Immergas 3.015350 Instructions And Warnings page 48

Wiring diagram with puffer mode active.
The device is set up for the management of any
pre-heated puffer.
During a request for heating, in case the heating
probe detects a temperature higher than the
one requested, the system circulating pump is
activated while the generator is kept off.
Fig. 5-3
All the relays can be configured as an active
system phase; the diagram represents the connec-
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.
48
Legenda:
A3 - Integrated P.C.B.
A7 - Three relay board
B13 - Heating probe
K1 - Configurable relay
K2 - Configurable relay
K3 - Configurable relay
M10 - Buffer pump
M10-1 - Zone 1 pump