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RE: Thermostat with RS232



Hi Kenneth.

Just one clarification - the control unit actually pushes out 24cAC, not
DC. Those relays are a little harder to find!

regards,

Julian



-----Original Message-----
From: Kenneth Watt [mailto:kwatt@xxxxxxx]
Sent: 25 February 2003 14:53
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Thermostat with RS232


> What components do you need to use to get around the 24V/240V problem?
How
> are they wired?

A relay that is capable of shifting 240AC to 24V DC readily available
>from

After that it's just DCV in from the stat to operate the relay and mains
out as to operate the boiler basically creating a switch at that point
operated remotely by the stat.

The RCS TX15B X10 thermostat is the same deal.

HTH

K.





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