So This Is Christmas

Merry Christmas is such an infectious feeling I like to feel that way all year around.

So if you are visiting just before Christmas, just after Christmas or even here on Christmas day I am sure you will find something of interest for you and in the spirit of Christmas.

It may be said that Christmas is no longer a celebration but this must be spoken by people that have never had trouble closing their eyes on Christmas Eve in an expectation of what maybe left for them on the carpet under the tree.

I continue to look forward to the surprise on my Grandchild's faces to this day at Christmas events.

Merry Christmas - Merry Christmas - Merry Christmas

Sunday, March 31, 2013

Eight Major Air conditioning Parts and the way They Work

By Ian Parker


Here's the list of 8 major a/c parts and explanation of their key operation in each and every a/c system.

1. air conditioning or heat pump compressor which generally compresses low pressure refrigerant gas into a high pressure, warm temperature air. Usually the compressor is in the backyard part of an air conditioning or heat pump device. The a/c or heat pump compressor device is actually a very high pressure pump driven by an electric motor. The air conditioning compressor is often packaged in the backyard compressor or condenser device.

2. A condenser or condensing item: often a condensing coil located inside which warm temperature very high pressure refrigerant gas flows, and over which a fan delivers air to chill the refrigerant gas back into a liquid state (for that reason converting high temperature from the refrigerant gas into the air being exaggerated via the fan). The condenser device is in fact a coil of finned tubing and a fan to move air across the coil. It is usual that the condenser device is contained in the backyard segment of an air conditioning unit, often packaged alongside the compressor electric motor mentioned above

3. A metering equipment which presents liquid refrigerant into an evaporator coil. The metering appliance can be simply a slim portion of tubing or it may be a bit more state-of-the-art thermostatic expansion valve consisting of a temperature sensing control which can open and shut the unit against refrigerant flow.

4. An evaporator coil or cooling coil: often the cooling coil is a portion of finned tubing (it seems just like a car radiator) within which liquid refrigerant is metered and permitted to evaporate from liquid to gas state inside the coil. This state change of the refrigerant, from liquid to gas, assimilates hot temperature, cooling the evaporator coil surface therefore cooling interior air blown along the cooling coil. It is usual that the cooling coil is placed inside the air handler.

5. An air handler as well as blower element that provides a fan to blow building air across or through the evaporator coil. The air handler blower fan device moves building air across the evaporator coil surface in an effort to condition building air by cooling it.

6. A duct structure which redirects heated or cooled air from the air handler in to the bedroom or office space, and which takes air from the living space and returns it onto the cooling device air handler.

7. Heat Pump Systems utilise the very same components like noted above, with the addition of a reversing valve that in simple terms lets the machine to work backwards in winter. And so in air conditioning mode the heat pump is shifting hot temperature from inside the building to outdoor whilst in warming mode the heat pump is moving heat from outdoor air into the building interior.

8. Air conditioner controls including a room thermostat, automatic switches, fuses or electrical circuit breakers, condensate controlling part, and air filter systems.




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