Ferroli HSW 3.1 User manual

HSW
WATER - WATER AND BRINE - WATER
EAT PUMPS
FOR INDOOR INSTALLATION
R410A
INSTALLATION AND OPERATION MANUAL

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 guaran-
tees 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.
Thank you once again for your preference.
FERROLI S.p.A
.
“EG” KONFORMITÄTSERKLÄRUNG
DECLARATION “CE” DE CONFORMITE
DICHIARAZIONE “CE” DI CONFORMITÀ
DECLARACION “CE” DE CONFORMIDAD
DECLARAÇÃO “CE” DE CONFORMIDADE
“EG” CONFORMITEITSVERKLARING
“CE” OVERENSSTEMMELSESERKLERING
FÖRSÄKRAN OM “CE” ÖVERENSSTÄMMELSE
BEKREFTELSE OM ÆCEØ OVERENSSTEMMELSE
“CE” VAATIMUSTENMUKAISUUSVAKUUTUS
IZJAVA O “CE” SUGLASNOSTI
3QE22170 rev.03
DE
GB
FR
IT
ES
PT
NL
DK
SE
NO
FI
GR
HR
DEKLARACJA ZGODNOŚCI “CE”
PL My niżej podpisani oświadczamy z pełną
odpowiedzialnością, że niżej wymienione urządzenie w
pełni odpowiada postanowieniom przyjętym w
następujących Dyrektywach:
“CE” DECLARATION OF CONFORMITY
We, the undersigned, hereby declare under our
responsibility, that the machine in question complies
with the provisions established by Directives :
Wir, die Unterzeichner dies er Erklärung, erklären unter
unseren ausschlie ßlichen Verantworfung, daß die
genannte Maschine den Bestimmungen der folgenden
EG-Richtlinien entspricht :
Nous soussignés déclarons, sous notre entière
responsabilité, que la machine en objet est conforme
aux prescriptions des Directives :
Noi sottoscritti dichiariamo, sotto la nostra respon-
sabilità, che la macchina in questione è conforme alle
prescrizioni delle Direttive :
Quienes subscribimos la presente declaracion,
declaramos, baio nuestra exclusiva responsabilidad,
que la maquina en objeto respeta lo prescrito par las
Directivas :
Nós, signatários da presente, declaramos sob a
nassa exclusiva responsabilidade, que a má quina
em questão está em conformidade com as
prescrições das Directrizes :
Wij ondergetekenden verklaren hierbij op uitsluitend
eigen verantwoording dat de bovengenoemde machine
conform de voorschriften is van de Richtlijnen:
Underfegnede forsikrer under eget ansvar al den
ovennævnte maskine er i overensstemmelse med
vilkårene i direktiveme :
Underfecknade försäkrar under eget ansvar alt
ovannämnda maskinskinen er i overensstemmelse
med vilkarene i direktivene :
Underfegnede forsikrer under eget ansvar al den
ovennevnte maskinen er i overensstemmelse med
vilkarene i direktivene :
Allekirjoittaneet vakuutamme omalla vastuullamme
että yllämainittu kone noudattaa ehtoja direkti-
iveissä :
Εµετς που υπογραϕουµε την παρουσα, δηλωνουµε υπο
την αποκλειστικη µας ευθυνη, οτι το µηχανηµα
συµµορϕουται οτα οσ α ορτζουν οι Οδηγιες :
Mi niže potpisani izjavljujemo, pod našom
odgovornošu, da ova Mašina odgovara zahtijevima iz
Direktiva :
2006/42/EC
97/23/EC
2004/108/EC
2006/95/EC
∆ΗΛΩΣΗ ΣΥΜΒΑΤΟΤΗΤΑΣ “EE”
2

