Ferroli RMA2 HE VB 40.1, RMA2 HE VP 22.1, RMA2 HE VB 22.1, RMA2 HE VP 19.1, RMA2 HE VB 26.1 Installation And Operation Manual

...

RMA2 HE

AIR-WATER CHILLERS AND HEAT PUMPS FOR OUTDOOR INSTALLATION

INSTALLATION AND OPERATION MANUAL

The manufacturer declines all the responsabilities regarding inaccuracies contained in this manual, if due to printing or typing mi-

stakes. The manufacturer reserves the right to apply changes and improvements to the products at any time without notice.

Dear Customer, Thank you for having purchased a FERROLI product. It is the result of many years of experiences and of particular research studies and has been made with top quality materials and advanced technologies. The CE mark guarantees that the products satisfy all the applicable European Directives. The qualitative level is kept under constant control and FERROLI products therefore offer SAFETY, QUALITY and RELIABILITY.

Due to the continuous improvements in technologies and materials, the product specication as well as performances are subject to

variations without prior notice.

Thank you once again for your preference FERROLI S.p.A

TABLE OF CONTENTS

GENERAL FEATURES ......................................................................................4

General specifications ....................................................................................4

Declaration of conformity ..................................................................................4

Unit dataplate...........................................................................................4

Unit description .........................................................................................5

Unit identification code....................................................................................5

Description of components.................................................................................6

Control system ..........................................................................................7

Versions ...............................................................................................7

ACCESSORIES AND OPTIONAL EQUIPMENT...................................................................8

Options................................................................................................8

Accessories ............................................................................................9

TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Technical data ..........................................................................................10

NET NOMINAL performances - Base setting up (AB) - Standard plants - EUROVENT certified data .......................11

NET NOMINAL performances - Base setting up (AB) - Radiant plants ...............................................11

NET NOMINAL performances - Low noise setting up (AS) - Standard plants - EUROVENT certified data ...................12

NET NOMINAL performances - Low noise setting up (AS) - Radiant plants ...........................................12

COOLING performances ..................................................................................13

HEATING performances ..................................................................................14

BR - BP UNIT..............................................................................................15

Corrective factors ........................................................................................15

NOISE LEVELS ............................................................................................16

ELECTRICAL DATA ........................................................................................17

Electrical data...........................................................................................17

OPERATING LIMITS ........................................................................................18

WATER PRESSURE DROP ..................................................................................19

WORKING HEAD...........................................................................................20

DIMENSIONAL AND PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Overall dimensions.......................................................................................22

Minimum operating area ..................................................................................22

Weights ...............................................................................................23

RECEPTION AND POSITIONING ..............................................................................24

Receiving ..............................................................................................24

Positioning .............................................................................................24

HYDRAULIC CONNECTIONS.................................................................................25

General rules ...........................................................................................25

Protection devices .......................................................................................25

Tips for a successful installation ............................................................................25

Water component for corrosion limit .........................................................................26

Precautions for the Winter .................................................................................26

Air vent and water drain ...................................................................................26

Maximum volume of water in the system with wet module ........................................................26

ELECTRICAL CONNECTIONS ................................................................................27

Electrical connections ....................................................................................27

R410A PROTECTION DEVICES...............................................................................28

REFRIGERANT FLOW DIAGRAM .............................................................................29

IR unit.................................................................................................29

IP unit.................................................................................................29

CONTROL SYSTEM ........................................................................................30

Control system ..........................................................................................30

Menu structure ..........................................................................................32

Inputs and outputs .......................................................................................33

Controller technical data ..................................................................................33

Alarms ................................................................................................34

Alarms table ............................................................................................35

Functions available for the user .............................................................................36

Serial communication.....................................................................................37

Probes characteristics ....................................................................................38

INVERTER ................................................................................................39

Operating setting procedure................................................................................39

Alarm .................................................................................................39

START UP ................................................................................................42

Start up................................................................................................42

Preliminary operation .....................................................................................42

SAFETY AND MAINTENANCE................................................................................43

Basic safety rules........................................................................................43

General recommendations about the R410A refrigerant used......................................................44

General Rules for Maintanance .............................................................................46

Routine maintenance .....................................................................................46

GENERAL FEATURES

Declaration of conformity

Unit dataplate

The figure shows the fields reported on the unit dataplate :

The company hereby declares that the machine in question complies with the matters prescribed by the following Directives:

