This is my first post and having read through many posts on here this morning, I still am yet to find one that can help me directly. This is a very good forum though and I have learned a lot from reading through various posts.
Anyway my post :-
I have bought a SUNVIC programmable room thermostat (£30) It is a TLX6501. I currently have a DRAYTON TEMPUS 7 programmer which controls both HEATING and HOT WATER. I have a 3 port valve and a circulating pump also, which are both upstairs in the airing cupboard, behind my bath.
Basically I know currently I do not have the CH ON terminal wired up in the programmer, as it is not required. But, for a programmable room thermostat to work, I will have to slightly alter the wiring to my system.
My old room thermostat is a normal type, and has 3 wires going to it. They are marked as COMMON, CALL and NEUTRAL.
The new programmable one has 3 terminals, COMMON, NO and NC.
From reading the instruction booklet it says connect live to the COM terminal. Connect HEATER/COOLER in series with NO and neutral. So, I am a little puzzled here. Is heater the ON (CALL) terminal and cooler the OFF (SATISFIED) terminal ?
I need a permanent live for the programmable stat to work properly, to come on independent of the programmer (and also will no longer be wired to the programmer)
Am I way off track here or nearly there...? Please help experienced plumbers/heating engineers.. I have done some plumbing and wiring myself in the past, I have replaced a faulty cylinder thermostat and a circulating pump, rad valves by plugging the feed tank feed and vent pipes, and installed new rads in my home, so am not a complete dunce!!!
Looking forward to your help. Hoping to get this done this afternoon
Anyway my post :-
I have bought a SUNVIC programmable room thermostat (£30) It is a TLX6501. I currently have a DRAYTON TEMPUS 7 programmer which controls both HEATING and HOT WATER. I have a 3 port valve and a circulating pump also, which are both upstairs in the airing cupboard, behind my bath.
Basically I know currently I do not have the CH ON terminal wired up in the programmer, as it is not required. But, for a programmable room thermostat to work, I will have to slightly alter the wiring to my system.
My old room thermostat is a normal type, and has 3 wires going to it. They are marked as COMMON, CALL and NEUTRAL.
The new programmable one has 3 terminals, COMMON, NO and NC.
From reading the instruction booklet it says connect live to the COM terminal. Connect HEATER/COOLER in series with NO and neutral. So, I am a little puzzled here. Is heater the ON (CALL) terminal and cooler the OFF (SATISFIED) terminal ?
I need a permanent live for the programmable stat to work properly, to come on independent of the programmer (and also will no longer be wired to the programmer)
Am I way off track here or nearly there...? Please help experienced plumbers/heating engineers.. I have done some plumbing and wiring myself in the past, I have replaced a faulty cylinder thermostat and a circulating pump, rad valves by plugging the feed tank feed and vent pipes, and installed new rads in my home, so am not a complete dunce!!!
Looking forward to your help. Hoping to get this done this afternoon