Ferroli RMA series Setup guide

RMA
AIR-WATER CHILLERS AND HEAT PUMPS
FOR OUTDOOR INSTALLATION
INSTALLATION AND OPERATION MANUAL
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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

3
TABLE OF CONTENTS
GENERAL FEATURES 4
General instructions ..........................................................................4
Declaration of conformity ......................................................................4
Unit dataplate ...............................................................................4
Unit description..............................................................................5
Unit identification code ........................................................................5
Description of components.....................................................................6
Control system ..............................................................................7
Versions ...................................................................................7
Options....................................................................................8
Accessories ................................................................................9
TECHNICAL DATA AND PERFORMANCES 10
Technical data...............................................................................10
NOMINAL performances - Base setting up (VB) - Standard plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
NOMINAL performances - Base setting up (VB) - Radiant plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
NOMINAL performances - Low noise setting up (AS) - Standard plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
NOMINAL performances - Low noise setting up (AS) - Radiant plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
COOLING performances ......................................................................15
HEATING performances.......................................................................16
Plant side hydraulic performances ...............................................................17
Operating limits..............................................................................19
Electrical data...............................................................................20
Noise levels ................................................................................21
Weights....................................................................................22
Overall dimensions...........................................................................23
Minimum operating area.......................................................................23
CONNECTIONS24
Hydraulic connections.........................................................................24
Electrical connections.........................................................................25
RECEIVING AND POSITIONING 26
Receiving ..................................................................................26
Positioning .................................................................................26
START UP 27
Start up....................................................................................27
CONTROL SYSTEM 28
Control system ..............................................................................28
Menu structure ..............................................................................30
Inputs and outputs ...........................................................................31
Controller technical data.......................................................................31
Alarms.....................................................................................32
Alarms table ................................................................................33
Functions available for the user .................................................................34
Serial communication.........................................................................35
Probes characteristics ........................................................................36
MAINTENANCE37
Maintenance................................................................................37
SAFETY AND POLLUTION38
General considerations........................................................................38
Refrigerant safety card........................................................................38
DECLARATION OF CONFORMITY 41

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GENERAL FEATURES
General instructions
Declaration of conformity
Unit dataplate
The figure shows the fields reported on the unit dataplate :
This manual and the wiring diagram supplied with the unit must be kept in a dry place for possible future consultation.
The manual provides information on installation and correct use and maintenance of the unit. Before carrying out installation,
please carefully read all the information contained in this manual, which describes the procedures necessary for correct
installation and use of the unit
Follow carefully the instructions contained in this manual and respect the safety regulations in force. The unit must be installed
in conformity with the laws in force in the country of use. Unauthorized tampering with the electrical and mechanical equipment
INVALIDATES THE WARRANTY.
Check the electrical specifications given on the dataplate before making the electrical connections. Read the instructions given in the
specific section on electrical connections.
Deactivate the equipment in case of fault or poor operation.
If the unit requires fixing, contact only specialized service centers recognized by the manufacturer and use original spare parts.
The unit must be installed outdoor and connected to a hydronic cooling and/or heating system. Any use different from that permitted
or outside the operating limits indicated in this manual is prohibited (unless previously agreed with the firm).
The manufacturer declines any responsability for damage or injury due to non-compliance with the information given in this manual.
The firm declares that the present unit complies with the requirements of the following directives :
• Machinery directive (MD) 2006/42/EC
• Pressure equipment directive (PED) 97/23/EC
• Electromagnetic compatibility directive (EMC) 2004/108/EC
• Low voltage directive (LVD) 2006/95/EC
Codice
Code B1 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 - Unit weight
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

5
IP 261 VB AB 0M5
GENERAL FEATURES
Unit description
This series of air-water chillers and heat pumps satises the co-
oling 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 differen-
tial pressure switch on the plate heat exchanger.
The plate heat exchanger and all the hydraulic pipes are ther-
mally 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, al-
ready 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 in-
stallation operating as chiller
IP - Unit suitable for hydronic plant in-
stallation operating as reversible heat
pump
BR - Unit suitable for hydronic plant in-
stallation with brine solutions operating
as chiller
BP - Unit suitable for hydronic plant in-
stallation 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 instal-
led 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
RMA

