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Subject Author Date
thermostat - EM / Aux Heat Giles Harney 02-11-2008
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Posted by Dr. Hardcrab on February 11, 2008, 10:23 pm

>I have a heat pump that is controlled by a Honeywell CT3611 thermostat.
>Previously the thermostat use to be one of those "analog" type tstats. The
>"problem" I have with the Honeywell tstat is that it likes to kick on the
>aux heat (resistance) frequently which really causes the electric meter to
>spin. The previous thermostat would only use aux heat if I selected it. If
>I raise the temp by just one degree on the Honeywell tstat it turns on the
>aux heat. Is there a way to raise the trigger limit on the thermostat to
>tell it not to call for aux heat for temperature differences less than 5
>degrees? Could I just disconnect the aux wire (and cap it) so as to prevent
>the aux / resistance heat from switching on?
> Thanks,
> -Giles

Did you go through the setup program after you installed it???

http://www.gogeisel.com/geiselonline/support/Honeywell/CT3611.pdf


Real Goods Solar, Inc.
Posted by Giles Harney on February 11, 2008, 10:38 pm

>
>>I have a heat pump that is controlled by a Honeywell CT3611 thermostat.
>>Previously the thermostat use to be one of those "analog" type tstats. The
>>"problem" I have with the Honeywell tstat is that it likes to kick on the
>>aux heat (resistance) frequently which really causes the electric meter to
>>spin. The previous thermostat would only use aux heat if I selected it. If
>>I raise the temp by just one degree on the Honeywell tstat it turns on the
>>aux heat. Is there a way to raise the trigger limit on the thermostat to
>>tell it not to call for aux heat for temperature differences less than 5
>>degrees? Could I just disconnect the aux wire (and cap it) so as to
>>prevent the aux / resistance heat from switching on?
>> Thanks,
>> -Giles
>
> Did you go through the setup program after you installed it???
>
> http://www.gogeisel.com/geiselonline/support/Honeywell/CT3611.pdf
>

Of course. There are no parameters to adjust the deadbands mentioned in the
manual / instructions.



Posted by Dr. Hardcrab on February 12, 2008, 5:47 pm

>
> Of course. There are no parameters to adjust the deadbands mentioned in
> the manual / instructions.

Yeah sorry about that. I guess it's true what another poster posted:

You don't get the same manuals with the "big box" purchase. There is usually
an installers manual.

BTW, that t'stat is no longer made....


Posted by Mo Hoaner on February 12, 2008, 7:47 pm

>
>>
>>>I have a heat pump that is controlled by a Honeywell CT3611 thermostat.
>>>Previously the thermostat use to be one of those "analog" type tstats.
>>>The "problem" I have with the Honeywell tstat is that it likes to kick on
>>>the aux heat (resistance) frequently which really causes the electric
>>>meter to spin. The previous thermostat would only use aux heat if I
>>>selected it. If I raise the temp by just one degree on the Honeywell
>>>tstat it turns on the aux heat. Is there a way to raise the trigger limit
>>>on the thermostat to tell it not to call for aux heat for temperature
>>>differences less than 5 degrees? Could I just disconnect the aux wire
>>>(and cap it) so as to prevent the aux / resistance heat from switching
>>>on?
>>> Thanks,
>>> -Giles
>>
>> Did you go through the setup program after you installed it???
>>
>> http://www.gogeisel.com/geiselonline/support/Honeywell/CT3611.pdf
>>
>
> Of course. There are no parameters to adjust the deadbands mentioned in
> the manual / instructions.
>
How long have you had the stat?



Posted by Giles Harney on February 12, 2008, 8:06 pm


> How long have you had the stat?

approx 2 years



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