CSRU2 - Hardstart Device 3-1/2-5 Ton


CSRU2 - Hardstart Device 3-1/2-5 Ton

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Model #CSRU2
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Comfort CSRU2 - Hardstart Device 3-1/2-5 Ton

% Increase In Torque    500%
Amps    35
Application    3.5, 4-5 Ton Air Conditioners
Brand    5-2-1® Compressor Saver®
Capacitor MFD µF    189-227
Country Of Origin    USA
Cycle/Hertz    60 Hz
Drop Out Voltage    40-105 VAC
Evaporating Temperature    -40°F to 10°F (-40°C to -12.22°C)
Features    5-2-1 Method is approved by all major Compressor Manufacturers
For Use With    1 - 5 HP
Maximum Coil Voltage    440 VAC
Phase    Single
Pick Up Voltage    180-195 VAC
Prop 65    No
Rated Load Amps    35
Relay Type    Potential
Type    Device
UL Recognized    Yes
UPC Barcode    854046521353
Voltage    208-240 VAC

A 5-2-1 Compressor Saver® (aka Hard Start Kit) significantly reduces the amount of time your AC Compressor takes to Start. Air conditioners with the 5-2-1 Compressor Saver® typically start in 30-50% less time than air conditioners without the product.

This is important because the compressor on your air conditioner consumes more power on start up than any other device in your home. Start up is the hardest time in the life of any type of electrical equipment. Ever notice that light bulbs almost always burn out when you first turn them on and not while they are on This is due to the huge current that rushes in when a switch is thrown and power is first applied.

The heat that accompanies the in-rush current can damage vital electrical components - the air conditioner compressor, the air conditioner run capacitor and contacts. An ac compressor may consume 45,000 watts of power while the motor is trying to start - TEN times more power than it uses while running. By comparison, the large burner on an electric stove only consumes approximately 5,000 watts on high.

An air conditioner can start up more than 6,000 times in a single air conditioning season. With a 5-2-1 Compressor Saver® you will reduce ac repairs and the need for air conditioning service.

Some top-of-the-line air conditioners come from the factory with 5-2-1 technology built in. Now you can have a 5-2-1 Compressor Saver® installed in your existing ac unit by a professional.

The cost of a 5-2-1 Compressor Saver® is a fraction of the cost of replacing an ac compressor damaged by hard starts. It could add years to the life of your compressor and other electrical components associated with your a/c system.


Minimum Purchase: 1 unit
Manufacturer Part Number CSRU2
Manufacturer Carrier

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