We have a brand new air handler at work, but the thermostat is mounted on a wall next to a server/computer room which is always warmer than the rest of the office. I want to install a thermostat that allows for the use of a remote sensor.
The C wire is hooked up at the air handler, but is snipped short at the thermostat. There is plenty of slack for me to add more wire.
The voltage between R and C is only 15-16 volts. The air conditioner and gas furnace work perfectly fine. Is this lower amount of voltage alright for use with a modern thermostat that requires the 24 volts flow on the C wire back to the air handler board?
Model: N8MSN0701716A Supply Voltage: 18 to 30 Vac or 750 mV
I don't think the thermostat will work with the current wiring setup.
I have 28 volts between the R and Y terminals, but 15 between R and C; at the thermostat. I don't see a splice of any sort with the C wire, but who knows in the walls or in the drop ceiling between floors. The Y terminal is spliced at the air handler before it enters the Y terminal on the board. I would have expected the voltage drop to be between R and Y, not R and C.