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
OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
TECHNICAL DATA AND PERFOR ANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
TEC NICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
NOMINAL PERFORMANCES - LOW TEMPERATURE PLANTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
NOMINAL PERFORMANCES - MEDIUM TEMPERATURE PLANTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
EATING PERFORMANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
COOLING PERFORMANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
PLANT SIDE YDRAULIC PERFORMANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
SOURCE SIDE YDRAULIC PERFORMANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
DOMESTIC OT WATER SIDE YDRAULIC PERFORMANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
OPERATING LIMITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
NOISE LEVELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
WEIG TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
OVERALL DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
MINIMUM OPERATING AREA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
YDRAULIC CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
RECEIVING AND POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
CONTROL SYSTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
CONTROL SYSTEM CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
EATING AND COOLING CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
CONTROL SYSTEM DEVICES INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
WIRELESS DEVICES CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
CONTROL SYSTEM USING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
CONTROL SYSTEM PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
MENU STRUCTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
REMOTE T ERMOSTAT PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
REMOTE CONTROL PROGRAMMING (WIRED OR WIRELESS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
FUNCTIONS AVAILABLE FOR T E USER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
INPUTS AND OUTPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
ALARMS TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
CONTROLLER TEC NICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
SENSORS FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
AINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
SAFETY AND POLLUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
GENERAL CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
REFRIGERANT SAFETY CARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

GENERAL FEATURES
This manual and the wiring diagram supplied with the unit must be kept in a dry place for possible future consultations .
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 cor-
rect 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 fixings, contact only specialized service centers recognized by the manufacturer and use original spare parts.
The unit must be installed indoor and connected to a hydronic heating and/or cooling system. Any use different from that per-
mitted 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 2006/42/EC
•Pressure equipment directive (PED) 97/23/EC
•Electromagnetic compatibility directive (EMC) 2004/108/EC
•Low voltage directive (LVD) 2006/95/EC
A - Trademark
B - Model
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)
- Reference standard
I - Power supply
L - Maximum absorbed current
M - Refrigerant type and charge weight
N - Unit shipping 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
The figure on the right shows the fields reported on the unit dataplate :
General instructions
Declaration of conformity
Unit dataplate
4

5
Unit description
GENERAL FEATURES
Unit identification code
This series of water-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 for indoor installation and can be
applied to fan coil plants, radiant floor plants and high effi-
ciency radiators plants.
As source both water (from well, river, lake…) or brine solu-
tions (from geothermic probes) can be used.
The control system allows to manage not only the refrigerant
circuit but the whole plant with the possibility to choose diffe-
rent 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 inde-
pendent 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 realized through “passive
cooling” (free cooling) , through “active cooling” (refrigerant
circuit inversion) or through both systems actuated in sequen-
ce. When the unit is used in radiant floor plants, to avoid con-
densate 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 an extractable box to sim-
plify the maintenance operations, is equipped with rotary com-
pressor mounted on damper supports, brazed plate heat
exchangers, thermostatic expansion valve and reverse cycle
valve (for reversible units). The circuit is protected by high and
low pressure switches and flow switches on both the exchan-
gers.
The outdoor structure and the refrigerant circuit box are both
thermally and acoustically insulated in order to create a
double wall against sound propagation and to allow the instal-
lation in domestic places.
To avoid vibration propagation towards the hydraulic circuit the
refrigerant circuit box is placed on damper supports and the
connection pipes are flexible. Moreover all the hydraulic pipes
are thermally insulated to avoid condensate generation.
All the units are accurately built and individually tested in the
factory. Only electric and hydraulic connections are required
for installation.
The codes that identify the units and the meaning of the letters used are described below.
Power supply
1- 230V - 1 - 50 z
5- 400V - 3N - 50 z
Refrigerant type
0- R410A
Unit model
N° compressors
VB - Base Version
Unit version
Unit type
IH - Units suitable for
hydronic plant installation
operating as heat pumps
IP - Units suitable for
hydronic plant installation
operating as reversible heat
pumps
HSW IH 7.1 VB AB 0 1
Operating range
- Medium temperature.
The unit is suitable to pro-
duce water at medium tem-
perature
AB - Base setting up
Acoustic setting up

