Honeywell TH8320U with Goodman system wireing help

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Old 01-16-10, 04:22 PM
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Honeywell TH8320U with Goodman system wiring help

Hello,
I have a Honeywell TH3220U thermostat hooked up to a Goodman MBE2000AA-1 air handler and a SSZ160361 Heat pump. The aux heat has a 15kw aux heat kit. Sorry I do not have the model number right now.

The heat pump has
C - blue
W2 - white
O - orange
Y - yellow
R - red

The air handler has
Red
Green
White
Brown
Blue

So I have the wires connected to the thermostat as

C - blue (air handler and heat pump)
G - green (air handler)
Y - yellow (heat pump)
O/B - orange (heat pump)
R - Red (heat pump and air handler)
AUX - white (heat pump and air handler)
E - Brown (Air handler)

I have the Aux and E jumpered

I also have an external temperature sensor hooked up to S1 and S2.

I have not been able to get heat out of the heat pump. A/C seems to be working.

I have tried setting 190 at 0 and 1 and both seem to operate the AC. The thermostat will go to aux heat and get a little heat and when I turn off the breaker to the heat pump the air coming out of the vents gets much warmer like the AC was on cooling the air the aux heat was putting out.

This is a new installed system.

Any help is much appreciative.

Thanks
rwilde
 

Last edited by rwilde; 01-16-10 at 05:23 PM.
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  #2  
Old 01-16-10, 06:01 PM
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I'm not sure why your O/B wire is going out to the HP.

The manual I'm looking at looks like there a port for t-stat hook up, then the HP hook up.

So, wire it this way.

T-stat------Air handler(thermostat side)
R/Rc--------R
C------------C
O/B---------O
Aux---------W/W2
E------------E/W1

Then
HP---------Air handler(HP/Condenser)
R-----------R
Y-----------Y1 remove jumper from here to O
C----------Com
O----------O
W2--------W2


Dipswitch on Ah
1-off
2-on
4-off
5-on
6-on
7-off
8-off

**1 and 2, I am guessing on this.. Does the heater kit manual say how many CFM it needs to move?

T-stat set up menu.

130 to 160, you can figure out.
170-7
180-1 if shows up
190-0
200-0
210-0 if shows up
220-2
240 to 270- 3 (some may not show up)

Rest, ask if you are unsure.
 
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Old 05-25-10, 06:43 PM
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Any thought of why A/C doesn't work

Hello,

Thank You very much for the wiring help and setup help. The Heat pump and AUX heat worked fine all winter. Now that summer has come the A/C will not come on. Everything runs but there is no cold air. I checked the heat pump and it seems to still be working as it will increase the temp of the house. Is there any thing that you could think of wiring wise that might be the issue or do you think there may be a different issue and if it is a different issue then is there any hints where to check. Maybe the changeover valve (not sure if that is what it is called that switches from heat pump to A/C?


Any help would be greatly appreciated.

Thanks in advance
 
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Old 05-25-10, 08:46 PM
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If the HP worked in the heat mode, but not in cool mode, you may have a stuck valve in the system.

For test, undo the O/B wire, and see what happens, then put it back on again.
 
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