the speed is decided by the electronic controller based on the deviation from the set point (the greater the deviation,

the higher the speed). The operating mode (heating or cooling) is decided by the electronic controller based on the deviation from the set point: if the room temperature is higher than the set point, the controller activates cooling mode, while if it is lower heating mode is activated. The fan is started only if the coil temperature is suitable for the heating or cooling functions.

AUTOMATIC mode

AUTO

MAN

OFF

Fig. 2.h

Comfort

In some systems, the set point is decided by the manager of the installation; in these cases, the user may increase or decrease the set point by up to 3 °C to compensate for di erent perception of the room temperature. The value is changed by pressing the UP and DOWN buttons and is displayed for 5 seconds, after which the previous display resumes.

AUTOMATIC mode

with comfort active

comfort variation

AUTO

MAN

OFF

AUTO

MAN

OFF

Fig. 2.i Fig. 2.j

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Sleep

The sleep function is especially useful at night, when the decrease in body temperature (due to sleep) changes the perception of the room temperature. In cooling mode the set point is increased by the value of the parameter 18 for the number of hours speci ed on the display, after which MasterAria returns to the previous situation (the sleep function is cancelled). In heating mode the set point is decreased by the value of parameter

19.

To set the sleep function:

Switch the device on using the ON/OFF button and select the

•

operating mode; Press the clear button repeatedly until setting the required number of •

hours for the function. To cancel this function, press the clear button again, after having waited 3 seconds from when the button was last pressed, or pressing the button more than once until exceeding the maximum number of hours, that is,

9. Sleep operation can be activated by a digital input that has been con gured accordingly. In this case, the function is called “economy” (see the paragraph on “Digital inputs“).

Remote o

Activated when dipswitch 3 = ON

When the remote o symbol (lock) is shown the operating mode is set to AUTOMATIC (with heater, if installed) and the user can: switch the unit on/ o , modify the set point and set the fan speed; the other functions are not available.

AUTO

MAN

OFF

Fig. 2.k

Disabling the operating modes

Parameter 38 is used to reduce the number of operating modes available on the “acqua” terminal. The setting is achieved by adding the values shown below, each of which corresponds to disabling the corresponding mode.

1 AUTOMATIC 2 cooling 4 dehumidi cation 8 ventilation 16 heating 32 autofan (see corresponding paragraph) 64 sleep 128 ON/OFF timer & time display

2.3 Setting the clock and On/O times (timer)

Setting the time

MasterAria o ers the possibility to perform programmed starts and stops if the room only needs to be air-conditioned at certain times of the day. To be able to use these functions, the internal clock needs to be set with the correct time, as shown below:

Hold the timer button for 5 seconds (the clock icon appears);1. Set the time using the UP and DOWN buttons (the time  ashes);2. Con rm by pressing the SET button (the time is displayed steady).3.

AUTO

MAN

Fig. 2.l

Important: In the event of power failures, the time returns to

12:00 and must be set again. The time display can be disabled by

setting parameter 38=128.

Setting the on and o times

Press the TIMER button once;• Set the required ON time with the UP and DOWN buttons (the time •  ashes); Con rm the time with the “set“ button (the symbol is on steady and the •

current time is displayed): the clock icon is shown with the text ON. The OFF timer is set in the same way as the ON timer, with the di erence that the TIMER button must be pressed twice.

Important: In the event of power failures, the timer values are

lost and must be reset.

The ON/OFF timer functions remain active even after the corresponding On/O event has occurred; to disable these functions proceed as follows:

Press the timer button: once to disable the timer ON or twice to disable

•

the timer OFF (the time  ashes);

Press the “clear” button (the related symbol disappears).

•

on time set: timer ON o time set: timer OFF

AUTO

MAN

OFF

AUTO

MAN

OFF

Fig. 2.m Fig. 2.n

Notes: the On/O times can be set independently.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

3. INSTALLATION

In summary:

easy con guration by dipswitches;

•

possibility of control with intake/return probe or probe on the “acqua” • terminal; possibility to create supervisor networks using the RS485 serial board • (accessory).

3.1 MasterAria and accessories

Below is a description of the family of devices made up of MasterAria and its accessories:

Electrical panel

• CTEM7*: Single-phase version

• CTEDB*: Three-phase version

The electrical panel contains the main control board plus the expansion board with 2 x 0 to 10 Vdc outputs and 2 relay outputs. It is also  tted with a disconnect switch, a power contactor for the fan and a circuit breaker

Fig. 3.a

MasterAria main control board (code HYCT000000)

Manages the fan and controls the temperature. Allows the connection of digital inputs for the remote control of functions such as ON/OFF, cooling/heating, economy (see sleep function) etc. Fitted, using the special accessory, with a serial port for the network connection of a series of units (supervisory system).

Fig. 3.b

Expansion board with analogue/relay outputs (code HYVC000V00)

Allows MasterAria to control two actuators with 0 to 10 Vdc inputs (e.g.: modulating valves, etc.) and control any additional loads using to the two multifunction relays.

Fig. 3.c

Expansion board with 4 relays (code HYVC000R00)

Allows MasterAria to manage ON/OFF actuators (valves, heaters, dampers) and the hot and cold water signals to the chiller and heat pump/boiler).

Fig. 3.d

Expansion board with 2 triac/relay outputs (code HYVC000M00)

Allows MasterAria to control loads with a high number of operations (e.g.: modulating 3 point valves, etc.) using the 2 triac outputs with voltage signal (230 Vac) and directly control a 2 kW heater. A second multifunction relay is available for any additional loads.

Fig. 3.e

Expansion board with 4 triacs (code HYVC000T00)

Allows MasterAria to control loads with a high number of operations (e.g.: modulating 3 point valves, etc.) using the 4 triac outputs with voltage signal (230 Vac).

Fig. 3.f

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MasterAria +030220481 - rel. 1.0 - 12.11.2007

RS485 serial board (code HYSC00F0P0, accessory)

Used to create custom (PlantVisor) or open (Modbus®) supervisory systems.

Fig. 3.g

Programming key (code PSOPZKEY00, accessory)

Used to simply export the con guration of the parameters from one MasterAria to another. PSOPZKEYA0 is the version with power supply.

Fig. 3.h

Adapter for MasterAria programming key (code HYKA000000, accessory)

To be used together with the programming key PSOPZKEY00.

Fig. 3.i

“Acqua” LCD terminal for MasterAria (code HYPA001000, accessory)

Allows the user to set the operation of MasterAria and display the alarms. The LCD ensures straightforward and user-friendly operation. In addition, it is  tted with an NTC sensor that can be used for room temperature control.

Fig. 3.j

3.2 Installation

The electrical panel can be wall-mounted or installed in the air handling unit.

Wall-mounting and dimensions:

Identify the correct position on the wall, drill 4 holes, according to the drawing, and insert the plugs.

200

190

162,5

Ø 3

87,3 19,3

240

235

218,5

Wall mounting

FrontBack

Panel mounting

Fig. 3.k

Move the main switch on the panel to the OFF position and:

remove the top and bottom covers, and, without removing the front

cover, insert the screws and fasten the panel to the wall; now unscrew the 4 inside screws and remove the front cover to access 2. to the electrical connections.

power supply fan, actuators

probes, digital inputs

Fig. 3.l

Note: separate the power supply connections and the load cables from the probe and digital input cables.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Structure

single-phase model three-phase model

5 mm

195 mm

QS1

QF1

KR1

235 mm

195 mm

QS1

QF1

KM1

Fig. 3.m.a Fig. 3.m.b

Key: A1

Main control board

Expansion board

KR1-KM1

Contactor

QS1

Main switch

QF1

Circuit breaker

Installing the boards and dimensions

The control kit consists of the main control board, an expansion board and the “acqua” terminal.

This is fastened to the electrical panel that controls the AHU using 4 plastic spacers (manufacturer RICHCO, code LCBS-8-01) inserted in the holes on the four corners of the main control board..

3.4 MasterAria panel wiring diagram

MasterAria single phase

LL N

DI5 B1 B2 B3

DIP

N N GN Tx V+ GN Tx DI1 DI1 DI2 DI2 DI3 DI3 DI4 DI4NO3 NO2 NO1

GN NO4 GN NO5

NO7 NO7NO6 NO6

HYCT000000 MasterAria controller

HYVC000V00 valve board

FLAP EXP IR

POWER SUPPLY 1P+N+T 230V ~ 50 Hz

MACHINE LIMIT

FAN

QF1

QS1

FU1

KR1

Fig. 3.o

HYCT0*

160

Hole: Ø 4,75 board thickness: 1,6 mm

160

150

14,2

2,5

7,1

5,6

10,2

5,6

2,8

12,7

Fig. 3.n

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

MasterAria three phase

LL N

DI5 B1 B2 B3

DIP

N N GN Tx V+ GN Tx DI1 DI1 DI2 DI2 DI3 DI3 DI4 DI4NO3 NO2 NO1

GN NO4 GN NO5

NO7 NO7NO6 NO6

HYCT000000 MasterAria controller

HYVC000V00 valve board

FLAP EXP IR

POWER SUPPLY 3P+N+T 400V ~ 50 Hz

MACHINE LIMIT

FAN

QF1

FU1

QS1

123456

KM1

03.4

Fig. 3.p

Key: A1

Main control board

Expansion board

KR1-KM1

Contactor

QS1

Main switch

QF1

Circuit breaker

Fan

FU1

Fuse

3.5 Connection diagrams

MasterAria connection diagram

LL N

DI5 B1 B2 B3

DIP

remote OFF

SAFETY

summer/ winter

N N GN Tx V+ GN Tx DI1 DI1 DI2 DI2 DI3 DI3 DI4 DI4NO3 NO2 NO1

GN NO4 GN NO5

NO7 NO7NO6 NO6

valve

0...10 Vdc

valve

0...10 Vdc

contact contact

serial communicatio

HYCT000000 MasterAria controller

HYPA0010*

HYVC000V00 valve board

FLAP EXP IR

Fig. 3.q

Important: Digital inputs 1 and 2 have a  xed con guration.

Digital inputs 3, 4, 5 can be con gured.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Expansion board (accessories)

DI5 B1 B2 B3

DIP

N N

No3 No2 N

No7N

No6

EXP

SUPPLY

EXP

HYCT000000

HYVC000T00

No5

N No4

Fig. 3.r.a

DI5 B1 B2 B3

DIP

N N

No3 No2 N

No7

No7No6

No6

EXP

SUPPLY

EXP

10 A (res)2 A (res)

HYCT000000

HYVC000M00

No5

N No4

Fig. 3.r.b

DI5 B1 B2 B3

DIP

N N

No3 No2 N

No7No7

No6No6

EXP

SUPPLY

EXP

HYCT000000

HYVC000R00

No5

NNNo4

Fig. 3.r.c

Key:

multifunction voltage output (triac)

multifunction relay output

For the con guration of the inputs and outputs, see the paragraph on “Con guration“. For the technical speci cations of the components, see the chapter: “Technical speci cations and purchase codes”.

3.6 “Acqua” remote terminal

Avoid installing the terminal in places where the room temperature measurement may be altered: outside walls, near doors leading to the outside, exposed to the sun, etc. (the terminal should be fastened to the wall in a horizontal position so as to allow the recirculation of air through the slits on the rear cover fastened to the wall). The terminal is  tted inside the plastic case and is only accessible by removing the rear shell (see the following  gure).

Terminal assembly and dimensions

bottom view: opening tab;1. fastening holes.2.

Fig. 3.s.a

Fig. 3.s.b

135 30

Fig. 3.s.c

For the connection see the connection diagram. If the temperature measured by the built-in sensor needs to be corrected (due to installation in a position that is not ideal) a  xed value in degrees centigrade can be added or subtracted (see parameter 61 in the table of parameters).

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

3.7 Programming key (copy the con guration)

Once having set the parameters (see the paragraph on “Con guration“), the con guration can be quickly copied to other MasterAria controllers using the programming key.

Proceed as follows:

switch o the previously programmed MasterAria (source);

set the dipswitches inside the programming key (underneath the 2. battery cover) to reading mode (dip 1= OFF, dip2= OFF ); insert the key in the 4-pin connector on the adapter, and connect the 3. 8-wire cable supplied (see Fig. 3.t); insert the 8-wire cable from the programming key adapter to the IR 4. connector on the board; press the button. The red LED and then the green LED come on in 5. succession, if the operation has been completed successfully. Other signals indicate problems (see the corresponding instruction sheet); remove the key and the adapter; set the dipswitch to write mode (dip 6. 1= OFF, dip2= ON ) and repeat steps 3, 4, 5, 6 to write the data to the target MasterAria;

Important: to avoid excessively discharging the batteries in the

programming key, disconnect the normally closed digital inputs on MasterAria. If this is not possible, use the key with the power supply. The MasterAria parameters (source) can be copied to target devices with the same or later software version.

Fig. 3.t

3.8 Network connection

A series of MasterAria devices can be connected via network to a supervisor computer. In this case, a di erent address needs to be set for each device (parameter 69= Supervisory network address).

RS485

MasterAria 1 P69 = 1

MasterAria 2 P69 = 2

MasterAria 3 P69 = 3

Fig. 3.u

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

4. ADVANCED SETTINGS

In summary:

fan speed control;

•

algorithm to overcome the phenomenon of air strati cation;• antifreeze alarm management di erentiated according to the type of • unit; manual operation: cooling, heating (optional heater management), • dehumidi cation, ventilation; automatic operation (optional heater management);• room set point compensation with outside temperature reading;• economy function: possibility to use a second set point if the • environment is not occupied (energy saving); the Economy function is the same as sleep, with the di erence that it is activated/deactivated by digital input; control of ON/OFF or modulating valves and dampers: three-point or • with 0 to 10 Vdc input.

MasterAria provides a number of additional functions compared to traditional controllers: 2 digital inputs for remote ON/OFF and cooling/ heating management, 3 con gurable digital inputs, 3 probes, 4 con gurable outputs, 6 dipswitches for rapid customisation on site, possibility of network connection for supervision. MasterAria comes with a family of accessories (see the table of codes) including: the “acqua” terminal (with built-in NTC sensor), the expansion boards with 4 relay outputs, 4 triac outputs, 2 triac outputs and 2 relay outputs, the RS485 serial board. The following section shows, in sequence, the description of the parameters, from the con guration of the I/O to the setting of the control algorithms. The list of parameters is shown at the end of the section.

4.1 Con guration

To select the type of air handling unit (AHU)/air heater unit, proceed as follows:

connect the appropriate expansion board, if the board supplied is not • suitable for the actuators used (the board supplied with the MasterAria electrical panel has two 0 to 10 Vdc outputs and two relay outputs, see the wiring diagram); set the dipswitches on the main control board;• select the type of prede ned unit (parameter P91) that best suits the • application; on the “acqua” terminal, set the parameters for the inputs/outputs that • di er from the chosen con guration.

Important: if the AHU is OFF from digital input, the device cannot

be con gured on the acqua terminal.

Outputs

The triac output should be preferred over the relay output when the actuator requires continuous switching (open/closed), as is the case with modulating 3-point valves.

Important: Do not set outputs with option < = 6 and >6 at the

same time. This is because outputs with option > 6 automatically imply the activation of the P+I algorithm, which is not suitable for the on/ o outputs: options 1,2,5,6. In any case, the following outputs can be used: chiller activation signal, boiler-heat pump activation signal and alarm. Only one output can be set as a heater.

