WIRING DILEMA , Honeywell Thermostat RTH7500D Programmable
[F]Hello,
I want to replace an Old thermostat mechanical type WHITE-RODGERS 1F56W-361model with the high tech Honeywell RTH7500D Programmable,. read carefully the Owner's Guide but my situation doesn't fit any description.
I have 6 wires on the old thermostat to terminals:
-RG(1wire)
-RH(2 wires,on the same terminal)
-G(1wire)
-W(1wire)
-Y(1wire)
The colors on this wires don't think counts as long as I will TAG them properly(and anyway they are only black and white)
THE PROBLEM is that the book for Honeywell says don't connect 2(TWO) wires on the same terminal!
I think the problem came from the installation of the AIR CON. Unit ,later on, approx. after 1 year I moved in the house .
Furnace is air forced type LENNOX 90UGFA2-50-6 AIR CON. CARRIER
Now probably the technician who installed the air con. Unit didn't bother to put a new wire with 5 wires and he used old wires . I checked and on the FURNACE I also have a terminal with 2 wires .
I would greatly appreciate an expert opinion in this mater .
IS IT REALLY WRONG to connect 2(two) wires on the same terminal?:confused: