confused about two thermostats….
ok so here is what i have….. i have been renting a house for about a year now, and have always delt with using a digital thermostat to control wether the heat is on or the a/c, and an old mercury thermostat in a diff. location for the actual setting of the temps…. i am wondering if there is anything i could do to combine the two because its annoying!
Here are the wires comin from the wall to my digital thermostat….
red, green, yellow, and white, all are connected except the white!
Here are the wires comin from the wall to my mercury thermostat which only has temp settings, no switch for a/c or heat, no fan switch etc.
red, white, yellow, green and blue, now here the only wires connected are the white and red…. any idea???
any suggestions would be great thnx
Replies
Absent a (totally non-standard) relay lashup, the old thermostat only controls heat.
Given the color codes it sounds like the old thermostat controls heat, the new one cooling, and if you set them wrong you can have AC and heat running at the same time.
Color codes (sorta standard) are:
Red -- hot
Yellow -- AC
Gray/green -- fan
White -- heat
Normally no neutral connection, but brown if there is one.
Maybe consider
deleting your duplicate post?? That is confusing, too.