Additional Air Conditioning Services:

A/C Unit Guard:

Protect your Investment!

All over America people are getting their air conditioning systems stolen for the copper. You need to protect your investment with a cage.

These thieves are steeling your air conditioning units and maybe making $30 – $60 dollars for the copper value and this is costing you $2,000.00 or more to have your system replaced. Protect your investment and have Kap Air and Heat install an AC Guard today.

A/C Unit Guard installation process:

Replacement Refrigerant:

Refrigerant
Another change you need to be aware of is the phase out of R22, the refrigerant most commonly used in today’s air conditioners and heat pumps. By 2010, all new air conditioners and heat pumps will be required to use “environmentally sound” refrigerant, such as R410A. This phase out has been mandated in an effort to help protect the earth’s ozone layer.

We’ve seen this before. In the late 1980’s, environmental concerns led to a total phase out of R12 in automotive air conditioners. If you owned a vehicle during that time, you may have experienced firsthand the rapidly rising costs of R12 or the expense of upgrading to newer technology. By making the change to R410A refrigerant now, you can protect yourself from the potentially higher future costs of servicing an air conditioner or heat pump that uses R22. They will produce R-22 until 2020 but as the gas is gradually phased out it may increase the costs accordingly.

Refrigerant Replacement
So make sure if you have a new system installed you are getting your copper lines cleaned or changed out because R22 oil does not make blend with the new R410A oil. With not cleaning your refrigerant lines with R11 flush you will have compressor failure or thermal expansion valve problems (TXV). MAKE SURE YOUR refrigerant lines are CLEAN.

Manufactured Homes & Mobile Homes:

Service and installation of all manufactured home heating and air conditioning systems.

Compressor:

The heart of any air conditioning or refrigeration system is the compressor.

So make sure if you have a new system installed you are getting your copper lines cleaned or changed out because R22 oil does not make blend with the new R410A oil. With not cleaning your refrigerant lines with R11 flush you will have compressor failure or thermal expansion valve problems (TXV). MAKE SURE YOUR refrigerant lines are CLEAN.

Compressors usually work or they don’t with little in between.  The compressor on an air conditioner or heat pump is usually misunderstood. It is a pump driven by an electric motor it has valves, pistons or vanes and is constructed somewhat like an automotive engine. A scroll compressor uses a set of spirals and is more efficient because there are no reciprocating parts. You may also find rotary compressors which act like a vane pump.  Rotary compressors are not used very often in larger systems but are common with window units.  The compressors on a residential heat pump or air conditioner is usually hermetic that means the motor and the part that pumps is built into one box also called a can.

The electric motor is installed in the can so the refrigerant flows over the motor windings to cool it as it runs. The insulation of the motor windings is like any electric motor that it is covered with varnish that doesn’t react with the refrigerant unless it becomes acidic. Then the insulation gets eaten off the windings and the motor burns out. If you are lucky the circuit breaker or fuse will blow. If not then the motor will continue to run and ruin the refrigeration system. A system that is short of refrigerant (aka Freon) will overheat the motor a system that is overcharged can flood the compressor causing “liquid slugging”. A bad crankcase heater will also cause damage due to liquid. This is not as much a problem on smaller systems but will destroy larger units or systems with a lot of refrigerant charge.

When a hermetic compressor fails the only way to fix the system is to replace it. When it is replaced it is necessary to install filter dryers to clean up the system of moisture and acid that will be introduced from opening the system and left from the failure.

The motor in a compressor if not 3 phase is usually a capacitor start capacitor run type. It will have a start capacitor and a run capacitor. If the run capacitor fails the motor will not start and draw excessive current than it should and over heat (tripping) it’s internal protector (also known as an “overload”). If it doesn’t have a start capacitor it probably should, especially if it has problems starting under load.

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