Strebel 30 User manual

STREBEL
S-ASX Air Source
Heat Pump
Models 30 –35 –40 –45 –50
Installation, Operating & Maintenance Manual
Please read and understand before commencing installation and leave the manual with the customer for future reference.
2020-04-01 v1

2
The manufacturer declines all the responsibility 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.

3
TABLE OF CONTENTS
GENERAL FEATURES........................................................................................................................................................... 4
General Instructions........................................................................................................................................................... 4
Declaration of Conformity .................................................................................................................................................. 4
Unit Data Plate................................................................................................................................................................... 4
Unit Description ................................................................................................................................................................. 5
Unit Identification Code...................................................................................................................................................... 5
Description of Components................................................................................................................................................ 6
Control System .................................................................................................................................................................. 7
Options .............................................................................................................................................................................. 8
Accessories ....................................................................................................................................................................... 10
TECHNICAL DATA AND PERFORMANCES.......................................................................................................................... 11
Technical Data ................................................................................................................................................................... 11
NOMINAL Performances - VERY HIGH TEMPERATURE plants ...................................................................................... 12
NOMINAL Performances - HIGH TEMPERATURE plants................................................................................................. 13
NOMINAL Performances - STANDARD plants .................................................................................................................. 14
NOMINAL Performances - RADIANT plants ...................................................................................................................... 15
HEATING Performances .................................................................................................................................................... 16
COOLING Performances ................................................................................................................................................... 17
Plant Side Hydraulic Performances ................................................................................................................................... 18
Source Side Aeraulic Performances .................................................................................................................................. 21
Operating Limits................................................................................................................................................................. 22
Electrical Data.................................................................................................................................................................... 24
Noise Levels ...................................................................................................................................................................... 25
Weights.............................................................................................................................................................................. 26
Overall Dimensions............................................................................................................................................................ 27
Minimum Operating Area ................................................................................................................................................... 28
CONNECTIONS...................................................................................................................................................................... 30
Hydraulic Connections ....................................................................................................................................................... 30
Electrical Connections ....................................................................................................................................................... 31
RECEIVING AND POSITIONING............................................................................................................................................ 32
Receiving........................................................................................................................................................................... 32
Positioning ......................................................................................................................................................................... 32
START UP .............................................................................................................................................................................. 33
Start Up.............................................................................................................................................................................. 33
CONTROL SYSTEM............................................................................................................................................................... 34
Control System Configuration ............................................................................................................................................ 34
Heating and Cooling Circuits ............................................................................................................................................. 35
Control System Devices Installation................................................................................................................................... 36
Wireless Devices Connection ............................................................................................................................................ 38
Control System Use........................................................................................................................................................... 39
Control System Programming............................................................................................................................................ 42
Menu Structure .................................................................................................................................................................. 42
Remote Thermostat Programming..................................................................................................................................... 44
Remote Control (wired or wireless) Programming ............................................................................................................. 44
Functions Available for the User ........................................................................................................................................ 44
Inputs and Outputs ............................................................................................................................................................ 46
Alarms ............................................................................................................................................................................... 47
Alarms Table...................................................................................................................................................................... 47
Controller Technical Data .................................................................................................................................................. 50
Sensors Features .............................................................................................................................................................. 51
MAINTENANCE...................................................................................................................................................................... 52
Maintenance ...................................................................................................................................................................... 52
SAFETY AND POLLUTION.................................................................................................................................................... 53

GENERAL FEATURES
4
General Instructions
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 data plate 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 specialised service centres recognised by the manufacturer and use original spare parts.
The unit must be installed outdoors or indoors 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 responsibility for damage or injury due to non-compliance with the information given in this manual.
Declaration of Conformity
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
Unit Data Plate
The figure shows the fields reported on the unit data plate:
A - Trademark
B - Model
B1 - Code
C - Serial number
D - Capacity in cooling at the condition A35W18
E - Capacity in heating (heat pump) at the condition A7W35
F - Power input in cooling at the condition A35W18
G - Power input in heating (heat pump) at the condition A7W35
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
Codice
Code
Ferroli Spa
Via Ritonda 78/A
(VR) Italy
B1
Rev

