Ferroli RXA 6.1 User manual

1
RXA
AIR-WATER
CHILLERS AND HEAT PUMPS
FOR OUTDOOR INSTALLATION
INSTALLATION AND OPERATION MANUAL
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FERROLI adheres to
EUROVENT
certication programme.
The products appear in the
directory of certied products at
www.eurovent-certication.com

2
The manufacturer declines all the responsabilities regarding inaccuracies contained in this manual, if due to printing or typing
mistakes. 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 stu-
dies 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

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TABLE OF CONTENTS
GENERALFEATURES..........................................................................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
TECHNICALDATAANDPERFORMANCES .........................................................10
Technical data...............................................................................10
NOMINAL performances - Standard plants ........................................................11
NOMINAL performances - Standard plants - EUROVENT certified data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
NOMINAL performances - Radiant plants .........................................................12
COOLING performances ......................................................................13
HEATING performances.......................................................................14
Plant side hydraulic performances ...............................................................15
Operating limits..............................................................................18
Electrical data...............................................................................19
Noise levels ................................................................................20
Weights....................................................................................21
Overall dimensions...........................................................................22
Minimum operating area.......................................................................22
CONNECTIONS................................................................................23
Hydraulic connections.........................................................................23
Electrical connections.........................................................................24
RECEIVINGANDPOSITIONING ..................................................................25
Receiving ..................................................................................25
Positioning .................................................................................25
STARTUP....................................................................................26
Messa in funzione............................................................................26
CONTROLSYSTEM............................................................................27
Controlsystem.............................................................................27
Menu structure ..............................................................................29
Inputs and outputs ...........................................................................30
Controller technical data.......................................................................30
Alarms.....................................................................................31
Alarms table ................................................................................32
Functions available for the user .................................................................33
Serial communication.........................................................................34
Probes characteristics ........................................................................35
MAINTENANCE................................................................................36
Maintenance................................................................................36
SAFETYANDPOLLUTION.......................................................................37
General considerations........................................................................37
Refrigerant safety card........................................................................37

4
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
GENERAL FEATURES
Unit identification code
The codes that identify the units and the meaning of the letters used are described below.
RXA IP 14.1 VB AB 0M5
Unit type
IR - Unit suitable for hydronic
plant installation operating as
chiller
IP - Unit suitable for hydronic
plant installation operating as
reversible heat pump
Power supply
Operating range
Refrigerant type
Acoustic setting up
Unit version
N° compressors
Unit model
VB - Base version
VP - Pump version
VA - Tank version
1 - 230 V - 1 - 50 Hz
5 - 400 V - 3N - 50 Hz
M - Medium temperature.
The unit is suitable to be instal-
led in temperate climates.
0 - R410A
AB - Base setting up
Unit description
This series of air-water chillers and heat pumps satisfies the
cooling and heating requirements of residential plants of small
and medium size.
All the units are suitable for outdoor installation and can be
applied to fan coil plants, radiant floor plants and high efficiency
radiators plants.
The refrigerant circuit, contained in a compartment protected
from the air flow to simplify the maintenance operations,
is equipped with rotary or scroll compressor (according to
the model) mounted on damper supports, brazed plate heat
exchanger, thermostatic expansion valve, reverse cycle valve,
axial fans with safety protection grilles, finned coil made
of copper pipes and aluminium louvered fins. The circuit 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 are 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.
All three-phase power supply 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.

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 rotary or scroll (according to the model)
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 is
modulated continuosly by a phase cut device 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.
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)
- 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

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
available 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 compres-
sor 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 compres-
sor 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 compres-
sor starts and to guarantee a more stable flow temperature.
Integrative
electrical
heaters
Standard in the flow
Integrate or replace the heating power supplied by the heat pump and are ma-
naged by the unit controller with a 2 step logic.
They are also activated as antifreeze electrical heaters.
Available only for the VB and VP versions.
Standard in the tank Integrate or replace the heating power supplied by the heat pump and are ma-
naged by the unit controller with a 2 step logic.
They are also activated as antifreeze electrical heaters.
Available only for the VA version.
Upsized in the tank
Soft starter Reduces the compressor start current.
Chiller (IR) without options (VB) Heat pump (IP) without options (VB)

9
GENERAL FEATURES
Accessories
Rubber vibration dampers Allow to reduce the transmission to the unit support plane of the mechanical vibrations generated by the com-
pressor 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 inter-
face 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.
Option "Storing and pumping module"
Pump (VP)
(standard, high head or modulating)
Option "Integrative electrical heaters"
Tank and pump (VA)
(standard, high head or modulating)
Standard in the flow
(only for VB and VP versions)
In the tank (standard or upsized)
(only for VA version)

