Hi there
Wondering if anyone can help with the wiring of a Honeywell ST9100C timer for my boiler.
I have a simple single channel combined heating/hot water system with the following components:
Potterton Flamingo 20 -30 boiler (old but reliable) with built in thermostat
Grundfos Selectric pump
Mains feed from a normal plug socket.
I am replacing an old Sangamo Timer that has a much simpler wiring configuration but has started squeaking very loudly. The wiring currently has three terminals and an earth. The first terminal takes the live feed from the mains, the second takes the all neutrals from mains, boiler and pump and the third takes the live to the boiler and pump. All three earths are earthed to existing timer.
The Honeywell has N, L, T1, T2, T3 ,T4 and parking terminal for external earth continuity. I just need the timer to power the boiler according to timer settings and have no motorised valves or room thermostats.
Can anyone help? Much appreciated if you can.
Wondering if anyone can help with the wiring of a Honeywell ST9100C timer for my boiler.
I have a simple single channel combined heating/hot water system with the following components:
Potterton Flamingo 20 -30 boiler (old but reliable) with built in thermostat
Grundfos Selectric pump
Mains feed from a normal plug socket.
I am replacing an old Sangamo Timer that has a much simpler wiring configuration but has started squeaking very loudly. The wiring currently has three terminals and an earth. The first terminal takes the live feed from the mains, the second takes the all neutrals from mains, boiler and pump and the third takes the live to the boiler and pump. All three earths are earthed to existing timer.
The Honeywell has N, L, T1, T2, T3 ,T4 and parking terminal for external earth continuity. I just need the timer to power the boiler according to timer settings and have no motorised valves or room thermostats.
Can anyone help? Much appreciated if you can.