Thermostat upgrade help
I had a new 15k btu ac installed in 2012 and an analog thermostat was installed. I've ordered a new digital thermostat with control box, and according to Dometic, I have the correct one. However, th...
Forum Discussion
I decided not to use the kit if I can get the Honeywell to work, so I am using the existing analog control box.
Testing the Tstat wires, not hooked to the Tstat, the red wire gives 7.8 volts using grn as the ground; 0 on all others. Blue as positive gives 11.9 on grn, 3.5 on Y, 0 on others; Y as positive gives 8.9 on grn and -3.5 on others; W as positive gives 11.9 on grn, 3.5 on Y, and 0 on others; using Grn as positive gives -'s on all; using brn as positive gives 11.9 on grn and 0 on others.
So, B and W have 11.9 using grn as a ground and Y has 8.9 using grn. Is it safe to assume that Blue should be used as the trigger wire connected to Rc/Rh?
Testing the Tstat wires, not hooked to the Tstat, the red wire gives 7.8 volts using grn as the ground; 0 on all others. Blue as positive gives 11.9 on grn, 3.5 on Y, 0 on others; Y as positive gives 8.9 on grn and -3.5 on others; W as positive gives 11.9 on grn, 3.5 on Y, and 0 on others; using Grn as positive gives -'s on all; using brn as positive gives 11.9 on grn and 0 on others.
So, B and W have 11.9 using grn as a ground and Y has 8.9 using grn. Is it safe to assume that Blue should be used as the trigger wire connected to Rc/Rh?