5
GENERAL FEATURES
AB - Base setting up
VB - Base version
0 - R410A
H - High temperature.
The unit is suitable to produce
water at high temperature.
IP - Units suitable for hydronic plant
installation operating as reversible heat
pumps
1 - 230V - 1 - 50 Hz
5 - 400V - 3N - 50 Hz
S-ASX IP 45 .1 VB AB 0 H 5
Acoustic setting up
Unit version
N° compressors
Refrigerant type
Unit model
Operating range
Unit type
Power supply
Unit Description
This series of air to water heat pumps satisfies the heating,
cooling and domestic hot water production requirements of
residential plants of small and medium size.
All the units are suitable both for outdoor and indoor
installation. The possibility to produce water at high
temperatures makes these units particularly suitable to be
applied to radiators plants as well as to fan coil plants and
radiant floor plants.
The control system allows to manage not only the refrigerant
circuit but the whole plant with the possibility to choose different
solutions both for the heating and cooling plant and for the
domestic hot water management. The possibility of solar panels
or other heating sources integration is also available.
The heating function optimizes the flow water temperature
according both to the ambient temperature and to the outdoor
temperature through climatic curves adaptable to the building
features. It’s possible to manage a storage tank and two
independent circuits (a direct one and a mixed one).
The domestic hot water management allows to control the
three way valve, the storage tank and the anti-legionella cycles
(if necessary).
The cooling function can be realised through “active cooling”
(refrigerant circuit inversion). When the unit is used in radiant
floor plants, to avoid condensate generation, a room humidity
sensor can be installed.
The internal programmer clock allows to define different daily
switching programs for heating, cooling and domestic hot water
production.
The refrigerant circuit, contained in a box repaired from the air
flow to simplify the maintenance operations, is equipped with
scroll compressor mounted on damper supports, brazed plate
heat exchangers, electronic expansion valve, reverse cycle
valve, centrifugal fan (plug fan), finned coil realized with copper
pipes and aluminium fins. The circuit is protected by high and
low pressure switches and flow switches on the plate heat
exchanger.
The compressor is equipped with vapour and liquid injection
and is placed on an economized refrigerant circuit with plate
heat exchanger and electronic expansion valve dedicated to the
injection.
The plate heat exchanger and all the hydraulic pipes are
thermally insulated in order to avoid condensate generation
and reduce thermal losses.
The plug fan with electronic control of the rotational speed
guarantees high efficiencies and low noise in all the operating
conditions and allows to install the unit both outdoor (with
protection caps) or indoor (with ducted air inlet and outlet). It is
moreover possible to reduce the noise during the night.
All the units with three-phase power supply are provided with
a phase sequence and correct sequence controller device and
with an outdoor temperature sensor in order to realize the
climatic control.
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.

6
GENERAL FEATURES
5
1
Description of Components
External structure: Basement, supporting structure and lateral
panels are made of galvanized and painted sheet-steel to
guarantee good resistance to atmospheric agents. Accessibility
to internal parts is possible removing the lateral panels. For
extraordinary maintenance also the other panels can be
removed.
Refrigerant circuit: It is contained inside a compartment
separated from the air flow to simplify maintenance and control
operations.
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, liquid receiver (7) to compensate the different refrigerant
charge required in heating and in cooling mode 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 expansion valve
upstream pressure). All the pipes of the refrigerant circuit are
properly insulated to avoid condensate generation and minimize
thermal losses
The plug fan (8) is equipped with a high efficiency electronically
commutated (EC) motor and guarantees enough available static
pressure to allow both the outdoor and the indoorinstallation.
Hydraulic circuit: All the pipes are thermally insulated to avoid
condensate generation and minimize thermal losses. The circuit
can be equipped with a high head (option) or modulating
circulation pump (standard supply). The circuit is always
equipped also with expansion vessel, safety valve and air
vents.
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, to be placed indoor, allows to view and to
modify, if necessary, all the parameters of the unit.
All the units are supplied with an outdoor temperature sensor,
to be installed outside, in order to realize the climatic control.
The hermetic scroll compressor (1) is mounted on damper
supports and is protected against overtemperatures and
overcurrent. It is equipped with an electrical 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.
The compressor is equipped with vapour and liquid injection
and is placed on an economized refrigerant circuit with plate
heat exchanger and electronic expansion valve dedicated to the
injection. 8
The plant side heat exchanger (2) is a brazed stainless steel 3
plate heat exchanger, properly insulated to avoid condensate
generation and to minimize thermal losses and protected by a
flow switch that detects whatever water flow lack.
The source side heat exchanger (3) is a finned coil realized 6
with grooved copper pipes and hydrophilic aluminium fins with
waved profile to increase the heat exchange coefficient. A tray
is placed under the coil to collect the condensate generated in 2
heating mode.
The expansion device (4), an electronic expansion valve, 4
allows the unit to adjust itself to the different operating conditions 7
keeping steady the set superheating.

