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WIRING DIAGRAM WITH 2 ZONES.
The control unit is set up for the direct management of a maxi-
mum of 2 zones, which is carried out with relay 1 and 2. Relay
1 must be configured as the "Main zone control", whereas relay
2 must be configured as the "Secondary zone control". Relay
3 can be used for one of the functions indicated in the boiler
RELAY BOARD
RELAY BOARD
230V Connection terminal board
230V Connection terminal board
230 Vac 50
230 Vac 50
Hz power
Hz power
supply
supply
Fig. 1-3
WIRING DIAGRAM WITH SEVERAL ZONES.
Using the K1 relay as the ''Main zone control'' and contacts 40
and 41 on the boiler for additional room thermostats, it is pos-
sible to connect several zones according to requirements. The
Comando Amico Remoto remote control always controls the
V2
main zone (zone 1), whereas the relative zone valve is always and
only managed by the K1 relay. Relays 2 and 3 can be used for
RELAY BOARD
RELAY BOARD
230V Connection terminal board
230V Connection terminal board
230 Vac 50
230 Vac 50
Hz power
Hz power
supply
supply
Fig. 1-4
INTEGRATED P.C.B.
INTEGRATED P.C.B.
Very low
Very low
safety
safety
voltage
voltage
RELAYS K1, K2
RELAYS K1, K2
and K3 CAN BE
and K3 CAN BE
CONFIGURED
CONFIGURED
Low voltage connection terminal board
Low voltage connection terminal board
INTEGRATED P.C.B.
INTEGRATED P.C.B.
Very low
Very low
safety
safety
voltage
voltage
RELAYS K1, K2
RELAYS K1, K2
and K3 CAN BE
and K3 CAN BE
CONFIGURED
CONFIGURED
Low voltage connection terminal board
Low voltage connection terminal board
34
instruction booklet.
The CAR
must be connected to terminals 41 and 44 complying
V2
with the polarity and eliminating the X40 jumper. Moreover, it
must be set with On/Off operation and must control zone 1,
while the room thermostat controls zone 2.
Zone 2 room
Zone 2 room
thermostat
thermostat
Zone 2 valve
Zone 2 valve
one of the functions indicated in the boiler instruction booklet.
The CAR
must be connected to terminals 41 and 44 complying
V2
with the polarity and eliminating the X40 jumper. Moreover, it
must be set with On/Off operation, while the room thermostats
require zone valves with end run contact The contact must be
closed with valve open hydraulically.
Zone 1 valve
Zone 1 valve
Line
Line
Neutral
Neutral
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