6
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 models).
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.
DESCRIZIONE 2
DESCRIZIONE 1
3
7
2
6
4
5
1
8
DESCRIZIONE 2
DESCRIZIONE 1
3
7
2
6
4
5
1
8

7
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
121 2
mode
disp
vb VP
VA
vb VP
VA
vb VP
VA

8
GENERAL FEATURES
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 avai-
lable static head, suitable for high pressure drop plants.
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.
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 avai-
lable 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.
Integrative
electrical
heaters
Standard in the tank
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 sup-
ply 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 simpli-
fying the maintenance operations.
Chiller (IR) without options (VB) Heat pump (IP) without options (VB)

9
GENERAL FEATURES
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..
Tank antifreeze
electrical heater
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.
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).
Accessories
Option "Storing and pumping module"
Standard, high head or modulating pump
(VP version)
Option "Integrative electrical heaters"
Tank and standard, high head or modulating pump
(VA version)
Standard in the tank
(only for VA version)

10
TECHNICAL DATA AND PERFORMANCES
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 %
Oil charge 2,51 3,25 3,25 3,25 3,25 3,25 kg
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°
Water volume 1,90 1,90 2,56 2,56 3,33 3,33 l
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°
Frontal surface 1,45 1,45 1,45 1,75 1,75 1,75 m2
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 10 10 10 10 10 10 l
Tank volume - VA 85 85 85 85 85 85 l
Safety valve set - VA 6 6 6 6 6 6 bar
Standard pump (option)
Type centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump -
Installed power 0,7 0,7 0,7 0,7 1,0 1,0 kW
High head pump (option)
Type centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump -
Installed power 1,2 1,2 1,2 1,2 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 0,7 0,7 0,7 0,7 1,0 1,0 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°

11
TECHNICAL DATA AND PERFORMANCES
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
NOMINAL performances - Base setting up (VB) - Standard plants
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
NOMINAL performances - Base setting up (VB) - Standard plants - EUROVENT certified data
Data declared according to EN 14511. The values are referred to units without options and accessories.
IR
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 19,9 22,1 25,8 30,8 35,6 40,2 kW
Power input 6,82 7,50 8,76 10,8 12,3 13,9 kW
EER 2,92 2,95 2,95 2,85 2,89 2,89 -
Water flow rate plant side 3432 3809 4444 5319 6143 6932 l/h
Pressure drops plant side 26 31 26 36 31 38 kPa
IP
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 19,5 21,7 25,3 30,2 34,9 39,4 kW
Power input 6,75 7,42 8,66 10,7 12,2 13,8 kW
EER 2,89 2,92 2,92 2,82 2,86 2,86 -
Water flow rate plant side 3363 3741 4358 5216 6023 6795 l/h
Pressure drops plant side 25 30 25 35 29 37 kPa
Heating A7W45 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C )
Heating capacity 21,0 23,3 27,1 32,5 37,6 42,4 kW
Power input 6,49 7,14 8,33 10,3 11,7 13,4 kW
COP 3,24 3,26 3,25 3,16 3,21 3,16 -
Water flow rate plant side 3568 3961 4610 5515 6386 7188 l/h
Pressure drops plant side 27 33 27 38 33 41 kPa
Heating A2W45 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 40°C out 45°C )
Heating capacity 17,4 19,3 22,5 26,8 31,0 35,0 kW
Power input 6,40 7,03 8,21 10,1 11,5 13,2 kW
COP 2,72 2,75 2,74 2,65 2,70 2,65 -
Water flow rate plant side 2954 3278 3825 4559 5276 5942 l/h
Pressure drops plant side 19 23 19 27 23 28 kPa
IR
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 20,0 22,2 25,9 31,0 35,8 40,4 kW
EER 2,97 3,00 2,99 2,92 2,96 2,95 -
Pressure drops plant side 26 31 25 36 30 38 kPa
ESEER 3,36 3,39 3,38 3,30 3,34 3,33 -
IP
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 19,6 21,8 25,4 30,4 35,1 39,6 kW
EER 2,94 2,98 2,97 2,90 2,93 2,91 -
Pressure drops plant side 25 30 25 34 29 37 kPa
ESEER 3,32 3,37 3,36 3,28 3,31 3,29 -
Heating A7W45 (air 7 °C bs - 6 °C bu / water 40 - 45 °C )
Heating capacity 20,9 23,2 27,0 32,3 37,4 42,1 kW
COP 3,27 3,30 3,29 3,20 3,25 3,21 -
Pressure drops plant side 28 34 27 39 33 41 kPa