7
GENERAL FEATURES
Control System
The microprocessor controller can manage not only the unit
itself but also all that components of the plant which allow to
realize a complete system.
The main functions of the control system are:
- Room temperature control according to the outdoor
temperature (climatic control).
- Domestic hot water production (management of 3 way valve,
storage tank, anti-legionella cycles).
- Management of a heating and/or cooling mixed circuit (pump
and 3 way mixing valve).
- Management of a heating direct circuit (only pump).
- Management of a storage tank for heating and/or cooling.
- Management of electrical heaters for heating and domestic
hot water (3 steps logic).
- Solar panels integration.
- Room humidity control for cooling with radiant systems.
- Internal programmer clock (for heating, cooling and domestic
hot water).
- Digital input for electrical energy low tariff.
- Alarm memory management and diagnostic.
- Compressor and pump operating hour counter.
- Possibility to manage more units in cascade (maximum 16).
Besides the user interface of the unit to be placed indoor, wired
or wireless remote thermostats are available which allow to
control all the operating parameters of the unit and to acquire
the temperature in the different zones in order to realize a more
precise and comfortable control.
The unit controller is able to manage a lot of different plant
solutions enabling automatically the necessary control
algorithms according to the components which have been
connected. The management of such components is possible
through additional expansion modules which communicate with
the unit by means of an internal bus and provide all the inputs
and outputs required to fulfil a complete system.
The controller can manage up to two zones in heating (one by
means of a mixed circuit and the other by means of a direct
circuit) and one zone in cooling (by means of a mixed circuit).
It’s possible to control more complex plants connecting to the
heat pump controller further expansion modules in order to
extend without limits the number of zones to be managed.
For each zone the following parameters can be set:
- Set point.
- Daily or weekly operating timetable.
- Climatic control curve.
- Room control sensor: It can be in common with the other
zones or independent (in that case it’s necessary to install
an additional room thermostat).
FS
18 : 28
20.5 C
Room temperature

8
GENERAL FEATURES
Options
Plant side flow rate
management
High head pump (Option)
Allows the circulation of the water on the plant side and guarantees a higher
available static head.
Modulating pump (Standard Supply)
Allows the circulation of the water on the plant side keeping constant the
temperature difference between inlet and outlet.
Domestic hot water
production
3 way valve
Allow to divert the hot water produced by the heat pump from the heating circuit
to the domestic hot water circuit.
Integrative electrical heaters
Integrate or replace the heating power supplied by the heat pump and are
managed by the unit controller with a 3 step logic.
Soft starter
Reduces the compressor start current.
The controller flexibility and the big number of options available
allow to get, for each model, a lot of different configurations that
integrate inside the heat pump many components of the plant
and allow to realize compact and tested installations.
In order to select the right configuration it is necessary to define
the type of plant to which the heat pump will be connected,both
for what concerning the heating and cooling circuits, and for
what concerning the domestic hot water management.
Reversible Heat Pump (IP) without Options
Option: Plant Side Flow Rate Management
Pump (high head or modulating)
Option: Integrative Electrical Heaters

9
GENERAL FEATURES
Option: Domestic Hot Water Production
–3 Way Valve
In this configuration the heat pump can
be coupled to a domestic hot water tank
equipped with a coil designed for a
maximum water temperature between
55°C and 60°C.
The anti-legionella cycles have to be
performed by means of electrical heaters
placed on the heat pump outlet (see
option “Integrative electrical heaters”) or
directly inside the tank.