Example:

MasterAria with board with two 0 to 10 Vdc outputs and 2 relay outputs:

incorrect correct

P39 =13 P39 =13 P40 =21 P40 =21

P41 =6 P41 =18

P42 =24 P42 =24

Tab. 4.a.a

Important:

The outputs that are not used must be deactivated (option 0).

Table of outputs

Output Description

Assoc.

pars.

Control

board

NO1 Voltage output (L) for minimum fan speed

NO2 Voltage output (L) for medium fan speed

NO3 Voltage output (L) for maximum fan speed

Expansion

board

NO4 Multifunction output (see DIP4) P39 NO5 Multifunction output (see DIP4 & DIP5) P40 NO6 Multifunction output P41 NO7 Multifunction output P42

Tab. 4.a.b

The following summary table de nes the type of output for each type of expansion board available.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Summary table of MasterAria options

Accessory Accessory

Supplied with MasterAria

electrical panel

Accessory

Setting

P39, P40, P41, P42

Expansion board w/ 4 relays

HYVC000R00

Expansion board w/ 4 triacs

HYVC000T00

Expansion board w/ 0 to 10

Vdc + relays

HYVC000V00

Expansion board w/ 2 triacs

+ 2 relays

HYVC000M00

NO4

(volt.

relay)

NO5

(volt.

relay)

NO6

(relay)

NO7

(relay)

NO4 (volt. triac)

NO5 (volt. triac)

NO6 (volt. triac)

NO7 (volt. triac)

NO4

(0-10

Vdc)

NO5

(0-10

Vdc)

NO6

(relay)

NO7

(relay)

NO4 (volt.

triac)

NO5 (volt. triac)

NO6

(relay

2 A)

NO7 (relay 10 A)

0 Output disabled

ON/OFF cold water valve (norm. open)

√√√√√√√√ √√√√√√

ON/OFF hot water valve (norm. open)

√√√√√√√√ √√√√√√

Chiller activation signal, cold water request (norm. open). Contact closed with cold/hot water valve or cold water valve only active (open with valve deactivated)

√√√√√√√√ √√√√√√

Boiler, heat pump activation signal, hot water request (normally open). Contact closed with cold/hot water valve or hot water valve only active (open with valve deactivated)

√√√√√√√√ √√√√√√

ON/OFF hot/cold water valve (normally open). Activated with cooling/ heating request from controller. O when are both deactivated

√√√√√√√√ √√√√√√

ON/OFF heater(normally open) (set parameters P46 & P13)

√√√√√√√√ √√√√√√

7 Alarm (normally open) √ √ √√√√√√ √√√√√√ 8 DO NOT SELECT

3-point valve + (clockwise) for cold water (hot/cold water if dip4=OFF)*

√√√√ √√

3-point valve (anticlockwise) for cold water (hot/cold water if dip4=OFF)*

√√√√ √√

3-point valve + (clockwise) for hot water (deactivated if dip4=OFF) *

√√√√ √√

3-point valve (anticlockwise) for hot water (deactivated if dip4=OFF) *

√√√√ √√

Valve with 0 to 10 Vdc input for cold water (hot/ cold water if dip4=OFF) *

√√

Valve with 0 to 10 Vdc input for hot water (deactivated if dip4 =OFF) *

√√

15 DO NOT SELECT 16 DO NOT SELECT

0 to 10 Vdc output for modulating heater control (from external module). Set parameters P111, P117.*

√√

Output (triac or relay) for man. of ON/OFF heaters (with hysteresis) on P+I. Set parameters P111, P112.*

√√√√√√√√ √√√√√√

Open 3-point outside damper*

√√√√

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Accessory Accessory

Supplied with MasterAria

electrical panel

Accessory

Setting

P39, P40, P41, P42

Expansion board w/ 4 relays

HYVC000R00

Expansion board w/ 4 triacs

HYVC000T00

Expansion board w/ 0 to 10

Vdc + relays

HYVC000V00

Expansion board w/ 2 triacs

+ 2 relays

HYVC000M00

NO4

(volt.

relay)

NO5

(volt.

relay)

NO6

(relay)

NO7

(relay)

NO4 (volt. triac)

NO5

(volt.

triac)

NO6 (volt. triac)

NO7 (volt. triac)

NO4

(0-10

Vdc)

NO5

(0-10

Vdc)

NO6

(relay)

NO7

(relay)

NO4 (volt.

triac)

NO5 (volt. triac)

NO6

(relay

2 A)

NO7 (relay 10 A)

Close 3-point outside damper*

√√√√

0 to 10 Vdc outside damper

√√

22 DO NOT SELECT 23 ON/OFF outside damper √ √ √√√√√√ √√√√√√

ON/OFF recovery bypass damper

√√√√√√√√ √√√√√√

(*) The P+I parameters need to be set

Tab. 4.a.c

Setting the dipswitches

The default setting of all the dipswitches on the main control board is o . Set the dipswitches based on the application.

Dipswitch Setting Notes

1 ON = enable heat/cool enable

functions (probe B2 on coil). Probe B3 enabled only when DIP1=ON e DIP4= ON; OFF = heat/cool enable function disabled

2 ON = enable digital input 2 for

cooling/heating changeover

for operation of the function see par. P56: 0 N.C.=Heating,

N.O.=Cooling

1 N.C.=Cooling,

N.O.=Heating OFF = disable digital input 2 for cooling/heating changeover

3 ON = remote lock active functions disabled:

ON/OFF timer, Sleep. AUTOMATIC operation override

OFF = remote lock not active

4 ON = AHU with 2 water coils

OFF = AHU with 1 water coil

5 ON = electric heater  tted

OFF = electric heater not  tted

6 ON = control probe is probe on

“acqua” terminal (BT) OFF = control probe chosen from B1, B2 or B3 (must also correspond to P15, P16 or P17=5)

Tab. 4.b

Setting the parameters

To display and set the parameters, with device OFF, press the “MODE“ and “clear“ buttons for 5 seconds and enter the password 22 using the “UP” and “DOWN” buttons. Con rm by pressing “set“. This accesses the user parameters only (U in the table of parameters).

AUTO

MAN

ON OFF

HR HR HR

AUTO

MAN

OFF

HR HR

AUTO

MAN

ON OFF

Fig. 4.a

To display and set the manufacturer parameters (F in the table of parameters), access the programming menu as described above, and enter the second password (PASSWORD = 66) for parameter P92.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Automatic con guration of the inputs/outputs and type of unit (parameter 91)

To simplify con guration, one of the three automatic con gurations can be used (columns “Def1, 2, 3” in the table of parameters):

Switch the device o by pressing the ON/OFF button;

•

Set parameter 91 according to the values shown in the table below.•

Inputs &

Outputs

P91=44 AHU 100% outside air

0-10 V valves

P91=45

AHU with recirculation 0-10 V valves

P91=46

AHU with

recirculation

3-point valves

Main board

ID1 ON/OFF ON/OFF ON/OFF ID2 Cooling/Heating Cooling/Heating Cooling/Heating ID3 Serious alarm Serious alarm Serious alarm ID4 Antifreeze alarm Antifreeze alarm Antifreeze alarm ID5 Filter alarm Filter alarm Filter alarm

B1 Outlet temperature Outlet temperature Outlet temperature

Heating coil temperature

Heating/cooling coil temperature

Heating coil temperature

Outside temperature

NO1

Single-speed outlet fan

Single-speed outlet

fan NO2 Disabled Disabled Disabled NO3 Disabled Disabled Disabled

Expansion board

NO4 Cool valve

Heating / cooling valve

Open heating /

cooling valve

NO5 Heat valve Outside air damper

Close heating /

cooling valve

NO6 Outside damper Electric heater

Open outside air

damper

NO7 Disabled Bypass damper

Close outside air

damper

Tab. 4.c

Note:

• The con gurations corresponding to P91 = 44 and P91 = 45 require the expansion board with two 0 to 10 Vdc outputs (standard in the MasterAria electrical panel), while the con guration corresponding to P91 = 46 requires the expansion board with 4 triacs. Check that the corresponding inputs and outputs are enabled by • dipswitch. For example, once having set P91=44, check that dipswitch 4=ON (see the previous paragraph). Once parameter 91 has been set, the individual settings for the speci c • application can be changed using the parameters corresponding to the inputs/outputs (see the following paragraphs).

Identifying/setting the model of unit (parameter 124)

Once automatic con guration has been completed, make sure that MasterAria recognises the type of AHU being managed.

The main setting involves the type of AHU:

100% outside air;• recirculation.•

This is set using parameter P124:

P124=0 AHU 100% outside air

Fig. 4.b.a

The AHU with 100% outside air has just one air inlet, that is, from the outside, and the air in the environment is no recirculated. In this case, when

the antifreeze alarm is active the controller stops the fan and switches o the optional electric heater.

P124=1 AHU with recirculation

Fig. 4.b.b

In this case, the AHU, as well as taking in air from the outside, recirculated the air in the environment. The antifreeze function does not stop the fan and, if an electric heater is  tted, this is not switched o .

Important:

The incorrect con guration of this parameter may cause damage

to the AHU!

Con guration of an AHU with heating/cooling coil only (dipswitch 4 = OFF)

- Con guration with P91=45

MasterAria does not distinguish between coils for heating or cooling only and mixed coils. The distinction is made by the user, by setting the proportional bands accordingly.

Par Description Def2

39 Con guration of output NO4 13 = Valve with 0 to 10 Vdc input for

cold water (hot/cold water if dip4 = OFF)

40 Con guration of output NO5

(see P39)

21 = 0 to 10 Vdc outside damper

41 Con guration of output NO6

(see P39)

18 = Output (triac or relay) for man. of ON/OFF heaters (with hysteresis) on P+I. Set parameters P111, P112.

42 Con guration of output NO7

(see P39)

24 = ON/OFF recovery bypass damper

Tab. 4.d.a

If a modulating valve is used, operation is established by the parameters relating to the proportional bands.

In any case, dipswitch 4 must be OFF.

Coil model Parameters

Heating/Cooling P115=xx / P116=xx Heating only P115=0 / P116=xx Cooling only P115=xx / P116=0

Tab. 4.d.b

Par Description Def1 Def2 Def3 Min Max UOM

115

Proportional band for cooling valve

40 40 40 0 255 °C /10

116

Proportional band for heating valve

40 40 40 0 255 °C /10

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Con guration with electric heater

MasterAria can manage an electric heater with ON/OFF or proportional 0 to 10 Vdc control.

For con guration:

dipswitch 4 = OFF, if a 0 to 10 Vdc signal is used (AHU with 1 coil only,

so the other output, NO4 or NO5, is not occupied); dipswitch 5 = ON and con gure the output with the parameters P39, 2. P40, P41, P42. Press the MODE button until the display shows the heater icon.3.

Fig. 4.c

Important:

Outputs NO4 and NO5 are available for the modulating 0 to 10 Vdc heaters. Outputs NO6 and NO7 are available for ON/OFF heaters and have voltage-free contacts.

Important:

During the antifreeze alarm, only in the case of AHUs with recirculation, the heater remains on until the temperature returns to normal values. This applies to the modulating 0 to 10 Vdc (P39=17) or ON/OFF heater (P39=18), but not the ON/OFF heater with option P39=6.

Selecting the electric heater

ON/OFF heater

There are 2 possibilities:

set P39=18 (or P40, P41, P42)• Also set P111 (heater activation delta from set point) and P112 (hysteresis);

set P41=6 (or P42)

•

Also set P46 (heater activation delta from set point) and P13 (hysteresis).

Modulating heater

Set P39 = 17 (or P40 =17);• Set P111 = heater activation delta and P117 = heater proportional • band.

Probes

The reading of the probes is a ected by their position due to the phenomenon of air strati cation. To overcome this problem, o sets can be speci ed depending on the operating mode (heating or cooling). Faults with the control probe or the probe on one of the two heat exchangers cause the fan to stop and the valve to close. The control probe is selected by dipswitch. It must be remembered that MasterAria performs control based on the room temperature (intake/return probe or sensor on the “acqua” terminal).

Recommended con guration

probe description

associated parameters

notes

Intake-return probe/ Outside probe (compensation)

P22, P58, P59, P60

When DIP6 OFF & P22=0: room

control probe. B2 Heating coil probe P62, P63 B3 Cooling coil probe P64, P65

BT Probe on terminal P61

When DIP6 ON =

room cont. probe.

Tab. 4.e.a

Prog Description Def1 Def2 Def3 Min Max UM

15 Function of probe B1

0 use de ned by

dipswitch 6 & P22 1 probe disabled 2 heating/cooling coil

probe 3 cooling coil probe 4 heating coil probe 5 control probe

(intake/return) 6 outside probe 7 outlet probe

7 7 7 0 7 ---

16 Function of probe B2

(see P15)

4 2 2 4 7 ---

17 Function of probe B3

(see P15)

6 6 6 0 7 ---

22 Select optional

compensation probe

0 Compensation

disabled 1 Compensation

enabled on

B1 = outside probe 2 Compensation

enabled on

B3 = outside probe

0 0 0 0 2 ---

58 probe B1 o set in

cooling

0 0 0 -99 127

°C/10

59 probe B1 o set in

heating

0 0 0 -99 127

°C/10

60 probe B1 o set in

AUTOMATIC

0 0 0 -99 127

°C/10

61 probe BT o set from

terminal

-30 -30 -30 -99 127

°C/10

62 probe B2 o set in

cooling

0 0 0 -99 127

°C/10

63 probe B2 o set in

heating

0 0 0 -99 127

°C/10

64 probe B3 o set in

cooling

0 0 0 -99 127

°C/10

65 probe B3 o set in

heating

0 0 0 -99 127

°C/10

Tab. 4.e.b

CTA

Fig. 4.d

Key: AHU air handling unit R intake/return M outlet

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Digital inputs

Digital inputs DI1 and DI2 have a  xed con guration, while the others can be con gured by parameter. The o status of digital input DI1 has priority over any incoming serial communication signals, so that the user (directly in contact with the  ow of cold or hot air) can switch the MasterAria unit o .

Input Description Ass. pars. Notes

DI1 ON/OFF input when the input is closed the unit is switched to OFF status (even when there is no network connection). When

switching OFF->ON, MasterAria is started however it can then be switched o from the terminal or via serial

connection. In OFF status, the valve is closed and the fan is o (after any extra  ush cycles required for the heater) DI2 cooling/heating Enabled when DIP2= ON DI3 multifunction P43 DI4 multifunction P44 DI5 multifunction P45

Tab. 4.f.a

Prog Description Def1 Def2 Def3 Min Max UOM

43 Con guration of digital input 3

0 input disabled 1 economy (norm. open) (*) 2 window alarm (norm. open): stops the fan and closes the valve 3 DO NOT SELECT 4 DO NOT SELECT 5 local stop (generic alarm, norm. open): stops the fan and closes the valve 6 economy (norm.closed) 7 window alarm (norm. closed) 8 DO NOT SELECT 9 DO NOT SELECT 10 local stop (generic alarm, normally closed): stops the fan and closes the valve 11 enable antifreeze by time (normally open) 12 enable antifreeze by time (normally closed) 13 dirty  lter alarm from di erential pressure switch (normally open) 14 dirty  lter alarm from di erential pressure switch (normally closed)

10 10 10 0 14 ---

44 Con guration of digital input 4 (see P43) 12 12 12 0 14 --45 Con guration of digital input 5 (see P43) 14 14 14 0 14 ---

(*) the “economy” function corresponds to the “sleep” function, however is activated by digital input.

