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TH8320U controlling a Goodman GPD1424070M41 package dual fuel, need wiring hep.

TH8320U controlling a Goodman GPD1424070M41 package dual fuel, need wiring hep.


  #1  
Old 04-07-14, 04:06 PM
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TH8320U controlling a Goodman GPD1424070M41 package dual fuel, need wiring hep.

Just as the title says. th8320u has a combined aux/e lug now and has me somewhat intrigued.
 
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Old 04-07-14, 05:34 PM
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Welcome to the forums.

There are "typical" color codes but some installers don't follow them.

A big help would to look at your current thermostat..... let us know what model it is and how the wires are currently connected.

R = red
G = green
etc .....
 
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Old 04-07-14, 05:49 PM
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http://www.alpinehomeair.com/related...D%207.2013.pdf


HEATING CYCLE (NATURAL GAS/ LP)
1. The Dual Fuel unit will operate in gas heat mode when the
thermostat calls for a W-1 or W-2 signal. If outdoor thermostat
is installed, the unit will operate in gas heat when ambient is
below set point or the unit receives call for low or high stage
gas heat.
2. Induced draft blower energizes for 15-second pre-purge.
3. A 7-second trial for ignition begins by energizing the low and
high stages of the gas valve along with this spark ignition.
NOTE: The igniter produces a very intense electrical spark
that ignites the gas.
4. Main burners light and control detects presence of flame.
5. If the call is for low stage heat, the induced draft blower
switches from high to low speed and the gas valve from high
to low stage within 5 seconds after the main burners light. If
call is for high stage heat, induced draft blower remains at
high speed and high stage gas valve remains open.
NOTE: If a W2 is not used, the control will step to low stage
after the main burners light and remain at low stage for 5
or 10 minutes, depending on jumper position. If the jumper
is set to none, you will never get a call for high stage heat.
If the call for HEAT remains after the transition delay time
expires, the control will transition from low stage to high stage.
Connect Aux/E to W1.
 
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Old 04-08-14, 05:32 AM
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Ok, this is a whole new system. The package has the following wire designations,
Red- R 24
Green- G fan
Orange- O Rev. valve
White- W1 heat 2nd
Brown- W2 heat 3rd
Yellow- Y cool
Blue- C 24 common

The stat has the following lugs,

Y2 RC jumped to R
L R
Aux/e O/B
Y
S1 G
S2 C

I have seen other TH8000 series that the aux and e are separate but not on this one. The pack has 1 hp heat mode and the gas portion is 2 stage. I want to program the stat at 12 for 170, 0 for 180, 0 for 190, 1 for 200, the rest are a toss up I'll figure out later.
 
 

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