10
GENERAL FEATURES
Accessories
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.
Adjustable 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. Their height can be adjusted to fit to the ground unevenness.
Protection cap
Protect the external surface of the finned coil when it is installed on the air suction side) and the fan (when it is
installed on the air expulsion side) and reduce the noise emitted by the unit.
Lateral expulsion cap
Protect the fan and reduce the noise emitted by the unit. It must be connected to one of the two lateral air flow
openings and requires the installation of the accessory “Frontal shutting panel”.
Frontal shutting panel
Allow to close the frontal air flow opening when the lateral air flow openings are used.
3 way valve
for domestic hot water
Allow to divert the hot water produced by the heat pump from the heating circuit to the domestic hot water circuit.
Remote thermostat
(wired or wireless)
Allows operating mode selection and set point adjustment. The on board temperature sensor can be used in order
to realize a climatic control.
Remote control
(wired or wireless)
Replicates all the control and visualization functionalities of the controller installed on the unit. The on board
temperature sensor can be used in order to realize a climatic control.
LPB bus interface
Connected to the unit controller, allows to communicate on the LPB bus, required for the cascade management.
Wireless transmitter
Connected to the unit controller, allows to communicate with wireless remote control and wireless outdoor
temperature sensor.
BSB wireless transmitter
Connected to the communication bus (BSB) of the unit controller, allows to communicate with the wireless remote
control and the wireless outdoor temperature sensor.
Wireless repeater
Extends wireless operating range.
Wireless adaptor for
outdoor temperature sensor
Allows to transform the wired outdoor temperature sensor, standard for all the units, in a wireless sensor.
Condensate sensor
In cooling mode, it allows the minimum flow temperature control when condensate generation occurs.
Room hygrostat
In cooling mode, it allows the minimum flow temperature control according to the room humidity.
Room humidity sensor
(with or without display)
In cooling mode, it allows the minimum flow temperature control according to the room dew point, calculated from
the measured room humidity.
Transformer
230V / 24V - 3VA
It assures the correct power supply for the condensate sensor and for the room humidity sensor.
N. B. For OUTDOOR INSTALLATION is MANDATORY one of the two following solutions:
- Installation of the accessory “Protection cap” on the air expulsion side –Supplied as standard.
- Installation of the accessories “Lateral expulsion cap” and “Frontal shutting panel.”

TECHNICAL DATA AND PERFORMANCES
11
Technical Data
Frame
1
2
Model
30
35
40
45
50
U.M.
Power supply
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
V-ph-Hz
Refrigerant
Type
R410A
-
Compressor
Type
Scroll with vapor injection (EVI)
-
Quantity
1
n°
Power steps
0 - 100
%
Oil charge
3.4
3.4
3.4
3.4
3.4
kg
Plant side heat exchanger
Type
Stainless steel brazed plates
-
Quantity
1
n°
Water volume
4.18
4.18
4.18
5.14
5.14
l
Source side heat exchanger
Type
Finned coil
-
Quantity
1
n°
Frontal surface
1.10
1.10
1.10
1.43
1.43
m2
Fans
Type
Plug fan with high efficiency EC motor
-
Quantity
1
n°
Diameter
630
630
630
630
630
mm
Maximum rotational speed
680
680
680
1200
1200
rpm
Total installed power
0.54
0.54
0.54
2.80
2.80
kW
Plant side hydraulic circuit
Expansion vessel volume
10
10
10
10
10
l
Safety valve set point
3
bar
Plant pump –High efficiency modulating pump (Standard Supply)
Type
Inverter glandless pump
-
Quantity
1
n°
Installed power
0.31
0.31
0.31
0.31
0.31
kW
Plant pump - high head (option)
Type
Centrifugal pump
-
Quantity
1
n°
Installed power
1.2
1.2
1.2
1.6
1.6
kW
Integrative electrical heaters (option)
Total installed power
18.0
18.0
18.0
18.0
18.0
kW
Power steps
0 - 33 - 66 - 100
%

TECHNICAL DATA AND PERFORMANCES
12
NOMINAL Performances - VERY HIGH TEMPERATURE plants
Frame
1
2
Model
30
35
40
45
50
U.M.
Power supply
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
V-ph-Hz
IP
Heating A7W65 (Source: Air in 7°C d.b. 6°C w.b. / Plant: Water in 55°C out 65°C)
Heating capacity
30.7
36.1
40.5
46.3
53.0
kW
Power input
12.3
14.5
16.2
18.6
21.3
kW
COP
2.50
2.49
2.50
2.49
2.49
-
Water flow rate plant side
2686
3158
3543
4051
4628
l/h
Pressure drop plant side
6
9
11
9
12
kPa
Heating A2W65 (Source: Air in 2°C d.b. 1°C w.b. / Plant: Water in 55°C out 65°C)
Heating capacity
26.3
31.0
34.7
39.7
45.3
kW
Power input
12.4
14.5
16.2
18.6
21.2
kW
COP
2.12
2.14
2.14
2.13
2.14
-
Water flow rate plant side
2301
2712
3036
3473
3963
l/h
Pressure drop plant side
5
6
8
7
9
kPa
Heating A-4W65 (Source: Air in -4°C d.b. -5°C w.b. / Plant: Water in 55°C out 65°C)
Heating capacity
24.3
28.6
32.1
36.7
41.8
kW
Power input
12.2
14.6
16.3
18.6
21.3
kW
COP
1.96
1.96
1.97
1.97
1.96
-
Water flow rate plant side
2126
2502
2808
3211
3657
l/h
Pressure drop plant side
4
6
7
6
8
kPa
Heating A-7W65 (Source: Air in -7°C d.b. -8°C w.b. / Plant: Water in 55°C out 65°C)
Heating capacity
23.0
27.1
30.3
34.7
39.6
kW
Power input
12.4
14.6
16.3
18.7
21.3
kW
COP
1.85
1.86
1.86
1.86
1.86
-
Water flow rate plant side
2012
2371
2651
3036
3464
l/h
Pressure drop plant side
4
5
6
5
7
kPa
Data declared according to EN 14511. The values are referred to units without options or accessories.

