Immergas V2 Instructions And Warnings page 38

2.5 CONNECTING THE ZONES CONTROL UNIT TO A BOILER VIA DIM BUS
On boiler models set up for digital communication with the zone control unit, the BUS dialogue can be activated with a wide exchange
of interactions between boiler and Zones control unit, the main ones being:
The Zones control unit will receive the following from the boiler:
- Enabling zone mode (Summer, Winter mode, etc.)
- Temperatures regulated on the boiler display for Low Temperature zones (where possible);
- External temperature probe connected to boiler;
- Zone activation request from external devices connected to the boiler (CAR, Wireless probes, etc.)
The boiler will receive the following from the Zones control unit:
- Central heating request from zones;
- Boiler flow temperature correlated to the zones request.
- Error codes of the faults present on the zone control unit.
ONLY FOR BOILERS SET-UP FOR DIGITAL COMMUNICATION WITH ZONES CONTROL UNIT
Key:
1 - Zones control unit
2 - DIM BUS connection to boiler
If the boiler requires it, the BUS connection can be made to the terminals indicated as DIM BUS or 44-41, or 40-41 (see boiler instruc-
tion booklet).
Eliminate jumper X40 on the boiler terminal board (see boiler instruction booklet).
38
1
2
11