33
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7 - General Description (continued)
Additional heating device kit
It is provided as an option/accessory to allow the unit managing the
control of an additional heating device (a boiler in example), in order
to integrate the production of hot water.
Connect the additional heating device to terminal 33-8 of the
electrical box (refer to Chapt. 4).
Climatic control kit
It is provided as an accessory to allow the unit managing the control
of water temperature, according outdoor air temperature. Connect
outdoor air temperature probe terminals to terminal AIE5 - GND on
the electrical box (refer to Chapt. 4).
Antivibrating supports (AVM)
Isolating spring suppor ts, equipped with bolts for fastening to
the base. They are supplied separated from the unit and must be
mounted on site by the customer, at his own expense.
Remote wall terminal
Makes it possible to check the unit through a remote terminal, up to a
maximum distance of 100 meters.
RS-485 protocol Modbus
A communication interface makes it possible to control and manage
the unit from a local station, with RS485 connection.
It is possible to obtain the remote control and the management, by
inserting the control into the management plant of the building.
Pressostatic Valve Kit (20-45 units)
This item is available only for cooling only units. The pressostatic
valve, controlled by condensing pressure, regulates the water flow
to maintain the condensing temperature at the desired value (the
condensing temperature of +40 °C is recommended).
Condensing control kit
It is provided as an option/accessory to allow the unit managing
the control of condensation, in case very cold water (from a well in
example) is entering the condenser . A 0-10V signal (terminal 2-3 of
the electrical box / refer to Chapt. 4) is available to manage a variable
flow device (in example 2/3 ways modulating valve, inverter pump).
SOURCE
BOILER
WATER
PROBE
DHW
DCW
3 WAYS
VALVE
DISCHARGE
LINE
PLANT
0-10V
INV
2/3
H
H
NORD
YES
NO
WATER COMPENSATION RULE - HEATING MODE
OA
T [°C]
55
50
45
40
35
30
25
-20
-15
-10
-5
0
5
10
15
20
25
LW
T [°C]
WATER COMPENSATION RULE - COOLING MODE
OAT [°C]
17
15
13
11
9
7
5
3
1
10
15
20
25
30
35
40
45
LW
T [°C]