TECHNICAL DATA AND PERFORMANCES
13
NOMINAL Performances - HIGH TEMPERATURE plants
Frame
1
2
Model
30
35
40
45
50
U.M.
Power supply
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
V-ph-Hz
Data declared according to EN 14511.
The values are referred to units without options or accessories.
IP
Heating A7W55 (Source: Air in 7°C d.b. 6°C w.b. / Plant: Water in 47°C out 55°C)
Heating capacity
30.0
35.3
39.7
45.4
51.7
kW
Power input
9.89
11.6
13.1
15.0
17.1
kW
COP
3.03
3.04
3.03
3.03
3.02
-
Water flow rate plant side
3269
3846
4315
4936
5623
l/h
Pressure drops plant side
9
12
15
14
17
kPa
Heating A2W55 (Source: Air in 2°C d.b. 1°C w.b. / Plant: Water in 47°C out 55°C)
Heating capacity
25.6
30.1
33.7
38.6
44.1
kW
Power input
9.91
11.6
13.0
14.9
17.1
kW
COP
2.58
2.59
2.59
2.59
2.58
-
Water flow rate plant side
2789
3280
3672
4206
4794
l/h
Pressure drops plant side
7
9
11
10
13
kPa
Heating A-4W55 (Source: Air in -4°C d.b. -5°C w.b. / Plant: Water in 47°C out 55°C)
Heating capacity
23.5
27.6
31
35.4
40.4
kW
Power input
9.93
11.7
13
14.9
17.1
kW
COP
2.37
2.36
2.38
2.38
2.36
-
Water flow rate plant side
2561
3007
3378
3857
4402
l/h
Pressure drop plant side
6
8
10
9
11
kPa
Heating A-7W55 (Source: Air in -7°C d.b. -8°C w.b. / Plant: Water in 47°C out 55°C)
Heating capacity
22.1
26.1
29.2
33.4
38.1
kW
Power input
9.94
11.7
13.1
15.0
17.1
kW
COP
2.22
2.23
2.23
2.23
2.23
-
Water flow rate plant side
2408
2844
3182
3639
4152
l/h
Pressure drops plant side
5
7
9
8
10
kPa

TECHNICAL DATA AND PERFORMANCES
14
NOMINAL Performances - STANDARD plants
Frame
1
2
Model
30
35
40
45
50
U.M.
Power supply
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
V-ph-Hz
IP
Heating A7W45 (Source: Air in 7°C d.b. 6°C w.b. / Plant: Water in 40°C out 45°C)
Heating capacity
29.6
34.8
39.1
44.6
51.0
kW
Power input
8.07
9.54
10.7
12.2
14.0
kW
COP
3.67
3.65
3.65
3.66
3.64
-
Water flow rate plant side
5127
6013
6761
7716
8811
l/h
Pressure drops plant side
22
29
36
32
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
25.1
29.5
33.1
37.8
43.2
kW
Power input
8.06
9.52
10.6
12.2
14.0
kW
COP
3.11
3.10
3.12
3.10
3.09
-
Water flow rate plant side
4345
5109
5735
6552
7473
l/h
Pressure drops plant side
16
21
27
23
30
kPa
Heating A-4W45 (Source: Air in -4°C d.b. -5°C w.b. / Plant: Water in 40°C out 45°C)
Heating capacity
22.9
27.0
30.3
34.6
39.6
kW
Power input
8.08
9.53
10.7
12.2
14.0
kW
COP
2.83
2.83
2.83
2.84
2.83
-
Water flow rate plant side
3980
4675
5249
5996
6847
l/h
Pressure drop plant side
13
18
23
20
26
kPa
Heating A-7W45 (Source: Air in -7°C d.b. -8°C w.b. / Plant: Water in 40°C out 45°C)
Heating capacity
21.5
25.4
28.4
32.5
37.1
kW
Power input
8.08
9.54
10.7
12.2
13.9
kW
COP
2.66
2.66
2.65
2.66
2.67
-
Water flow rate plant side
3737
4397
4918
5631
6430
l/h
Pressure drops plant side
12
16
20
17
22
kPa
Cooling A35W7 (Source: Air in 35°C d.b. / Plant: Water in 12°C out 7°C)
Cooling capacity
22.7
26.6
29.9
34.1
38.9
kW
Power input
7.15
8.42
9.44
10.8
12.4
kW
EER
3.17
3.16
3.17
3.16
3.14
-
Water flow rate plant side
3896
4582
5148
5869
6710
l/h
Pressure drops plant side
13
18
22
19
25
kPa
Data declared according to EN 14511. The values are referred to units without options or accessories.

