FOR A 8 WIRE THERMOSTAT HOOK UP DIAGRAM
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Need to hook up a thermostat to an 8 wire system. The
Need to hook up a thermostat to an 8 wire system. The thermostat has only 7 terminals. Heater system has terminals - Answered by a verified HVAC Technician3/5Your heating system has 4 stages of heating. It appears you have the wrong thermostat for this application. My guess is that w1,w2,and w3 are your electric heat strips. You could tie all 3 W's to the "W" terminal but this unit will definitely not run as efficiently as it could with a new thermostat. Your thermostat also does not have an "E" terminal which is emergency heat and would shut off the heat pump and run electric heat strips only.You have Green, Yellow, white, Red, Black, Orange Red Green is your natural White is your reverse hot red/ black is your hot Yellow is for your fan. Do you have the name and model of your old unit? and can you give me the make and model of your new unit. Some model can be converted. But it is important to know which ones you have and if a conversion is recommended.C , Y, R, E, W1, W2, W3, G, My THERMOSTAT Terminals are. G, Y, W, RH, B, O, RC C-B(common 24v),Y-Y(compressor),R-RH and RC(24v hot jumper RH to RC at thermostat),??-O(reversing valve for heatpump),E-??(electric emergency heat), W1-??, W2-??, W3-??,G-G(fan) Once again you need a thermostat with 4 stages of heating. This thermostat is for a heatpump and you don't appear to have a W terminal which would engage 1 stage heating only. If your thermostat does have a "W" terminal you could wire all 3 stages of W to that terminal. Hope this helps. Sorry if I was unclear before.
For A 8 Wire Thermostat Hook Up Diagram - 154garden
For A 8 Wire Thermostat Hook Up Diagram - thermostat wire es in various weights if you have heat and ac you ll need 18 5 if you ve only got heat 18 3 is sufficient