GENERAL FEATURES
Description of components
External structure. Basement, lateral panels and frontal
panel, are completely thermally and acoustically insulated in
order to minimize thermal losses and noise emissions in the
surroundings. Accessibility to internal parts is possible remo-
ving the frontal panel and the upper panel. For extraordinary
manteinances also the rear panel can be removed.
Refrigerant circuit. It is contained inside an extractable box
to simplify the maintenance operations. The box is placed on
rubber vibration dampers and is connected to the hydraulic
circuit through flexible pipes in order to avoid the propagation
of the vibrations generated by the compressor outside the
unit. The hermetic rotary compressor (1) is mounted on dam-
per supports and is protected against overtemperatures and
overcurrents. The heat exchangers on the plant side (2) and
on the source side (3) are realized with brazed stainless steel
plates, properly insulated to avoid condensate generation and
to minimize thermal losses, and protected by a flow switch that
detects whatever water flow lack. 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 permit-
ted limits, 4 way reverse cycle valve (6) to allow operating
mode change reversing the refrigerant flow (only for reversible
heat pumps), 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 out-
let pressure, thermostatic expansion valve upstream pressure
and pressure drops accross the filter). All the pipes of the refri-
gerant circuit are properly insulated to avoid condensate
generation and to minimize thermal losses.
Hydraulic circuit. Both the hydraulic circuit on the plant side
and on the source side are equipped with expansion vessel,
air vents and drain valves. All the pipes are thermally insula-
ted to avoid condensate generation and minimize thermal los-
ses. The circuit on the plant side is moreover equipped with
pressure safety valve, pressure gauge and three speed gland-
less pump while the water flow rate on the source side can be
adjusted by means of a three speed glandless pump or by
means of a two way valve.
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 con-
nected. The user interface, placed on the frontal panel of the
unit, allows to view and to modify, if necessary, all the para-
meters of the unit.
All the units are supplied with an outdoor temperature sen-
sor, to be installed outside, in order to realize the climatic con-
trol.
6
3
2
1
4
5
6

7
GENERAL FEATURES
Control system
The microprocessor controller is able to 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 tempe-
rature (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 dome-
stic hot water (3 steps logic)
- solar panels integration
- passive cooling
- room humidity control for cooling with radiant systems
- internal programmer clock (for heating, cooling and dome-
stic 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 standard user interface present on all the units,
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 rea-
lize a more precise and comfortable control.
The unit controller is able to manage a lot of different plant
solutions enabling automatically the necessary control
algorythms according to the components which have been
connected.
Room temperature
20.5 C
18:28
FSFS
FS
The controller is able to 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 realize 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 time table
- 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)

GENERAL FEATURES
Options
Source side
flow rate
management
Pump Allows the circulation of the water on the source side.
2 way valve Modulates the water flow rate on the source side when the water circulation
is assured by an external pump.
Domestic hot water
production
3 way valve Allow to divert the hot water produced by the heat pump from the heating cir-
cuit to the domestic hot water circuit.
3 way valve with
primary heat exchanger
The hot water is diverted by the three way valve on an internal heat exchan-
ger. An internal pump assures a correct domestic hot water flow through the
other side of the heat exchanger.
3 way valve with secon-
dary heat exchanger
(for integrated tank)
The hot water is diverted by the three way valve in a tank integrated in the
unit (accessory). The domestic hot water is generated istantaneously by
means of an internal heat exchanger and a modulating pump.
Passive cooling Allows to use the source to cool down the plant water without activating the
compressor.
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 availa-
ble allow to get, for each model, a lot of different configura-
tions that integrate inside the heat pump many components
of the plant and allow to realize compact and tested installa-
tions.
In order to select the right configuration it is necessary to defi-
ne 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.
FSFS
56
2
1
FSFS
56
2
1
FSFS
56
2
1
FSFS
56
2
1
Not reversible heat pump (IH) without options Reversible heat pump (IP) without options
Option “Source side flow rate management”
Pump 2 way valve
8

