Immergas 3.015350 Instructions And Warnings page 47

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 appliance instruction book.
Wiring diagram with active system pha-
se and generic alarm.
The unit is set up for the management of any
external pump; the pump is powered in conco-
mitance with the request phase on the system.
All the relays can be configured as an active
system phase; the diagram represents the connec-
Fig. 5-2
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).
tion on relay 2. In the event this relay is used, it
is necessary to jump pins 57 and 58 of connector
X25 positioned on the relay board.
In addition, the possible connection to relay 1
and relay 3 is represented.
The device is set up for the management of any
generic alarms.
47
All the relays can also be configured as generic
alarm. The ''generic alarm'' signal is enabled
whenever one of the envisioned anomalies
occurs in the device (see device book under
''Troubleshooting'').
Legenda:
A3 - Integrated P.C.B.
A7 - Three relay board
K1 - Configurable relay
K2 - Configurable relay
K3 - Configurable relay
M10-1 - Zone 1 pump