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IX. Trouble-Shooting

Each Kooltronic Air Conditioner is engineered for performance and built for reliability.
They are designed to require no routine maintenance other than the cleaning of ambient
air filters. If your air conditioner should require service, we have compiled a
trouble-shooting chart to assist your service personnel. If additional assistance is
required contact Kooltronic at 609 • 466-3400.

Problem

Cause

Solution

Unit not Cooling

No Power

Check Power Source and
Electrical Connections

Loss of Refrigerant

Locate and repair leak

Evaporator or Condenser

Replace Motor, Capacitor or

Blower not operating

entire Assembly

Filter clogged

Clean or replace Filter

Clogged Evaporator or

Clean Coil

Condenser Coil

Low Temperature Control

Lower setting until unit starts

(Thermostat) improperly set

Low Temperature Control

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 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
door opening

Excessive vibration

Defective Motor in Blower

Replace Motor

Defective Wheel in Blower

Replace Wheel

Compressor Loose

Tighten Mounting Bolts

Compressor Inoperative

Low line Voltage

Check Nameplate Voltage
against supply

Loss of Compressor Oil

Replace Compressor

Loss of Refrigerant

Locate and repair leak

Failed Compressor Capacitor

Replace Capacitor

Thermal Overload

Contact Kooltronic

Power interruptions

Allow Compressor time to reset

Refrigerant or Oil leaks

Crack or pin hole in tubing or

Replace tubing or rebraze joint

brazed joint

13

Summary of Contents for K2A3C8P24L

Page 1: ...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 P24 SERIES P28 SERIES P36 SERIES 900 031 00 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: ... 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 sizes and shapes of electronic 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 condition...

Page 3: ...s 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 name...

Page 4: ...s 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 LABORATOR...

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 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 ...

Page 6: ... blower will be 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 condenser fans or blowers should be delivering air through their respective discharge ports The cool discharged air should be less than 70 F when the room temperature is between 70 and 80 F...

Page 7: ...densate Evaporator The drain hoses fittings and Condensate Evaporator must be removed before dismounting the Air Conditioner as they will not support the weight of the Air Conditioner unit The external drain hose must not be elevated above the exit port Improper mounting will impede the flow of condensate and may cause internal malfunctions CAUTION Major Component Replacements P28 P36 P28 P36 P36 ...

Page 8: ...g should be located as high as possible within 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 À Á Ã 5 16 23 4 5 16 23 4 Drawings and Dimensions P28 P36 SERIES P24 SERIES Dimensions inches are for reference only and are subject to change MOUNTING PLAN 8 DIMENSIONS inches Model A B ...

Page 9: ...4000 120 50 115 100 60 50 14 2 90 90 110 G G KA4C4P_ _L 4000 125 50 115 100 60 50 12 0 90 90 110 G KA4C4P_ _L56 4000 120 50 115 50 60 14 2 90 90 110 G G KA4C4P_ _L56 4000 120 50 115 50 60 12 5 12 0 90 90 110 G K2A4C4P_ _L 4000 125 50 230 200 60 50 6 2 90 90 110 G G K2A4C4P_ _L 4000 125 50 230 200 60 50 5 9 5 8 90 90 110 G K2A4C4P_ _L5 4000 125 50 230 50 6 2 90 90 110 G G K2A4C4P_ _L5 4000 125 50 2...

Page 10: ...10 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 11: ...f 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 Lift the filter using the attached tab to clear the lower filter retainer Pull filter toward you and downward until the top of the filter clears the u...

Page 12: ...s 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 When it h...

Page 13: ...ontrol 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 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 continuous...

Page 14: ...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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