10
TECHNICAL DATA AND PERFORMANCES
Frame 123
Model 6.1 7.1 9.1 11.1 14.1 17.1 U.M.
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50
400 - 3N - 50
230 - 1 - 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 rotary rotary scroll scroll scroll scroll -
Quantity 111111n°
Power steps 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 %
Oil charge 1,13 1,13 1,20 1,80 1,80 1,80 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 111111n°
Water volume 0,53 0,53 0,53 0,53 0,67 0,84 l
Source side heat exchanger
Type finned
coil
finned
coil
finned
coil
finned
coil
finned
coil
finned
coil -
Quantity 111111n°
Frontal surface 0,60 0,60 0,77 0,77 0,98 0,98 m2
Fans
Type axial axial axial axial axial axial -
Quantity 111122n°
Diameter 450 450 500 500 500 500 mm
Maximum rotational speed 900 900 900 900 900 900 rpm
Total installed power 0,15 0,15 0,21 0,21 0,42 0,42 kW
Plant side hydraulic circuit
Expansion vessel volume - VP 10 10 10 10 10 10 l
Expansion vessel volume - VA 555555l
Tank volume - VA 33 33 50 50 71 71 l
Safety valve set - VA 666666bar
Standard pump (option)
Type 3 speed
glandless pump
3 speed
glandless pump
3 speed
glandless pump
3 speed
glandless pump
multi stage
pump
multi stage
pump -
Installed power 0,15 0,15 0,15 0,15 0,25 0,25 kW
High head pump (option)
Type 3 speed
glandless pump
3 speed
glandless pump
multi stage
pump
multi stage
pump
multi stage
pump
multi stage
pump -
Installed power 0,20 0,20 0,25 0,25 0,35 0,35 kW
Modulating pump (option)
Type inverter
glandless pump
inverter
glandless pump
inverter
glandless pump
inverter
glandless pump
inverter
glandless pump
inverter
glandless pump -
Installed power 0,07 0,07 0,14 0,14 0,14 0,14 kW
Integrative electrical heaters standard in the flow (option)
Installed power 6,6 6,6 6,6 6,6 6,6 6,6 kW
Power steps 222222n°
Integrative electrical heaters in the tank (option)
Installed power - standard 3,3 3,3 3,3 3,3 3,3 3,3 kW
Installed power - upsized - - 6,6 6,6 6,6 6,6 kW
Power steps 222222n°

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TECHNICAL DATA AND PERFORMANCES
Frame 123
Model 6.1 7.1 9.1 11.1 14.1 17.1 U.M.
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50
400 - 3N - 50
230 - 1 - 50
400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 V-ph-Hz
NOMINAL performances - Standard plants
IR
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 6,24 7,24 9,12 10,6 14,1 16,7 kW
Power input 2,31 2,81 3,52 4,16 5,25 6,49 kW
EER 2,70 2,58 2,59 2,55 2,69 2,57 -
Water flow rate plant side 1074 1246 1573 1836 2437 2883 l/h
Pressure drops plant side 17 21 31 40 43 39 kPa
IP
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 6,12 7,10 8,95 10,4 13,8 16,4 kW
Power input 2,31 2,81 3,51 4,15 5,24 6,49 kW
EER 2,65 2,53 2,55 2,51 2,63 2,53 -
Water flow rate plant side 1054 1222 1543 1802 2385 2831 l/h
Pressure drops plant side 16 20 30 39 42 38 kPa
Heating A7W45 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C )
Heating capacity 6,78 7,87 9,95 11,7 15,4 18,2 kW
Power input 2,22 2,71 3,38 4,01 5,06 6,25 kW
COP 3,05 2,90 2,94 2,92 3,04 2,91 -
Water flow rate plant side 1154 1339 1690 1981 2612 3090 l/h
Pressure drops plant side 18 24 35 45 48 43 kPa
Heating A2W45 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 40°C out 45°C )
Heating capacity 5,60 6,50 8,21 9,61 12,7 15,1 kW
Power input 2,19 2,68 3,33 3,94 4,97 6,16 kW
COP 2,56 2,43 2,47 2,44 2,56 2,45 -
Water flow rate plant side 954 1106 1397 1632 2151 2561 l/h
Pressure drops plant side 13 17 25 33 35 32 kPa
Frame 123
Model 6.1 7.1 9.1 11.1 14.1 17.1 U.M.
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50
400 - 3N - 50
230 - 1 - 50
400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 V-ph-Hz
NOMINAL performances - 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 6,23 7,45 9,44 10,9 13,9 17,4 kW
EER 2,94 2,66 2,58 2,67 2,75 2,66 -
Pressure drops plant side 28 39 26 34 41 36 kPa
ESEER 3,33 3,01 2,92 3,02 3,11 3,01 -
IP
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity 6,02 7,14 9,24 10,7 13,7 17,2 kW
EER 2,83 2,54 2,52 2,62 2,71 2,63 -
Pressure drops plant side 26 36 25 33 40 35 kPa
ESEER 3,21 2,88 2,85 2,97 3,07 2,98 -
Heating A7W45 (air 7 °C bs - 6 °C bu / water 40 - 45 °C )
Heating capacity 6,96 8,14 10,3 11,4 15,2 18,5 kW
COP 3,15 3,03 2,86 2,86 3,15 2,95 -
Pressure drops plant side 34 45 31 37 48 40 kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.

