On Thu, 13 Nov 2008 23:01:51 +0000, Mike Clarke wrote:

This isn't the case with all of them. Some, e.g. Honeywell HC60NG (used
with the CM927 wireless programmer) need a permanent line and neutral
supply for the electronics in addition to the thermostat switch circuit.
Depending on the design of your boiler you may or may not be able to use
the live side of the existing thermostat connection for this..

Yes but why would you want to put the receiver/relay unit of a wireless
stat where the old wired stat was? Either fit a CM907 wired progstat
(approx £55) in place of the wired thermostat or fit a wireless CM927 with
the HC60 base unit fitted at the boiler, where live, neutral and switched
live are available.



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