Tab. 4.f.b

Important: avoid parameter settings that create situations of

con ict (for example, do not con gure two digital inputs on the

same MasterAria as economy inputs).

Procedure for testing the installation

Once the installation has been completed, the test procedure can be run to check the devices. The “acqua” terminal is required for these functions. To enter test mode press the UP and DOWN buttons for 10 seconds with the unit connected to the power supply and in OFF status; the event is signalled by the buzzer, which emits a beep. The test proceeds in steps, indicated on the terminal by the message “L” followed by an incremental number; pressing the UP button proceeds to the next step (signalled by the BEEPING of the buzzer). After the last step, the procedure ends and the controller returns to normal operation.

step part tested message  ashing message not  ashing

“L01” probe B1 probe error probe Ok “L02” probe B2 probe error probe Ok “L03” probe B3 probe error probe Ok “L04” digital input 1 input open input closed “L05” digital input 2 input open input closed “L06” digital input 3 input open input closed “L07” digital input 4 input open input closed “L08” digital input 5 input open input closed “L09” fan started at minimum speed, no internal test “L10” fan started at medium speed, no internal test “L11” fan started at maximum speed, no internal test “L12” output NO4 relay activated, voltage present (L). No internal test “L13” output NO5 relay activated, voltage present (L). No internal test “L14” output NO6 relay activated, contact closed. No internal test “L15” output NO7 relay activated, contact closed. No internal test During operation (and during the test procedure), the device may generate alarm signals, which are displayed on the terminal.

Tab. 4.g

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

4.2 Control algorithms

In summary

general functions: Heat enable, Cool enable, Flush, Extra Flush, P+I • temperature control, Freecooling, Freeheating, outlet limit control, fan management, Autofan or continuous fan operation. manual operation: cooling, heating (optional heater management), • dehumidi cation, ventilation; automatic operation: heating (optional heater management) and • cooling; set point compensation using outside probe;• On/O timer (1 time band) and “sleep” function;• control of ON/OFF or modulating actuators.•

Below is a description of the operation of MasterAria, divided into general functions, manual and automatic functions.

Heat enable (heating/AUTOMATIC heating)

(parameters 10,11,12,13)

In order to avoid undesired  ows of cold air, the fan is only operated if the temperature of the main coil (e.g. probe B2) is high enough. If this condition is not satis ed the heating symbol (sun)  ashes.

DIPSWITCH1 must be set to ON. The fan speed allowed (limiting the request by the control algorithm) is described in the following graph.

P13

TB (°C)

OFF

min.

medium

max.

FAN

P10 P11 P12

P13

Fig. 4.e

Key

FAN fan speed TB heating coil temperature

When reaching the set point, the hot/cold water or hot water valve only is closed and the fan is stopped.

Par. Description Def1 Def2 Def3 Min Max UOM

P10 Temperature to enable minimum fan speed in heating/AUTOMATIC heating 29 29 29 0 255 °C P11 Temperature to enable medium fan speed in heating/ AUTOMATIC heating 33 33 33 0 255 °C P12 Temperature to enable maximum fan speed in heating/AUTOMATIC heating 37 37 37 0 255 °C P13 -Hysteresis to enable fan in heating/AUTOMATIC heating, cooling, AUTOMATIC cooling

-Heater hysteresis (P39=6)

10 10 10 0 255 °C/10

P55 Enable cooling & heating symbols in AUTOMATIC

0= symbols o 1= symbols on when called

00001---

Tab. 4.h.1

Important:

Cool enable (cooling/AUTOMATIC cooling, dehumidi cation)

(parameters 13,14)

In order to avoid undesired  ows of hot air, the fan is operated only if the temperature of the coil is low enough. If this condition is not satis ed the cooling symbol (snow ake)  ashes. DIPSWITCH1 must be set to ON. The fan speed is managed by the control algorithms or set manually.

TB (°C)

OFF

FAN

P14

P13

Fig. 4.f

Key

FAN fan TB cooling coil temperature

The heat enable function must be disabled if modulating actuators are used (0 to 10 Vdc or 3-point).

When reaching the set point, the hot/cold water or cold water valve only is closed and the fan is stopped.

Par. Description Def1 Def2 Def3 Min Max UOM

13 - Hysteresis to enable fan in heating/AUTOMATIC heating, cooling, AUTOMATIC cooling

- Heater hysteresis (P39=6)

10 10 10 0 255 °C/10

14 Temperature to enable fan in cooling/ AUTOMATIC cooling e dehumidi cation 21 21 21 0 255 °C 55 Enable cooling & heating symbols in AUTOMATIC

0= symbols o 1= symbols on when called

00001---

Tab. 4.h.2

Important: The cool enable function must be disabled if modulating actuators are used (0 to 10 Vdc or 3-point).

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Flush (fan on/o cycles)

(parameters 32,33,34)

Note: Function active only if the control probe is not probe BT on

the “acqua” terminal.

To overcome the phenomenon of air strati cation, MasterAria operates fan on/o cycles at minimum speed, even when the room temperature has reached the set point (the local/hot/cold valve remains closed). This helps ensure the correct measurement of the room temperature if the sensor on the acqua terminal is not used (e.g.: control probe = B1). The behaviour can be modi ed depending on the operating mode: heating, cooling, dehumidi cation or AUTOMATIC. The fan is started after a period of inactivity (due to the set point having been reached),

equal to the value of parameter P32.

OFF

P32

min.

FAN

P33 P32 P33

Fig. 4.g

Key

FAN fan t time

Par. Description Def1 Def2 Def3 Min Max UOM

32 Flush o time

0 Disabled >0 Fan o time

2 2 2 0 255 min

33 Flush on time

0 Disabled >0 Fan on time

90 90 90 0 255 s

34 Flush mode

0 Function disabled 1 Flush function active in cooling, dehumidi cation & AUTOMATIC 2 Flush function active in heating & AUTOMATIC OFF(*) 3 Flush function active in heating, cooling, dehumidi cation & AUTOMATIC OFF(*)

00003---

AUTOMATIC OFF(*)= unit in automatic mode and o because the temperature measured by the control probe is inside the dead band (P109) around the set point

Tab. 4.h.3

Extra Flush

(parameter 35)

Note: Function active only if the control probe is not probe BT on

the “acqua” terminal.

This function ensures correct operation when the acqua terminal is not  tted (e.g.: control probe = B1), overcoming the phenomenon of air strati cation. Whenever switching from OFF->ON or changing operating mode, MasterAria runs a fan cycle at minimum speed (for the time P35) to make sure the room temperature is uniform. At the end of this interval, normal operation resumes. This is especially useful in the event of automatic operation.

Fan operating modes

(parameter 118)

The MasterAria can manage 3 types of fan operation:

3 speed:

• the fan stops when reaching the set point, (temperature

measured by the control probe inside the dead band). In this mode, one of the three speeds (min., med., max.) can be set manually, by pressing the fan button, or alternatively AUTOFAN, with automatic management of the speed by the controller.

Fig. 4.h

Manual fan speed setting

min. med. max.

Fig. 4.i.a

Automatic fan speed setting –AUTOFAN function (see the corresponding paragraph)

AUTO

Fig. 4.i.b

Minimum speed:• the fan only works at minimum speed, stopping

when reaching the set point (control temperature inside the dead band, P109).

Constant single speed: • fan operating continuously at single speed,

except in the event of alarms or when the AHU is shut down.

Par Description Def1 Def2 Def3 Min Max U.M

118 Fan mode

0 3 speed 1 minimum speed 2 continuous single-

speed (normally used for AHUs)

22202---

Tab. 4.h.4

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

OFF

P35

OFF

CTA

FAN

P48

Fig. 4.i.c

Key:

AHU Air Handling Unit AL shutdown alarm FAN fan t time

The part in grey of the fan graph indicates that extra  ush is only performed if the electric heater was on before the AHU is shut down.

Prog Description Def1 Def2 Def3 Min Max UOM

35 Flush time when

changing mode

30 30 30 0 255 s

48 Extra  ush time with

heater

20 20 20 0 255 s

Tab. 4.h.5

Autofan (fan speed selection based on the room temperature)

(parameters 7,8,9,118)

Note: Function only active when P118=0

From the hardware point of view, the three speeds are managed by the three outputs NO1, NO2, NO3 on the MasterAria main control board. To activate the Autofan function, press the fan button on the “acqua” terminal until displaying AUTO next the fan icon. The Autofan function establishes the fan speed when there is no manual setting by the user. In cooling and heating mode, the speed is higher the further the room temperature is away from the set point (including AUTOMATIC cooling, AUTOMATIC heating). In ventilation mode, the speed is constant at the average value for the range set by parameters P30, P31, P06 (see the corresponding paragraph). In dehumidi cation mode, the speed is constant at the minimum value.

P08

P08P07 P07

OFF

min.

medium

max.

P09

set point

P09

P09 P09

TA (°C)

Fig. 4.j

Key

H heating C cooling TA room temperature (°C)

Par Description Def1 Def2 Def3 Min Max U.M

07 Medium speed delta in

Auto Fan

7 7 7 0 255 °C/10

08 Maximum speed delta in

Auto Fan

7 7 7 0 255 °C/10

09 Fan speed hysteresis in

Auto Fan

5 5 5 0 255 °C/10

118 Fan mode

0 3 speed 1 minimum speed 2 continuous single-

speed (normally used for AHUs)

22202---

Tab. 4.h.6

Comfort

(parameter 36)

This function, if activated by P36, disables modi cation of the set point, allowing just a ±3 °C o set (in heating, cooling, dehumidi cation and AUTOMATIC mode). The set point can be set by serial connection (see the corresponding paragraph) or on the “acqua” terminal, for parameter P01.

Par Description Def1 Def2 Def3 Min Max UOM

36 Select AUTOMATIC with

set point or Comfort

0 Comfort function

disabled (set point P01 can be changed from “acqua” terminal)

1 Enable Comfort (only

± 3°C change in set point from P01)

00001---

P and P+I algorithm

(parameters 110,111,113,114,115,116,117)

MasterAria features a P+I algorithm that is used to control modulating valves and dampers (0 to 10 Vdc and 3 point). Control can be performed on the BT probe on the “acqua” terminal or on the intake/return probe that can be assigned to one of the three MasterAria probes, by setting the corresponding parameter. The P+I algorithm is activated by enabling one of the modulating valve outputs and setting the proportional band and integration time parameters. To start an actuator with a delay from the previous device, use the activation delta, which de nes the point of activation of a device with reference to the previous. For example, to activate the cold water valve at set point + 4°C, simply set the cold water valve activation delta, P113=40 (the unit of measure is °C/10). The parameters for heating have a similar meaning.

The following events are de ned, with the respective conditions for activation:

OPENING:

room temperature increasing in cooling • room temperature decreasing in heating •

CLOSING:

room temperature decreasing in cooling • room temperature increasing in heating •

When OPENING in heating, the activation sequence is: 1-Damper, 2-Heating valve, 3-Heater (*). When OPENING in cooling the activation sequence is: 1-Damper, 2-Cold water valve

When CLOSING in heating the activation sequence is: 1-Heater(*) 2-Heating valve, 3-Damper. When CLOSING in cooling the activation sequence is: 1-Cold water valve, 2-Damper.

This can be considered a LIFO sequence (Last In, First Out)

Proportional control - P

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Below is a graph showing an example of con guration with proportional control only (integration time = P108=0) and the trend in the OPENING event.

100%

TA (°C)

P110

P01

P113P116 P115

P114 P114

P109 P109

Fig. 4.k.a

Key:

P01 set point U outputs P109 dead band TA room temperature

(control probe)

P110 heating valve on delta P113 cooling valve on delta S outside damper P114 damper prop. band VF cooling valve P115 cooling valve prop. band VC heating valve P116 heating valve prop. band

Note that:

the control signal is sent to the actuators outside of the dead band• the valve has a proportional band for heating and another for cooling• the actuators are activated in sequence:  rst the damper, then the • valve, which will begin opening outside of the damper proportional band, as illustrated in the  gure.

In this case, the valve is activated when the damper is completely open, with a control signal corresponding to the percentage of opening at that point (>0%). As regards CLOSING,  rst the valve will close completely and then the damper will start closing, at a temperature equal to the complete closing temperature of the valve plus a ∆T equal to two times the dead band:

ΔT = 2*P109

100%

TA (°C)

P110

2xP109

P01

P116

P114

P109

Fig. 4.k.b

Key:

P01 set point U outputs P109 dead band TA room temperature

(control probe)

P110 heating valve on delta P113 cooling valve on delta S outside damper P114 damper prop. band VC heating valve P116 heating valve prop. band

The behaviour for closing in cooling is similar but opposite.

(*) Note that as there are a maximum of two modulating 0 to 10 Vdc outputs, the heater can be controlled with the P+I algorithm only if the damper is on/ o . The activation delta and the proportional band are parameters P111 and P117.

Proportional and integral control - PI

If the integration time ≠ 0, the P+I algorithm is implemented. The following graph shows the case of OPENING when the proportional band for the damper and the hot and cold water valves have the same value, with the activation delta set to zero.

OPENING IN HEATING:

the actuators follow a ramp trend, without steps. When the damper • is completely open, the valve starts opening gradually, as the error increases due to the contribution of the integration factor;

CLOSING IN HEATING:

the valve starts closing when the room temperature exceeds point A. • When the valve is completely closed, the damper starts closing, until reaching the minimum position (20%).

BEHAVIOUR IN THE DEAD BAND:

around the set point (±P109) the actuators stop at the position • calculated when entering the dead band.

100%

TA (°C)

P109

P01

P109

P114=P116

P119=20

Fig. 4.k.c

Key:

P01 set point U outputs P109 dead band TA room temperature

(control probe)

P110 heating valve on delta P113 cooling valve on delta S outside damper P114 damper prop. band VC heating valve P116 heating valve prop. band

The behaviour for opening and closing in cooling is similar but opposite.

Actuator movement control

(parameter 99)

A parameter is available that limits the movements of the valve so as to reduce wear and adapt the P+I output to the e ective resolution for the position of the actuator. In fact, a minimum variation in the P+I output can be established before the output e ectively switches (parameter P99).

Reduction in the e ect of changing modes and/or operating parameters (bumpless transfer)

(parameter 107)

The “bumpless transfer” parameter, in response to changes in the P+I algorithm control parameters during the normal operation of the unit, dampens any swings or over-corrections of the system, especially when the algorithm interacts with multiple devices or actuators.

Modulating valve/damper management

(parameters 97,102,103)

For modulating management of the actuators, parameters P15, P16, P17 must all be set >0. For correct use of the 3-point actuators, the time taken for complete opening or closing must be entered.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Par Description Def1 Def2 Def3 Min Max UOM

97 3-point valve actuator

travel time

120 120 120 1 255 s

102 Inactivity hysteresis

If output<P102, output=0 If output >100%-P102, output =100%

0000100%

103 3-point damper actuator

travel time

150 150 150 0 255 s

Tab. 4.h.8

Synchronisation

When the MasterAria is shutdown (switched from ON ->OFF), powered up, or when total closing is requested (in this case, the minimum time between two synchronisation cycles is 6 hours), a complete closing cycle is performed to ensure correct alignment between the position determined by the P+I algorithm and the real position, as there may in fact be misalignments due to mechanical wear after a signi cant number of operations. The synchronisation procedure is only performed on the 3 point valves, while for the valves with 0 to 10 V input, the function is managed by the electronics on the actuator. The return to normal operating conditions after a synchronisation cycle is managed according to the normal dynamics of the P+I algorithm, given that the extent of the error at the moment of synchronisation cannot be known. Small deviations between the theoretical and the actual position are automatically compensated for by the integration factor.

