Thermostatic Controls - Honeywell VisionPro IAQ & Heat Pump Problem

Installed a 2 Stage Heat Pump a month ago and cooling worked without a problem. The VisionPro IAQ is set to auto and when it switches to Heat now that it is getting cold the Compressor will cycle on briefly and then shut off. The compressor will restart again after what appears to be the minimium compressor off time set at 5 minutes and it seems to stay on progressively longer. After 2-4 cycles the compressor stays off and the fan will continue until the emergency heat kicks in. I have gone through the installer cooling system test #1-1 and Y, G & O/B are energized correctly as is test #1-2 with Y, Y2, G & O/B energized. It is when I get to the heating system test #3-1, 3-2 that I have a problem. Initially, on both 3-1 (Y & G are energized) and 3-2 (Y, Y2 & G are energized and heat is generated by the Heat Pump. After a couple minutes O/B is energized on both 3-1 and 3-2 and the compressor stops and the fan blows until the emergency heat (2 state gas furnace) kicks in. Additionally, test 3-1 (stage 1 heating test) will kick up to stage 2 after a few minutes. System test 3-3 (W1 &G) and 3-4 (W1, W2 & G) work properly and engage stage 1 and stage 2 on the furance as expected.

ISU Parameters
172 is set to 2 (heat pump)
174 is set to 2 (cool compressor stages)
176 is set to 2 (heat pump aux states)
190 is set to 0 (O/B terminal is energized in cooling)
200 is set to 1 (fossil fuel backup heat)
346 is set to 60 (upstage to furnace timer)
350 is set to 15 (balance point)
530 is set to 0 (Adaptive Intelligent Recovery temporally off while trouble shooting)
540 is set to 4 (# of periods)
580 is set to 5 (min compressor off time)
650 is set to 0 (extended fan on time heat)
660 is set to 30 (extended fan on time cool)
The LED in the EIM (equipment interface module) is not always on or off or blinking continuously to indicate a problem and the tstat is not dislaying a error code. The last bit of information is the red LED in the upper right corner of the tstat has never lit up indicating there is a heat pump except briefly when I reset the tsat to clear settings and start over.

To me it appears that if the O/B terminal did not energize (it is not immediate) during heating, then the system would work as expected.

I currently have the system set to emergency heat until this problem is resolved. This is my first experience with the combination of Honeywell IAQ, 2 stage heat pump and 2 stage 95% furnace.

I have created a wiring diagram to see if anything appears incorrect but it doesn't appear that I can attach a file to this post. I color coded the wiring spreadsheet to simplify identifying connections from Heat Pump to the IAQ interface module and then to the furnace.

Any suggestions would be appreciated.

Thanks for your help,

JK

it switches to Heat now that it is getting cold the Compressor will cycle on briefly and then shut off. The compressor will restart again after what appears to be the minimium compressor off time set at 5 minutes and it seems to stay on progressively longer.
Is the fan outside running the whole time, or both fan and compressor will come on for a short time and shut off?


After 2-4 cycles the compressor stays off and the fan will continue until the emergency heat kicks in.
Does the unit outside lock up and stays off?


It is when I get to the heating system test #3-1, 3-2 that I have a problem. Initially, on both 3-1 (Y & G are energized) and 3-2 (Y, Y2 & G are energized and heat is generated by the Heat Pump. After a couple minutes O/B is energized on
The O/B shouldn't power up on heat mode....

All of the settings on the IAQ are correct.

To me it appears that if the O/B terminal did not energize (it is not immediate) during heating, then the system would work as expected.
Correct.

Since this was just put in, I'd have the dealer replace the EIM under warranty.

I have created a wiring diagram to see if anything appears incorrect but it doesn't appear that I can attach a file to this post. I color coded the wiring spreadsheet to simplify identifying connections from Heat Pump to the IAQ interface module and then to the furnace.
The image will need to be uploaded onto a host site like yahoo, or the like.

Quote: Originally Posted by jkosanke it switches to Heat now that it is getting cold the Compressor will cycle on briefly and then shut off. The compressor will restart again after what appears to be the minimium compressor off time set at 5 minutes and it seems to stay on progressively longer.

Question: Is the fan outside running the whole time, or both fan and compressor will come on for a short time and shut off?
Reply: Both the fan and compressor will come on for a short time and then both will shut off

Quote: After 2-4 cycles the compressor stays off and the fan will continue until the emergency heat kicks in.

Question: Does the unit outside lock up and stays off?
Reply: When the emergency heat comes on the compressor and fan outside stay off.

Quote: It is when I get to the heating system test #3-1, 3-2 that I have a problem. Initially, on both 3-1 (Y & G are energized) and 3-2 (Y, Y2 & G are energized and heat is generated by the Heat Pump. After a couple minutes O/B is energized on

The O/B shouldn't power up on heat mode....
Reply: That's what seemed to be the problem from my troubleshooting. After getting heat for a couple minutes O/B and Y2 would energize (compressor and fan would stop) and the heat would stop and blower (at high speed) would recirculate air throughout the house. I would think if O/B, Y &Y2 were energized that the HP would be cooling? I will recheck as it doesn't make sense to me.

All of the settings on the IAQ are correct.

Quote: To me it appears that if the O/B terminal did not energize (it is not immediate) during heating, then the system would work as expected.

Correct. Since this was just put in, I'd have the dealer replace the EIM under warranty.
Quote: I have created a wiring diagram to see if anything appears incorrect but it doesn't appear that I can attach a file to this post. I color coded the wiring spreadsheet to simplify identifying connections from Heat Pump to the IAQ interface module and then to the furnace.

The image will need to be uploaded onto a host site like yahoo, or the like.
Reply: Here is a link to the wiring diagram:

KOSANKE HVAC LOW VOLTAGE WIRING.jpg - Windows Live (http://cid-150cdb8863128be9.skydrive.live.com/self.aspx/HVAC/KOSANKE%20HVAC%20LOW%20VOLTAGE%20WIRING.jpg?authkey=PTYo3*Yb6nc%24)

Thanks for your help, JK

Quote: Originally Posted by jkosanke it switches to Heat now that it is getting cold the Compressor will cycle on briefly and then shut off. The compressor will restart again after what appears to be the minimium compressor off time set at 5 minutes and it seems to stay on progressively longer.

Question: Is the fan outside running the whole time, or both fan and compressor will come on for a short time and shut off?
Reply: Both the fan and compressor will come on for a short time and then both will shut off
When it shuts off outside, does the EIM still show power on Y?



Reply: Here is a link to the wiring diagram:
Only thing I see wrong in the wire is the W2 from the HP needs to go to AUX1 on the EIM. 2nd stage is not going to fire off right away when it goes into defrost mode.