9
GENERAL FEATURES
FSFS
56
2
1
4
3
FSFS
56
2
1
4
3
FSFS
FS
56
2
1
4
3
Option “Domestic hot water production”
3 way valve
3 way valve with primary heat exchanger
3 way valve with secondary heat exchanger
4
3
4
3
4
3
In this configuration the heat pump
can be coupled to a domestic hot
water tank equipped with a coil desi-
gned for a maximum water tempera-
ture 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 electri-
cal heaters”) or directly inside the
tank.
In this configuration the heat pump
can be coupled to a domestic hot
water tank without coil.
The anti legionella cycles have to be
performed by means of electrical
heaters placed on the heat pump
outlet (see option “Integrative electri-
cal heaters”) or directly inside the
tank.
In this configuration the heat pump
can produce instantaneously the
domestic hot water using the hot
water stored in the tank integrated in
the unit (see accessory “Domestic
hot water production tank”).
The temperature of the domestic hot
water at the unit outlet is adjusted
modulating the speed of the pump
on the primary side.
The anti legionella cycles are not
necessary.
FSFS
56
2
1
FSFS
56
2
1
Option “Passive cooling” Option “Integrative electrical heaters”

GENERAL FEATURES
Accessories
Remote thermostat 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.
Wireless transmitter Connected to the unit controller, allows to communicate with wireless remote control and wireless outdoor
temperature sensor.
Wireless repeater Extends wireless operating range.
Wireless adaptor for out-
door 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.
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.
Transformer
230V / 24V - 3VA It assures the correct power supply for the condensate sensor and for the room humidity sensor.
Domestic hot water
production tank
Integrated tank, to be installed under the unit, for domestic hot water production. Inside the tank a coil for solar
panels integration is contained.
Pipes for solar panels
connection
Allow to move the connections of the solar integration coil, available on the tank (accessory), directly on the
upper side of the unit.
Refrigerant circuit box If a failure occurs inside the refrigerant circuit, it permits to restart the heat pump very quickly.
10

11
TECHNICAL DATA AND PERFOR ANCES
Technical data
Frame 1
odel 3.1 5.1 7.1 9.1 11.1 U.M.
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 V-ph- z
Refrigerant
Type R410A R410A R410A R410A R410A -
Compressor
Type rotary rotary rotary rotary rotary -
Quantity 1 1 1 1 1 n°
Power steps 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 %
Oil charge 0,35 0,43 0,67 1,13 1,13 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 -
Quantity 1 1 1 1 1 n°
Water volume 0,53 0,53 0,53 0,67 0,84 l
Source side heat exchanger
Type 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 n°
Water volume 0,67 0,67 0,67 0,84 1,04 l
Plant side hydraulic circuit
Safety valve set point 3 3 3 3 3 bar
Expansion vessel volume 10 10 10 10 10 l
Source side hydraulic circuit
Expansion vessel volume 10 10 10 10 10 l
Plant side pump
Type 3 speed
glandless pump
3 speed
glandless pump
3 speed
glandless pump
3 speed
glandless pump
3 speed
glandless pump -
Quantity 1 1 1 1 1 n°
Installed power 0,14 0,14 0,14 0,14 0,14 kW
Source side pump (option)
Type 3 speed
glandless pump
3 speed
glandless pump
3 speed
glandless pump
3 speed
glandless pump
3 speed
glandless pump -
Quantity 1 1 1 1 1 n°
Installed power 0,15 0,15 0,15 0,15 0,15 kW
Domestic hot water tank (accessory)
Volume 120 120 120 120 120 l
Solar coil surface 1,1 1,1 1,1 1,1 1,1 m2
Integrative electrical heaters (option)
Total installed power 9,0 9,0 9,0 9,0 9,0 kW
Power steps 0 - 33 - 66 - 100 0 - 33 - 66 - 100 0 - 33 - 66 - 100 0 - 33 - 66 - 100 0 - 33 - 66 - 100 %

TECHNICAL DATA AND PERFOR ANCES
IH
Heating W10W35 ( source : water in 10°C out 7°C / plant : water in 30°C out 35°C )
eating capacity 3,37 5,11 6,85 9,31 11,8 kW
Power input 0,59 0,90 1,24 1,69 2,18 kW
COP 5,71 5,68 5,52 5,51 5,41 -
Water flow rate plant side 578 874 1171 1591 2023 l/h
Available static head plant side 60 51 41 33 26 kPa
Water flow rate source side 798 1206 1612 2192 2781 l/h
Pressure drops source side 7 14 22 25 26 kPa
Heating B0W35 ( source : brine in 0°C out -3°C / plant : water in 30°C out 35°C )
eating capacity 2,49 3,77 5,06 6,88 8,75 kW
Power input 0,58 0,89 1,22 1,66 2,13 kW
COP 4,29 4,24 4,15 4,14 4,11 -
Water flow rate plant side 427 646 866 1178 1497 l/h
Available static head plant side 63 58 51 46 42 kPa
Water flow rate source side 673 1018 1359 1852 2345 l/h
Pressure drops source side 5 11 17 20 21 kPa
NO INAL performances - low temperature plants
Data declared according to EN 14511. The values are referred to units without options or accessories. Brine = water with 30% ethylene glycol.
IP
Heating W10W35 ( source : water in 10°C out 7°C / plant : water in 30°C out 35°C )
eating capacity 3,30 5,01 6,72 9,13 11,6 kW
Power input 0,58 0,89 1,23 1,67 2,15 kW
COP 5,69 5,63 5,46 5,47 5,40 -
Water flow rate plant side 566 857 1149 1560 1989 l/h
Available static head plant side 60 52 41 34 27 kPa
Water flow rate source side 780 1181 1579 2147 2731 l/h
Pressure drops source side 6 13 21 24 25 kPa
Heating B0W35 ( source : brine in 0°C out -3°C / plant : water in 30°C out 35°C )
eating capacity 2,44 3,70 4,97 6,74 8,60 kW
Power input 0,57 0,88 1,21 1,64 2,11 kW
COP 4,28 4,20 4,11 4,11 4,08 -
Water flow rate plant side 418 634 850 1154 1471 l/h
Available static head plant side 64 58 52 47 43 kPa
Water flow rate source side 658 997 1331 1810 2299 l/h
Pressure drops source side 5 10 17 19 20 kPa
Cooling W30W18 ( source : water in 30°C out 35°C / plant : water in 23°C out 18°C )
Cooling capacity 3,56 5,39 7,21 9,78 12,5 kW
Power input 0,59 0,90 1,24 1,68 2,17 kW
EER 6,03 5,99 5,81 5,82 5,76 -
Water flow rate plant side 611 927 1242 1686 2147 l/h
Available static head plant side 59 49 38 29 22 kPa
Water flow rate source side 710 1077 1443 1959 2498 l/h
Pressure drops source side 5 11 18 21 22 kPa
Cooling B30W18 ( source : brine in 30°C out 35°C / plant : water in 23°C out 18°C )
Cooling capacity 3,48 5,26 7,04 9,56 12,2 kW
Power input 0,60 0,93 1,27 1,73 2,23 kW
EER 5,80 5,66 5,54 5,53 5,47 -
Water flow rate plant side 598 905 1212 1647 2095 l/h
Available static head plant side 59 50 39 31 24 kPa
Water flow rate source side 828 1255 1682 2284 2911 l/h
Pressure drops source side 7 15 24 28 29 kPa
Frame 1
odel 3.1 5.1 7.1 9.1 11.1 U.M.
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 V-ph- z
12

