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Sorry, I never did post that model #. It is 10PJA4901.
Thanks again.

Thanks Doc, for your help. I have ordered a RXCPRXCT-CHL. This the part that my distributor said was for the 4 Ton WK unit that I have been dealing with. Does this look correct to you? I ask...

There is no sharp turns in the return plenum. It actually goes into the drop ceiling space and a 30 X 30 grill on the wall.
I don't see that as a problem, but I did wonder about the TXV. When I...

I should have mentioned the air flow situation. This AHU is a downflow with the duct in the crawl. We have 10 8" flex duct supplies coming off. The longest of these is 35' and the shortest is 5'. ...

Here are some of the details. I do not have model numbers with me at the moment, but I will give you as many details as I can and post the numbers later. It is a 10 Seer 4 ton HP, 4 Ton AHU...

I installed a 4 Ton Weather King heat pump and matching AHU. It was installed in July, so we set up the charge in the cooling mode. It worked great. I get a call in Febuary that the thing is not...