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General Discussion
Air Conditioner...Rheem vs Trane vs ????
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<blockquote data-quote="jayphizzle" data-source="post: 714916" data-attributes="member: 2032"><p>JD there are a few things that can cause what you are experiencing. Depending on the style of compressor (reciprocating or scroll) it could have inefficient valves if a recip. Thus causing less refrigerant pumping capacity. The coils (indoor and outdoor) may need a thorough cleaning. If they aren't transferring heat properly it will DEFINITELY show up in capacity loss. Could be a refrigerant issue. If you really want to quiz your Goodman guy, or any A/C guy, ask for these readings. </p><p></p><p>1. Suction Pressure</p><p>2. Discharge Pressure</p><p>3. Superheat</p><p>4. Subcooling</p><p>5. Return Air Temp</p><p>6. Supply Air Temp</p><p>7. Compressor RLA v FLA (amp draw to determine pumping capacity)</p><p></p><p> If he can give you these readings, you can troubleshoot most any issue with the system and determine if the problem is air or refrigerant related. When the system was new, it was capable of say 36,000 btu/h @ 95 deg ambient temp (for a 3 ton). If all the coils are transferring heat properly and the refrigerant is flowing properly it should still be capable of doing that. Refrigerant doesn't go bad or reduce its efficiency. It could also be other factors like more heat loss through insulation, or attic leak, you know, something other than unit capacity. He may very well be exactly right on the unit, but without those readings there is no way that he actually knows. Just my .02. I do this for a living and have been in the business for 20 plus years. I run the service department for a commercial HVAC company in Montgomery. I've seen most of what is out there, and believe me when I say that the reason MOST people like Goodman is the cost and getting to install them. True there are some satisfied customers out there and those units were most likely installed by someone who knew what was going on. All Goodman reps I've ever dealt with will sell to anybody. This puts Goodman in bed with people who are installing them without a clue of what they are doing, just collecting a check, then the brand name suffers. They do enough business that they don't really care about reputation because if the price is right, they'll always have business. Another little tidbit, their marketing used to consist of "American owned and Operated". They may still use that but Goodman was acquired by Daikin a few years ago. They are now Japanese owned. I do think that they are still produced in Houston,Tx though.</p></blockquote><p></p>
[QUOTE="jayphizzle, post: 714916, member: 2032"] JD there are a few things that can cause what you are experiencing. Depending on the style of compressor (reciprocating or scroll) it could have inefficient valves if a recip. Thus causing less refrigerant pumping capacity. The coils (indoor and outdoor) may need a thorough cleaning. If they aren't transferring heat properly it will DEFINITELY show up in capacity loss. Could be a refrigerant issue. If you really want to quiz your Goodman guy, or any A/C guy, ask for these readings. 1. Suction Pressure 2. Discharge Pressure 3. Superheat 4. Subcooling 5. Return Air Temp 6. Supply Air Temp 7. Compressor RLA v FLA (amp draw to determine pumping capacity) If he can give you these readings, you can troubleshoot most any issue with the system and determine if the problem is air or refrigerant related. When the system was new, it was capable of say 36,000 btu/h @ 95 deg ambient temp (for a 3 ton). If all the coils are transferring heat properly and the refrigerant is flowing properly it should still be capable of doing that. Refrigerant doesn't go bad or reduce its efficiency. It could also be other factors like more heat loss through insulation, or attic leak, you know, something other than unit capacity. He may very well be exactly right on the unit, but without those readings there is no way that he actually knows. Just my .02. I do this for a living and have been in the business for 20 plus years. I run the service department for a commercial HVAC company in Montgomery. I've seen most of what is out there, and believe me when I say that the reason MOST people like Goodman is the cost and getting to install them. True there are some satisfied customers out there and those units were most likely installed by someone who knew what was going on. All Goodman reps I've ever dealt with will sell to anybody. This puts Goodman in bed with people who are installing them without a clue of what they are doing, just collecting a check, then the brand name suffers. They do enough business that they don't really care about reputation because if the price is right, they'll always have business. Another little tidbit, their marketing used to consist of "American owned and Operated". They may still use that but Goodman was acquired by Daikin a few years ago. They are now Japanese owned. I do think that they are still produced in Houston,Tx though. [/QUOTE]
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