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ELECTRIC CONNECTION.
The board consists of three relays (relay 1 = K1; relay 2 = K2 and
relay 3 = K3). The relays can be configured according to the mod-
el of the boiler. Therefore, different functions can be obtained
depending on the connection (see boiler instruction booklet).
N.B.: for the configuration of the functioning options, refer to the
P.C.B. programming paragraph in the boiler instruction book.
Attention, in case connector X11 is engaged, proceed as follows:
Disconnect connector "X11" on the boiler board, and replace it
with the relay board connecting it as described in the following
diagrams. Then, reconnect the free connector to connector "X20"
of the relay board.
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
instruction booklet.
RELAY BOARD
RELAY BOARD
Brown
Brown
Blue
Blue
INTEGRATED P.C.B.
INTEGRATED P.C.B.
Fig. 2-2
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).
The Comando Amico Remoto remote control must be set with
On/Off functioning and control zone 1, while the room ther-
mostat controls zone 2.
RELAYS K1, K2
RELAYS K1, K2
and K3 CAN BE
and K3 CAN BE
CONFIGURED
CONFIGURED
38
Zone 2 room
Zone 2 room
thermostat
thermostat
Zone 2
Zone 2
valve
valve
Zone 1
Zone 1
valve
valve
REMOTE
REMOTE
CONTROL
CONTROL
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