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Discussion Starter #1
Hi All,
I have a 5 year old Carrier 48VL-A package unit. I purchased the Carrier Edge TP-PRH-01 thermostat last week for it because I want to take advantage of the dehumidification feature of the multi speed blower fan. I live in SC so this is an important feature that my installer didn't mention at the time of installation.
The main settings I am concerned with are option #1 (I chose AC), option #4 ( I chose ON), option #19 (I have no clue what to choose). Here are links to the literature.
https://www.shareddocs.com/hvac/docs/1009/Public/0E/TP-PRHB-02SI.pdf
https://www.shareddocs.com/hvac/docs/1009/Public/02/SUP-CPECOMZR-04.pdf

Any experienced help would be greatly appreciated.
Thanks.
John
 

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1 would be A/C
4 would be off
19 would be dry contact.
 

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Discussion Starter #3
Thank you very much. I figured out #4 when the higher speed fan kicked in immediately when I turned on the heat; instead of delaying.
I'm guessing then that the blue wire is the dehumidifier circuit. It receives power at the DC2 terminal from the jumper between the R and DC1 terminals when dehumidify is commanded. Is this right?
 
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