wiring sunvic sp50 (existing) to honeywell cm927 (new)

[jeffvan]

Was hoping to get a bit help with the new CM927 just bought because my current thermostat is not located in the optimal position. Currently have a Sunvic SP50 programmer that controls heating (wired thermostat) and hot water. Have read a couple of threads on here that mention just wiring up the CM927 directly.

The sunvic SP50 is currently using the following wiring:
1 not used
2 Brown wire from switch for HW
L live wire from switch. Also linked to 3.
N neutral from switch. Also hooked up to Thermostat

3 linked to L
4 not used
5 to thermostat Live connection.

Boiler is a Glow worm Hideaway FF. Any help would be greatly appreciated.

 

[bengasman]

It would be much simpler if you compared the installation instructions of the thermostat and the boiler; they have the connections with diagrams and all.