Ferroli KSR Installation And Operation Manual - page 5
5
IP 7 .1 VB AB 0 M 1
GENERAL FEATURES
Unit description
This series of air-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 splitted installation (indoor unit and
outdoor unit connected through refrigerant pipes) and can be
applied to fan coil plants, radiant floor plants and high efficiency
radiators 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 do-
mestic hot water management. The possibility of solar panels or
other heating sources integration is also available.
The heating function optimizes the flow water temperature ac-
cording both to the ambient temperature and to the outdoor tem-
perature through climatic curves adaptable to the building featu-
res. 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 ne-
cessary).
The cooling function can be realized through “active cooling” (re-
frigerant 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 heat pump is composed by an indoor unit (motocondensing
unit) containing the hydraulic circuit, the electrical board, the
compressor and a part of the refrigerant circuit and an outdoor
unit (remote evaporator).
The refrigerant circuit, contained in an extractable box to simplify
the maintenance operations, is equipped with rotary compres-
sor mounted on damper supports, brazed plate heat exchanger,
thermostatic expansion valve and reverse cycle valve and liquid
receiver.
The circuit is protected by high and low pressure switches and
flow switches on the plate heat exchanger.
The plate heat exchanger and all the hydraulic pipes are ther-
mally insulated to avoid condensate generation and to reduce
thermal losses.
The outdoor structure of the indoor unit and the refrigerant cir-
cuit box are both thermally and acoustically insulated in order to
create a double wall against sound propagation and to allow the
installation in domestic places.
To avoid vibration propagation towards the hydraulic circuit the
refrigerant circuit box is placed on damper supports and the con-
nection pipes are flexible.
The outdoor unit is composed by finned coil made of copper
pipes and aluminium louvered fins and axial fan with safety pro-
tection grilles. The fan, supplied with DC motor and electronic ro-
tational speed control, guarantees high efficiency and low noise
in all the operating conditions.
All the units are supplied 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, hydraulic and refrigerant (between indoor
and outdoor units) connections are required for installation.
Unit identification code
The codes that identify the units and the meaning of the letters used are described below.
Unit type
IP - Units suitable for hydronic plant
installation operating as reversible heat
pumps
Power supply
1 - 230V - 1 - 50 Hz
Operating range
M - Medium temperature.
The unit is suitable to produce
water at medium temperature
Refrigerant type
0
- R410A
Acoustic setting up
AB - Base setting up
AS - Low noise setting up
Unit version
VB - Base version
N° compressors
Unit model
KSR