Recent content by DamonBristol

Ok cool. So if I understand then the TM4 needs to enable/disable the common wire and that will be sufficient to override the Nest's call for heat. Is that right?

The reason we want to do this is that we each of the zones goes to a set of offices where different tenants are being given control of the Nest Thermostat for their zone. Then centrally the building landlord who pays the electric bills (on a time of use tariff) controls the TM4 timer. So they...

Hi there, I'm trying to wire multiple Nest Thermostats (Nest Heat Links) as zone controllers in a multi-zone system with a Heatmiser UH8 wiring centre for the zone actuation. The UH8 provides: -> Live/Neutral -> Timeswitch 1/2 -> Earth -> Switch Live The Nest provides: -> Live/Neutral -> Call...