Refrigerator Troubleshooting Diagram

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Category: Air Conditioning

Air Conditioning

Heat Pump Usage

Posted on February 7, 2011 by sam

In the last fifty years, several large office buildings and small college campuses have been constructed using water-to-water heat pumps. Their capacities were up to…

Air Conditioning

Special Requirements of Heat Pump Systems

Posted on February 7, 2011 by sam

The installation, maintenance, and operating efficiency of the heat pump system are like those of no other comfort system. A heat pump system requires the…

Air Conditioning

Heat Pump Outdoor Thermostat

Posted on February 7, 2011 by sam

In a straight heat pump or supplementary electric heater application, at least one outdoor thermostat is required to cycle the heaters as the outdoor temperature…

Air Conditioning

Heat Pump Defrost

Posted on February 7, 2011 by sam

During a defrost cycle, the heat pump switches from heating to cooling. To prevent cool air from being circulated when heating is needed, the control…

Air Conditioning

Heat Pump Operation

Posted on February 7, 2011 by sam

On mild temperature heating days, the heat pump handles all heating needs. When the outdoor temperature reaches the “balance point” of the home (heat loss…

Air Conditioning

Heat Pumps

Posted on February 7, 2011 by sam

A heat pump is a mechanical refrigeration system. It is arranged and controlled to utilize the condenser heat. The condenser heat is wasted or dissipated…

Air Conditioning

Absorption Operation Cycle

Posted on February 7, 2011 by sam

Figure 17-8 is a schematic diagram of an absorption cold generator. Note that the evaporator, absorber, concentrator, and condenser are enclosed in a single casing.…

Air Conditioning

Changeover Sequence for Hot Water Operation

Posted on February 7, 2011 by sam

When the thermostat is set for heating, the chilled water pump is off. The pressure from the hot water pump moves the check ball to…

Air Conditioning

Changeover Sequence for Chilled Water Operation

Posted on February 7, 2011 by sam

When the thermostat calls for cooling, the hot water pump is off. The chilled water pump moves water from the chiller tank and pumps it…

Air Conditioning

Chiller Heater

Posted on February 7, 2011 by sam

Some gas-fired units furnish cooling for the summer and heat for the winter. The user changes the functions simply by changing the settings of a…

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