13
TECHNICAL DATA AND PERFOR ANCES
IH
Heating W10W45 ( source : water in 10°C out 7°C / plant : water in 40°C out 45°C )
eating capacity 3,10 4,70 6,30 8,56 10,9 kW
Power input 0,71 1,08 1,48 2,01 2,58 kW
COP 4,37 4,35 4,26 4,26 4,22 -
Water flow rate plant side 529 801 1072 1458 1861 l/h
Available static head plant side 61 54 44 38 31 kPa
Water flow rate source side 686 1038 1384 1884 2401 l/h
Pressure drops source side 5 11 17 20 20 kPa
Heating B0W45 ( source : brine in 0°C out -3°C / plant : water in 40°C out 45°C )
eating capacity 2,29 3,47 4,65 6,32 8,03 kW
Power input 0,70 1,07 1,46 1,98 2,54 kW
COP 3,27 3,24 3,18 3,19 3,16 -
Water flow rate plant side 391 592 792 1077 1369 l/h
Available static head plant side 65 60 54 50 46 kPa
Water flow rate source side 560 849 1127 1535 1944 l/h
Pressure drops source side 4 8 13 15 15 kPa
NO INAL performances - medium temperature plants
IP
Heating W10W45 ( source : water in 10°C out 7°C / plant : water in 40°C out 45°C )
eating capacity 3,04 4,61 6,18 8,39 10,7 kW
Power input 0,70 1,07 1,46 1,98 2,54 kW
COP 4,34 4,31 4,23 4,24 4,21 -
Water flow rate plant side 519 785 1052 1429 1827 l/h
Available static head plant side 62 54 45 39 32 kPa
Water flow rate source side 672 1015 1355 1844 2353 l/h
Pressure drops source side 5 10 16 19 20 kPa
Heating B0W45 ( source : brine in 0°C out -3°C / plant : water in 40°C out 45°C )
eating capacity 2,24 3,40 4,57 6,20 7,90 kW
Power input 0,69 1,06 1,44 1,95 2,51 kW
COP 3,25 3,21 3,17 3,18 3,15 -
Water flow rate plant side 382 581 779 1057 1347 l/h
Available static head plant side 65 60 54 50 46 kPa
Water flow rate source side 546 828 1106 1504 1909 l/h
Pressure drops source side 3 8 12 14 15 kPa
Cooling W30W7 ( source : water in 30°C out 35°C / plant : water in 12°C out 7°C )
Cooling capacity 2,74 4,14 5,55 7,53 9,61 kW
Power input 0,59 0,91 1,24 1,68 2,16 kW
EER 4,64 4,55 4,48 4,48 4,45 -
Water flow rate plant side 470 712 954 1296 1652 l/h
Available static head plant side 62 56 48 43 37 kPa
Water flow rate source side 571 866 1161 1575 2013 l/h
Pressure drops source side 3 8 13 14 15 kPa
Cooling B30W7 ( source : brine in 30°C out 35°C / plant : water in 12°C out 7°C )
Cooling capacity 2,69 4,07 5,44 7,38 9,42 kW
Power input 0,60 0,93 1,26 1,72 2,22 kW
EER 4,48 4,38 4,32 4,29 4,24 -
Water flow rate plant side 462 698 935 1270 1620 l/h
Available static head plant side 62 56 49 43 38 kPa
Water flow rate source side 669 1015 1359 1845 2358 l/h
Pressure drops source side 5 11 17 20 21 kPa
Frame 1
odel 3.1 5.1 7.1 9.1 11.1 U.M.
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 V-ph- z
Data declared according to EN 14511. The values are referred to units without options or accessories. Brine = water with 30% ethylene glycol.

