I’m trying to get my head around how the controls work on heat pump systems .
Usually on a s plan combi boiler let’s just say 2 zones I’ve learned that power to spur from spur to Timeclock to stat calls for heat switch live from stat on to brown on the motorised valve micro switch closes between (grey permanent live ) and orange joined to switch wire to boiler okay so I understand that.
With the heat pump no (Timeclock being used) 1.5 to spur to stat - switch live from each stat to brown on each motorised valve
The 2 oranges joined together and the (2 greys joined together not permanent feed)
Oranges together with one core to the heat pump and greys joined together to the heat pump
My question is if there’s no permanent feed on the grey when the valve micro switch operates how does this fire up the heat pump .
Continue reading...
Usually on a s plan combi boiler let’s just say 2 zones I’ve learned that power to spur from spur to Timeclock to stat calls for heat switch live from stat on to brown on the motorised valve micro switch closes between (grey permanent live ) and orange joined to switch wire to boiler okay so I understand that.
With the heat pump no (Timeclock being used) 1.5 to spur to stat - switch live from each stat to brown on each motorised valve
The 2 oranges joined together and the (2 greys joined together not permanent feed)
Oranges together with one core to the heat pump and greys joined together to the heat pump
My question is if there’s no permanent feed on the grey when the valve micro switch operates how does this fire up the heat pump .
Continue reading...
