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Old 07-30-2013, 05:05 PM   #1
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Off season furnace question Rheem


Rgpl10ebrmr furnace Criterion II plus LXE

Heat airflow adj switches 1and 2

If you adjust this to achieve mid rise +10, I assume that the ECM slows the cfm to create the additional temp rise?

If yes, do we know how much the loss in cfm will be? Not sure if I asked that right?

Thanks
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Old 07-30-2013, 06:09 PM   #2
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Off season furnace question Rheem


not sure about that Rheem but with Lennox they have the airflow at the different dip switch settings in the install manual. they will give it to you but you must do a delta T heat rise temp to make sure it is not overheating. if not contact Rheem and I am sure they have in for their dealers or can get it for you in a pdf file.
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Old 07-30-2013, 06:58 PM   #3
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Off season furnace question Rheem


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Originally Posted by yuri View Post
not sure about that Rheem but with Lennox they have the airflow at the different dip switch settings in the install manual. they will give it to you but you must do a delta T heat rise temp to make sure it is not overheating. if not contact Rheem and I am sure they have in for their dealers or can get it for you in a pdf file.
Thanks yes reading in the book states "adj these switches 1 and 2 can vary the airflow to give a temp rise at mid point........."

I just wanted to make sure I understood that there would be less cfm, but warmer air out of the vents.
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Old 07-30-2013, 07:51 PM   #4
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Off season furnace question Rheem


Should Bee as the gas pressure/firing rate stays the same. You need to check the temp rise or it will blow the limit control and possibly damage the heat exchanger.
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