Immergas 3.015350 User Manual page 42

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 options, 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 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".
The Comando Amico Remoto remote control must be set with
V2
On/Off operation and control zone 1, while the room thermostat
controls zone 2.
RELAY BOARD RELAY BOARD
Brown Brown
Blue Blue
Brown Brown
Blue Blue
Fig. 3-2
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).
Models with Aquaceleris: remove the P.C.B. to a relay discon-
necting connector X5 from the integrated P.C.B. Then, set relay
3 as "Aquaceleris PTC Supply Voltage" and connect resistance
"E11" as indicated.
RELAYS K1, K2 RELAYS K1, K2
and K3 CAN BE and K3 CAN BE
CONFIGURED CONFIGURED
INTEGRATED P.C.B. INTEGRATED P.C.B.
42
Zone 2 room Zone 2 room
thermostat thermostat
Zone 2 Zone 2
valve valve
Zone 1 Zone 1
valve valve