Antistick function

(parameters 100,101)

To prevent the valves from blocking (due to impurities or the entrainment of solid residues in the water circuit), set movements of the valve are performed periodically. These operations are only performed after a certain period in which the valve is inactive (for example, when the set point has been reached or when the device is o ). For the valves with 0 to 10 V input, this function is managed by the electronics on the actuator.

Par Description Def1 Def2 Def3 Min Max UOM

100 Maximum valve

stationary time (to unlock) (0=antistick function disabled)

4 4 4 0 255 hrs

101 Forced movement for

antistick. Considered as a % of the maximum travel set

20 20 20 0 100 %

Tab. 4.h.9

Cooling (management of the hot/cold water or cold water valve only)

The activation of the hot/cold water or cold water valve only is decided based on the set point (see the  gure below), while the activation of the fan depends on the cool enable function (at the speed selected by the user or decided by the autofan function). When the room temperature (i.e. the value measured by the control probe) reaches the set point, the hot/cold water or cold water valve only is closed and the fan is stopped.

P06

OFF

set point

TA (°C)

Fig. 4.l.a

Key:

V valve TA room temperature (control probe)

Par Description Def1 Def2 Def3 Min Max UOM

06 Thermostat hysteresis 5 5 5 0 255 °C/10

Below is an example of the activation sequence of the MasterAria loads; the AHU is  tted with a hot/cold water valve and is operating in cooling mode with the fan speed established by the autofan function (control probe B1).

min OFF

OFF

P14-P13

(cool enable)

Set +P07

set point

med

FAN

12 3 4 5 6 7

Fig. 4.l.b

Key:

TA room temperature (probe B1) TB coil temperature (probe B2) V valve FAN fan

1. mode changed by user

2. extra  ush cycle

3. select speed by autofan

4. activate ventilation by cool enable

5. change speed by autofan

6. deactivate valve & fan when set point reached

7.  ush cycle t time

Heating (management of the hot/cold water valve or hot water valve only)

The activation of the hot/cold water or hot water valve only is decided based on the set point (see the  gure below), while the activation of the fan depends on the heat enable function (at the speed selected by the user or decided by the autofan function). When the room temperature (i.e. the value measured by the control probe) reaches the set point, the hot/cold water or hot water valve only is closed and the fan is stopped.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

P06

OFF

set point

TA (°C)

Fig. 4.m.a

Key:

V valve TA room temperature (control probe)

Par Description Def1 Def2 Def3 Min Max UOM

06 Thermostat hysteresis 5550255°C/10

A heater can be used (with dip 5= ON) to improve the heating function and establish a di erent hysteresis depending on whether or not the heat enable function is operating. To avoid possible overheating, the fan is started at the same time as the heater, and remains on for a time equal to P48 after the heater is shutdown. As extra protection, the heater is deactivated if the coil temperature exceeds the value of parameter P47.

Case 1: heat enable active (no hot water)

OFF

TA (°C)

P06

P13

set point

OFF

TA (°C)

Fig. 4.m.b

Case 2: heat enable not active (hot water available)

set point

OFF

TA (°C)

P06

P13

OFF

()

TA (°C)

P46

Fig. 4.m.c

Key

R heater TA room temperature (control probe) V valve

Par Description Def1 Def2 Def3 Min Max U.M

13 - Hysteresis to enable fan

in heat/heat AUTOMATIC, cool, cool AUTOMATIC

- Heater hysteresis (P39=6)

10 10 10 0 255 °C/10

46 Heater band hysteresis

(see P39=6)

30 30 30 0 255 °C/10

47 Max. coil temp. to

deactivate heater (see P39=6)

40 40 40 0 255 °C

48 Extra  ush time with

heater

20 20 20 0 255 s

Tab. 4.h.10

Below is an example of the activation sequence of the MasterAria loads in heating mode; the AHU is  tted with a hot/cold water valve or hot water valve only and is operating in heating mode with the fan speed established by autofan.

min.

OFF

P10+P13

P11+P13

P12+P13

set point

med.

FAN

12 3 4 5 6 7

Fig. 4.m.d

Key

TA room temperature (probe B1) TB coil temperature (heat enable) V valve FAN fan

1. mode changed by user

2. extra  ush cycle

3. select speed by autofan

4. activate ventilation by heat enable & change speed

5. change speed by autofan

6. deactivate valve & fan when set point reached

7.  ush cycle t time

Below is a further example of a unit  tted with hot/cold water valve or hot water valve only and heater; it is operating in heating mode with the fan speed established by autofan.

min.

OFF

P10+P13

P11+P13

(heat

enable)

P12+P13

Set-P13

Set-P46

set point

med.

FAN

12 34 5 6 7 8

Fig. 4.m.e

Key

TA room temperature (probe B1) TB coil temperature (heat enable) V valve R heater FAN fan

1. mode changed by user

2. extra  ush cycle

3. activate valve & heater after extra  ush

4. deactivate heater when thresh. exceeded w/ heat enable not active

5. speed by autofan

6. deactivate valve when set point reached

7. extra  ush heater

8.  ush cycle t time

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Dehumidi cation

Based on the set point,  rstly the room temperature is controlled, cooling if necessary, followed by the actual dehumidi cation cycle. In dehumidi cation mode, the hot/cold water valve or cold water valve only is always open, fan on/o cycles are run at minimum speed. The cool enable function is active so as to ensure that the exchanger temperature is low enough for the water vapour to condense. When the room temperature reaches the set point, the dehumidi cation cycle stops, the fan is shut down and the hot/cold water valve or cold water valve only is closed. If modulating actuators are used, the valve is controlled by opening or closing completely.

OFF

P49 P50 P49 P50 P50 P49

Fig. 4.n

Par Description Def1 Def2 Def3 Min Max UOM

49 Fan on time in

dehumidi cation

3 3 3 0 255 min

50 Fan o time in

dehumidi cation

15 15 15 0 255 min

Tab. 4.h.11

Ventilation

In this mode, the hot or cold water valve is always closed and the fan operates at the speed selected by the user (in autofan, it works at medium speed). The fan is only started if the room temperature is within the range of temperatures speci ed by parameters P30 and P31, to avoid undesired  ows of hot or cold air.

OFF

P31

P30

P06 P06

TA (°C)

Fig. 4.o

Prog Description Def1 Def2 Def3 Min Max UOM

06 Thermostat hysteresis 5 5 5 0 255 °C/10 30 Fan set point (Manual &

AUTO)

15 15 15 0 255 °C

31 Fan di erential (Manual

& AUTO)

20 20 20 0 255 °C

Tab. 4.h.12

Heater

A heater can be managed for the pre-heating, heating and post-heating functions required by the application. If parameter 118≠2 (continuous fan operation), the fan is started at the same time as the heater, and remains on for a time equal to P48 after the heater shuts down. As further protection, the heater is deactivated if the coil temperature exceeds the value of parameter P47.

Par Description Def1 Def2 Def3 Min Max UOM

47 Max. coil temp. to

deactivate heater (see P39=6)

40 40 40 0 255 °C

48 Extra  ush time with

heater

20 20 20 0 255 s

Tab. 4.h.13

0 to 10 Vdc heater

See the description of P+I control for the meaning of the parameters

Par Description Def1 Def2 Def3 Min Max UOM

111 Heater activation delta 30 30 30 0 255 °C

/10

117 Heater proportional

band

0 0 0 0 255 °C

/10

Tab. 4.h.14

ON/OFF heater

Two options are available for the ON/OFF heater, each with its own activation delta and hysteresis, depending on whether or not the P+I algorithm is activated.

Important:

During the antifreeze alarm, only for AHUs with recirculation, the heater is on until the temperature returns to normal values. This applies to the modulating 0 to 10 Vdc (P39=17) or ON/OFF heater (P39=18), and not the ON/OFF heater option P39=6.

Case 1 (P+I algorithm activated): P39=18

P111

P112

set point

OFF

TA (°C)

Key:

R heater TA room

temperature (control probe)

Fig. 4.p.a

Par Description Def1 Def2 Def3 Min Max UOM

39 Con g. output NO4

18 Output (triac or

relay) for man. of ON/OFF heaters (with hysteresis) on P+I. Set parameters P111, P112.

13 13 9 0 24 ---

40 Con guration of output

NO5 (see P39)

14 21 10 0 24 ---

41 Con guration of output

NO6 (see P39)

23 18 19 0 24 ---

42 Con guration of output

NO7 (see P39)

0 24 20 0 24 ---

111 Heater activation delta 30 30 30 0 255 °C

/10

112 Heater hysteresis

(p39=18)

5550255°C

/10

Tab. 4.h.15

Case 2 (P+I algorithm NOT activated): P39 =6

P46

P13

set point

OFF

TA (°C)

Key:

R heater TA room

temperature (control probe)

Fig. 4.p.b

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Par Description Def1 Def2 Def3 Min Max UOM

39 Con g. output NO4

6 ON/OFF heater (normally open) (set parameters P46 & P13);

13 13 9 0 24 ---

40 Con guration of output NO5 (see P39) 14 21 10 0 24 --41 Con guration of output NO6 (see P39) 23 18 19 0 24 --42 Con guration of output NO7 (see P39) 0 24 20 0 24 --13 Heater hysteresis (P39=6) 10 10 10 0 255 °C/10 46 Heater band hysteresis (see P39=6) 30 30 30 0 255 °C/10

Tab. 4.h.16

The fan and the cold/hot water valve are managed in the same way as in heating/cooling mode (the  ush function is not active). The heater is managed in the same way as in heating mode. In AUTOMATIC OFF, the cold/hot water valve is closed and the  ush function is active. If when entering AUTOMATIC mode the room temperature falls into the hysteresis zone, priority is given to heating mode. When cooling mode is activated, the control set point is the set point + P02, while in heating mode the control set point is the set point - P03.

P+I ALGORITHM: The mode, heating or cooling, is determined according to the graph shown on the side, then the P+I algorithm enters into play, managing the outputs. The mode is changed only after all the actuators have been deactivated, as a consequence the internal parameters are reset each time. It should be noted that P02, P03, P04 and P05 involve a further activation hysteresis (in additional to the P+I dead band) and therefore the parameters must be set appropriately. The values of parameters P04 and P05 should be set lower than the dead band.

Prog Description Def1 Def2 Def3 Min Max UOM

02 AUTOMATIC mode: Set point di erential in cooling 0000255°C/10 03 AUTOMATIC mode: Set point di erential in heating 0000255°C/10 04 AUTOMATIC mode: Cooling hysteresis 0000255°C/10 05 AUTOMATIC mode: Heating hysteresis 0000255°C/10

Tab. 4.h.17

AUTOMATIC operation: Heating/Cooling

In AUTOMATIC mode, MasterAria measures the room temperature and decides which mode to activate (cooling or heating) based on the set point. The criterion is illustrated in the graph.

123

P05 P03 P02 P04

TA (°C)

P109 P109

Fig. 4.q

Key

H heating 1. cooling set point C cooling 2. control set point P109 dead band 3. cooling set point U op. mode TA room temperature (cont. probe)

Compensation using the outside temperature probe

The set point can be adjusted in relation to the outside temperature, so as to avoid signi cant di erences when entering/leaving the environment

or to compensate for the thermal dispersion of the environment itself. The parameters are di erentiated between cooling and heating, and the coe cient applied may be positive or negative, depending on the desired e ect.

Case 1: Cooling

If Text > Set + P23 Set_comp = Set+{[Text-(Set+P23)]*P24} If Text < Set + P23 Set_comp = Set

Tex t

P24=2

P24=-2

P24=+0,5

P24=-0,5

Set =3 °C

Set_comp

Set + P23

Set

Fig. 4.r.a

Key (Fig. 4.r.a & Fig. 4.r.b)

P24 Factor for compensation in cooling Set Set point P25 Delta set point for compensation in heating Set_comp Set point with compensation P26 Factor for compensation in heating P23 Set point delta for compensation in cooling Text Outside temperature

The set point with compensation cannot in any case exceed values greater than or less than 3 °C (cooling) and 2 °C (heating) from the set point (saturation).

Case 1: Heating

If Text > Set - P25 Set_comp = Set+{[Text-(Set-P25)]*P26} If Text < Set - P25 Set_comp = Set

Set - P25

P26=+2

P26=-2

P26=-0,5

P26=+0,5

Tex t

Set =2 °C

Set_comp

Set

Fig. 4.r.b

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Par Description Def1 Def2 Def3 Min Max UOM

22 Select optional compensation probe

0 Compensation disabled 1 Compensation enabled on B1 = outside probe 2 Compensation enabled on B3 = outside probe

00002---

23 Set point delta for compensation in cooling (0 = Compensation disabled) 0 0 0 -99 127 °C/10 24 Factor for compensation in cooling (0 = Compensation disabled) 0 0 0 -20 20 --25 Set point delta for compensation in heating (0 = Compensation disabled) 0 0 0 -99 127 °C/10 26 Factor for compensation in heating (0 = Compensation disabled) 0 0 0 -20 20 ---

Tab. 4.h.18

4.3 Outlet limits

Outlet limits are particularly useful in applications where the AHU is controlled based on the return (intake) or room temperature, and have the purpose of preventing air that is too cold or too hot from being introduced into the environment. To do this, these limits act directly on the heating and cooling devices, bypassing the other algorithms.

Minimum outlet limit on the cold water valve

OFF

90 s

100%

TMm

TMm - Dif

Fig. 4.s

Key

t time TM outlet temperature VF cooling valve TMm min outlet temp. (P106) S damper Di outlet limit di . (P126)

Cold water valve:1. when the outlet temperature falls below the

minimum outlet temperature (TMm), MasterAria starts closing the cold water valve until closing completely at the value of (TMm-Di ).

Outside damper:

2. if a modulating damper is used and freecooling/

heating management is available, the outlet limit acts on the damper only if the action on the cooling coil is not su cient. If 90 seconds after closing the valve the outlet temperature continues to remain below the minimum outlet temperature minus a di erential, the damper is moved to the minimum position (P119). For ON/OFF dampers, the damper is closed.

While the outlet limit conditions remain, the integral action of the control algorithm is suspended.

Par Description Def1 Def2 Def3 Min Max UOM

106 Minimum cooling valve/

heating valve-heater outlet temperature

127 18 18 -28 127 °C

119 Minimum outside

damper position

0 20200 100%

126 Outlet limit di erential 20 20 20 10 255 °C/10

Tab. 4.i

Minimum outlet limit on the hot water valve (heating

only)

During the winter period, there are two cases in which the minimum outlet limit may be enabled:

when the room temperature reaches the set point and the heating coil

•

closes completely, if the outside air is too cold a situation of discomfort will be created inside the environment near the air distributors; when freecooling is active in crowded environments such as discos, • pubs etc., if the outside air is too cold the same problem as described above occurs.

