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3.2
Electrical connections
The electrical connections, to be made by an authorised company
or by professionally qualified personnel
diagram below.
m
WARNING
For the electrical connections of the Diesel Heating
Units, DO NOT use the 2 Relay board supplied with
the Hybrid Kit.
Thermal unit - AQUA
TA
Thermal unit - SOLO
TA
3
4
5
6
7
Thermal unit - DUETTO
TA
13
14
15
16
17
18
System delivery sensor
T1
System delivery pump
PMI
CR
Remot control
Connections to be made to the Heat Pump:
– TA (Room thermostat)
– T1 (System delivery sensor)
– PMI (System delivery pump)
, are summarised in the
1
2
3
4
13
14
15
CN11
CN5
CN21
CN32
1
2
CN29
3
4
13
14
15
CN11
CN42
CN22
1
2
13
14
1
2
3
4
13
14
15
CN11
Before carrying out the operations described below:
– Set the system's main switch to "OFF".
– Close the gas valve.
a
ATTENTION
Attach the warning label, included with the supply, on the
boiler in a clearly visible position.
Heat pump SHP M PRO
CN28
CN25
S1
S2
CN33
S3
CN4
10
10
3
4
5
6
7
8
9
11
21
15
16
17
18
19
20
22
23
21
CN11
SMI
PMI
Kit Hybrid
a
WARNING
DO NOT use the system delivery sensor (SMI) sup-
plied with the Hybrid Kit; use the one supplied with
the Heat Pump.
CN6
CN8
CN24
CN23
CN13
CN37
CN15
CN38
CN18
CN64
CN27
SW9
CN17
3
4
12
1
2
3
4
5
24
6
7
8
9
10
CN30
Input voltage (HA/HB) = 18 VDC
(cable max. L = 50 m, cross-sectional
size = 0.75 mm² shielded and
braided with 2 wires)
T1
CR
Fig. 15
33
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