• Machine Directive 2006/42/CE

• Directive governing pressurized vessels (PED) 97/23/CE

• Electromagnetic compatibility Directive (EMC) 2004/108/CE

• Low voltage Directive (LVD) 2006/95/CE

Codice Code

Rev

Ferroli Spa Via Ritonda 78/A

(VR) Italy

A - Trademark B - Model B1 - Code C - Serial number D - Capacity in cooling E - Capacity in heating (heat pump) F - Power input in cooling G - Power input in heating (heat pump) H - Reference standard I - Power supply L - Maximum absorbed current M - Refrigerant type and charge weight N - Weight empty unit O - Sound pressure level at 1 metre P - IP protection level Q - Maximum pressure - high pressure side R - Maximum pressure - low pressure side S - PED certification body

General specifications

• This manual and the wiring diagram supplied with the unit must be kept in a dry place and ready to hand for future consultation when required.

• This manual has been compiled to ensure that the unit is installed in the correct way and to supply comprehensive information about how to correctly use and service the appliance. Before proceeding with the installation phase, please carefully read all the

information in this manual, which describes the procedures required to correctly install and use the unit.

• Strictly comply with the instructions in this manual and conform to the current safety standards.

• The appliance must be installed in accordance with the laws in force in the country in which the unit is installed.

• Unauthorized tampering with the electrical and mechanical equipment will VOID THE WARRANTY.

• Check the electrical specifications on the identification plate before making the electrical connections. Read the instructions in the specific section where the electrical connections are described.

• If the unit must be repaired for any reason, this must only be done by a specialized assistance center recognized by the manufacturer and using geuine spare parts.

• The manufacturer also declines all liability for any damage to persons or property deriving from failure of the information in this manual to correspond to the actual machine in your possession.

• Proper uses: this series of chillers is designed to produce cold or hot water for use in hydronic systems for conditioning/ heating purposes. The units are not suitable for the production of domestic hot water. Any use differing from this proper use or beyond the operating limits indicated in this manual is forbidden unless previously agreed with the manufacturer.

• The prevention of the risk of fire at the installation site is the responsiblity of the end user.

CONTAINS FLUORINATED GREENHOUSE GASES COVERED BY THE KYOTO PROTOCOL:

- R410A (GLOBAL WARMING POTENTIAL GWP = 2088)

IP 26.1 VB AB 0M5

GENERAL FEATURES

Unit description

This series of air-water chillers and heat pumps satises the cooling and heating requirements of residential plants of small and medium size. All the units are suitable for outdoor installation and can be ap-

plied to fan coil plants, radiant oor plants and high efciency

radiators plants. The refrigerant circuit, contained in a compartment protected

from the air ow to simplify the maintenance operations, is

equipped with scroll compressor mounted on damper supports, brazed plate heat exchanger, thermostatic expansion valve, re-

verse cycle valve, axial fans with safety protection grilles, nned coil made of copper pipes and aluminium louvered ns. The cir-

cuit is protected by high and low pressure switches and differential pressure switch on the plate heat exchanger. The plate heat exchanger and all the hydraulic pipes are thermally insulated in order to avoid condensate generation and to reduce thermal losses. All the units can be equipped with variable speed fans control

that allows the units to operate with low outdoor temperatures in cooling and high outdoor temperature in heating and permits to reduce noise emissions in such operating conditions. The low noise acoustic setting up (AS) is obtained, starting from the base setting up (AB), reducing the rotational speed of the

fans and mounting sound jackets on the compressors.

All the units are supplied with an outdoor temperature sensor, already installed on the unit, in order to realize the climatic control. All the units are provided with a phase presence and correct sequence controller device. All the units are accurately built and individually tested in the factory. Only electric and hydraulic connections are required for installation.

Unit identification code

The codes that identify the units and the meaning of the letters used are described below.

Unit type

IR - Unit suitable for hydronic plant installation operating as chiller IP - Unit suitable for hydronic plant installation operating as reversible heat pump BR - Unit suitable for hydronic plant installation with brine solutions operating as chiller BP - Unit suitable for hydronic plant installation with brine solutions operating as reversible heat pump

Power supply

5 - 400 V - 3N - 50 Hz

Operating range

M - Medium temperature. The unit is suitable to be installed in temperate climates.

Refrigerant type

0 - R410A

Acoustic setting up

AB - Base setting up AS - Low noise setting up

Unit version

VB - Base version VP - Pump version VA - Tank version

N° compressors

Unit model

RMA2 HE

GENERAL FEATURES

Description of components

External structure. Basement, supporting structure and lateral

panels are made of galvanized and painted sheet-steel (colour RAL 7035) to guarantee good resistance to atmospheric agents. Accessibility to internal parts is possible removing the frontal panel. For extraordinary manteinances also the rear panel can be removed.

