Рет қаралды 58,322
Richard goes through how to wire a Honeywell BDR91 Wireless Relay Box as a Boiler Demand Relay.
You can use the same principle to wire to motorised zone valves (B terminal to brown wire of motorised zone valve will provide a 230 volt switched live to the valve).
If you need a new Honeywell BDR91 Wireless Relay Box, we sell these on MWPHS.co.uk - mwphs.co.uk/pr...
**PLEASE NOTE** There is serious danger of injury with any 230 volt electrical product. If you do not know what you are doing, please contact a suitably competent person.