Thermostat cable with no Green wire. Only R,W,Y and B. Please HELP?
Jul 27, 2007 by IntelAMD | Posted in Do It Yourself (DIY)
I am going to replace to my old honeywell thermostat ( has mercury vail in it) to a RiteTemp digital thermostat. When I removed the old thermostat, I notice that the old thermostat connected with red and white wire only. However, the thermostat cable
Dint panic, most thermostat wire run has extra wire in it to be used for differ model of HVAC unit.
ex:different speed controls, fresh air dampers etc.
If u really want to be safe contact a HVAC pro.