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| I have an install quote to replace my failing 4 ton heat pump with a Rheem system. The proposed condenser/air handler match is a 15PJL48A01 condenser with a RHLLHM4821JA air handler. Rheem's web site shows this condenser should be matched to a RHLLHM6024 air handler (from the AHRI performance data table). The confusion I have comes from the "48" designation in the smaller A/H which I would think would match with the 48k btu condenser unit, why would Rheem specify a 60k btu A/H to match up to a 48k btu condenser? I do want the system to deliver the 15 SEER rating. I am in Jacksonville, Fl if the region makes any difference.
Thanks for the education. |
Follow-Up Postings:
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- Posted by veesubotee (My Page) on Wed, Jul 25, 12 at 14:57
| The smaller AH may also be a match, but may deliver less than 15 SEER. If you live in a high humidity area, the smaller unit (if a match) will be better for reducing humidity, assuming it is a correct size for your property. SEER is a 'seasonal' value, which may not be realized due to limitations of the installation. EER if known, is a more meaningful value. V |
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- Posted by tigerdunes (My Page) on Wed, Jul 25, 12 at 15:45
| Weed Unless I overlooked it, the smaller coil is not an AHRI match, the larger coil is a match and has a 15 SEER rating but only an average 8.50 HSPF heating efficiency. While the air handler is a high eff model, it s not var speed (RHKL) which would be better for dehumidification in AC cooling. This upgrade is worth I personally would consider a step up in condenser selection as well. IMO |
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- Posted by weed_cutter (My Page) on Wed, Jul 25, 12 at 16:06
| Thanks for the reply. EER for the system with the A/H specified by Rheem is 12.5. I spoke with Rheem and their explaination for no certification with the smaller A/H is that it hasn't been tested by the AHRI. Strange thing is that another model 4 ton condenser was tested with that A/H, go figure. The contractor said the quote was an oversite and is going to correct and resend. I just want to make sure I am getting the efficiency promised. |
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- Posted by weed_cutter (My Page) on Wed, Jul 25, 12 at 16:17
| Tiger, I looked really hard at the Prestige line but decided against it for a couple of reasons. My experience has been that often less bells and whistles is more reliable. Secondly, with my wife whom I love dearly, I don't even know why we have a thermostat. We could just hard wire the system "ON". |
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- Posted by tigerdunes (My Page) on Wed, Jul 25, 12 at 18:04
| Weed Just providing you options. You asked for education and opinions and I provided it. Regardless whether you upgrade air handler and/or outside condenser, I would never sell or recommend a system that was not an AHRI match. IMO |
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- Posted by weed_cutter (My Page) on Wed, Jul 25, 12 at 21:57
| Tiger, I do value your opinion and thank you much. Oddly the Prestige systems had an edge on the heating output but the Value system had a slight edge on cooling. Value system = 46500 btu cooling vs Prestige = 45500 btu. Heating Prestige = 45500 vs Value = 41500. |
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- Posted by countryboymo (My Page) on Wed, Jul 25, 12 at 23:34
| I wanted the RHKL but somehow in everything else that was going on it got missed and I ended up with the RHLL I think it is which has the X13 motor but not variable. I am still very happy with it but the variable speed would probably be a touch quieter and a little better humidity control. It is still a half a ton smaller than the builders grade system it replaced and it missed the set temp by 1-2 degrees only when it is 104+ outside. If you get a match with good numbers and variable speed you will be very satisfied. |
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