I need help connecting a new 'C' wire for a Honeywell RTH6500WF thermostat.
As you can see the heating is an old boilder with a simple pump to circulate the hot water to the baseboard radiators.
The A/C has 3 connectors to it.
This is the circuit board in the Blower
This is the current thermostat
I know I need to run a new wire for the additional wire but WHERE do I terminate the 'C' wire to on the thermostat? on the C terminal inside the A/C blower?
That wire runs to the compressor outside and then to the Y terminal of my current thermostat. Do I just need a new transformer? and how would I create the circuit on that.
Any help would be greatly appreciated.