background image

12

VIII. Maintenance

Kooltronic Air-Cooled Air Conditioners require routine cleaning of the condenser coil (if necessary) and the air
filters to assure unimpeded airflow through the condenser heat exchanger. It is not possible to recommend specific
condenser coil or filter cleaning intervals, since the level and the nature of airborne particulate matter differs widely
with each installation. It is generally sufficient to clean the condenser coil and/or the aluminum mesh filter when the
outer surfaces appear covered with a thin layer of dust, lint or other foreign matter. The condenser coil can be
washed or blown out with air, depending on the foreign matter involved (see below - 

Filter and condenser coil

service

). The aluminum mesh filter can be washed with warm water. Appropriate disposable replacement filters

are available from Kooltronic.

If routine condenser coil or filter service is neglected or delayed, the air conditioner will not perform at its design
capacity. The first indication of an excessively clogged condenser coil or air filter is usually a gradual increase of
temperature within the equipment cabinet. If operation is continued under these conditions, the compressor will be
shut off by the thermal overload device. The compressor will restart when its external temperature drops below the
protector threshold setting and the compressor will continue to cycle on and off. Continued operation under these
conditions will cause damage, shorten compressor life and void the warranty.

A. Filter and condenser coil service

The rear panel must be removed in order to clean the filters. After removal, the filters should be flushed
under warm running water with clean side up. If the accumulated dirt is oily, washing in a detergent bath
is recommended, followed by a warm water wash as above.

The exposed condenser coil must be cleaned by pressurized air or pressurized cleaning solution. Dirty
liquid will be removed through the condenser coil drain pan.

B. Blowers

The design life of the blowers used in all Kooltronic Air Conditioners is substantially in excess of 20,000
hours. All Kooltronic condenser and evaporator blowers are equipped with automatic-reset thermal
overload protectors.

CAUTION

If field replacement of a blower motor is necessary, most blower assemblies, including the mounting plate, are
readily removable. Each of the blower mounting plates is held to the air conditioner cabinet structure by screws
and nuts. For installation of the replacement blower, electrical connections may be broken at the terminal
block, or power leads may be cut and appropriately spliced together.

C. Compressor

All Kooltronic compressors are approved by UL and CSA, and require no maintenance. They are
hermetically sealed and charged at the factory, and equipped with automatic-reset thermal overload
protectors.

If the compressor fails, it is strongly recommended that the air conditioner be returned to Kooltronic for
service.

Before opening the air conditioner, disconnect all power.

Summary of Contents for K2A6C16NPT52L

Page 1: ...NT 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 900 034 12 1 19 CDR 20131 NPT SERI...

Page 2: ...model 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 virtuall...

Page 3: ...5 minutes 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...

Page 4: ...t 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 the unit ALL MOTO...

Page 5: ...ditions of low ambient temperature and low enclosure load the thermostat regulates the return air temperature from 75o F to 86o F The standard set point of the Low Temperature Thermostat is 75o F The...

Page 6: ...is running 9 Operate the air conditioner for approximately ten 10 minutes During this period no unusual noise or vibration should be evident Both the evaporator and condenser fans or blowers should be...

Page 7: ...tlets is essential for optimum performance of the air conditioner All externally mounted air conditioners are fully gasketed to ensure proper sealing This seal is necessary to maintain the integrity o...

Page 8: ...es mm are for reference only and are subject to change 2 06 52 3 17 4 3 2 60 66 0 2 1 1 2 4 3 J2 3 4 5 10 9 8 7 6 1 2 3 J1 CG RELAY CONTACTS N O 240 VAC 120 VAC TEMPERATURE SENSOR Mounting Holes 4 156...

Page 9: ...MOUNTING HOOKS 45 11 4 TYP 2 94 74 6 1 36 34 5 15 25 387 3 1 00 25 4 31 7 8 52 71 1338 8 37 37 949 1 10 02 254 5 14 13 358 9 10 45 265 4 56 14 2 DRAIN 18 62 472 9 1 45 36 83 12 25 311 1 2 50 63 5 1 0...

Page 10: ...52L Part Part Number Compressor 0665 404 Compressor Run Capacitor 0452 90 Condenser Blower Motor 0261 80 Condenser Motor Capacitor 0452 06 Evaporator Impeller 0194 108 Evaporator Impeller Capacitor 04...

Page 11: ...11 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 12: ...Continued operation under these conditions will cause damage shorten compressor life and void the warranty A Filter and condenser coil service The rear panel must be removed in order to clean the filt...

Page 13: ...running Low Line Voltage Check Nameplate Voltage against supply Voltage Compressor and Condenser Blower do not run Return temperature is Failed Compressor Check Compressor wire connections above set p...

Page 14: ...r Clean Coil difference between return and Coil clogged supply air is less than 10 F Evaporator Blower Condenser Loss of Refrigerant Locate and repair leak Blower and Compressor are running Ice on Eva...

Page 15: ...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...

Reviews: