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V. Principles of Operation

Kooltronic Air Conditioners are required when the equipment operating temperature must be kept near
or lower than the ambient room temperature, and/or the cabinet must be sealed from dust, fumes, oil,
corrosives and other contaminants. This Air Conditioner utilizes a “Closed-Loop Cooling System” to
ensure optimum performance of the installed components.

Closed-Loop cooling seals the electronics enclosure from hostile elements in the environment. Two
separate circulation systems are employed. The internal system cools and dehumidifies the air inside
the cabinet, totally isolating the sensitive electronics and other components from the environment. The
external system uses circulating ambient air or water to discharge the heat removed from the
electronics. The heat is dissipated from the enclosure by means of the vapor compression refrigeration
cycle. This takes place in a hermetically-sealed refrigeration system, utilizing either an air-cooled or
water-cooled condenser heat exchanger. The warm air inside the enclosure is drawn through the
evaporator coil where it is cooled, dehumidified and returned.

Any enclosure moisture accumulated on the evaporator coil is collected in the condensate tray and
released to the ambient air through the drain tube or the condensate evaporator.

The heat removed through the evaporator coil is transferred by the compressed refrigerant to the
condenser coil. Ambient air or water is then passed through the condenser coil, where it absorbs the
heat and is then discharged to the environment.

The cool air discharge temperature is regulated by the capacity control (hot gas bypass) valve. The
unit is equipped with a Low Temperature Thermostat to prevent over-cooling. In applications having
frequent voluntary heat load fluctuations, an optional Compressor Short Cycle Protector is recommended.

Summary of Contents for Traditional K2A4C10P47L

Page 1: ...IR CONDITIONER IT IS IMPORTANT THAT THIS MANUAL BE READ AND UNDERSTOOD THOROUGHLY KOOLTRONIC INC 30 Pennington Hopewell Road Pennington NJ 08534 609 466 3400 FAX 609 466 1114 www kooltronic com Find a...

Page 2: ...page of the Kooltronic website I Introduction Kooltronic Air Conditioners are designed to provide a cool dehumidified environment for your electronic components There are models to fit virtually all...

Page 3: ...prior to operating in order to allow the compressor oil to drain to the compressor sump area CAUTION 3 Before operating this unit all electrical wiring must be checked to assure the proper connection...

Page 4: ...y Use of incorrect type or amount of refrigerant will adversely affect performance and may damage the unit r Make sure that these parameters are met Failure to do so may result in permanent damage to...

Page 5: ...by means of the vapor compression refrigeration cycle This takes place in a hermetically sealed refrigeration system utilizing either an air cooled or water cooled condenser heat exchanger The warm ai...

Page 6: ...delayed until the system pressures rise 10 Operate the air conditioner for approximately ten 10 minutes During this period no unusual noise or vibration should be evident Both the evaporator and cond...

Page 7: ...stability and a tight seal High strength mounting screws are recommended Attach the brass drain pan fitting and drain hose supplied to the drain exit on the bottom or lower side panel of the Air Condi...

Page 8: ...ithin this area and equal or exceed size of cool air outlets FILTERED CONDENSER AIR INLET Ambient Air In CONDENSER OUTLET Warm Ambient Air Out COOL AIR OUTLET TO ENCLOSURE Drawings and Dimensions P47...

Page 9: ...145 150 155 G G G KA3C8P _ _R56 8000 115 50 115 50 60 17 0 19 0 145 150 155 G G G K2A4C8P _ _L 8000 125 50 230 200 60 50 13 0 145 150 155 G G G K2A4C8P _ _L5 8000 115 50 230 50 12 5 145 150 155 G G G...

Page 10: ...29 6015 00 129 6015 00 130 6015 00 130 Filter 12251F 12251F 12251F 12251F 8 000 to 12 000 BTU H KA3C_P47R KA3C_P47R56 K2A3C_P47L K2A3C_P47L5 KA3C_P52R KA3C_P52R56 K2A3C_P52L K2A3C_P52L5 KA3C_P59R KA3C...

Page 11: ...Continued operation under these conditions will cause damage shorten compressor life and void the warranty A Filter Removal and Service Kooltronic Air Conditioners feature an easily removable inlet f...

Page 12: ...valve fails it is strongly recommended that the Air Conditioner be returned to Kooltronic for service D Refrigerant Loss Kooltronic Air Conditioners are subjected to a series of tests to detect refri...

Page 13: ...ntrol Replace Thermostat or Relay Thermostat defective when applicable Failed Compressor Replace Compressor Ice on Evaporator Coil Insufficient Heat Load or Unit Contact Kooltronic Oversized for Appli...

Page 14: ...eceived by customer Number of parts to be returned Product description model and serial number Reason for return Action requested Contact name telephone FAX numbers and e mail address Pack unit in a s...

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