12
TECHNICAL DATA AND PERFORMANCES
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
NOMINAL performances - Base setting up (VB) - Radiant plants
IR
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity 24,6 27,3 31,9 38,1 44,1 49,6 kW
Power input 7,09 7,81 9,11 11,2 12,8 14,6 kW
EER 3,47 3,50 3,50 3,40 3,45 3,40 -
Water flow rate plant side 4259 4723 5513 6595 7625 8604 l/h
Pressure drops plant side 39 47 38 54 46 58 kPa
IP
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity 24,2 26,8 31,3 37,4 43,2 48,7 kW
Power input 7,01 7,73 9,01 11,1 12,7 14,4 kW
EER 3,45 3,47 3,47 3,37 3,40 3,38 -
Water flow rate plant side 4173 4637 5410 6475 7471 8432 l/h
Pressure drops plant side 37 45 37 52 44 56 kPa
Heating A7W35 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 30°C out 35°C )
Heating capacity 21,4 23,8 27,7 33,2 38,4 43,3 kW
Power input 5,48 6,03 7,03 8,71 9,91 11,3 kW
COP 3,91 3,95 3,94 3,81 3,87 3,83 -
Water flow rate plant side 3651 4063 4731 5657 6549 7371 l/h
Pressure drops plant side 29 35 29 40 34 43 kPa
Heating A2W35 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 30°C out 35°C )
Heating capacity 17,8 19,8 23,0 27,5 31,8 35,9 kW
Power input 5,39 5,92 6,90 8,54 9,72 11,1 kW
COP 3,30 3,34 3,33 3,22 3,27 3,23 -
Water flow rate plant side 3034 3377 3926 4697 5434 6120 l/h
Pressure drops plant side 20 25 20 28 24 30 kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.

13
TECHNICAL DATA AND PERFORMANCES
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
NOMINAL performances - Low noise setting up (AS) - Standard plants
NOMINAL performances - Low noise setting up (AS) - Standard plants - EUROVENT certified data
IR
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 19,1 21,2 24,8 29,6 34,2 38,6 kW
Power input 7,34 8,09 9,42 11,6 13,3 15,0 kW
EER 2,60 2,62 2,63 2,55 2,57 2,57 -
Water flow rate plant side 3295 3655 4273 5113 5903 6658 l/h
Pressure drops plant side 24 29 24 33 28 36 kPa
IP
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 18,7 20,8 24,3 29,1 33,6 37,8 kW
Power input 7,27 8,00 9,33 11,4 13,1 14,9 kW
EER 2,57 2,60 2,60 2,55 2,56 2,54 -
Water flow rate plant side 3226 3586 4187 5010 5783 6520 l/h
Pressure drops plant side 23 28 23 32 27 34 kPa
Heating A7W45 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C )
Heating capacity 19,9 22,2 25,8 31,0 35,8 40,3 kW
Power input 6,22 6,85 7,98 9,88 11,3 12,8 kW
COP 3,20 3,24 3,23 3,14 3,17 3,15 -
Water flow rate plant side 3381 3773 4388 5259 6078 6847 l/h
Pressure drops plant side 25 30 25 35 30 37 kPa
Heating A2W45 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 40°C out 45°C )
Heating capacity 16,4 18,3 21,3 25,5 29,5 33,2 kW
Power input 6,13 6,74 7,87 9,73 11,1 12,6 kW
COP 2,68 2,72 2,71 2,62 2,66 2,63 -
Water flow rate plant side 2800 3107 3620 4337 5020 5651 l/h
Pressure drops plant side 17 21 17 24 21 26 kPa
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
IR
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 19,2 21,3 24,9 29,8 34,4 38,8 kW
EER 2,64 2,67 2,67 2,61 2,63 2,62 -
Pressure drops plant side 24 29 24 33 28 35 kPa
ESEER 2,98 3,02 3,02 2,95 2,97 2,96 -
IP
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 18,8 20,9 24,4 29,2 33,7 38,0 kW
EER 2,61 2,64 2,64 2,58 2,59 2,59 -
Pressure drops plant side 23 28 23 32 27 34 kPa
ESEER 2,95 2,98 2,98 2,92 2,93 2,93 -
Heating A7W45 (air 7 °C bs - 6 °C bu / water 40 - 45 °C )
Heating capacity 19,8 22,1 25,7 30,8 35,6 40,1 kW
COP 3,22 3,28 3,26 3,17 3,21 3,18 -
Pressure drops plant side 25 31 25 35 30 38 kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.

