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Old 01-28-2019, 06:07 PM   #21
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Brand: Thor Motor Coach
Model: Windsport 34E
State: North Carolina
Posts: 301
THOR #13360
TS replacement

I'm trying to replace the slide TS with a digital. However the wiring is a bit different. The new TS shows 4 wires and my old one has 6. The colors match up until you get to the gray wire which.
The TS bar shows Blue, "O", Green,Yellow, white, Not used, Red, RC.
Honeywell says they don't go by wire color but function. Their functions are Red 24 volt power, Yellow Compressor, G fan, o/b is for reversing valve, C is common 24 volts, W is heat for furnace

Anyone have an idea is I should hook up the Blue then hope the "O" is gray?
The unit is an Airxcel 48000, TS is Honeywell RTH2300/RTH221
I thought this would be easy.
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Old 01-28-2019, 06:37 PM   #22
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Brand: Thor Motor Coach
Model: 21RB
State: California
Posts: 9
THOR #14145
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Originally Posted by MTHook View Post
I'm trying to replace the slide TS with a digital. However the wiring is a bit different. The new TS shows 4 wires and my old one has 6. The colors match up until you get to the gray wire which.
The TS bar shows Blue, "O", Green,Yellow, white, Not used, Red, RC.
Honeywell says they don't go by wire color but function. Their functions are Red 24 volt power, Yellow Compressor, G fan, o/b is for reversing valve, C is common 24 volts, W is heat for furnace

Anyone have an idea is I should hook up the Blue then hope the "O" is gray?
The unit is an Airxcel 48000, TS is Honeywell RTH2300/RTH221
I thought this would be easy.
The blue should be capped off if the thermostat is powered by batteries. The gray is your low speed fan. See the attached pic. If you want both fan speeds you'll have to put in a Single pole Double throw switch(SPDT) you only use yellow(Y) for compressor, white(W) for heat, red(R/RC) for power and Green Gray(G) for the fan( you can either just hook up the high or low and cap whichever one you dont use or do the switch add mod)Click image for larger version

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Old 01-28-2019, 06:45 PM   #23
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Brand: Thor Motor Coach
Model: 21RB
State: California
Posts: 9
THOR #14145
Quote:
Originally Posted by MTHook View Post
I'm trying to replace the slide TS with a digital. However the wiring is a bit different. The new TS shows 4 wires and my old one has 6. The colors match up until you get to the gray wire which.
The TS bar shows Blue, "O", Green,Yellow, white, Not used, Red, RC.
Honeywell says they don't go by wire color but function. Their functions are Red 24 volt power, Yellow Compressor, G fan, o/b is for reversing valve, C is common 24 volts, W is heat for furnace

Anyone have an idea is I should hook up the Blue then hope the "O" is gray?
The unit is an Airxcel 48000, TS is Honeywell RTH2300/RTH221
I thought this would be easy.
I just did mine about 2 weeks ago. I was in the same boat here is a pic of mine.Click image for larger version

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Old 01-28-2019, 07:16 PM   #24
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Brand: Thor Motor Coach
Model: Palazzo 36.1
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THOR #13712
While our furnace works well, we went the small electric heater route (two actually) and can use them where and when needed. not interested in chasing wires through walls - did that enough on a home and condo remodel!
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Old 01-28-2019, 07:43 PM   #25
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Brand: Thor Motor Coach
Model: Windsport 34E
State: North Carolina
Posts: 301
THOR #13360
Thanks for the pictures and descriptions, Off to the store to get a switch. I think having the 2 speed fan is worth the extra time.
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Old 01-28-2019, 08:03 PM   #26
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Model: ACE 27.1
State: Florida
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THOR #7035
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Originally Posted by Kickstand View Post
Add 10ish amps for the furnace blower at the same time, and youíll max out fast with other appliances. Not as much of a concern with 50amp and their oodles of available watts.
That's 10 ish DC amps which equates to 1 ish AC amps. Not a concern.
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