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 Hz
5
- 400V - 3N - 50 Hz
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 M 1
Operating range
M
- Medium temperature.
The unit is suitable to pro-
duce water at medium tem-
perature
AB
- Base setting up
Acoustic setting up
Summary of Contents for HSW 11.1
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