Immergas 3.015350 Instructions And Warnings page 37

Wiring diagram with several zones.
Using the K1 relay as the ''Main zone control''
and contacts 40 and 41 on the boiler for addi-
tional room thermostats, it is possible to connect
several zones according to requirements. The
Comando Amico Remoto remote control always
Brown Brown
Blue Blue
INTEGRATED P.C.B. INTEGRATED P.C.B.
Fig. 2-3
Wiring diagram with heating phase
active.
The boiler is set up for the management of any
external pump, the pump is powered in concom-
itance with the heating request phase.
All the relays can be configured as an active
Brown Brown
Blue Blue
Fig. 2-4
controls the main zone (zone 1), whereas the
relative zone valve is always and only managed
by the K1 relay. Relays 2 and 3 can be used for
one of the functions indicated in the boiler in-
struction booklet.
The Comando Amico Remoto remote control
central heating phase. The diagram represents
the connection 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.
RELAY BOARD RELAY BOARD
INTEGRATED P.C.B. INTEGRATED P.C.B.
must be set with On/Off operation, while the
room thermostats require zone valves with end
run contact. The contact must be closed with
valve open hydraulically.
37
Line Line
Neutral Neutral