Refrigerant circuit. It is contained inside a compartment separated from the air flow to simplify maintenance and control operations.

The hermetic scroll compressor (1) is mounted on damper supports and is protected against overtemperatures and overcurrents. It is equipped with an electrcal heater, that is activated when the compressor turns off, to keep the compressor crankcase oil temperature high enough to prevent migration of the refrigerant during winter stops and to evaporate any liquid present in the crankcase, in order to prevent possible liquid rushes on starting (only heat pump units, accessory for cooling only units).

The plant side heat exchanger (2) is a brazed stainless steel plate heat exchanger, properly insulated to avoid condensate generation and to minimize thermal losses, and protected by a differential pressure switch that detects whatever water flow lack. It is moreover protected against freeze danger by an antifreeze electrical heater.

The source side heat exchanger (3) is a finned coil realized with grooved copper pipes and aluminium fins with notched profile to increase the heat exchange coefficient. A tray is obtained in the basement to collect the condensate generated in heating mode.

The expansion device (4), a thermostatic expansion valve with

external equalizer, allows the unit to adjust itself to the different

operating conditions keeping steady the set superheating.

The refrigerant circuit of each unit contains moreover solid core hermetic filter dryer (5) to restrain impurity and moisture

residuals that could be present in the circuit, high and low pressure switches in order to assure the compressor to operate inside the permitted limits, 4 way reverse cycle valve (6) to allow operating mode change reversing the refrigerant flow (only heat pump models), liquid receiver (7) to compensate the different refrigerant charge required in heating and in cooling mode (only heat pump models) and pressure connections SAE 5/16” - UNF 1/2” - 20 equipped with pin, gasket and blind nut, as required for the use of R410A refrigerant (they allow the complete check of the refrigerant circuit: compressor inlet pressure, compressor outlet pressure and thermostatic expansion valve upstream pressure).

The axial fans (8) are contained in a sheet nozzle and are equipped with a safety grille. The fans rotational speed can be modulated continuosly by an inverter (option) to control the condensation pressure (in cooling) and the evaporation pressure (in heating) in order to extend the operating limits of the unit and to reduce noise emissions.

Hydraulic circuit. All the pipes are thermally insulated to avoid condensate generation and minimize thermal losses. The circuit can be equipped with different kind of circulation pump (option). In that case the circuit is also equipped with expansion vessel and air vents. It is also possible to integrate inside the unit a buffer tank arranged as buffer on the flow towards the plant (option). In that case the circuit is equipped not only with expansion vessel and air vents, but also with safety valve, automatic air vent and drain cock.

Electrical panel. It contains all the power, control and security components necessary to guarantee the unit to work properly. The unit is managed by a microprocessor controller to which all the electrical loads and the control devices are connected. The user interface, placed on the frontal panel, allows to view and to modify, if necessary, all the parameters of the unit.

All the units are supplied with an outdoor temperature sensor, already installed on the unit, in order to realize the climatic control.

GENERAL FEATURES

Control system

The unit is managed by a microprocessor controller to which, through a wiring board, all the electrical loads and the control devices are connected. The user interface is realized by a display and four buttons that allow to view and, if necessary, modify all the operating parameters of the unit. It's available, as an accessory, a remote control that reports all the functionalities of the user interface placed on the unit.

The main functions available are :

- water temperature management (through set point

adjustment)

- adaptive function

- climatic control in heating and in cooling mode (automatic set

point adjustment according to outdoor air temperature)

- dynamic defrost cycle management according to outdoor air temperature

- alarm memory management and diagnostic

- fans management by means of continuous rotational speed control

- pump management

- integrative electrical heaters management in heating mode (2 step logic)

- compressor and pump operating hours recording

- serial communication through Modbus protocol

- remote stand by

- remote cooling-heating

- general alarm digital output

Versions

Each model can be supplied in three different versions to satisfy the application requirements of the plants. The unit is always supplied assembled, wired and factory tested.

The version is automatically identified by the option "Storing and pumping module" selected.

Base Version - VB

The unit does not contain neither circulating pump nor tank. Therefore a proper water flow through the plate heat exchanger must be guaranteed to prevent internal safety devices activation. In any case the pump, if properly sized, can be connected to the electrical panel of the unit and managed by the controller of the unit.

Pump Version - VP

The unit contains a circulating pump, air vents, expansion vessel and drain cock.

