Wiring an RCS TR40 Thermostat?

Helheim

Active Member
This is what my existing wiring looks like:
HVAC_Current.jpg


Do I need to run a wire from the C (24V Com) terminal on the furnace to the C terminal on the RCS control unit? Does this look right?
HVAC_TR40.jpg


Thanks.
 
Oh and I'm not really sure about that transformer thing it's in a box called a T-Vent enclosure with a Honeywell transformer and a Hawkeye 708 in there as well.
 
Mine obviously looked differently - but I only used 3 wires between my furnace and the control unit. 24V, Heat and Cool if I remember right... Sorry - not sure this helps you any...
 
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