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Electric connection.
The board is composed of three relays (relay 1
= K1; relay 2 = K2 and relay 3 = K3). The relays
can be configured.
N.B.: for the configuration of the functioning op-
tions, refer to the P.C.B. programming paragraph
in the boiler instruction book.
Wiring diagram with 2 zones.
The control unit is set up for the direct man-
agement of a maximum of 2 zones, which is
carried out with relay 1 and 2. Relay 1 must be
configured as the "Main area control", whereas
relay 2 must be configured as the "Secondary
RELAYS K1, K2
RELAYS K1, K2
and K3 CAN BE
and K3 CAN BE
CONFIGURED
CONFIGURED
230 Vac 50
230 Vac 50
Hz power
Hz power
supply
supply
INTEGRATED P.C.B.
INTEGRATED P.C.B.
Fig. 4-2
Relay board technical data.
Power supply voltage: ............................................................................................................. 230VAC 50Hz
contact K1 max capacity: ..........................................................................................230VAC 1.00A cosφ 1
contact K2 max capacity: ..........................................................................................230VAC 0.75A cosφ 1
contact K3 max capacity: ..........................................................................................230VAC 0.75A cosφ 1
Relay K2 enabling contact (X25) SELV 24VDC 10mA (low voltage in safe conditions)
Attention: do not exceed the maximum load allowed by the fuses on the mother board (it is added to
the boiler load) (3.15A fuse).
area control". Relay 3 can be used for one of the
functions indicated in the previous relative table.
The
Comando Amico Remoto remote control
V2
must be set with On/Off operation to control
zone 1, while the room thermostat controls
zone 2.
RELAY BOARD
RELAY BOARD
Very low
Very low
safety
safety
voltage
voltage
CAR v2 must be connected to
CAR v2 must be connected to
terminals 41 and 44 complying
terminals 41 and 44 complying
with the polarity and elimina-
with the polarity and elimina-
ting jumper X40.
ting jumper X40.
Secondary zone
Secondary zone
51
THE CAR v2 MUST BE SET
THE CAR v2 MUST BE SET
WITH ON/OFF OPERATION
WITH ON/OFF OPERATION
Secondary zone
Secondary zone
room thermostat
room thermostat
Main area valve
Main area valve
valve
valve
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