Tank Version - VA

The unit contains a tank (arranged as buffer on the flow towards the plant), safety valve, circulating pump, air vents, expansion vessel and drain cock. The tank is also arranged for the installation of antifreeze or integrative electrical heaters.

°C

mode

disp

ACCESSORIES AND OPTIONAL EQUIPMENT

Options

Storing and pumping module

Standard pump Allows the circulation of the water on the plant side.

High head pump

Allows the circulation of the water on the plant side and guarantees a higher available static head, suitable for high pressure drop plants.

Modulating pump

Tank and standard pump

Allows the circulation of the water on the plant side. The thermal inertia of the buffer tank allows to reduce the number of compressor starts and to guarantee a more stable flow temperature.

Tank and high head pump

Allows the circulation of the water on the plant side and guarantees a higher available static head, suitable for high pressure drop plants. The thermal inertia of the buffer tank allows to reduce the number of compressor starts and to guarantee a more stable flow temperature.

Tank and modulating pump

Allows the circulation of the water on the plant side with the possibility to set the rotational speed of the pump in order to get the requested flow rate without the necessity to install other setting devices. The thermal inertia of the buffer tank allows to reduce the number of compressor starts and to guarantee a more stable flow temperature.

Electrical heaters

Antifreeze

Activated together with the antifreeze electrical heater of the plate heat exchanger, it has the task to keep the water in the buffer tank at a temperature high enough to avoid ice generation during winter.

Integrative

Integrate or replace the heating power supplied by the heat pump and are managed by the unit controller with a 2 step logic. They are also activated as antifreeze electrical heaters. Available only for the VA version.

Soft starter Reduces the compressor start current.

Compressor power factor correction

Allows to reduce the phase shift between the absorbed current and the power supply voltage keeping it above the value of 0,9.

Fans control

Modulating control (condensation / evaporation control)

The fans rotational speed can be modulated continuosly by an inverter to control the condensation pressure (in cooling) and the evaporation pressure (in heating) in order to extend the operating limits of the unit and to reduce noise emissions.

Electrical loads protection

Fuses Allows to protect the electrical loads with fuses.

Thermal magnetic circuit breakers

Allows to protect the electrical loads with thermal magnetic circuit breakers simplifying the maintenance operations.

Hydraulic scheme

VB unit VA unit

VP unit

ITEM DESCRIPTION

PUMP

DIFFERENTIAL PRESSURE WATER

STORAGE TANK

WATER DRAIN VALVE

VALVOLASFIATO AIR

SIW

PROBE WATER INLET

HEAT EXCHANGER

SUW

PROBE WATER OUTLET

EXPANSION TANK

SAFETY VALVE

T U O

SUW

SIW

SUW

SIW

VB VA VP

N I

T U O

P S

F S

A S

S V

N I

SUW

SIW

SUW

SIW

T U O

P S

F S

A S

S V

N I

SUW

SIW

TUO

SUW

SIW

TUO

ACCESSORIES AND OPTIONAL EQUIPMENT

Rubber vibration dampers

Allow to reduce the transmission to the unit support plane of the mechanical vibrations generated by the compressor and by the fans in their normal operating mode.

Coil protection grille Protects the external surface of the finned coil..

Remote control

It is suitable for wall mounting and reports all the control and visualization functions available on the user interface placed on the unit. It therefore allows the complete remote control of the unit.

Modbus serial interface on RS485

It allows to communicate with the unit controller and to view the operating conditions of the unit through Modbus communication protocol. The RS485 serial line ensures the signal quality up to distances of about 1200 meters (that can be extended by means of proper repeaters).

Programmer clock

It allows the unit to be turned on and off according to a set program, through the digital input available on the unit wiring board (remote stand by).

Phase sequence and voltage controller

It checks not only the presence and correct order of the power supply phases but also the voltage level on each phase and avoid the unit to operate with voltage levels outside the permitted limits.

Water flow switch

Allows to detect the water flow lack through the plate heat exchanger and operates as an integration of the protecion offered by the differential pressure switch (standard).

Coil protection grille Protects the external surface of the finned coil..

Coils protection kit (for transport)

It is a sheet of polystyrene which increases protection of the finned coil during transport.

Casing Kits protection (for transport)

Consisting of 4 profiles cardboard that increase the protection of the casing of the unit during transport.

Modbus serial interface on RS485

Phase sequence and voltage controller

It checks not only the presence and correct order of the power supply phases but also the voltage level on each phase and avoid the unit to operate with voltage levels outside the permitted limits.

High and low pressure gauges

2 pressure gauges allow visualization of high and low refrigerant gas pressure.

