Goodman heat pump - http://www.hvacmechanic.com/ Forums


Original message

peabody

207.118.235.22

"Goodman heat pump" , posted Tue 18 Mar 13:59:user profileedit/delete messagepost reply


I am confused on the low volt wiring between tstat, furnace, fossil fuel board, and heat pump. The system is not firing the HP. A wiring diagram for this application would be very helpful.
Furnace; Goodman model# gks90904cxac
heat pump; Goodman model# gsh130301ab
Fossil fuel board; model# afe18
tstat; white rogers model# rth7400

blow it up!

[this message was edited by peabody on Tue 18 Mar 14:05]

 

Replies:

Northern1

70.51.255.127

"Re(1):Goodman heat pump" , posted Tue 18 Mar 20:43user profileedit/delete messagepost reply


There should be an O or a B terminal on your thermostat this is to energize the 3 way valve in your heat pump which is used for your 1st stage of heating, your second stage (w2) should energize the w or heating circuit in your auxilliary heat. I dont have a schematic or I would be able to help you more, sorry..

 

 

james mo

24.2.3.222

"Re(2):Goodman heat pump" , posted Tue 1 Apr 20:41user profileedit/delete messagepost reply


here you go http://www.ewccontrols.com/acrobat/090512a0001.pdf

Another day in paradise