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2.2
Electrical connections
The electrical connections, to be made by an authorised company
or by professionally qualified personnel
diagram below.
BROWN
L
N
BLUE
PMI
CN11
BLUE
1 = COM 2
2 = NC 2
3 = NO 2
1 = COM 1
SC1
2 = NC 1
3 = NO 1
Live
L
Neutral
N
System delivery sensor
SMI
SE
External sensor
Room thermostat
TA
Safety thermostat (low-pressure system)
TSbt
Connections to be made to the BOILER:
– TA (Room thermostat)
– SE (External sensor)
– SMI (System delivery sensor)
– PMI (System delivery pump)
NOTE:
if a boiler with modulating pump is used, the return sensor
from the boiler's terminal board (terminals 1-2) must be
disconnected and the SMI sensor of the HYBRID KIT must be
connected to it.
, are summarised in the
CN12
CN13
CN14
F
SC2
TRA
7 6 5 4 3 2 1
Before carrying out the operations described below:
– Set the system's main switch to "OFF".
– Close the gas valve.
GREEN
GREEN
BLUE
BLUE
BLACK
BLACK
CN15
CN3
CN5
CN6
CF
System delivery pump
PMI
Heat Pump
PDC
Two-relay board
SC1
SC2
Boiler board
Flat cable
CF
To connect the "TA" remove the jumper between
terminals 5 and 6.
Connections to be made to the Heat Pump:
– SC1 (Two-relay board)
a
ATTENTION
Attach the warning label, included with the supply, on the
boiler in a clearly visible position.
SMI
1
2
3
SE
4
5
6
TSbt
TA
PDC
(INLET
ON/OFF REMOTE)
- PDC SHP ECO EV
(Terminals 15.1 - 15.2)
- PDC SHP M PRO
(Terminals HT - COM (CN31))
Fig. 7
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