Pressure transducer*

It consists of a transducer, which allows operation of the control condensation, evaporation and defrost by reading the pressure.

Crankcase heaters compressor oil

(standard for IP and BP units, ccessory IR and BR units ) consist of electrical heaters heating oil compressors.

Accessories

Supplied accessories

Factory mounted accessories

NOTES

* This accessory can be selected only for units with modulating fan control.

TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)

Frame

1 2

Model

19.1 22.1 26.1 30.1 35.1 40.1

U.M.

Power supply

400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 V-ph-Hz

Technical data

Refrigerant

Type

R410A R410A R410A R410A R410A R410A -

Compressor

Type

scroll scroll scroll scroll scroll scroll -

Quantity

1 1 1 1 1 1 n°

Power steps

0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 %

Plant side heat exchanger

Type

stainless steel

brazed plates

stainless steel brazed plates

stainless steel

brazed plates

stainless steel

brazed plates

stainless steel

brazed plates

stainless steel

brazed plates

Quantity

1 1 1 1 1 1 n°

Source side heat exchanger

Type

finned

coil

finned

coil

finned

coil

finned

coil

finned

coil

finned

coil

Quantity

1 1 1 1 1 1 n°

Fans

Type

axial axial axial axial axial axial -

Quantity

1 1 1 1 1 1 n°

Diameter

630 630 630 800 800 800 mm

Maximum rotational speed

900 900 900 900 900 900 rpm

Total installed power

0,6 0,6 0,6 1,8 1,8 1,8 kW

Plant side hydraulic circuit

Expansion vessel volume VP - VA

10 10 10 10 10 10 l

Tank volume - VA

85 85 85 85 85 85 l

Safety valve set * - VP - VA

3 3 3 3 3 3 bar

Standard pump (option)

Type

centrifugal

pump

centrifugal

pump

centrifugal

pump

centrifugal

pump

centrifugal

pump

centrifugal

pump

Installed power

0,6 0,6 0,6 0,8 0,8 0,8 kW

High head pump (option)

Type

centrifugal

pump

centrifugal

pump

centrifugal

pump

centrifugal

pump

centrifugal

pump

centrifugal

pump

Installed power

0,9 0,9 0,9 1,6 1,6 1,6 kW

Modulating pump (option)

Type

centrifugal pump

with inverter

centrifugal pump

with inverter

centrifugal pump

with inverter

centrifugal pump

with inverter

centrifugal pump

with inverter

centrifugal pump

with inverter

Installed power

0,6 0,6 0,6 0,8 0,8 0,8 kW

Integrative electrical heaters in the tank (option)

Installed power

6,6 6,6 6,6 6,6 6,6 6,6 kW

Power steps

2 2 2 2 2 2 n°

NOTES

*: Standard version for VA, to be installed by the customer for VP version.

TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)

Frame

1 2

Model

19.1 22.1 26.1 30.1 35.1 40.1

U.M.

NET NOMINAL performances - Base setting up (AB) - Standard plants - EUROVENT certified data

Frame

1 2

Model

19.1 22.1 26.1 30.1 35.1 40.1

U.M.

NET NOMINAL performances - Base setting up (AB) - Radiant plants

Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )

Cooling capacity 20,1 22,3 26,1 31,5 36,6 41,3

Power input 6,51 7,15 8,29 10,3 11,9 13,5

EER 3,09 3,12 3,15 3,06 3,08 3,06

W/W

ESEER

3,44 3,48 3,51 3,44 3,45 3,45 W/W

Water flow rate plant side 3466 3844 4496 5439 6315 7138

l/h

Pressure drops plant side 26 32 26 37 32 41

kPa

Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )

Cooling capacity 19,7 21,9 25,6 30,9 35,9 40,5

Power input 6,45 7,08 8,20 10,2 11,8 13,4

EER 3,05 3,09 3,12 3,03 3,04 3,02

W/W

ESEER 3,40 3,46 3,47 3,42 3,40 3,40

W/W

Water flow rate plant side 3398 3775 4410 5337 6194 7001

l/h

Pressure drops plant side 25 31 25 36 31 39

kPa

Heating A7W45 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C )

Heating capacity 21,2 23,5 27,4 33,3 38,6 43,8

Power input 6,21 6,82 7,89 9,79 11,3 12,9

COP 3,41 3,45 3,47 3,40 3,42 3,40

W/W

Water flow rate plant side 3603 3995 4661 5651 6556 7427

l/h

Pressure drops plant side 28 34 28 40 34 43

kPa

Frame

1 2

Model

19.1 22.1 26.1 30.1 35.1 40.1

U.M.

