Hi Folks,
I recently replaced a thermostat on my heating system and am having problems getting the right wires on the correct terminals on the new thermostat. My old thermostat was a Honeywell T6360 and has 4 wires. The terminals were:
1. Live - Red Wire
2. Blue Wire
3. Yellow Wire
4. wire - Earth.
From the wiring diagram the blue and Yellow wires go to Neutral. The Yellow wire passes through the "heating load".
I have replaced the above thermostat with a nice shiny new digital one a Drayton 30002. The options for wiring are:
1. Common / Switched live from time control
2. On
3. Off
4. Neutral
5. Earth
I have tried the Red on Common but this is giving me 240V even with the timer off. If I out the yellow wire in the "On" position the system will heat the radiators, but all of the time i.e. even when the timer is off.
The new thermostat has batteries so do I still need the Red "live" wire or can this be capped off, and then which way round should I be looking for the other wires. I turned the timer on to see if I had a voltage between any combination of the other wires but they were al at 0?
Any clues would be appreciated. The thermostat in question runs our upstairs radiators only as downstairs in underfloor heating in a zone system. The thermostat connects to a two port motorised valve.
Andy
I recently replaced a thermostat on my heating system and am having problems getting the right wires on the correct terminals on the new thermostat. My old thermostat was a Honeywell T6360 and has 4 wires. The terminals were:
1. Live - Red Wire
2. Blue Wire
3. Yellow Wire
4. wire - Earth.
From the wiring diagram the blue and Yellow wires go to Neutral. The Yellow wire passes through the "heating load".
I have replaced the above thermostat with a nice shiny new digital one a Drayton 30002. The options for wiring are:
1. Common / Switched live from time control
2. On
3. Off
4. Neutral
5. Earth
I have tried the Red on Common but this is giving me 240V even with the timer off. If I out the yellow wire in the "On" position the system will heat the radiators, but all of the time i.e. even when the timer is off.
The new thermostat has batteries so do I still need the Red "live" wire or can this be capped off, and then which way round should I be looking for the other wires. I turned the timer on to see if I had a voltage between any combination of the other wires but they were al at 0?
Any clues would be appreciated. The thermostat in question runs our upstairs radiators only as downstairs in underfloor heating in a zone system. The thermostat connects to a two port motorised valve.
Andy