In these cases, to speed up the correction, the heating coil needs to be activated by the outlet probe. Depending on the heating devices used, the following actions are implemented:

Heating valve:

1. when the outlet temperature falls below the minimum

outlet temperature (TMm), MasterAria starts opening the heating valve until opening completely at the value of (TMm-Di ).

Modulating heater only:2. same operation as for the modulating

valve.

ON/OFF heater only:3. as shown in the graph, if the only heating device

is the ON/OFF heater, then it switches on at (TMm - Di ).

OFF

100%

TMm

TMm - Dif

VC/RM

Fig. 4.t

Key

t time TM outlet temperature VC/RM mod. heating valve/

heater

TMm min outlet temp. (P106)

R ON/OFF heater Di outlet limit di . (P126)

Par Description Def1 Def2 Def3 Min Max UOM

106 Minimum cooling valve/

heating valve-heater outlet temperature

127(*) 18 18 -28 127 °C

126 Outlet limit di erential 20 20 20 10 255 °C/10

Tab. 4.j

(*) 127 = function disabled

Maximum outlet limit

This limit is implemented when the AHU is working in heating mode and due to sudden variations in the outside environmental conditions or faults

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

on the unit, air that is too hot starts being blown into the environment. In this case, MasterAria starts reducing the action of the heating coil.

Depending on the heating devices used, the following actions are implemented:

Heating valve:

1. when the outlet temperature exceeds the maximum

outlet temperature (TMM), MasterAria starts closing the heating valve until closing completely at the value of (TMM+Di ).

Modulating electric heater:2. same operation as for the heating valve. Heating valve + ON/OFF heater: 3.  rst the heater is switched o and

then the valve closes.

Outside damper: 4. if a modulating damper is used and freecooling/

heating management is available, the outlet limit acts on the damper only if the action on the heating coil is not su cient. If 90 seconds after closing the valve the outlet temperature continues to remain above the maximum outlet temperature plus a di erential, the damper is moved to the minimum position (P119). For ON/OFF dampers, the damper is closed.

100%

VC/RM

OFF

90 s

OFF

TMM + Diff

TMM

Fig. 4.u

Key

t time TM outlet temperature V heating valve TMM max. outlet temp. R ON/OFF heater Di outlet limit di . S damper VC/RM modulating heating valve/

heater

Prog Description Def1 Def2 Def3 Min Max UOM

125 Maximum outlet

temperature

127 (*) 28 28 -28 127 °C

126 Outlet limit di erential 20 20 20 10 255 °C/10

Tab. 4.k

(*) 127 = function disabled

Freecooling/freeheating dampers

MasterAria can manage the outside air damper, the recirculation damper and the heat recovery unit bypass damper. The  rst two dampers have complementary behaviour and can be managed by the same output with a parallel connection. The actuators have a selector for reversing the direction of rotation. For convenience, reference will only be made to the outside air damper. The type of management can be on/o or proportional.

ON/OFF damper

The management of these types of dampers is quite simple. The behaviour of the damper is in fact very similar to the AHU itself, as can be seen from the graph. Note the extra  ush cycle if the electric heater is  tted.

OFF

CTA

P48

Fig. 4.v

Key:

AHU air handling unit AL antifreeze alarm S damper t time

Par Description Def1 Def2 Def3 Min Max UOM

39 Con g. output NO4

23 ON/OFF outside

damper

13 13 9 0 24 ---

40 Con guration of output

NO5 (see P39)

14 21 10 0 24 ---

41 Con guration of output

NO6 (see P39)

23 18 19 0 24 ---

48 Extra  ush time

with heater

20 20 20 0 255 s

Tab. 4.l

Proportional 0 to 10 Vdc damper

MasterAria manages the proportional damper using the P+I control algorithm, described in the corresponding paragraph.

TA (°C)

P119

P114 P114

100%

P109 P109

Fig. 4.w

Key:

P114 damper prop. band

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

U P+I output H heating P109 dead band C cooling P119 minimum damper position TA room temperature

(control probe)

The proportional damper features a minimum position, set by the user (P119), below which the damper cannot be closed, except in the event of alarms. It is opened beyond the minimum position if the freecooling and freeheating conditions require.

Freecooling and freeheating

The freecooling/freeheating function is used to exploit the outside temperature conditions, when these are favourable, adjusting the opening of the outside damper. To be able to use these functions:

connect and enable the outside and room temperature probes;• set the freecooling di erential;• set the freeheating di erential.•

In the summer period, the conditions to allow freecooling are:

Room

- T

OUTSIDE

> Freecooling activation delta (P104)

P114P109

100%

TA (°C)

Fig. 4.x.a

Key:

S outside damper TA room temperature (control probe)

1. set point

If the condition is satis ed, then the damper starts opening according to the normal control signal, based on the control probe reading. In the winter period, the conditions to allow freeheating are:

OUTSIDE

- T

Room

> Freeheating activation delta (P105)

P114 P109

100%

TA (°C)

Fig. 4.x.b

Key:

S outside damper TA room temperature (control probe)

1. set point

If the condition is satis ed, then the damper starts opening according to the normal control signal, based on the control probe reading.

Disabling:

To disable the freecooling and freeheating functions, set the

respective di erentials to zero (parameters P104 and P105).

Prog. Description Def1 Def2 Def3 Min Max UOM

15 Function of probe B1

6 Outside probe

77707---

16 Funct. probe B2 (par.

table)

4 2 4 7 ---

17 Funct. probe B3 (par.

table)

66607---

39 Con g. output NO4

19 Open 3-point

outside damper

20 Close 3-point

outside damper

21 0 to 10 Vdc

outside damper

13 13 9 0 24 ---

40 Con guration of output

NO5 (see P39)

14 21 10 0 24 ---

41 Con guration of output

NO6 (see P39)

23 18 19 0 24 ---

42 Con guration of output

NO7 (see P39)

0 24 20 0 24 ---

104 Freecooling activation

delta

0 20 20 0 255 °C/10

105 Freeheating activation

delta

0 20 20 0 255 °C/10

Tab. 4.m

Heat recovery unit

The MasterAria can manage cross- ow heat recovery units, with the corresponding bypass damper. The heat recovery unit is an excellent device for ensuring energy saving, as it exploits the air discharged from the environment to heat (in heating mode) or cool (in cooling mode) the outside air taken in by the AHU.

Aria

esterna

Aria di

espulsione

Aria ambiente

Aria di mandata

Fig. 4.y.a

The role of the bypass damper is to bypass the heat recovery unit when the outside and room temperatures would not allow good heat recovery. Normally, the heat recovery unit is bypassed when the outside conditions are favourable, that is, when freecooling or freeheating are active. MasterAria can only manage on/o actuators in this case ON/OFF.

Operation:

Cooling If cooling is required, the bypass damper only closes if: (T

OUTSIDE

- T

ROOM

)

> P127

Heating If heating is required, the bypass damper only closes if: (T

ROOM

- T

OUTSIDE

)

> P127

Both conditions are maintained for a minimum of 5 minutes, to avoid situations of instability when the temperature  uctuates around the set point.

Antifreeze If the antifreeze conditions are true, MasterAria opens the bypass damper.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

P127

1 2

3 4

OFF

100%

Fig. 4.y.b

Key

4. T

ROOM

- T

OUTSIDE

1. cooling t time

2. heating AL antifreeze alarm

3. T

OUTSIDE

- T

ROOM

S recovery bypass damper

Prog Description Def1 Def2 Def3 Min Max UOM

15 Function of probe B1

6 Outside probe

77707---

16 Function of probe B2

(see par. table)

42 47---

17 Function of probe B3

(see par. table)

66607---

39 Con g. output NO4

24 ON/OFF recovery

bypass damper

13 13 9 0 24 ---

40 Con guration of output

NO5 (see P39)

14 21 10 0 24 ---

41 Con guration of output

NO6 (see P39)

23 18 19 0 24 ---

42 Con guration of output

NO7 (see P39)

0 24 20 0 24 ---

127 Close bypass damper

set point

20 20 20 0 255 °C/10

Tab. 4.n

4.3 Notes on settings via serial connection

All the MasterAria parameters can be viewed and those without write protection modi ed via serial connection (PlantVisor and Modbus®). Below is a short description of the most signi cant variables (for the settings, see the summary table of parameters).

Variable Meaning Type SV ind Modbus® ind R/W

Control probe This variable contains the value of the probe used to control the MasterAria (B1 or BT).

The value considers any o sets, hysteresis, control algorithms etc.

A7474 R

Set point setting This variable is used to read and where necessary overwrite the value of the set point

con gured on the panel. This is especially useful if the MasterAria has the comfort function active (e.g. centralised systems such as hotels, o ces etc.).

I 83 211 R/W

Control set point This variable is used to read the value of the control set point used by MasterAria.

The value considers the hysteresis, compensation factors, o sets (e.g.: sleep function), algorithms etc.

A7676 R

Digital inputs & heat/cool request

Heating/cooling signal: the bits are set when the unit is ON and the set point has not been reached. Especially useful for energy saving functions.

I 81 209 R

Lock keypad from panel This variable is used to disable the buttons on the terminal so as to prevent accidental

settings. Useful for centralised systems (hotels, o ces etc.).

I 78 206 R/W do not

modify

Tab. 4.o

4.4 Alarms

Below is the table of alarms.

Alarm Display E ect Notes Priority

Eeprom fault on power up A01 Stop fan (with extra  ush for heater).

Close hot/cold water valves. Switch o heater.

Load defaults or reset from key

Slave o ine in CAN network A02 2 Room probe fault A03 3 Probe B2 or B3 fault A04 4 Window alarm A05 A05 5 Circulating pump stopped A06 6 Local stop A07 7 Antifreeze alarm A08

AHU 100% outside air: AHU with recirculation:

Stop fan (after optional • extra  ush with heater)

Fan operating

•

Close outside damper• Activate heating device (heater or • valve)

Close outside damper• Open cooling valve, with no heating •

valve or heater

Open heating valve• Open cooling valve when • no heating valve

Open bypass damper•

Dirty  lter alarm A09 Signal only on terminal 9

Tab. 4.p

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Fan circuit breaker

To ensure both software and electromechanical protection, as shutting down the fan implies stopping the entire unit, the fan circuit breaker

should be connected directly to the digital input con gured as the local stop. In this case, MasterAria deactivates the fan output and closes the valve.

Prog Description Def1 Def2 Def3 Min Max UOM

43 Con guration of digital input 3

5 local stop (normally open) 10 local stop (normally closed)

10 10 10 0 14 ---

44 Con guration of digital input 4 (see P43) 12 12 12 0 14 --45 Con guration of digital input 5 (see P43) 14 14 14 0 14 ---

Tab. 4.q

The alarm is indicated on the display by code A07.

Dirty  lter alarm

By nature, the  lters on an AHU will become clogged with all the impurities present in the air. When the  lters are excessively clogged, not only do they no longer carry out their  ltering function, but they also represent a signi cant pressure drop for the AHU. To warn the user of this risk, MasterAria manages the dirty  lter alarm.

The signal that generates the alarm is sent by the digital pressure switch that measures the pressure di erence upstream and downstream of the  lter. If the pressure di erence exceeds the threshold set by a trimmer in the pressure switch, the contact opens, generating the alarm. The alarm is signal-only, and does not a ect the normal operation of the AHU in any way.

Prog Description Def1 Def2 Def3 Min Max UOM

43 Con guration of digital input 3

13 dirty  lter alarm from di erential pressure switch (normally open) 14 dirty  lter alarm from di erential pressure switch (normally closed)

10 10 10 0 14 ---

44 Con guration of digital input 4 (see P43) 12 12 12 0 14 --45 Con guration of digital input 5 (see P43) 14 14 14 0 14 ---

Tab. 4.r

The alarm is indicated on the display by code A09.

Antifreeze alarm

The condition that causes the antifreeze alarm is very critical for an AHU, as it may cause irreparable damage to the water coils and the heat recovery unit. The antifreeze alarm can be activated by probe (P121, P122=activation threshold, deactivation threshold) or by thermostat. MasterAria, when managing an antifreeze situation, distinguishes the type of AHU: 100% outside air or recirculation (P124).

Important: parameter P124 must be set correctly!

AHU with 100% outside air

This unit only has the outside damper and not the recirculation damper. This means that the AHU only works with the air only coming in from the outside. In the event of antifreeze alarms, MasterAria responds as follows:

closes the outside air damper;• stops the fan;• operates the heating device at 100%, unless the electric heaters are • being used, which are kept o or switched o if on; if there are no heating devices or there are only electric heaters, the

•

cold water valve is fully opened to see whether this can prevent the coil from freezing; the display shows the alarm A08.•

AHU with recirculation

This unit has both the outside damper and the recirculation damper. This means that the air coming in from the outside and the air from the environment are mixed inside the AHU. In the event of antifreeze alarms, MasterAria responds as follows:

closes the outside air damper;• completely opens the recirculation damper;•

the fan is kept on;• operates the heating device at 100%, with priority given to the heater • if  tted, otherwise the heating valve; if there are no heating devices, the cold water valve is fully opened to • see whether this can prevent the coil from freezing; the display shows the alarm A08;;•

AHU with heat recovery unit

The ON/OFF damper on the heat recovery unit is opened during the antifreeze alarm. In systems with P91=45, the behaviour of the fan, heater and valve is the same as for the AHU with 100% outside air (P124 = 0).

Return to normal operation

In the cases described above, the AHU automatically returns to normal operation when the temperature measured by the probe returns to normal values or when the thermostat contact opens.

