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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
What else can I help you with?
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
When are the outdoor unit called an evaporator?
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!
What are the maintenance requirements for an outdoor condenser unit?
The maintenance requirements for an outdoor condenser unit include regularly cleaning the unit, removing debris, checking for any damage, ensuring proper airflow, and scheduling professional inspections and tune-ups.
When should refrigerant be removed from the condenser outlet?
Refrigerant should be removed from the condenser outlet when:
What direction should the condenser fan blow in a car?
it should blow directly to the condenser
How do you change a condenser in a 2001 Kia Sephia?
To change a condenser in a 2001 Kia Sephia you need to disconnect the refrigerant lines and unbolting the condenser. Lift the condensers out and replace with the new one.
How do you replace ac condenser in a 03 Mitsubishi eclipse?
Unscrew radiator, should be two attachments connected to condenser. Unscrew them from the condenser and it should slide right out from in front of the radiator.
What is a contactor for a Central Air Unit?
The relay actuated by the thermostat which starts and stops the compressor and condenser fan in the outdoor unit.
How do you change condenser on 1992 DeVille?
I have a 1992 De Ville and the condenser is plugged. Is there a step by step over view of this project?
When changing the outside condensor should you change the air handler too?
When changing the outdoor condenser, it's often advisable to consider replacing the air handler as well, especially if it's aging or has compatibility issues with the new condenser. An old air handler may not efficiently work with a new, high-efficiency condenser, potentially reducing overall system performance. Additionally, replacing both units ensures better system compatibility and can improve energy efficiency and indoor comfort. Ultimately, it's best to consult with an HVAC professional to evaluate your specific situation.
How do you know what kind of freon outdoor central air units use?
check the condenser name plate. it will tell you the type of refrigerant.