NET NOMINAL performances - Base setting up (AB) - Standard plants

Data declared according to EN 14511. The values are referred to units without options and accessories.

Heating A2W45 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 40°C out 45°C )

Heating capacity 17,5 19,5 22,7 27,5 31,9 36,2

Power input 6,12 6,70 7,78 9,62 11,1 12,7

COP 2,86 2,91 2,92 2,86 2,87 2,85

W/W

Water flow rate plant side 2971 3312 3859 4678 5430 6147

l/h

Pressure drops plant side 19 24 19 28 24 30

kPa

Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )

Cooling capacity 26,1 28,9 33,9 40,8 47,4 53,5

Power input 6,67 7,35 8,49 10,60 12,2 13,9

EER 3,91 3,93 3,99 3,85 3,89 3,85

Water flow rate plant side 4517 4998 5856 7076 8209 9291

l/h

Pressure drops plant side 43 52 43 62 53 67

kPa

Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )

Cooling capacity 25,5 28,4 33,2 40,0 46,5 52,5

Power input 6,60 7,27 8,40 10,5 12,1 13,7

EER 3,86 3,91 3,95 3,81 3,84 3,83

Water flow rate plant side 4414 4912 5736 6938 8055 9102

l/h

Pressure drops plant side 41 50 41 59 51 64

kPa

Heating A7W35 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 30°C out 35°C )

Heating capacity 21,6 24,0 28,0 34,0 39,4 44,7

Power input 5,24 5,76 6,66 8,28 9,57 10,9

COP 4,12 4,17 4,20 4,11 4,12 4,10

Water flow rate plant side 3686 4097 4783 5794 6720 7611

l/h

Pressure drops plant side 29 36 29 42 36 46

kPa

Heating A2W35 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 30°C out 35°C )

Heating capacity 17,9 19,9 23,3 28,2 32,6 37,1

Power input 5,15 5,64 6,54 8,10 9,39 10,7

COP 3,48 3,53 3,56 3,48 3,47 3,47

Water flow rate plant side 3051 3394 3977 4817 5571 6326

l/h

Pressure drops plant side 20 25 21 30 25 32

kPa

Data declared according to EN 14511. The values are referred to units without options and accessories.

TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)

Frame

1 2

Model

19.1 22.1 26.1 30.1 35.1 40.1

U.M.

NET NOMINAL performances - Low noise setting up (AS) - Standard plants - EUROVENT certified data

Frame

1 2

Model

19.1 22.1 26.1 30.1 35.1 40.1

U.M.

NET NOMINAL performances - Low noise setting up (AS) - Radiant plants

Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )

Cooling capacity 19,3 21,4 25,1 30,3 35,2 39,8

Power input 7,02 7,71 8,94 11,1 12,8 14,4

EER 2,75 2,78 2,81 2,73 2,75 2,76

W/W

ESEER 3,06 3,10 3,12 3,07 3,08 3,09

W/W

Water flow rate plant side 3329 3689 4324 5234 6074 6864

l/h

Pressure drops plant side 24 29 24 35 30 38

kPa

Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )

Cooling capacity 18,9 21,0 24,6 29,7 34,5 39,0

Power input 6,95 7,63 8,84 11,0 12,7 14,3

EER 2,72 2,75 2,78 2,70 2,72 2,73

W/W

ESEER 3,03 3,07 3,09 3,04 3,05 3,05

W/W

Water flow rate plant side 3260 3621 4238 5131 5954 6726

l/h

Pressure drops plant side 23 28 23 34 29 36

kPa

Heating A7W45 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C )

Heating capacity 20,1 22,3 26,1 31,7 36,7 41,7

Power input 5,95 6,54 7,56 9,38 10,9 12,4

COP 3,38 3,41 3,45 3,38 3,37 3,36

W/W

Water flow rate plant side 3415 3790 4439 5378 6232 7069

l/h

Pressure drops plant side 25 31 25 36 31 40

kPa

Frame

1 2

Model

19.1 22.1 26.1 30.1 35.1 40.1

U.M.

NET NOMINAL performances - Low noise setting up (AS) - Standard plants

Data declared according to EN 14511. The values are referred to units without options and accessories.

