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Wiring diagram needed for a 3 pump central heating system
Relays of course! Thanks for the quick reply, much appreciated. Any recomendations on relays, I can only find the Drayton RB-1 which is very expensive and out of stock!- Mal67
- Post #3
- Forum: Plumbing and Central Heating
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Wiring diagram needed for a 3 pump central heating system
Hi I have been given the task of sorting out someone elses bodge job. Big house with an oil boiler 2 CH zones and one HW 3 Zone valves (Drayton ZA6) 1 pump (that is not up to the job) Horstmann programmer The idea is to have one pump per zone which is what was originaly specified...- Mal67
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- Replies: 12
- Forum: Plumbing and Central Heating
