6
VERSIONS
Alongside the basic version of the unit, there are the fol
-
lowing versions
OH: non-reversible heat pump
This is a heat pump for heating only. Compared to the ba
-
sic version, both user-side and source-side heat exchang
-
ers are insulated.
HPW: reversible heat pump on water side.
This reversible heat pump is suitable for applications in
which the user-side circuit and the source-side circuit can
be exchanged with each other. Therefore, the fitter must
make provision for a system of valves that will allow ex
-
change of the two hydraulic circuits. If the seasonal mode
change is carried out via remote signal or BMS, the unit
can control motor-driven reversing valves (not supplied)
so as to make this operation fully automatic.
Compared to the basic version, both user-side and source-
side heat exchangers are insulated.
OPTIONS
/LN: low noise version
The unit includes a soundproofing compartment on the
compressor consisting of a rigid outer cowling made of
galvanised and painted sheet metal (RAL 7035), lined with
sound absorbing matting with high acoustic impedance
material in between.
/XLN: super low noise version
The unit includes:
•
soundproofing compartment on the compressor con
-
sisting of a rigid outer cowling made of galvanised and
painted sheet metal (RAL 7035), lined with sound ab
-
sorbing matting with high acoustic impedance material
in between.
•
Cover jacket on the compressor made of: 50 mm
noise-absorbing material made with self-extinguish
-
ing polyester fibre on the compressor side - density
30 Kg/m³ -, soundproof rubber sheet - density 6 Kg/
m³ -, placed in-between the polyester layers, and an
additional layer of noise-absorbing material made with
self-extinguishing polyester fibre on the sheath side -
density 30 kg/m³. Total thickness 70 mm
/DC: unit with total recovery condenser
In addition to the basic version, the following elements are
included in the chiller unit only:
•
a recovery section of condensation heat (100%), fea
-
tured inside the condenser;
• a temperature probe at the inlet of the heat recovery
heat exchanger
• potential free contact in the electrical control panel for
activation of heat recovery. When required by the sys-
tem, through the closing of a contact, the controller au
-
tomatically manages activation of heat recovery. Heat
recovery management is carried out through a control
on the temperature of the return water. The controller
also automatically manages safety deactivation of heat
recovery, if the condensing pressure becomes too high,
and switches to using the source-side heat exchanger.