There is in any case a programmable delay (P123 ) that controls the return to normal operation.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Prog Description Def1 Def2 Def3 Min Max UOM

15 Function of probe B1

3 Cooling coil probe 4 Heating coil probe

77707---

16 Function of probe B2 (see P15) 42 47--17 Function of probe B3 (see P15) 66607--43 Con guration of digital input 3

11 enable antifreeze by time (normally open) 12 enable antifreeze by time (normally closed)

10 10 10 0 14 ---

44 Con guration of digital input 4 (see P43) 12 12 12 0 14 --45 Con guration of digital input 5 (see P43) 14 14 14 0 14 --120 Enable antifreeze

0 Disabled 1 Enable by probe 2 Enable by digital input

02202---

121 Antifreeze activation threshold 2 2 2 -28 50 °C 122 Antifreeze deactivation threshold 7 7 7 -28 50 °C 123 Antifreeze time 2221255min 124 Unit model

0 100% outside air 1 With recirculation

01101---

Tab. 4.s

4.5 Table of parameters

P Parameter Def.1 Def.2 Def.3 Min Max UOM SV type SV # Modbus® access notes

00 Software version --- --- --- --- --- --- I 1 129 U E.g.10 =

v1.0 01 AUTOMATIC mode set point 22 22 22 0 255 °C A 1 1 U 02 AUTOMATIC mode:

Set point di erential in cooling

0 0 0 0 255 °C/10 A 2 2 U

03 AUTOMATIC mode:

Set point di erential in heating

0 0 0 0 255 °C/10 A 3 3 U

04 AUTOMATIC mode: Cooling hysteresis 0 0 0 0 255 °C/10 A 4 4 U 05 AUTOMATIC mode: Heating hysteresis 0 0 0 0 255 °C/10 A 5 5 U 06 Thermostat hysteresis 5 5 5 0 255 °C/10 A 6 6 U 07 Delta for medium speed in Autofan 7 7 7 0 255 °C/10 A 7 7 U 08 Delta for maximum speed in Autofan 7 7 7 0 255 °C/10 A 8 8 U 09 Fan speed hysteresis in Autofan 5 5 5 0 255 °C/10 A 9 9 U 10 Temperature to enable minimum fan speed in heating/

AUTOMATIC heating

29 29 29 0 255 °C A 10 10 U

11 Temperature to enable medium fan speed in heating/

AUTOMATIC heating

33 33 33 0 255 °C A 11 11 U

12 Temperature to enable maximum fan speed in heating/

AUTOMATIC heating

37 37 37 0 255 °C A 12 12 U

13 - Hysteresis to enable fan in heating/AUTOMATIC heating,

cooling, AUTOMATIC cooling

- Heater hysteresis with heat enable active (P39=6)

10 10 10 0 255 °C/10 A 13 13 U

14 Temperature to enable fan in cooling/AUTOMATIC cooling

& dehumidi cation

21 21 21 0 255 °C A 14 14 U

15 Function of probe B1

0 With dipswitch6 = ON, control probe is probe on

“acqua” terminal 1 Probe disabled 2 Heating/cooling coil probe 3 Cooling coil probe 4 Heating coil probe 5 With dipswitch6 = OFF, control probe is probe B1

(intake/return) 6 Outside probe 7 Outlet probe

7 7 7 0 7 --- I 105 233 U

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

P Parameter Def.1 Def.2 Def.3 Min Max UOM SV type SV # Modbus® access notes

16 Function of probe B2 (see P15) 42207---I 106234 U 17 Function of probe B3 (see P15) 66607---I 107235 U 18 Increase cooling/dehumidi cation set point in sleep 10 10 10 0 255 °C/10 A 18 18 U 19 Decrease heating set point in sleep 10 10 10 0 255 °C/10 A 19 19 U 20 ADC limitation coe cient 666015---I 2130 U 21 ADC average coe cient 666015---I 3131 U 22 Select optional compensation probe

0 Compensation disabled 1 Compensation enabled on B1=outside probe 2 Compensation enabled on B3=outside probe

00002---I 4132 U

23 Set point delta for compensation in cooling

0 Compensation disabled

0 0 0 -99 127 °C/10 A 20 20 U

24 Factor for compensation in cooling

0 Compensation disabled

0 0 0 -20 20 --- A 21 21 U

25 Set point delta for compensation in heating

0 Compensation disabled

0 0 0 -99 127 °C/10 A 22 22 U

26 Factor for compensation in heating

0 Compensation disabled

0 0 0 -20 20 --- A 23 23 U

28 Visibility of output values to supervisor

0 Disabled 1 Enabled 2,3 DO NOT SELECT

00003---I 6134 U

30 Fan set point (Manual & AUTO) 15 15 15 0 255 °C A 24 24 U 31 Fan di erential (Manual & AUTO) 20 20 20 0 255 °C A 25 25 U 32 Flush o

0 Disabled >0 Fan o time

2220255minI 8136 U

33 Flush on

0 Disabled >0 Fan on time

90 90 90 0 255 s I 9 137 U

34 Flush mode

0 Function disabled 1 Flush function active in cooling, dehumidi cation &

AUTOMATIC 2 Flush function active in heating & AUTOMATIC OFF 3 Flush function active in heating, cooling,

dehumidi cation & AUTOMATIC OFF

00003---I 10138 U

35 Flush time when changing mode 30 30 30 0 255 s I 11 139 U 36 Select AUTOMATIC with Set point or Comfort

0 Comfort function disabled

(set point can be changed from “acqua” terminal) 1 Enable Comfort

(only ±3 °C change in set point from P01)

00001---I 12140 U

37 Display (“acqua” terminal)

0 Display set point 1 Display control probe (BT or B1) 2 Display probe B2 3 Display probe B3 4 Display position of modulating valve 5 Display position of modulating damper

00005---I 13141 U

38 Disable operating mode

1 AUTOMATIC 2 cooling 4 dehumidi cation 8 ventilation 16 heating 32 autofan 64 sleep 128 ON/OFF timer & display clock

The setting is achieved by adding the values shown below, each of which corresponds to the disabling of the corresponding function.

EXAMPLE: Activation of AUTOMATIC mode only: 2+4+8+16 = 30

0000255---I 14142 U

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

P Parameter Def.1 Def.2 Def.3 Min Max UOM SV type SV # Modbus® access notes

39 Con guration of output NO4

0 Output disabled 1 ON/OFF cold water valve (norm. open) 2 ON/OFF hot water valve (norm. open) 3 Chiller activation signal, cold water request (norm.

open). Contact closed with cold/hot water valve or cold water valve only active (open with valve deactivated)

4 Boiler, heat pump activation signal, hot water

request (normally open). Contact closed with cold/ hot water valve or hot water valve only active (open with valve deactivated)

5 ON/OFF hot/cold water valve (normally open).

Activated with cooling/heating request from controller. O when are both deactivated

6 ON/OFF heater(normally open) (set parameters P46

& P13) 7 Alarm (normally open) 8 DO NOT SELECT 9 3-point valve + (clockwise) for cold water (hot/cold

water if dip4=OFF)* 10 3-point valve - (anticlockwise) for cold water (hot/

cold water if dip4=OFF)* 11 3-point valve + (clockwise) for hot water

(deactivated if dip4=OFF) * 12 3-point valve - (anticlockwise) for hot water

(deactivated if dip4=OFF) * 13 Valve with 0 to 10 Vdc input for cold water (hot/cold

water if dip4=OFF) * 14 Valve with 0 to 10 Vdc input for hot water

(deactivated if dip4 =OFF) * 15 DO NOT SELECT 16 DO NOT SELECT 17 0 to 10 Vdc output for modulating heater control (by

external module). Set parameters P111, P117.* 18 Output (triac or relay) for man. of ON/OFF heaters

(with hysteresis) on P+I. Set parameters P111, P112.* 19 Open 3-point outside damper* 20 Close 3-point outside damper* 21 0 to 10 Vdc outside damper 22 DO NOT SELECT 23 ON/OFF outside damper 24 ON/OFF recovery bypass damper

(*) The P+I parameters need to be set

13 13 9 0 24 --- I 15 143 U

40 Con guration of output NO5 (see P39) 14 21 10 0 24 --- I 16 144 U 41 Con guration of output NO6 (see P39) 23 18 19 0 24 --- I 17 145 U 42 Con guration of output NO7 (see P39) 0 24 20 0 24 --- I 18 146 U 43 Con guration of digital input 3

0 input disabled 1 economy (norm. open) varies the set point

(cooling= increase, heating= decrease) 2 window alarm (norm. open) stops fan and closes

the valve 3 DO NOT SELECT 4 DO NOT SELECT 5 local stop (generic alarm norm. open) stops fan and

closes the valve 6 economy (norm.closed) 7 window alarm (norm. closed) 8 DO NOT SELECT 9 DO NOT SELECT 10 local stop (generic alarm normally closed). Stops the

fan and closes the valve 11 enable antifreeze by time (normally open) 12 enable antifreeze by time (normally closed) 13 dirty  lter alarm from di erential pressure switch

(normally open) 14 dirty  lter alarm from di erential pressure switch

(normally closed)

10 10 10 0 14 --- I 19 147 U

44 Con guration of digital input 4 (see P43) 12 12 12 0 14 --- I 20 148 U 45 Con guration of digital input 5 (see P43) 14 14 14 0 14 --- I 21 149 U 46 Heater band hysteresis (see P39=6) 30 30 30 0 255 °C/10 A 26 26 U 47 Max. coil temp. to deactivate heater (see P39=6) 40 40 40 0 255 °C A 27 27 U

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

P Parameter Def.1 Def.2 Def.3 Min Max UOM SV type SV # Modbus® access notes

48 Extra  ush time with heater 20 20 20 0 255 s I 22 150 U 49 Fan on time in dehumidi cation 3330255minI 23151 U 50 Fan o time in dehumidi cation 15 15 15 0 255 min I 24 152 U 51 Hot/cold valve ON time during cycles 0000255minI 25153 U 52 Max hot/cold valve OFF time during cycles 0000255minI 26154 U 53 Min hot/cold valve OFF time during cycles 0000255minI 27155 U 54 Serial communication mode (0=Carel; 1=Modbus) 00001---I 28156 F 55 Enable cool & heat symbols in AUTOMATIC

0 symbols o 1 symbols on when called

00001---I 29157 U

56 Function of digital input 2

0 N.C.=Heating, N.O.=Cooling 1 N.C.=Cooling, N.O.=Heating

Note: DIP SWITCH 2 must be ON

11101---I 30158 U

57 Mains frequency (0 = 50Hz; 1 = 60Hz) 00001---I 31159 U 58 Probe B1 o set in cooling 0 0 0 -99 127 °C/10 A 28 28 U 59 Probe B1 o set in heating 0 0 0 -99 127 °C/10 A 29 29 U 60 Probe B1 o set in AUTOMATIC 0 0 0 -99 127 °C/10 A 30 30 U 61 Probe BT o set from terminal -30 -30 -30 -99 127 °C/10 A 31 31 U 62 Probe B2 o set in cooling 0 0 0 -99 127 °C/10 A 32 32 U 63 Probe B2 o set in heating 0 0 0 -99 127 °C/10 A 33 33 U 64 Probe B3 o set in cooling 0 0 0 -99 127 °C/10 A 34 34 U 65 Probe B3 o set in heating 0 0 0 -99 127 °C/10 A 35 35 U 69 Supervisor network address (use with RS485 serial board

only)

1110207---I 35163 F

91 Load defaults (the device must be OFF)

44 AHU 100% outside air - 0-10 V valves 45 AHU with recirculation - 0-10 V valves 46 AHU with recirculation - 3-point valves

0000255---I 57185 F

92 Manufacturer password

Note: enter manufacturer password to enable type F parameters (=Factory)

0000255---I 58186 F

95 SET TO 1: DO NOT MODIFY 11101---I 61189 U 97 3-point valve actuator travel time 120 120 120 1 255 s I 63 191 U 99 Minimum P+I movement

Minimum variation in P+I output to move valve (for 0 to 10 V and 3 point valves) and increase heater output. Expressed as a % of the total P+I output.

5550100%I 65193 U

100 Maximum valve stationary time (to unlock)

0 antistick function disabled

4440255hrsI 66194 U

101 Forced movement for antistick.

Considered as a % of the maximum travel set

20 20 20 0 100 % I 67 195 U

102 Inactivity hysteresis

If output <P102, output =0 If output >100%-P102, output =100%

0000100%I 68196 U

103 3-point damper actuator travel time 150 150 150 0 255 s I 69 197 U 104 Freecooling activation delta 0 20 20 0 255 °C /10 A 36 36 U 105 Freeheating activation delta 0 20 20 0 255 °C /10 A 37 37 U 106 Minimum cooling valve/heating valve-heater outlet

temperature (127 = function disabled)

127 18 18 -28 127 °C A 38 38 U

107 Bumpless transfer mode

0 no management of the transients for a change in

actuator, variation in P+I parameters and variation in

the set point 1 gradual activation when changing actuator 2 gradual activation when changing actuator and

gradual response to variations in P+I parameters 3 gradual act. when changing actuator, gradual

response to var. in P+I parameters & set point

11103---I 104232 U

108 Integration time (0=disabled) 0660255s*10 I 99 227 U 109 Dead band 2220255°C /10A 4343 U 110 Heating valve activation delta 0000255°C /10A 4444 U 111 Heater activation delta 30 30 30 0 255 °C /10 A 45 45 U 112 Heater hysteresis (p39=18) 5550255°C /10A 4646 U 113 Cooling valve activation delta 0000255°C /10A 4747 U 114 Damper proportional band 0 30 30 0 255 °C /10 A 39 39 U 115 Cooling valve proportional band 30 30 30 0 255 °C /10 A 40 40 U 116 Heating valve proportional band 30 30 30 0 255 °C /10 A 41 41 U 117 Heater proportional band 0000255°C /10A 4242 U

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

P Parameter Def.1 Def.2 Def.3 Min Max UOM SV type SV # Modbus® access notes

118 Fan mode

0 3 speed 1 minimum speed 2 continuous single-speed (normally used for AHUs)

2 2 2 0 2 --- I 100 228 U

119 Minimum outside damper position 0 20 20 0 100 % I 101 229 U 120 Enable antifreeze

0 Disabled 1 Enable by probe 2 Enable by digital input

2 2 2 0 2 --- I 102 230 U

121 Antifreeze activation threshold 2 2 2 -28 50 °C A 48 48 U 122 Antifreeze deactivation threshold 7 7 7 -28 50 °C A 49 49 U 123 Antifreeze time 2 2 2 1 255 min I 103 231 U 124 Unit model

0 100% outside air 1 With recirculation

0 0 1 0 1 --- I 108 236 U

125 Max. outlet temperature max (127 = function disabled) 127 28 28 -28 127 °C A 50 50 U 126 Outlet limit di erential 20 20 20 10 255 °C/10 A 51 51 U 127 Close bypass damper set point 20 20 20 0 255 °C/10 A 52 52 U

Tab.4.t

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Variables only accessible via serial connection

Variable Def. Min. Max. UOM SV type SV # Modbus® R/W

Probe B1 0 --- --- °C A 70 70 R Probe BT 0 --- --- °C A 71 71 R Probe B2 0 --- --- °C A 72 72 R Probe B3 0 --- --- °C A 73 73 R Control probe 0 --- --- °C A 74 74 R Control set point --- --- --- °C A 76 76 R Mode

0 AUTOMATIC 4 Ventilation 1 AUTOMATIC + heater 5 Heating 2 Cooling 6 Heating + heater 3 Dehumidi cation

0 0 6 --- I 70 198

Fan

0 Autofan 2 Medium 1 Minimum 3 Maximum

0 0 3 --- I 71 199

ON/OFF 0 0 1 --- I 73 201 Control probe enabled (0=BT; 1=B1) 0 0 1 --- I 74 202 R/W do not

modify Alarms 0 --- --- --- I 76 204 R Lock keypad 0 --- I 78 206 R/W do not

modify General  ags 1

1 Heater available 16 Broadcasting active 2 NOT USED 32 Sleep/Eco 4 RESERVED 64 Lock function 8 Remote control 128 RESERVED

--- --- --- --- I 79 207

General  ags 2

1 Cooling active 16 RESERVED 2 Heating active 32 RESERVED 4 Comfort active 64 RESERVED 8 Economy 128 NOT USED

I 80 208

Digital inputs & control signals

1 Input 1 (remote ON/OF) 16 Input 5 (multifunction) 2 Input 2 (remote cooling/heating) 32 Heating control signal 4 Input 3 (multifunction) 64 Cooling control signal 8 Input 4 (multifunction) 128 NOT USED

--- --- --- --- I 81 209

Sleep/Eco 0 0 1 --- I 82 210 Set point setting 0 8 32 °C I 83 211 Comfort control 0 -2 +2 °C I 84 212 General  ags 3

1 Cooling symbol 16 NOT USED 2 Heating symbol 32 NOT USED 4 RESERVED 64 NOT USED 8 Display set point/probe 128 NOT USED

--- --- --- --- I 85 213

Tab. 4.u

Note

SV type: type of variable (A=analogue, I=integer, D=digital) SV #: variable address with CAREL protocol on 485 serial board Modbus®: variable address with Modbus® protocol on 485 serial board

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

5.1 System 1

System 1 is one of the systems that can be con gured automatically by setting parameter P91 = 44 (see the paragraph on “con guration”). Suitable for small air handling units with hot water coil and cold water coil  tted with modulating valve and ON/OFF outside damper.