Heating A2W45 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 40°C out 45°C )

Heating capacity 16,5 18,5 21,6 26,1 30,2 34,3

Power input 5,87 6,43 7,46 9,22 10,7 12,1

COP 2,81 2,88 2,90 2,83 2,82 2,83

W/W

Water flow rate plant side 2817 3142 3671 4439 5139 5839

l/h

Pressure drops plant side 17 22 18 25 22 28

kPa

Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )

Cooling capacity 25,0 27,8 32,6 39,3 45,6 51,5

Power input 7,18 7,91 9,14 11,4 13,1 14,8

EER 3,48 3,51 3,57 3,45 3,48 3,48

Water flow rate plant side 4328 4809 5633 6818 7900 8930

l/h

Pressure drops plant side 40 48 40 57 49 62

kPa

Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )

Cooling capacity 24,5 27,2 31,9 38,6 44,8 50,5

Power input 7,10 7,81 9,04 11,2 12,9 14,7

EER 3,45 3,48 3,53 3,45 3,47 3,44

Water flow rate plant side 4242 4706 5513 6681 7745 8759

l/h

Pressure drops plant side 38 47 38 55 47 60

kPa

Heating A7W35 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 30°C out 35°C )

Heating capacity 20,5 22,8 26,6 32,3 37,4 42,5

Power input 5,02 5,52 6,38 7,92 9,17 10,5

COP 4,08 4,13 4,17 4,08 4,08 4,05

Water flow rate plant side 3497 3891 4543 5503 6377 7234

l/h

Pressure drops plant side 26 32 27 38 33 42

kPa

Heating A2W35 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 30°C out 35°C )

Heating capacity 16,9 18,9 22,1 26,7 31,0 35,2

Power input 4,93 5,42 6,28 7,76 9,00 10,3

COP 3,43 3,49 3,52 3,44 3,44 3,42

Water flow rate plant side 2897 3223 3771 4560 5297 6000

l/h

Pressure drops plant side 19 23 19 27 23 29

kPa

Data declared according to EN 14511. The values are referred to units without options and accessories.

TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

567891011121314151617181

Potenza frigo

0.8

0.9

1.0

1.1

1.2

1.3

1.4

5 67891011121314151617181

Pot ass TOTALE in raffreddamen

COOLING performances

The graphs allow to get the corrective factors to be applied to the nominal performances in order to obtain the real performances in the selected operating conditions. For the "Operation limits" of the unit refer to the section limits.

The reference nominal condition is: A35W7 (source : air in 35°C d.b. / plant : water in 12°C out 7°C)

Outlet air temperature (°C D.B.)

A = 20°C B = 25°C C = 30°C D = 35°C E = 40°C

F = 45°C

G = 50°C

Outlet air temperature (°C D.B.)

A = 20°C B = 25°C C = 30°C D = 35°C E = 40°C

F = 45°C

G = 50°C

Cooling capacity

Total power input

Outlet water temperature [°C]

A35W7

TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)

0.7

0.8

0.9

1.0

1.1

1.2

1.3

30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

Potenza termica

-6

-2

30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

Pot Ass TOTALE in riscaldame

-6

-2

The reference nominal condition is: A7W45 (source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C)

Heating capacity

Total power input

Outlet water temperature [°C]

HEATING performances

The standard performances refer to a 5°C temperature difference between the water entering and leaving the heat exchanger and to operation of the unit with all fans at nominal or maximum speed. A 0.44 x 10-4 m2 K/W fouling factor has also been considered with the unit installed at zero meters above sea level (Pb = 1013mbar). NOTE For air temperatures of less than 7°C, the heating capacity is declared without considering the effect of the defrosting, strictly correlated with the humidity in the outdoor air.

A7W45

Outlet air temperature (°C D.B. / W.B.)

A = -5,5 / -6°C B = -1,3 / -2°C C = 2,8 / 2°C D = 7 / 6°C E = 10,1 / 9°C F = 13,2 / 12°C G = 16,4 /15°C

Outlet air temperature (°C D.B. / W.B.)

A = -5,5 / -6°C B = -1,3 / -2°C C = 2,8 / 2°C

D = 7 / 6°C E = 10,1 / 9°C F = 13,2 / 12°C

G = 16,4 /15°C

Correction factors to apply to the basic version data.

