Electric Connection - Immergas 3.015350 Instructions And Warnings

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 model of the boiler.
Therefore, different functions can be obtained
depending on the connection (see boiler instruc-
tion booklet).
N.B.: for the configuration of the functioning op-
tions, 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 manage-
ment of a maximum of 2 zones, which is carried
out with relay 1 and 2. Relay 1 must be config-
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).
ured 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 func-
tions indicated in the boiler instruction booklet.
RELAY BOARD RELAY BOARD
RELAYS K1, K2 RELAYS K1, K2
and K3 CAN BE and K3 CAN BE
CONFIGURED CONFIGURED
The Comando Amico Remoto remote control
must be set with On/Off functioning and con-
trol zone 1, while the room thermostat controls
zone 2.
36
Zone 2 room Zone 2 room
thermostat thermostat
Zone 2 Zone 2 Zone 1 Zone 1
valve valve valve valve
REMOTE REMOTE
CONTROL CONTROL