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What is heat pump cycle rate?

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What is heat pump cycle rate? Saucer Man 09-26-2007
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Posted by Saucer Man on September 26, 2007, 5:49 pm
I can set my thermostat for different cycle rates.

Fast Medium Slow

FA ME SL

0.9°F 1.2°F 1.7°F



What does this actually mean and any recommendations?


--

Thanks.




Posted by on September 26, 2007, 10:00 pm

> I can set my thermostat for different cycle rates.
>
> Fast Medium Slow
>
> FA ME SL
>
> 0.9°F 1.2°F 1.7°F
>
>
>
> What does this actually mean and any recommendations?


Installing a new stat?



Posted by Saucer Man on September 27, 2007, 5:16 pm
Yea...just finalizing the intial setup.

--

Thanks.


>
>> I can set my thermostat for different cycle rates.
>>
>> Fast Medium Slow
>>
>> FA ME SL
>>
>> 0.9°F 1.2°F 1.7°F
>>
>>
>>
>> What does this actually mean and any recommendations?
>
>
> Installing a new stat?
>
>



Posted by Len_HVAC on September 27, 2007, 8:47 am
Saucer Man wrote:
> I can set my thermostat for different cycle rates.
> What does this actually mean and any recommendations?

cycle rate refers to (heat or cool) to the delivery rate, think about it as a
sensitivity to the change in temperature (high or low sensitivity) or as some
tstats
express it as a simple integer value within 1 hour, ie. the maximum numbers of
cycles
allowed within a 60 min timeperiod.

in your case the Fast setting would cause system to come one with a 0.9 setpoint
change as opposed to more slowly respond to a Slow change of 1.7 degrees.
Clearly,
the Fast setting will run more cycles in one hour and will not allow large
variations
to occur within limits of your tstat temperature setpoint

hope that helps


Posted by Saucer Man on September 27, 2007, 5:17 pm
Yes. Thanks. The tstat defaults to 1.2 so I think I will leave it at that.

--

Thanks.


> Saucer Man wrote:
>> I can set my thermostat for different cycle rates.
>> What does this actually mean and any recommendations?
>
> cycle rate refers to (heat or cool) to the delivery rate, think about it
> as a sensitivity to the change in temperature (high or low sensitivity) or
> as some tstats express it as a simple integer value within 1 hour, ie. the
> maximum numbers of cycles allowed within a 60 min timeperiod.
>
> in your case the Fast setting would cause system to come one with a 0.9
> setpoint change as opposed to more slowly respond to a Slow change of 1.7
> degrees. Clearly, the Fast setting will run more cycles in one hour and
> will not allow large variations to occur within limits of your tstat
> temperature setpoint
>
> hope that helps
>



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