P
Phillay
Hi guys, need some advice.
Have a condensate pump to wire up. The pump has a safety switch cable (1 blue, 1 brown wire) that is to be wired into the 'permanent live' to a combi boiler. Therefore, if pump failure occurs, the combi will be shut down (as it condenses in both H and DHW).
The cable size of the safety switch is 0.5mm... but the boiler manufacturers have specifically stated the power to the boiler must by wired from the 3 amp fuse in 0.75mm and it's not acceptable to drop to 0.5mm to incorporate the switch.
Can't upgrade the safety switch cable and so the boiler manufactures have suggested I could use a relay to supply the boiler and the condense safety switch cuts the relay if pump failure occurs (this will mean the boiler is still continuously fed by 0.75mm).
Been putting this off for a while as I haven't got a clue as to what type of relay to use and how this would be wired up.
Cheers.
Have a condensate pump to wire up. The pump has a safety switch cable (1 blue, 1 brown wire) that is to be wired into the 'permanent live' to a combi boiler. Therefore, if pump failure occurs, the combi will be shut down (as it condenses in both H and DHW).
The cable size of the safety switch is 0.5mm... but the boiler manufacturers have specifically stated the power to the boiler must by wired from the 3 amp fuse in 0.75mm and it's not acceptable to drop to 0.5mm to incorporate the switch.
Can't upgrade the safety switch cable and so the boiler manufactures have suggested I could use a relay to supply the boiler and the condense safety switch cuts the relay if pump failure occurs (this will mean the boiler is still continuously fed by 0.75mm).
Been putting this off for a while as I haven't got a clue as to what type of relay to use and how this would be wired up.
Cheers.