12
TECHNICAL DATA AND PERFORMANCES
Frame 123
Model 6.1 7.1 9.1 11.1 14.1 17.1 U.M.
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50
400 - 3N - 50
230 - 1 - 50
400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 V-ph-Hz
NOMINAL performances - Radiant plants
IR
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity 7,48 8,67 10,9 12,7 16,8 20,0 kW
Power input 2,39 2,91 3,64 4,32 5,46 6,75 kW
EER 3,13 2,98 2,99 2,94 3,08 2,96 -
Water flow rate plant side 1290 1496 1889 2198 2920 3469 l/h
Pressure drops plant side 22 29 42 53 58 53 kPa
IP
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity 7,34 8,50 10,7 12,5 16,6 19,6 kW
Power input 2,39 2,91 3,64 4,31 5,45 6,74 kW
EER 3,07 2,92 2,94 2,90 3,05 2,91 -
Water flow rate plant side 1266 1467 1855 2164 2868 3400 l/h
Pressure drops plant side 22 28 41 52 56 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 6,92 8,03 10,2 11,9 15,7 18,6 kW
Power input 1,87 2,28 2,86 3,39 4,27 5,28 kW
COP 3,70 3,52 3,57 3,51 3,68 3,52 -
Water flow rate plant side 1183 1371 1731 2023 2674 3171 l/h
Pressure drops plant side 19 25 36 47 50 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 5,74 6,66 8,42 9,84 13,0 15,5 kW
Power input 1,84 2,25 2,81 3,32 4,18 5,18 kW
COP 3,12 2,96 3,00 2,96 3,11 2,99 -
Water flow rate plant side 982 1138 1437 1678 2211 2640 l/h
Pressure drops plant side 14 18 27 34 36 34 kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.

13
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

14
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

15
0
10
20
30
40
50
60
0 500 1000 1500 2000 2500 3000 3500 4000
TECHNICAL DATA AND PERFORMANCES
Plant side hydraulic performances
Pressure drops - unit without options
Pressure drops to be added - unit with option “Integrative electrical heaters” : "Standard in the flow"
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Flow rate [ l/h ]
Flow rate [ l/h ]
Pressure drops [ kPa ]Pressure drops [ kPa ]
0
10
20
30
40
50
60
0 500 1000 1500 2000 2500 3000 3500 4000
6.1
7.1
9.1
11.1
14.1
17.1

16
0
20
40
60
80
100
120
140
160
180
0 500 1000 1500 2000 2500 3000 3500 4000
0
20
40
60
80
100
120
140
160
180
0 500 1000 1500 2000 2500 3000 3500 4000
TECHNICAL DATA AND PERFORMANCES
Available static head - unit with option “Storing and pumping module” :
“Standard pump” or "Tank and standard pump"
Available static head - unit with option “Storing and pumping module” :
“High head pump” or "Tank and high head pump"
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Flow rate [ l/h ]
Flow rate [ l/h ]
Pressure drops [ kPa ]Pressure drops [ kPa ]
6.1
7.1
9.1
11.1
14.1
17.1
9.1
11.1
14.1
17.1
6.1
7.1

17
0
20
40
60
80
100
120
0 500 1000 1500 2000 2500 3000 3500 4000
TECHNICAL DATA AND PERFORMANCES
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 ]
Pressure drops [ kPa ]
6.1
7.1
9.1
11.1
14.1
17.1