Features:

AHU with 100% outside air (P124=0);• Room temp. control with sensor on the “acqua” terminal;•

5. SYSTEM DIAGRAMS

Proportional hot water valve control (0 to 10 Vdc); • Proportional cold water valve control (0 to 10 Vdc); • Single-speed fan control;• ON/OFF outside damper control;• Antifreeze protection on air side by digital input;• Set point compensation function with outside probe, can be activated • by setting P22=2 and P23, P24, P25, P26≠0

Block diagram

AIR INPUT

AIR OUTPUT

NO6

NO5

NO1

DI4

DI1, DI2

DI5

NO4

T1 S1

F1 C1 C2

TH1

V1 V2

FAN

DI1, DI2

Fig. 5.a

Key: AI analogue inputs AO analogue outputs

F1  lter T1 outside probe V2 cooling coil valve C1 heating coil T2 heating coil probe V1 heating coil valve C2 cooling coil T3 outlet probe

DO digital outputs

P1, P2 pumps (conn. by installer) T4 probe on “acqua“ terminal FAN fan L line

DI digital inputs

S1 outside damper N neutral DI1 ON/OFF FU fuse DI2 cooling/heating DI3 serious alarm (not indicated) TH1 antifreeze thermostat PR di erential pressure switch

( lter alarm)

Wiring diagram

SUPPLY EXP

123456

DIP

SUPPLY EXP

MasterAria controller (HYCT000000)

Expansion board (HYVC000V00)

230 Vac

T1T2T3PR

TH1

REMOTE ON/OFF

SUMMER/ WINTER

FAN

SAFETY

acqua

(230 Vac - 50 Hz)

DI5 B1 B2 B3

No1No2No3LL NNN

GN Tx V+

GN Tx

FLAP

EXP IR

SERIAL

EXP

No7No6

No5GNNo4GN

DI4DI3DI2DI1

(*) 0...10 Vdc

(*)

DIP

123456

Fig. 5.b

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Note: The 0 to 10 Vdc outputs (NO4 and NO5) only provide the control signal to the actuators. The power supply (230 Vac or 24

Vac) is the installer’s responsibility

Table of dipswitch settings

function n. function setting position

heat,cool-enable functions 1 deactivated OFF remote cooling/heating (DI2) 2 activated ON remote lock active 3 deactivated OFF 2 coils available 4 activated ON electric heater  tted 5 deactivated OFF control probe on “acqua” terminal

6 activated ON

Tab. 5.a

Functional diagrams

100%

P116=30 P115=30

V1 V2

P01

TA (°C)

P109=2P109=2

Fig. 5.c

Important: drawing not to scale for graphics requirements.

Key:

P115 proportional band for cooling valve (°C/10) P116 proportional band for heating valve (°C/10) P109 dead band (°C/10) P01 set point TA room temperature (control probe) V1 heating valve V2 cooling valve U outputs

CTA

OFF

Fig. 5.d

Key:

AHU air handling unit AL alarm S1 outside damper t time

Description of the functions

The hot water and cold water valves are opened according to the • activation delta (default =0) and the P+I algorithm proportional bands; the ON/OFF outside damper is activated when the air handling unit is • started. It closes in the event of antifreeze alarms, activated by digital input DI4; dirty  lter alarm via di erential pressure switch connected to digital • input DI5.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

5.2 System 2

System 2 is one of the systems that can be con gured automatically by setting parameter P91 = 45 (see the paragraph on con guration). Suitable for small air handling units with hot/cold water coil, modulating outside damper, ON/OFF heat recovery bypass damper.

Features:

AHU with heat recovery unit (P124=0);•

room temp. control with sensor on the “acqua” terminal;• modulating hot/cold water valve control (0 to 10 Vdc);• single-speed fan control;• modulating outside damper control (0 to 10 Vdc);• antifreeze protection on air side by digital input;• set point compensation function with outside probe, can be activated • by setting P22=2 and P23, P24, P25, P26≠0.

Block diagram

AIR INPUT

AIR OUTPUT

REC

NO4

NO1

DI1, DI2

DI5

NO5

NO7

PR1

FAN1

FAN2

PR2

DI1, DI2

NO1

NO6

TH1

Fig. 5.e

Key: AI analogue inputs AO analogue outputs

P1 pump (conn. by installer) T1 outside probe V heating/cooling coil valve REC heat pump T2 heating/cooling coil probe S1 outside damper F1, F2  lter T3 outlet probe

DO digital outputs

C hot/cold water coil T4 probe on “acqua“ terminal FAN 1, 2 fans L line

DI digital inputs

S1 outside damper N neutral DI1 ON/OFF S2 heat recovery bypass damper FU fuse DI2 cooling/heating R electric heater DI3 serious alarm (not indicated) TH1 antifreeze thermostat PR1, PR2

di erential pressure switch ( lter alarm)

Wiring diagram

SUPPLY EXP

123456

DIP

SUPPLY EXP

MasterAria controller (HYCT000000)

Expansion board (HYVC000V00)

230 Vac

T1T2T3

TH1

REMOTE ON/OFF

SUMMER/ WINTER

FAN 2 FAN 1

SAFETY

acqua

(230 Vac - 50 Hz)

DI5 B1 B2 B3

No1No2No3LL NNN

GN Tx V+

GN Tx

FLAP

EXP IR

SERIAL

EXP

No7No6

No5GNNo4GN

DI4DI3DI2DI1

(*) 0...10 Vdc

(*)

DIP

123456

PR1

PR2

Fig. 5.f

Note: The 0 to 10 Vdc outputs ( NO4 and NO5) only provide the control signal to the actuators. The power supply (230 Vac or 24

Vac) is the installer’s responsibility.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

P01

TA (°C)

P111

P112

OFF

Fig. 5.h

Key:

P111 heater activation delta P112 heater hysteresis R heater TA room temperature (control probe)

Table of dipswitch settings

function n. function setting position

heat, cool-enable functions 1 deactivated OFF remote cooling/heating (DI2) 2 activated ON remote lock active 3 deactivated OFF 2 coils available 4 deactivated OFF electric heater  tted 5 activated ON control probe on “acqua” terminal

6 activated ON

Tab. 5.b

Functional diagrams

VFVC

P114=30 P116=30

100%

P01

TA (°C)

P109=2

P114=30 P115=30

P109=2

P119=20

Fig. 5.g

Important: drawing not to scale for graphics requirements.

Key:

P114 proportional band for damper (°C/10) S outside damper P115 proportional band for cooling valve (°C/10) TA room temperature (control probe) P116 proportional band for heating valve (°C/10) VC heating valve P109 dead band (°C/10) VF cooling valve P01 set point U outputs

Description of the functions

•

closes in the event of antifreeze alarms, activated by digital input DI4; the heat recovery unit damper is opened in cooling or heating if the • conditions are favourable (see the paragraph on the heat recovery unit); dirty  lter alarm via di erential pressure switch connected to digital • input DI5.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

5.3 System 3

System 3 is one of the systems that can be con gured automatically by setting parameter P91 = 46 (see the paragraph on con guration). Suitable for small air handling units with hot/cold water coil and outside damper with three-point actuators.

Features:

AHU with recirculation (P124=1);• room temperature control with sensor on the “acqua” terminal;• three-point hot/cold water valve control;•

single-speed fan control;• three-point outside damper control;• antifreeze protection on air side by digital input and on water side by • probe; set point compensation function with outside probe.•

Block diagram

NO6

NO4

DI5

NO7

S1_OP S1_CL

NO5

V_OP V_CL

AIR INPUT

AIR OUTPUT

DI4

TH1

NO1

DI1, DI2

FAN

DI1, DI2

Fig. 5.i

Key: AI analogue inputs AO analogue outputs

F1  lter

T1 outside probe

DO digital outputs

C heating/cooling coil T2 probe heating/cooling coil S1_OP open damper P1 pump (conn. by installer) T3 outlet probe S1_CL close damper L line T4 probe on “acqua“ terminal V_OP open valve N neutral

DI digital inputs

V_CL close valve FU fuse DI1 ON/OFF FAN fan DI2 cooling/heating DI3 serious alarm (not indicated) TH1 antifreeze thermostat PR di erential pressure switch

( lter alarm)

Wiring diagram

SUPPLY EXP

123456

DIP

SUPPLY EXP

MasterAria controller (HYCT000000)

Expansion board (HYVC000T00)

230 Vac

T1T2T3P1

V_OP

V_CL

S1_CL

S1_OP

TH1

REMOTE ON/OFF

SUMMER/ WINTER

FAN

SAFETY

acqua

(230 Vac - 50 Hz)

DI5 B1 B2 B3

No1No2No3LL NNN

GN Tx V+

GN Tx

FLAP

EXP IR

SERIAL

EXP

No5NNo6NNo7NNo4N

DI4DI3DI2DI1

DIP

123456

Fig. 5.j

Note: The 0 to 10 Vdc outputs (NO4 and NO5) only provide the control signal to the actuators. The power supply (230 Vac or 24

Vac) is the installer’s responsibility.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

Table of dipswitch settings

function n. function setting position

heat,cool-enable functions 1 deactivated OFF remote cooling/heating (DI2) 2 activated ON remote lock active 3 deactivated OFF 2 coils available 4 deactivated OFF electric heater  tted 5 deactivated OFF control probe on “acqua” terminal

6 activated ON

Tab. 5.c

Description of the functions

The hot/cold water valve is opened according to the activation delta • (default =0 ) and the P+I algorithm proportional bands; the outside damper is activated when the air handling unit starts. It • closes in the event of antifreeze alarms, activated by digital input DI4; the recirculation damper is managed with the same output as the • outside damper, as operation is complementary (the connection is the installer’s responsibility); dirty  lter alarm via di erential pressure switch connected to digital • input DI5.

Functional diagrams

VFVC

P114=30 P116=30

100%

P01

TA (°C)

P109=2

P114=30 P115=30

P109=2

P119=20

Fig. 5.k

Important: drawing not to scale for graphics requirements.

Key:

General warnings

The required applications may di er from systems 1, 2, 3. Make the • desired settings by modifying the parameters shown in columns “Def1, Def2 and Def.3” respectively of the table of parameters; the digital signals cannot be checked. If the digital input has an • important protection function, such as the antifreeze function, it is recommended to con gure the input so that an alarm is generated when there is no signal (not wired). Set as normally closed; if control is unstable, increase the proportional band and the integration • time.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

7. TECHNICAL SPECIFICATIONS AND PURCHASE CODES

7.1 MasterAria electrical panel

Assembly and installation instructions

Power supply:

Three-phase model Voltage: 400 V~. 50/60 Hz; Power: 4 kW Single-phase model Voltage: 230 V~. 50/60 Hz; Power: 1.5 kW

Switching power 10 kA Insulation guaranteed by the power supply: (for both models)

insulation from very low voltage parts: reinforced, 6 mm in air, 8 mm on surface, 3750 V insulation.insulation

from relay outputs: basic, 3 mm in air, 4 mm on surface, 1250 V insulation Connections: Panel power supply 0.75 to 10 mm Contactor connection 0.75 to 2.5 mm Terminal connection 0.2 to 4 mm Motor protector connection 1 to 25 mm Probes up to 10 m maximum Digital inputs 30 m (AWG 14-22) LCD panel - tLAN communication 30 m (AWG 14-22) Serial board communication see the corresponding paragraph Power supply 5 m (AWG 14-22) Power outputs (relays) 30 m (AWG 14-22) Plastic case: dimensions 200 x 240 x 87 mm; Installation: wall-mounting (with plastic case): by fastening screw (spacing 162.5 x 218.5); panel assembly (with plastic

faceplate): by fastening screw (spacing 159.5 x197.5); open board: main board by fastening screw and front

board by fastening screw. The controller must be protected against accidental contact to avoid electric shock. Operating conditions: with plastic case = -10T50 °C; <90% rH non-condensing Storage conditions: -20T80 °C, humidity 80% rH non-condensing Front panel index of protection: with plastic case: IP54 Environmental pollution: 2 (normal) PTI of the insulating materials: printed circuits 250, plastic and insulating materials 175. Period of stress across the insulating parts: long Category of resistance to  re: category D & category B (UL 94-V0) Class of protection against voltage surges: category 2 Type of action and disconnection: 1B relay contacts (microswitching) Classi cation according to protection against electric shock:

class 2 when suitably integrated

Device designed to he hand-held or integrated into equipment designed to be hand-held:

Cleaning the front panel of the instrument: only use neutral detergents and water

Tab. 7.a

Note: the correct sizing of the power and connection cables

between the instrument and the loads is the installer’s responsibility. In max. load and max. operating temp. conditions, the cables used must be suitable for operation up to 105 °C.

Protection against electric shock and maintenance warnings

The system made up of the control board (HYCT0*) and the other optional cards (HYVC000R0*, HYVC00T0*, HYVCT00M0*, pCO serial boards etc.)

represents a control device to be integrated into class 1 or 2 appliances. The class relating to protection against electric shock depends on the way the control device is integrated into the unit made by the manufacturer. Disconnect the power supply before working on the board during assembly, maintenance and replacement operations. The protection against short-circuits must be guaranteed by the manufacturer of the appliance that the control device is integrated into or by the installer.

6. NONHYDRONIC SUPERVISORY SYSTEMS

The RS485 serial board (code HYSC00F0P0) can be used to communicate with custom supervisory systems, such as PlantVisor. The same accessory can be used to install MasterAria in systems based on Modbus® (enable Modbus® with parameter P54=1), see paragraph 3.8.

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

7.2 Main control board

Warnings valid for all boards:

All installation and maintenance operations must be carried out with • the unit o ; Use shielded cables for the serial connections: 2 wires + shield for •

Inputs-outputs

Terminal Meaning

L Line N Neutral No1 Minimum fan speed (normally open). Voltage output (L) No2 Medium fan speed (normally open). Voltage output (L) No3 Maximum fan speed (normally open). Voltage output (L) GN, Tx, V+ LCD panel connection GN, Tx NOT USED DI1, DI2, DI3, DI4, DI5 Digital inputs, voltage-free contacts:

1 remote ON/OFF 4 con gurable 2 remote cooling/heating 5 con gurable 3 con gurable

B1 Con gurable probe B2 Con gurable probe B3 Con gurable probe DIP Con guration dipswitch:

1 ON Enable heat/cool enable (probe B2) 4 ON Fan coil 4 pipe (OFF=2 pipe) 2 ON Enable remote cooling/heating 5 ON Heater  tted 3 ON Limited functions 6 ON Control on terminal probe

EXP Connector for the expansion board (5-wire cable) FLAP NOT USED SUPPLY EXP Expansion board power supply connector (2-wire cable) IR NOT USED JS3 Connector for inserting optional power supply for compatibility with pCO serial boards (future use) SERIAL Connector for inserting optional serial boards

Tab. 7.b

Technical speci cations

Power supply 230 Vac, range -15 to +10%; 50/60 Hz; Maximum power input (excluding relay loads): 4VA Screw termninals (ext. unit power supply) max voltage: 230 V; Cable cross-section: 14-22 AWG

The current input from the mains (sum of the current inputs of the loads plus the external module) must not exceed 6 A.