TECHNICAL DATA AND PERFORMANCES
15
NOMINAL Performances - RADIANT plants
Frame
1
2
Model
30
35
40
45
50
U.M.
Power supply
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
400 -3N- 50
V-ph-Hz
IP
Heating A7W35 (Source: Air in 7°C d.b. 6°C w.b. / Plant: Water in 30°C out 35°C)
Heating capacity
29.2
34.4
38.6
44.1
50.4
kW
Power input
6.32
7.48
8.40
9.59
11.0
kW
COP
4.62
4.60
4.60
4.60
4.58
-
Water flow rate plant side
5039
5923
6650
7602
8676
l/h
Pressure drops plant side
21
28
35
31
40
kPa
Heating A2W35 (Source: Air in 2°C d.b. 1°C w.b. / Plant: Water in 30°C out 35°C)
Heating capacity
24.7
29.0
32.6
37.2
42.5
kW
Power input
6.32
7.46
8.36
9.55
11.0
kW
COP
3.91
3.89
3.90
3.90
3.86
-
Water flow rate plant side
4260
5005
5628
6425
7325
l/h
Pressure drops plant side
15
21
26
22
29
kPa
Heating A-4W35 (Source: Air in -4°C d.b. -5°C w.b. / Plant: Water in 30°C out 35°C)
Heating capacity
22.4
26.5
29.7
33.9
38.8
kW
Power input
6.34
7.47
8.37
9.57
11.0
kW
COP
3.53
3.55
3.55
3.54
3.53
-
Water flow rate plant side
3879
4572
5126
5853
6685
l/h
Pressure drops plant side
13
17
22
19
24
kPa
Heating A-7W35 (Source: Air in -7°C d.b. -8°C w.b. / Plant: Water in 30°C out 35°C)
Heating capacity
21.0
24.8
27.8
31.7
36.2
kW
Power input
6.34
7.47
8.37
9.57
10.9
kW
COP
3.31
3.32
3.32
3.31
3.32
-
Water flow rate plant side
3637
4277
4797
5472
6252
l/h
Pressure drops plant side
11
15
19
17
21
kPa
Cooling A35W18 (Source: Air in 35°C d.b. / Plant: Water in 23°C out 18°C)
Cooling capacity
29.8
35.0
39.3
44.9
51.2
kW
Power input
7.74
9.15
10.2
11.7
13.4
kW
EER
3.85
3.83
3.85
3.84
3.82
-
Water flow rate plant side
5155
6069
6811
7776
8880
l/h
Pressure drops plant side
22
30
37
32
42
kPa
Data declared according to EN 14511. The values are referred to units without options or accessories.

TECHNICAL DATA AND PERFORMANCES
16
HEATING Performances
Heating capacity
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 = 65°C
B = 55°C
C = 45°C
D = 35°C
E = 25°C
Inlet air temperature w.b. [°C]
Power input COP
Inlet air temperature w.b. [°C] Inlet air temperature w.b. [°C]

TECHNICAL DATA AND PERFORMANCES
17
COOLING Performances
Cooling capacity
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
Inlet air temperature d.b. [°C]
Power input EER
Inlet air temperature d.b. [°C] Inlet air temperature d.b. [°C]

TECHNICAL DATA AND PERFORMANCES
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
18
Plant Side Hydraulic Performances
Pressure drops - unit without options
Pressure drops to be added - unit with Integrative electrical heaters option.

TECHNICAL DATA AND PERFORMANCES
19
Available static head - Unit with option “Plant side flow rate management”: High Head Pump Option
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).

TECHNICAL DATA AND PERFORMANCES
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
20
Available static head - Unit with option “Plant side flow rate management”: Modulating Pump (Standard supply).