18
TECHNICAL DATA AND PERFORMANCES
Operating limits
The graphs reported below show the operating area inside which the correct working of the unit is guaranteed.
-5
0
5
10
15
20
25
30
35
40
45
-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]
Temperature difference between unit inlet and outlet Plant side
DT max Maximum value 8°C
DT min Minimum value 3°C

19
TECHNICAL DATA AND PERFORMANCES
Electrical data
Frame 123
Model 6.1 7.1 9.1 11.1 14.1 17.1 U.M.
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 - - V-ph-Hz
F.L.A. Maximum total current input 13,4 17,1 22,0 24,8 - - A
F.L.I. Maximum total power input 2,9 3,7 4,7 5,3 - - kW
M.I.C.
Maximum total start current 82 112 141 174 - - A
Maximum total start current
with soft starter (option) 41 43 49 59 - - A
Power supply - - 400 -3N- 50 400 -3N- 50 400 -3N- 50 400 -3N- 50 V-ph-Hz
F.L.A. Maximum total current input - - 8,1 9,0 11,1 13,9 A
F.L.I. Maximum total power input - - 4,7 5,3 6,2 8,0 kW
M.I.C.
Maximum total start current - - 54 69 87 106 A
Maximum total start current
with soft starter (option) - - 33 40 48 55 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
400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50
F.L.A.
Maximum total current input
( 230V - 1 - 50Hz ) 28,7 28,7 28,7 28,7 28,7 28,7 A
Maximum total current input
( 400V - 3N - 50Hz ) 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 flow (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 0,8 0,8 0,8 0,8 1,3 1,3 A
F.L.I. Maximum total power input 0,15 0,15 0,15 0,15 0,25 0,25 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 1,0 1,0 1,3 1,3 1,8 1,8 A
F.L.I. Maximum total power input 0,20 0,20 0,25 0,25 0,35 0,35 kW
High head 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 0,4 0,4 0,7 0,7 0,7 0,7 A
F.L.I. Maximum total power input 0,07 0,07 0,14 0,14 0,14 0,14 kW
Modulating pump (option)
Power supply
230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 - -
V-ph-Hz
- - 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50
F.L.A.
Maximum total current input
( 230V - 1 - 50Hz ) 14,3 14,3 14,3 14,3 - - A
Maximum total current input
( 400V - 3N - 50Hz ) - - 4,8 4,8 4,8 4,8 A
F.L.I. Maximum total power input 3,3 3,3 3,3 3,3 3,3 3,3 kW
Integrative electrical heaters standard in the tank (option)
Power supply
230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 - -
V-ph-Hz
- - 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50
F.L.A.
Maximum total current input
( 230V - 1 - 50Hz ) - - 28,7 28,7 - - A
Maximum total current input
( 400V - 3N - 50Hz ) - - 9,5 9,5 9,5 9,5 A
F.L.I. Maximum total power input - - 6,6 6,6 6,6 6,6 kW
Integrative electrical heaters upsized in the tank (option)

20
TECHNICAL DATA AND PERFORMANCES
Noise levels
Model
Sound power levels [dB]
by octave bands [Hz]
Sound power
level
Sound pressure level
at 1 metre at 5 metres at 10 metres
63 125 250 500 1000 2000 4000 8000 [dB] [dB(A)] [dB(A)] [dB(A)] [dB(A)]
6.1 74,6 72,5 70,8 67,1 63,6 59,4 53,7 46,2 78 69 55 44 38
7.1 74,6 72,5 70,8 67,1 63,6 59,4 53,7 46,2 78 69 55 44 38
9.1 77,4 75,3 73,6 69,9 66,4 62,2 56,5 49,0 81 72 57 46 41
11.1 77,4 75,3 73,6 69,9 66,4 62,2 56,5 49,0 81 72 57 46 41
14.1 79,5 77,4 75,7 72,0 68,5 64,3 58,6 51,1 83 74 59 48 43
17.1 79,5 77,4 75,7 72,0 68,5 64,3 58,6 51,1 83 74 59 48 43
Reference conditions
Performances referred to units operating in cooling mode at nominal conditions A35W7.
Unit placed in free field on reflecting surface (directional factor equal to 2).
The sound power level is measured according to ISO 3744 standard.
The sound pressure level is calculated according to ISO 3744 and is referred to a distance of 1/5/10 metres from the external surface of the unit.