A reciprocating compressor has pistons that move up and down inside a cylinder, creating a vacuum effect that draws in the refrigerant and compresses it into vapor. Reciprocating compressors are highly efficient and are the most common type found in residential air conditioners. Are the most efficient, least expensive to run, and dehumidifies best, but are the most costly to install and repair. Variable-Speed – Operates at any capacity, making automatic adjustments to maximize energy-efficiency and deliver precise temperatures.Two-stage units run more quietly and efficiently, produce more even temperatures, and dehumidifies better, but costs more than single-stage compressors to install and repair. Two-Stage – Has two speeds-full capacity on the high setting and 60-70% capacity on the low stage.Cheapest to install but are the least efficient and last the shortest due to frequent on/off cycles. Single-Stage – Has only one speed and runs at full capacity until the indoor temperature hits the set range.2-Stage AC Compressor StageĪC units require the same type of compressor the unit was initially manufactured with when replacing. A two-stage AC compressor has two speeds (full-capacity and 60-70% capacity) and are more efficient, better at dehumidifying, and cost less to run, but are more expensive. 2-Stage AC CompressorĪ single-stage AC compressor has one speed (full-capacity) and is the cheapest to install and repair. Many heat pumps use the same type of compressor as an AC unit. Heat pump compressors under warranty cost $600 to $1,200 to replace. Replacing a heat pump compressor costs $1,000 to $2,500 on average for parts and installation labor. Installing a whole new window AC unit costs $150 to $700, which is about the same as replacing the window AC compressor.Replacing a central air compressor or mini-split AC unit compressor costs $1,000 to $2,500 on average, including installation costs.Return to Top New AC Compressor Cost By Type New AC Compressor Cost Type When installing a new unit, the general rule is one ton of air conditioning capacity per 500 square feet or around 25 BTU's per square foot. One ton equals 12,000 BTU's (British Thermal Units).ĪC Compressor Size Calculator BTU (in thousands).The last two digits indicate the size in BTUs by thousand.Look for the model number printed on the label on the outdoor AC unit.To determine what size AC compressor is needed: View Pros AC Compressor Size CalculatorĪ home AC compressor can only be replaced with a compressor of the same size. Labor costs the same regardless of size, but parts and refrigerant costs increase with size.įind the right HVAC repair pro for your project. Replacing a 5-ton compressor costs $1,450 to $2,300 or about twice as much as a 2-ton unit. Residential air conditioner compressors cost $1,000 to $2,500 on average to install, depending on the size in tons. Return to Top AC Compressor Prices By Size Rates are lowest during off-peak months between mid-January and March or from late September to November. Season – Prices increase during the summer and winter when HVAC contractors are busiest. Central AC units work best when paired with the same compressor brand they were manufactured with or when matched with a generic or OEM compressor of the same type. Brand – AC compressor prices vary by brand.A freon refill costs $100 to $600, depending on if it's R22 or R410a refrigerant and the amount needed to top off the system. Refrigerant – The AC refrigerant requires refilling after replacing the compressor.Larger units are more expensive and require more refrigerant. Size – The size and cost of the AC compressor depends on the AC unit’s capacity in tons.Two-stage and variable-speed compressors are more efficient but are more expensive to replace. Type – Compressors come in single-stage, two-stage, and variable-speed models.If the compressor is out of warranty, it's typically more cost-effective to install a new AC unit. Warranty – Warranties typically cover all or most of the compressor's cost, but not the labor cost to install.Total costs to replace an AC compressor depend on the AC unit size in tons, compressor type and brand, refrigerant type, and warranty coverage. AC services cost $75 to $150 per hour for labor, depending on the region.Ĭost Factors To Replace Home AC Compressor The average labor cost to replace a home AC compressor is $600 to $1,200, regardless of compressor size. Compressor parts and installation labor each make up about 50% of the price. View Pros AC Compressor Replacement CostĪC compressor replacement costs $1,650 on average with a typical range between $1,000 and $2,500. Compare estimates from local AC repair pros.
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