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3.5 DIM ERP CONNECTION TO BOILER VIA DIM BUS.
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
instruction booklet).
Eliminate jumper X40 on the boiler terminal board (see boiler instruction booklet).
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 ZONE CONTROL UNIT.
Key:
1 - Zones control unit
2 - DIM BUS connection to boiler