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As a 34-year HVAC veteran, I usually recommend replacement of the condensing unit only when the compressor has failed(seized or burnt out). A properly maintained central air conditioning system should easily last 20-30+ years, so don't replace it early!
When a replacement is required, I will usually recommend a menu of options (at increasing cost): 1. Replace the failed compressor in the existing condensing unit
2. Replace the existing condensing unit only (where the replacement condenser has the same SEER rating as the original
3. Replace the condensing unit and the evaporator coil to upgrade the efficiency rating of the system
4. Replace the entire system (when converting from R-22 to R-410A refrigerant)
Many existing condensing units have an efficiency of 10 SEER or less. The minimum SEER rating of replacement condensing units is 13 SEER. If you only replace the outdoor unit, it will no longer match the lesser efficiency rating of the existing evaporator coil. Not only will this mismatch reduce overall efficiency, it will probably void the manufacturer's warranty.
R-22 equipment is being phased out. I do not recommend using existing tubing with new R-410A equipment, since it will contain moisture-laden mineral oil which will deteriorate the new synthetic oil which is compatible with R-410A.
The HVAC Veteran
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∙ 14y ago
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When a heat pump is in the cooling mode the heat is rejected through the Outdoor Fan or The Condenser Coil or The Evaporator Coil?
Condenser coil
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The outdoor coil is a condenser in the cooling mode and an evaporator in the heating mode.. (pg. 1077) -MAS
Condensor or condenser which is the correct one to use regarding the outdoor unit for an air conditioning system?
CondenSER is correct. CondenSOR is not a real word. Regards!
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I have a 1992 De Ville and the condenser is plugged. Is there a step by step over view of this project?
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What is a hot wall condenser as opposed to a dynamic condenser?
A hot wall condenser is a type of condenser where the walls are heated to promote the condensation of vapors. On the other hand, a dynamic condenser uses cooling water or air to remove heat from the vapors and condense them into liquid.