The graphs allow to get the corrective factors to be applied to
the nominal performances in order to obtain the real perfor-
mances in the selected operating conditions.
The reference nominal conditions are :
- water-water units : W10W35 (source : water in 10°C out 7°C
/ plant : water in 30°C out 35°C)
- brine-water units : B0W35 (source : water in 0°C out -3°C /
plant : water in 30°C out 35°C)
TECHNICAL DATA AND PERFOR ANCES
HEATING performances
Outlet temperature
plant side :
A = 55°C
B = 45°C
C = 35°C
D = 25°C
0,4
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
-10 -5 0 5 10 15 20 25
eating capacity ( brine )
Inlet temperature - source side [°C]
0,4
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
-10 -5 0 5 10 15 20 25
Power input ( brine and water )
Inlet temperature - source side [°C]
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
2,2
2,4
2,6
2,8
3,0
-10 -5 0 5 10 15 20 25
COP ( brine )
Inlet temperature - source side [°C]
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
-10 -5 0 5 10 15 20 25
eating capacity (water )
Inlet temperature - source side [°C]
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
2,2
2,4
2,6
2,8
3,0
-10 -5 0 5 10 15 20 25
COP ( water )
Inlet temperature - source side [°C]
B
C
A
D
B
C
A
D
C
B
D
A
C
B
D
A
CB DA
14

15
TECHNICAL DATA AND PERFOR ANCES
COOLING performances
0,4
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
-10 -5 0 5 10 15 20 25 30 35 40 45
Cooling capacity ( brine and water )
Inlet temperature - source side [°C]
0,4
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
-10 -5 0 5 10 15 20 25 30 35 40 45
Power input ( brine and water )
Inlet temperature - source side [°C]
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
2,2
2,4
2,6
2,8
3,0
-10 -5 0 5 10 15 20 25 30 35 40 45
EER ( brine and water )
Inlet temperature - source side [°C]
The graphs allow to get the corrective factors to be applied to
the nominal performances in order to obtain the real perfor-
mances in the selected operating conditions.
The reference nominal conditions are :
- water-water units : W30W7 (source : water in 30°C out 35°C
/ plant : water in 12°C out 7°C)
- brine-water units : B30W7 (source : brine in 30°C out 35°C
/ plant : water in 12°C out 7°C)
Outlet temperature
plant side :
A = 24°C
B = 18°C
C = 12°C
D = 7°C
C
B
D
A
B
C
A
D
B
C
A
D
The performances of the units, when used as brine - water, are referred to applications in which the source side fluid is a solu-
tion of water and 30% ethylene glycol by volume.
Such a concentration guarantees a freezing temperature of about -15°C and allows the unit to work inside the declared opera-
ting limits.

TECHNICAL DATA AND PERFOR ANCES
Plant side hydraulic performances
0
10
20
30
40
50
60
70
80
0 500 1000 1500 2000 2500 3000 3500
Flow rate [ l/h ]
3.1
7.1
9.1
5.1
11.1
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Available static head - unit without options
0
5
10
15
20
25
30
35
40
0 500 1000 1500 2000 2500 3000 3500
Flow rate [ l/h ]
A
C
B
A = unit with option “Domestic hot water production” : “3 way valve”
B = unit with option “Integrative electrical heaters”
C = unit with option “Passive cooling”
Pressure drops
16
Available static head [ kPa ]
Pressure drops [ kPa ]

17
0
5
10
15
20
25
30
35
40
0 500 1000 1500 2000 2500 3000 3500
TECHNICAL DATA AND PERFOR ANCES
Source side hydraulic performances
Flow rate [ l/h ]
Pressure drops [ kPa ]
7.1
9.1
5.1
11.1
3.1
0
10
20
30
40
50
60
70
80
0 500 1000 1500 2000 2500 3000 3500
Flow rate [ l/h ]
Available static head [ kPa ]
7.1
9.1
5.1
11.1
3.1
Pressure drops - unit without options
Available static head - unit with option “Source side flow rate management” : “Pump”
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).

