Install Digital Thermostat & Wiring

rjr6150

Well-known member
Has anyone changed their mechanical t/stat out for a new digital heating and AC one? If so would you have the wiring diagram please. Also did you notice any difference in the temperature variation.

Thanks
 

katkens

Founding Illinios Chapter Leader-retired
Hunter thermostat-429958
Ground (green ) to RC & RH terminals -threw jumper wire
Fan & HI speed ( tan & blue ) to G terminal
A/C cool (yellow ) to Y terminal
Heat ( white ) to W terminal
Red wire not used-tape off

Well worth the $20.00 or so to change out , best upgrade for the bucks in my opinon. Search --Hunter Thermostats - all kinds of reading.....Ken
 

linuxkidd

Member
Make sure on the new Digital Stat, that you switch it from HE to HG mode ( usually a lil switch on the back.. )

What the switch does:
HE -> Heat: Electric => Thermostat controls the fan in heat mode
HG -> Heat: Gas => Thermostat only controls the heat signal.. the Furnace controls the fan.

This is required since there is no fan control for Gas / Propane furnaces used in our coaches.

I've had mine on digial since the 1st week I had the RV ( Mid December ). LOVE IT!

Hope this helps,
LK
 

mountainlovers76

Mississippi Chapter Leaders
Put a Hunter digital in mine as soon as I got it home. Found the info and diagrams through this forum and it works great. You will not regret going to digital.
 

rustyone

Member
This what I used to wire my Big Horn.

hunter-wiring.jpg thermostat.jpg

If you don't use the switch for low fan speed. wire the 2 wire together and it will run on high fan only.

Rusty
 
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