Relay outputs No1, No2, No3 maximum current: VDE0631: 6 (2) A, 250 Vac

minimum interval between switching cycles (each relay): 12 s (the manufacturer of the unit that the device is integrated into must guarantee the correct con guration to respond to this speci cation) type of relay action-microswitching: 1C insulation between low (relay outputs) and very low voltage parts: Reinforced

Digital inputs electrical standard: voltage-free contact

closing current referred to earth: 5 mA

maximum closing resistance: 50  Analogue inputs B1, B2, B3: CAREL NTC temperature sensors (10 k at 25 °C). Index of protection IP00 Storage conditions -20T80 °C, humidity 80% rH non-condensing Operating conditions 0T60 °C, humidity <90% rH non-condensing Pollution normal Category of resistance to heat and  re D PTI of the insulating materials for all materials PTI≥250 Software class and structure A Period of stress across the insulating parts long

Tab. 7.c

Maximum cable lengths:

probes: 10 m digital inputs: 30 m (AWG 14-22) LCD panel - tLAN communication 30 m (AWG 14-22) serial board communication see the corresponding instruction

sheet power supply 5 m (AWG 14-22) power outputs (relays) 30 m (AWG 14-22)

Tab. 7.d

Functional characteristics

Resolution of analogue inputs:

temperature probes:

interval -40 to 80 °C, 0.1 °C Temperature measurement error:

interval -20 to 25 °C, ±0.5 °C (excluding probe)

interval 25 to 30 °C, ±1 °C (excluding probe)

interval 30 to 90 °C, ±1.5 °C (excl. probe)

Tab. 7.e

Connections (See wiring diagram)

networks with optional serial boards. Do not use star connections (use chain connections). Connect the shield to the GN terminal; Avoid short-circuits between GN and V+ (power supply to “acqua”

•

terminal); Adopt precautions against electrostatic discharges when handling the • board (e.g.: antistatic bracelet); Connect the GN terminal to earth.•

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

7.3 Expansion board with 2 x 0-10 Vdc outputs/2 relays

Inputs-outputs

Terminal Meaning

SUPPLY EXP power supply connector (connect by 2-wire cable to the main board) EXP input signal connector (use 5-wire cable) GN input signal connector (use 5-wire cable No4 multifunction 0 to 10 Vdc output: see the outputs section (con gurable by parameter P39) No5 multifunction 0 to 10 Vdc output: see the outputs section (con gurable by parameter P40) No6 multifunction relay output: see the outputs section (con gurable by parameter P41). Voltage-free contact No7 multifunction relay output: see the outputs section (con gurable by parameter P42). Voltage-free contact

Tab. 7.f

Maximum cable lengths 0 to 10 Vdc outputs No4, No5: 5 m. Maximum cable lengths for relay outputs (voltage-free contacts) N06, N07: 5 m.

Warnings:

avoid short-circuits between terminals No4, No5 and the GN • terminals. keep the power cable (relay outputs separate) from the cables running • to the 0 to 10 Vdc outputs.

Technical speci cations

Power supply 230 Vac, range –15 to +10%; 50/60 Hz; maximum power input: 1.5 VA Screw termninals max voltage: 250 V

cable size: 14-22 AWG

max current: see outputs No4-7 0 to 10 Vdc outputs No4, No5 minimum impedance of the 0 to 10 Vdc actuator input stage (damper, valve, …): 10 KOhm Relay outputs No6, No7 (voltage-free contacts) maximum current at 250 Vac: - EN60730: resistive 2 A, inductive: 2 A cos(j)=0.4 60000 cycles

type of relay action-microswitching: 1C Insulation insulation between the relay outputs No6 and No7: reinforced

insulation between the relay outputs No6, No7 and very low voltage parts: reinforced

insulation between 0 to 10 Vdc outputs and relay outputs No6, No7: reinforced Index of protection IP00 Storage conditions -20T80 °C, humidity 80% rH non-condensing Operating conditions 0T60 °C, humidity <90% rH non-condensing Pollution normal Category of resistance to heat and  re D PTI of the insulating materials for all materials PTI≥250 Period of electrical stress across the insulating parts

long

Tab. 7.g

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

7.4 Expansion board with 4 relays (accessory)

Inputs-outputs

Terminal Meaning

SUPPLY EXP power supply connector (connect by 2-wire cable

to the main board)

EXP MasterAria input signal connector(use 5-wire

cable) N neutral No4 multifunction

voltage output (L) No5 multifunction

voltage output (L) No6 voltage free contact No7 voltage free contact

Tab. 7.h

Maximum cable lengths for voltage outputs No4 & No5: 5 m Maximum cable lengths for outputs No6 & No7: 30 m (as voltage-free contact), 5 m (as control signal to power any load).

Technical speci cations

Power supply 230 Vac, range –15 to +10%; 50/60 Hz; maximum power input: 1.5 VA Screw termninals max voltage: 230 V

cable cross-section: 14-22 AWG the current input from the mains (sum of the current inputs of the loads, the main board, the expansion and

the external module) must not exceed 6 A. 0 to 10 Vdc outputs No4, No5 minimum impedance of the 0 to 10 Vdc actuator input stage (damper, valve,…): 10 KOhm Relay outputs No4, No5, No6, No7 maximum current at 250 Vac: - EN60730: resistive 2 A, inductive: 2 A cos(j)=0.4 60000 cycles

type of relay action-microswitching: 1C

For the voltage outputs No4 and No5 respect the maximum limits described in the  eld “screw terminals”.

minimum interval between switching cycles (each relay): 12 s (the manufacturer of the unit that the device is

integrated into must guarantee the correct con guration to respond to this speci cation)

type of relay action-microswitching: 1C Insulation insulation between low (relay outputs) and very low voltage parts: reinforced

insulation between outputs with voltage signal No4, No5 and outputs No6, No7: reinforced

insulation between outputs No6 and No7: reinforced.

If using serial boards, output No7 can be limited to very low voltage only. See the user manual. Index of protection IP00 Storage conditions -20T80 °C, humidity 80% rH non-condensing Operating conditions 0T60 °C, humidity <90% rH non-condensing Pollution normal Category of resistance to heat and  re D PTI of the insulating materials for all materials PTI≥250 Period of electrical stress across the insulating parts

long

Tab. 7.i

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

7.5 Expansion board with 4 triacs (accessory)

Inputs-outputs

Terminal Meaning

SUPPLY EXP power supply connector (connect by 2-wire cable to

the main board) EXP input signal connector (use 5-wire cable) N neutral No4 multifunction TRIAC voltage output: see the outputs

section (con gurable by parameter P39) No5 multifunction TRIAC voltage output: see the outputs

section (con gurable by parameter P40) No6 multifunction TRIAC voltage output: see the outputs

section (con gurable by parameter P41) No7 multifunction TRIAC voltage output: see the outputs

section (con gurable by parameter P42)

Tab. 7.j

Maximum cable lengths for voltage outputs No4, No5, N06, N07: 5m.

Technical speci cations

Power supply 230 Vac, range –15 to +10%; 50/60 Hz; maximum power input (excluding triac loads): 1.5 VA Screw termninals max voltage: 250 V

cable size: 14-22 AWG max current: see outputs No4-7

Voltage outputs No4, No5, No6, No7 maximum current at 250 Vac (for each voltage output): 0.3 A.

type of triac action: electronic disconnection

Insulation insulation between low (triac outputs) and very low voltage parts: reinforced

insulation between triac voltage outputs No4,No5, No6,No7: functional Index of protection IP00 Storage conditions -20T80 °C, humidity 80% rH non-condensing Operating conditions 0T60 °C, humidity <90% rH non-condensing Pollution normal Category of resistance to heat and  re D PTI of the insulating materials for all materials PTI≥250 Period of electrical stress across the insulating parts

long

Tab. 7.k

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

7.6 Expansion board with 2 triacs/2 relays (accessory)

Inputs-outputs

Terminal Meaning

SUPPLY EXP power supply connector (connect by 2-wire cable to

the main board)

EXP input signal connector (use 5-wire cable N neutral

No4 multifunction TRIAC voltage output: see the outputs

section (con gurable by parameter P39)

No5 multifunction TRIAC voltage output: see the outputs

section (con gurable by parameter P40)

No6 multifunction relay output, 2 A resistive: see the

outputs section (con gurable by parameter P41). Voltage-free contact

No7 multifunction relay output, 10 A resistive: see the

outputs section (con gurable by parameter P42). Voltage-free contact

Tab. 7.l

Maximum cable lengths for voltage outputs No4, No5: 5m Maximum cable lengths for relay outputs N06, N07: 5m

Technical speci cations

Power supply 230 Vac, range –15 to +10%; 50/60 Hz; maximum power input (excluding triac loads): 1.5 VA Screw termninals max voltage: 250 V

cable size: 14-22 AWG max current: see outputs No4-7

Voltage outputs No4, No5 maximum current at 250 Vac (for each voltage output): 0.3 A.

type of triac action: electronic disconnection Relay output No6 maximum current at 250 Vac: EN60730: Resistive 2 A, Inductive: 2 A cos()=0.4 60000 cycles Relay output No7 maximum current at 250 Vac: EN60730: Resistive 10 A, 100000 cycles

type of relay action-microswitching: 1 C Insulation insulation between low (triac outputs) and very low voltage parts: reinforced

insulation between triac voltage outputs No4, No5: functional

insulation between triac voltage outputs No4, No5 and relay outputs No6, No7: reinforced

insulation between outputs the two relay outputs No6, No7: reinforced Index of protection IP00 Storage conditions -20T80 °C, humidity 80% rH non-condensing Operating conditions 0T60 °C, humidity <90% rH non-condensing Pollution normal Category of resistance to heat and  re D PTI of the insulating materials for all materials PTI≥250 Period of electrical stress across the insulating parts

long

Tab. 7.m

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

7.7 “Acqua” remote terminal (accessory)

Inputs/outputs

Terminal Meaning

GN use for connection to GN terminal and with the cable shield Tx use for connection to Tx terminal V+ use for connection to V+ terminal

Tab. 7.n

Maximum shielded connection cable length: 30 m

Technical speci cations

Power supply 8 to 25 Vdc 8 to 25 Vdc (supplied by the main board) Insulation insulation between low (relay outputs) and very low voltage parts: reinforced

(guaranteed by main board and by shielded connection cable) Index of protection IP30 Storage conditions -20T80 °C, humidity 80% rH non-condensing Operating conditions 0T60 °C, humidity <90% rH non-condensing Pollution normal Category of resistance to heat and  re D PTI of the insulating materials for all materials PTI≥250 Period of electrical stress across the insulating parts

long

Tab. 7.o

7.8 RS485 serial board (accessory)

Inputs/outputs

Terminal Meaning

1-GN 2-RX+/TX+ 3- RX-.TX-

RS485 connection

SERIAL 8-pin connector for power supply and

communication signal from main board to RS485 network

7 -pin connector reserved for future use

Tab. 7.p

Warnings:

Use shielded cables for the serial connections: 2 wires + shield, do not • use star connections (use chain connections); Connect the shield to the GND terminal and insert the two 120 ohm

•

terminal resistors at the ends of the RS485 network (Fig. 7.a); The serial board is not optically isolated, each device must be supplied • by a dedicated transformer and must not be earthed (the transformer is already included on the MasterAria main board).

GND

T+

T-

CVSTDUM0R0

GND T+ T-

I/O BOARD

GND T+ T-

...n

1..

Fig, 7.a

Technical speci cations

Power supply 8 to 38 Vdc; maximum power input: 250 mW Cable size use twisted pair plus shield, AWG 20/22, min. cross-section 0.2 - max 2.5 mm Insulation board not optically isolated Storage conditions -20T80 °C, humidity 80% rH non-condensing Operating conditions 0T60 °C, humidity <90% rH non-condensing Pollution normal Index of protection IP00 Category of resistance to heat and  re D PTI of the insulating materials for all materials PTI≥250 Period of electrical stress across the insulating parts

long

Dimensioni 60x31x10, (60x31: board; 10: component width)

Tab. 7.q

ENG

MasterAria +030220481 - rel. 1.0 - 12.11.2007

7.9 Codes

code description

CTEM700000 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 0.1 to 0.16 A CTEM700001 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 0.16 to 0.25 A CTEM700002 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 0.25 to 0.40 A CTEM700003 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 0.40 to 0.63 A CTEM700004 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 0.63 to 1 A CTEM700005 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 1 to 1.6 A CTEM700006 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 1.6 to 2.5 A CTEM700007 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 2.5 to 4 A CTEM700008 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 4 to 6.3 A CTEM700009 single-phase electrical panel for 1.5 kW fan motor with adjustable overload protector 6.3 to 10 A CTEDB00000 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 0.1 to 0.16 A CTEDB00001 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 0.16 to 0.25 A CTEDB00002 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 0.25 to 0.40 A CTEDB00003 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 0.40 to 0.63 A CTEDB00004 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 0.63 to 1 A CTEDB00005 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 1 to 1.6 A CTEDB00006 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 1.6 to 2.5 A CTEDB00007 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 2.5 to 4 A CTEDB00008 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 4 to 6.3 A CTEDB00009 three-phase electrical panel for 4 kW fan motor with adjustable overload protector 6.3 to 10 A HYCT000000 main control board HYPA001000 “acqua” remote terminal (single pack) HYVC000R00 expansion board with 4 relay outputs HYVC000T00 expansion board with 4 triac outputs HYVC000V00 expansion board with 2 x 0 to 10 Vdc outputs and 2 relay outputs HYVC000M00 expansion board with 2 triac outputs and 2 relay outputs HYSC00F0P0 RS485 serial board PSOPZKEY00 programming key with battery PSOPZKEYA0 programming key with power supply HYKA000000 programming key adapter NTC010HP02 HP NTC sensor with JST connector L= 1 m single pack NTC030HP02 HP NTC sensor with JST connector L= 3 m single pack NTC050HP02 HP NTC sensor with JST connector L= 5 m single pack NTC010HP0R HP NTC sensor with JST connector L= 1 m pack of 50 pcs NTC016HP0R HP NTC sensor with JST connector L= 1.6 m pack of 50 pcs NTC030HP0R HP NTC sensor with JST connector L= 3 m pack of 50 pcs NTC050HP0R HP NTC sensor with JST connector L= 5 m pack of 50 pcs

Tab. 7.r

7.10 Software revisions

Below is a table with the product software revisions. The software version can be viewed by accessing parameter 0 (e.g. 10 = 1.0).

revision note

1.2

1.3 The parameters that are not pertinent to the application are no longer visible. Saturation limits (set point) added to the compensation algorithm.

Notes

CAREL S.p.A.

Via dell’Industria, 11 - 35020 Brugine - Padova (Italy) Tel. (+39) 049.9716611 - Fax (+39) 049.9716600 e-mail: carel@carel.com - www.carel.com

Agenzia / Agency:

MasterAria +030220481 rel. 1.0 - 12.11.2007 CAREL si riserva la possibilità di apportare modiﬁ che o cambiamenti ai propri prodotti without alcun preavviso.

Carel MasterAria User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual