Is there a problem here?
Last Post 24 Nov 2008 04:45 PM by engineer. 2 Replies.
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kiphornUser is Offline
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24 Nov 2008 08:30 AM
Over the weekend my family was complaining about being cold. Unfortunately I think it was humidifier problem which I'm working on resolving. To help with the complaints I bumped the heat up 2°.

My question involves the operation of the unit. When the unit was installed a Honeywell TrueZone was installed to handle the new zone for the basement. If you look at the front panel there are lights for cooling, heating, fan, purge and EM Heat.

In the summer with the AC, the fan would start in Cool 1 and eventually slow and switch to Cool 2.

So far this heating season I've been seeing the system in Heat 1 all of the time until this weekend when Heat 2 and Heat 3 were lit. The fan seemed to be blowing just as hard as it did when operating in Heat 1. Are these lights not indicating which stage the fan is operating in?

My temp setting is 68° from 4 PM to 5 AM. At 5 AM the temp goes up to 70° so the house is warmer when everyone gets out of bed. This morning at around 6 AM I noticed the thermostat was indicating AUX HEAT. The house was 70° and the exterior temperature was 30°. Should the AUX HEAT (which I assume is the heat strip) be turning on for a 2° increase on a 30° day? I was awake at 4AM and heard the system kick on. It ran constantly until I got up to get into the shower at 5:30. It was still running at 6 AM when I noticed the AUX HEAT.

I have a Honeywell Thermostat controlling the system.

Thanks for the help.
Kip Horn<br><br>Tranquility 27 (June 2008)
heatoftheearthUser is Offline
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24 Nov 2008 10:46 AM
maybe maybe not aux heat can certanly kick in with 2* diff.
there has been a long debate about wether or not to lower your thermostat
the debate stems from the fact that geothermal heat pumps are sensitive to entering air temp.
i say set it and leave it
your system should always operate within design limits
since its new and it just got cold(northeast) leave the thermostat at one temp and monitor it
you might call your installer and ask him for the design specs(relating to stages)
but i would gather your own info on how the system is functioning to see if it is within his parameters
engineerUser is Offline
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24 Nov 2008 04:45 PM
You will almost certainly lose, not save, money if you setback and then system needs / uses aux heat to recover. This is assuming that the aux heat source is electric resistance 'strip' heaters'
Curt Kinder <br><br>

The truth is incontrovertible. Malice may attack it, ignorance may deride it, but in the end, there it is - Winston Churchill <br><br><a href="http://www.greenersolutionsair.com">www.greenersolutionsair.com</a>
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