TECHNICAL DATA AND PERFOR ANCES
Domestic hot water side hydraulic performances
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
0
10
20
30
40
50
60
70
80
0 500 1000 1500 2000 2500 3000 3500
Flow rate [ l/h ]
A
B
A = unit with option “Domestic hot water production” : “3 way valve”
B = unit with option “Domestic hot water production” : “3 way valve with primary heat exchanger”
Available static head
0
5
10
15
20
25
30
35
40
0 500 1000 1500 2000 2500 3000 3500
Flow rate [ l/h ]
Pressure drops - unit with option “Passive cooling”
3.1
7.1
9.1
5.1
11.1
18
Pressure drops [ kPa ]Available static head [ kPa ]

19
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
-15 -10 -5 0 5 10 15 20 25 30 35 40 45 50
TECHNICAL DATA AND PERFOR ANCES
The graphs reported below show the operating area inside which the correct working of the unit is guaranteed. The dotted lines
show the operating area when brine solutions in the source side hydraulic circuit are used.
HEATING
Inlet temperature - source side [°C]
Outlet temperature - plant side [°C]
Operating limits
-5
0
5
10
15
20
25
30
35
40
45
-15 -10 -5 0 5 10 15 20 25 30 35 40 45 50
COOLING
Inlet temperature - source side [°C]
Outlet temperature - plant side [°C]
Temperature difference between unit inlet and outlet Plant side Source side
∆T max Maximum value 11 5 °C
∆T min Minimum value 3 1 °C
Passive
cooling

TECHNICAL DATA AND PERFOR ANCES
Electrical data
Unit
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 V-ph- z
F.L.A. Maximum total current input 5,9 7,7 10,1 13,3 17,0 A
F.L.I. Maximum total power input 1,3 1,7 2,2 2,9 3,7 kW
M.I.C.
Maximum total start current 36 45 52 82 112 A
Maximum total start current
with soft starter (option) 32 35 38 41 43 A
Integrative electrical heaters
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50
V-ph- z
400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50 400 - 3N - 50
F.L.A.
Maximum total current input
( 230V - 1 - 50 z ) 39,1 39,1 39,1 39,1 39,1 A
Maximum total current input
( 400V - 3N - 50 z ) 13,0 13,0 13,0 13,0 13,0 A
F.L.I. Maximum total power input 9,0 9,0 9,0 9,0 9,0 kW
Source side pump (option)
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 V-ph- z
F.L.A. Maximum total current input 0,8 0,8 0,8 0,8 0,8 A
F.L.I. Maximum total power input 0,15 0,15 0,15 0,15 0,15 kW
Domestic hot water production pump (with option “3 way valve with primary heat exchanger”)
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 V-ph- z
F.L.A. Maximum total current input 0,4 0,4 0,4 0,4 0,4 A
F.L.I. Maximum total power input 0,08 0,08 0,08 0,08 0,08 kW
Domestic hot water production pump (with option “3 way valve with secondary heat exchanger”)
Power supply 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 230 - 1 - 50 V-ph- z
F.L.A. Maximum total current input 0,7 0,7 0,7 0,7 0,7 A
F.L.I. Maximum total power input 0,14 0,14 0,14 0,14 0,14 kW
Noise levels
odel
Sound power levels [dB]
by octave bands [Hz]
Sound power
level
Sound pressure
level at 1 m
63 125 250 500 1000 2000 4000 8000 [dB] [dB(A)] [dB(A)]
3.1 73,2 63,3 48,3 31,7 31,0 22,6 20,9 21,9 74 51 36
5.1 74,2 64,3 49,3 32,7 32,0 23,6 21,9 22,9 75 52 37
7.1 74,2 64,3 49,3 32,7 32,0 23,6 21,9 22,9 75 52 37
9.1 75,2 65,3 50,3 33,7 33,0 24,6 22,9 23,9 76 53 38
11.1 75,2 65,3 50,3 33,7 33,0 24,6 22,9 23,9 76 53 38
Reference conditions
Performances referred to units operating in heating mode at nominal conditions W10W35.
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 meter from the external surface of the unit.
Frame 1
odel 3.1 5.1 7.1 9.1 11.1 U.M.
20