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VIII. Maintenance

Kooltronic Water-Cooled Air Conditioners require no maintenance. Air-Cooled Air
Conditioners are designed to require only the routine cleaning of air filters to assure
unimpeded air flow through the condenser heat exchanger. It is not possible to
recommend specific filter cleaning intervals since the level and the nature of airborne
particulate matter differs widely with each installation. It is generally sufficient to remove
and wash the reusable aluminum mesh air filters when the outer surfaces of these filters
appear covered with a thin layer of dust or lint. Filter recoating adhesive is recommended.
Appropriate disposable filters are available from Kooltronic.

If filter service is neglected or delayed, the air conditioner will not perform at its design
capacity. The first indication of excessively clogged air filters 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 Removal and Service

Kooltronic Air Conditioners feature an easily removable inlet filter to facilitate
necessary cleaning.

CAUTION

1) Loosen the screw on the bottom of the filter holder.

2) Push the filter holder forward and move it down.

3) Remove the filter from the filter holder.

4) After removal, the filters should be flushed under warm running water with

the clean side up, driving contaminants out the dirty side of the filter. If the
accumulated dirt is oily, washing in a detergent bath is recommended, followed
by a warm water rinse as above.

5) The filters may be sprayed with 

Kooltronic A-16 Filter Recoating Adhesive

to

trap fine airborne contaminants, or they may simply be dried and reinstalled as
strainer type filters. 

Recoating is recommended for best results.

6) Reinstall the filter: Insert the filter inside the filter holder, push the filter holder forward,

move it up into place and replace the screw on the bottom of the filter holder.

Do not operate the Air Conditioner for extended periods of time with the

filter removed. The condenser coil may become clogged with dust or

lint from the air entering the face. A clogged condenser coil is not

readily detected and will give the same reaction as a clogged filter. A

clean filter is the best protection.

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Summary of Contents for ADVANTAGE RP28 Series

Page 1: ...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 900 039 37 1 19 CDR 20131 Find additional information on this model at kooltronic com or use the Technical Documents QR code below Technical Documents ...

Page 2: ...ge 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 sizes and shapes of electronics enclosures in capacities ranging from 1 000 to 30 000 BTU H Our closed loop design also ensures that your components will not be exposed to hot dirty operating conditions ...

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 to the correct power source Minimum circuit ampacity should be at least 125 of the amperage found on the nameplate for the corresponding voltage Do not exceed the maximum fuse size found on the namepl...

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 the unit ALL MOTORS ARE THERMALLY PROTECTED VIOLATES WARRANTY UNAUTHORIZED SERVICE OR MODIFICATION SERVICE AIR FILTER REGULARLY OUTDOOR USE COMPARTMENT ONLY NEMA EEMAC UL50 BY UNDERWRITERS LABORATORIE...

Page 5: ...ed and returned Any enclosure moisture accumulated on the evaporator coil is collected and evaporated in the condensate evaporator tray and released to the ambient air by the condenser blower If latent heat exceeds 25 of the total cooling capacity excess condensate is released to the ambient through the drain tube The heat removed through the evaporator coil is transferred by the compressed refrig...

Page 6: ...ayed start of six 6 minutes from the time power is applied to the unit 8 Verify that the condenser blower or fan is running Note the start of the condenser fan or blower will be delayed until the system pressures rise 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 sh...

Page 7: ...n nuts securely 5 Route the power cord through the top cut out in your cabinet Mount the unit to the M TAB by sliding the slots located on the front panel on the hooks of the M TAB 6 Tighten two screws on the bottom of the unit and seal the unit against the enclosure 7 Attach overflow drain hose supplied to the drain exit in bottom of the unit CAUTION If the Air Conditioner is mounted to the cabin...

Page 8: ...3 4 Drawings and Dimensions RP28 SERIES 8 Dimensions inches mm are for reference only and are subject to change GA00356A Rev A FILTERED CONDENSER AIR INLET Ambient Air In CONDENSER OUTLET Warm Ambient Air Out WARM AIR RETURN FROM ENCLOSURE COOL AIR OUTLET TO ENCLOSURE 1 2 3 4 ...

Page 9: ...A4C_RP28R K2A4C_RP28R Parts Part Number Part Number Compressor 0665 116 0665 107 Condenser Blower Motor 0261 08 0261 54 Evaporator Blower Motor 0265 03 0265 06 Filter 7006F 7006F Standard Features Built in Condensate Evaporator CFC Free Refrigerant Crankcase Compressor Heater Digital Temperature Display Filter Head Pressure Control Switch Low Temperature Control Thermostat NEMA 12 3R Ratings Maint...

Page 10: ...nd off 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 filter to facilitate necessary cleaning CAUTION 1 Loosen the screw on the bottom of the filter holder 2 Push the filter holder forward and move it down 3 Remove the filter from the filter holder ...

Page 11: ... bypass 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 refrigerant leaks during and after manufacture It is possible that shipping or other damage or microscopic leaks over a long period may result in the need for replenishment of refrigerant charge Whe...

Page 12: ... applicable Failed Compressor Replace Compressor Ice on Evaporator Coil Insufficient Heat Load or Unit Contact Kooltronic Oversized for Application Failed Evaporator Blower Replace Evaporator Blower Motor or Assembly Clogged Evaporator Coil Clean Coil Condensate draining Enclosure not properly sealed Check and seal all openings continuously Excessive opening of Enclosure Eliminate the frequency of...

Page 13: ...received 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 suitable container for shipment preferably the original packaging if available All Air Conditioners must be returned in an upright position properly secured to a pallet Improper packaging may void war...

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