I have a Potterton Prima b balanced flue pumped system with a British gas program timer emp2, I wish to fit a wired frost thermostate. IT already has one but I think it is wired wrong because when the timer turns off their is no constant live at any side of the honeywell froststate or boiler
The timer has a back plate marked N. L.1.2.3.4. (with power comming in from fused switch to N&L) the Boiler block has E. N. L. SWL. + E.N.L for the pump.
could someone advise where the live from timer to boiler should connect and run, and timer to frostate to boiler need to check before calling someone in Thanks
telboy
The timer has a back plate marked N. L.1.2.3.4. (with power comming in from fused switch to N&L) the Boiler block has E. N. L. SWL. + E.N.L for the pump.
could someone advise where the live from timer to boiler should connect and run, and timer to frostate to boiler need to check before calling someone in Thanks
telboy