25
23
1
2
3
4
BR BL
Y/G
5
INS
TALLER
US
ER
MAINTEN
AN
CE
TECHNI
CI
AN
TECHNI
CAL
D
AT
A
3.6 DIM ERP CONNECTION TO BOILER VIA ZONE
SIGNAL STATE.
Eliminate jumper X40 on the boiler terminal board (see boiler instruction booklet).
On boiler models preset for communication with the zones control unit via a signal state, the Zones control unit can be connected
to boiler terminals 40, 41 and 21.
The Zones control unit will receive the following from the boiler:
- Enabling zone mode (Summer, Winter mode, etc.);
- Zone activation request from external devices connected to the boiler.
The boiler will receive the following from the Zones control unit:
- Central heating request from zones.
The Zones control unit must be connected to its own external probe (if necessary).
The mixed zone flow temperature must be adjusted on the zones control unit trimmers.
IMMERGAS MODELS WITH ZONE SIGNAL STATE OUTLET
N.B.:
in this connection mode, when the boiler must be discon-
nected from the supply voltage, it is also necessary to power off
the manifold.
Key:
1 - Zones control unit
2 - Boiler terminal board
3 - External probe (optional)
4 - External probe (optional)
5 - Power supply 230Vac 50Hz
BR - Brown
BL - Blue
Y/G - Yellow/Green