14
TECHNICAL DATA AND PERFORMANCES
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
NOMINAL performances - Low noise setting up (AS) - Radiant plants
IR
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity 23,7 26,2 30,7 36,7 42,4 47,7 kW
Power input 7,62 8,41 9,79 12,0 13,8 15,6 kW
EER 3,11 3,12 3,14 3,06 3,07 3,06 -
Water flow rate plant side 4087 4534 5307 6354 7333 8261 l/h
Pressure drops plant side 36 43 36 50 43 54 kPa
IP
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity 23,2 25,7 30,1 35,9 41,5 46,7 kW
Power input 7,55 8,32 9,69 11,9 13,7 15,5 kW
EER 3,07 3,09 3,11 3,02 3,03 3,01 -
Water flow rate plant side 4002 4448 5204 6217 7179 8089 l/h
Pressure drops plant side 34 42 34 48 41 51 kPa
Heating A7W35 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 30°C out 35°C )
Heating capacity 20,3 22,6 26,3 31,6 36,5 41,2 kW
Power input 5,24 5,77 6,73 8,34 9,49 10,9 kW
COP 3,87 3,92 3,91 3,79 3,85 3,78 -
Water flow rate plant side 3463 3857 4491 5383 6223 7011 l/h
Pressure drops plant side 26 32 26 37 31 39 kPa
Heating A2W35 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 30°C out 35°C )
Heating capacity 16,8 18,8 21,8 26,2 30,2 34,0 kW
Power input 5,16 5,67 6,61 8,19 9,32 10,6 kW
COP 3,26 3,32 3,30 3,20 3,24 3,21 -
Water flow rate plant side 2880 3206 3720 4474 5160 5811 l/h
Pressure drops plant side 18 22 18 26 22 27 kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.

15
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
15 20 25 30 35 40 45 50
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
15 20 25 30 35 40 45 50
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
15 20 25 30 35 40 45 50
TECHNICAL DATA AND PERFORMANCES
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.
The reference nominal condition is :
A35W7
source : air in 35°C d.b.
plant : water in 12°C out 7°C
Outlet temperature
plant side :
A = 24°C
B = 18°C
C = 12°C
D = 7°C
Cooling capacity
Inlet air temperature d.b. [°C]
Inlet air temperature d.b. [°C] Inlet air temperature d.b. [°C]
Power input EER
ABCD
A
B
C
D
A
B
C
D

