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  1. Thanks for the info Ryan. Is there a more...

    Thanks for the info Ryan. Is there a more desirable setting for the CPH? I will be keeping an eye on it-once it is actually up and running. It keeps throwing code 89 and 91 and shutting off. There...
  2. The heats strips were sized down to 15 KW and...

    The heats strips were sized down to 15 KW and supposed to be wired to be staged. We did not have the power to the unit required to operate the 20 KW strips and our previous unit had 15 KW strips so I...
  3. Well, the Heat Pump shut off again between 1:00pm...

    Well, the Heat Pump shut off again between 1:00pm and 5:15pm today. I am waiting to find out what my dealer is going to do.

    It is a 900 series t-stat.
  4. I believe it is the 900 series T-stat. I was...

    I believe it is the 900 series T-stat. I was considering upgrading to the 9500 though. Has anyone else had problems with the 9500 and the ZM20? I assumed that it would be a better t-stat to pair with...
  5. I do not know what the outside stat is set at. I...

    I do not know what the outside stat is set at. I had considered that it may be in defrost mode. I'm not sure it needs to defrost that often, but being a smart, learning thermostat it is possible.
    ...
  6. Went home for lunch and manually adjusted temp to...

    Went home for lunch and manually adjusted temp to 70 from 68. System operated in standard heat mode to bring temp up. I checked every 5 minutes to be sure. Towards the end of lunch about 45 minutes...
  7. American standard Platimun ZM20 heat pump running excessively on aux. heat

    We just had an American Standard Platinum ZM20 heat pump with a new Platinum ZV air handler installed to replace our aging Trane 24+ year old 13 seer heat pump. The new unit seems to be operating...
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