ETHYLENE GLYCOL

PROPYLENE GLYCOL

Percentage Of glycol in mass / volume 20 / 18,1

Freezing point [°C] -8

Produced water temperature 4 2 0 -2 -4 -6 -8 -10 -12 CCPF - Cooling capacity 0,912 0,855 0,798 0,738 0,683 - - - - CCPA - Power input 0,967 0,957 0,947 0,927 0,897 - - - - CCQA - Water flow rate 1,071 1,072 1,073 1,075 1,076 - - - - CCDP - Pressure drop 1,090 1,095 1,100 1,110 1,120 - - - -

Percentage Of glycol in mass / volume 30 / 27,7

Freezing point [°C] -14

Produced water temperature 4 2 0 -2 -4 -6 -8 -10 -12 CCPF - Cooling capacity 0,899 0,842 0,785 0,725 0,670 0,613 0,562 - - CCPA - Power input 0,960 0,950 0,940 0,920 0,890 0,870 0,840 - - CCQA - Water flow rate 1,106 1,107 1,108 1,109 1,110 1 ,111 1,112 - - CCDP - Pressure drop 1,140 1,145 1,150 1,155 1,160 1,175 1,190 - -

Percentage Of glycol in mass / volume 40 / 37,5

Freezing point [°C] -22

Produced water temperature 4 2 0 -2 -4 -6 -8 -10 -12 CCPF - Cooling capacity 0,884 0,827 0,770 0,710 0,655 0,598 0,547 0,490 0,437 CCPA - Power input 0,880 0,870 0,860 0,840 0,810 0,790 0,760 0,724 0,686 CCQA - Water flow rate 1,150 1,151 1,153 1,154 1,155 1,157 1,158 1,159 1,161 CCDP - Pressure drop 1,190 1,195 1,200 1,210 1,220 1,235 1,250 1,269 1,290

Percentage Of glycol in mass / volume 20 / 19,4

Freezing point [°C] -7

Produced water temperature 4 2 0 -2 -4 -6 -8 -10 -12 CCPF - Cooling capacity 0,874 0,807 0,740 0,690 0,641 - - - - CCPA - Power input 0,945 0,935 0,925 0,900 0,875 - - - - CCQA - Water flow rate 1,037 1,038 1,039 1,039 1,040 - - - - CCDP - Pressure drop 1,110 1,115 1,120 1,130 1,140 - - - -

Percentage Of glycol in mass / volume 30 / 29,4

Freezing point [°C] -13

Produced water temperature 4 2 0 -2 -4 -6 -8 -10 -12 CCPF - Cooling capacity 0,869 0,799 0,729 0,680 0,630 0,583 0,536 - - CCPA - Power input 0,935 0,923 0,910 0,888 0,865 0,838 0,810 - - CCQA - Water flow rate 1,072 1,071 1,070 1,069 1,069 1,068 1,067 - - CCDP - Pressure drop 1,160 1,175 1,190 1,200 1,210 1,255 1,300 - -

Percentage Of glycol in mass / volume 40 / 39,6

Freezing point [°C] -21

Produced water temperature 4 2 0 -2 -4 -6 -8 -10 -12 CCPF - Cooling capacity 0,848 0,784 0,719 0,670 0,620 0,570 0,520 0,478 0,438 CCPA - Power input 0,865 0,855 0,845 0,820 0,795 0,773 0,750 0,714 0,680 CCQA - Water flow rate 1,116 1,114 1,112 1,110 1,108 1,107 1,105 1,103 1,101 CCDP - Pressure drop 1,230 1,275 1,320 1,375 1,430 1,500 1,570 1,642 1,724

Based on leaving water temperature of the evaporator and condensing temperature = 7°C extract Cooling Capacity (kWf) and Compressors Power Input (kWa). Based on type and percentage of glycol extract CCPF, CCPA, CCQA, CCDP. Then calculate. Pf_brine = kWf x CCPF

Pass_CP_brine = kWa x CCPA

Then calculate brine flow rate:

Q_brine_evap [l/s]=CCQA x (Pf_brine [kW]*0.86/DT_brine)/3.6

where DT_brine is the difference between inlet-outlet evaporator water temperature: DT_brine=Twin_evap_brine-Twout_evap_brine

With this brine flow rate enter in abscissa on the water pressure drop of the evaporator then you have Dp_app. Finally you can calculate the actual pressure drop of the brine on evaporator side:

Dp_evap_brine =CCDP x Dp_app

Corrective factors

BR - BP UNIT

Parameter

to set

Default

value

How to calculate

the value to set

Example

with TWE = 0°C

Example

with TWE = -5°C

TR06 7 °C TWE +5°C +5 °C 0 °C TR04 12 °C TWE +5°C +5 °C 0 °C HI06 5 °C TWE -2°C -2 °C -7 °C al12 4,5 °C TWE -3°C -3 °C -8 °C

TWE= Evaporator outlet desired water temperature

BR and BP units must be used with a mixture of water and antifreeze fluid (eg glycol) in a percentage enought to prevent freezing of the mixture under all possible conditions, otherwise it will VOID THE WARRANTY. Please contact our customer service to set the following parameters: →

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