16
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-15 -10 -5 0 5 10 15 20
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
-15 -10 -5 0 5 10 15 20
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
-15 -10 -5 0 5 10 15 20
TECHNICAL DATA AND PERFORMANCES
HEATING 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.
The reference nominal condition is :
A7W35
source : air in 7°C d.b. 6°C w.b.
plant : water in 30°C out 35°C
Outlet temperature
plant side :
A = 55°C
B = 45°C
C = 35°C
D = 25°C
Heating capacity
Inlet air temperature w.b. [°C]
Inlet air temperature w.b. [°C] Inlet air temperature w.b. [°C]
Power input COP
D
C
B
A
A
B
C
D
ABCD

17
0
10
20
30
40
50
60
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
TECHNICAL DATA AND PERFORMANCES
Plant side hydraulic performances
Pressure drops - unit without options
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Flow rate [ l/h ]
Pressure drops [ kPa ]
0
40
80
120
160
200
240
280
320
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
Available static head - unit with option “Storing and pumping module” :
“Standard pump” or "Tank and standard pump"
Flow rate [ l/h ]
Available static head [ kPa ]
19.1
22.1
26.1
30.1
35.1
40.1
19.1
22.1
26.1
30.1
35.1
40.1

18
TECHNICAL DATA AND PERFORMANCES
Available static head - unit with option “Storing and pumping module” :
“High head pump” or "Tank and high head pump"
Flow rate [ l/h ]
0
40
80
120
160
200
240
280
320
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
Available static head - unit with option “Storing and pumping module” :
“Modulating pump” or "Tank and modulating pump"
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Flow rate [ l/h ]
Available static head [ kPa ]
19.1
22.1
26.1
30.1
35.1
40.1
0
40
80
120
160
200
240
280
320
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
26.1
30.1
35.1
40.1
19.1
22.1
Available static head [ kPa ]

19
TECHNICAL DATA AND PERFORMANCES
Operating limits
-15
-10
-5
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50
COOLING
Inlet air temperature d.b. [°C]
Outlet temperature - plant side [°C]
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50
HEATING
Inlet air temperature d.b. [°C]
Outlet temperature - plant side [°C]
The graphs reported below show the operating area inside which the correct working of the unit is guaranteed.
Temperature difference between unit inlet and outlet Plant side
DT max Maximum value 8 °C
DT min Minimum value 3 °C
BRINE units (BR and BP)
Modulating fans
control
(condensation
control)

20
TECHNICAL DATA AND PERFORMANCES
Electrical data
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
F.L.A. Maximum total current input 18,8 20,8 22,9 25,9 29,9 34,0 A
F.L.I. Maximum total power input 10,8 12,1 13,4 15,8 18,4 21,0 kW
M.I.C.
Maximum total start current 98 114 121 129 144 178 A
Maximum total start current
with soft starter (option) 55 64 68 73 82 102 A
Unit
Power supply 230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 V-ph-Hz
F.L.A. Maximum total current input 3,6 3,6 3,6 3,6 5,1 5,1 A
F.L.I. Maximum total power input 0,7 0,7 0,7 0,7 1,0 1,0 kW
Standard pump (option)
Power supply 230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 V-ph-Hz
F.L.A. Maximum total current input 6,1 6,1 6,1 6,1 8,2 8,2 A
F.L.I. Maximum total power input 1,2 1,2 1,2 1,2 1,6 1,6 kW
High head pump (option)
Power supply 400-3N-50 400-3N-50 400-3N-50 400-3N-50 400-3N-50 400-3N-50 V-ph-Hz
F.L.A. Maximum total current input 3,6 3,6 3,6 3,6 5,1 5,1 A
F.L.I. Maximum total power input 0,7 0,7 0,7 0,7 1,0 1,0 kW
Modulating pump (option)
Power supply 400-3N-50 400-3N-50 400-3N-50 400-3N-50 400-3N-50 400-3N-50 V-ph-Hz
F.L.A. Maximum total current input 9,5 9,5 9,5 9,5 9,5 9,5 A
F.L.I. Maximum total power input 6,6 6,6 6,6 6,6 6,6 6,6 kW
Integrative electrical heaters standard in the tank (option)