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If the air conditioner is mounted to the cabinet door you must be sure that the door hinges
will support the additional weight of the air conditioner. Also be certain that when the door
is opened fully, the cabinet does not become unbalanced. The actual weight of the unit can

be found in the Technical Data.

VII. Specific Model Data

Mounting

Kooltronic Air Conditioners have been engineered to be installed easily. To avoid damaging your Air
Conditioner, please read the following information before installation.

Refer to page 10 for the location of all mounting holes and cutouts.

Make sure the cutouts don't interfere with components inside your cabinet.

Proper alignment of all air inlets and outlets 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 of the closed-loop system.

Use all existing mounting holes to insure stability and a tight seal.

Attach the supplied drain hose to the drain exit on the lower side panel of the air conditioner. 

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

Summary of Contents for Guardian K2NA4C3DP24L

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 900 039 85 12 21 CDR 20369 GUARDIAN...

Page 2: ...c 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 virtual...

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: ...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...

Page 5: ...n discharged to the environment When the Kooltronic Air Conditioner is properly sized it should operate constantly and maintain 75 F to 115 F enclosure temperature depending on the ambient temperature...

Page 6: ...the new set point value push the SET key again or wait 10 seconds HOW TO CHANGE A PARAMETER VALUE To change a parameter s value operate as follows 1 Enter the Programming mode by pressing the SET plu...

Page 7: ...p code 7 0 65535 rEL Software release 0 rSE Real set point 0 onF on off key enabling ES PbC Kind of probe ntc Adr Serial address 1 1 247 HES Differential for energy saving 0 F 54 54 rrd Regulation res...

Page 8: ...ate the air conditioner for approximately ten 10 minutes During this period the evaporator fan should operate continuously and no unusual noise or vibration should be evident The condenser blower is c...

Page 9: ...10 for the location of all mounting holes and cutouts Make sure the cutouts don t interfere with components inside your cabinet Proper alignment of all air inlets and outlets is essential for optimum...

Page 10: ...2 8 42 213 8 1 24 31 5 9 65 245 1 1 00 25 4 2 14 54 4 6 50 165 1 6 90 175 2 4 28 108 7 1 10 27 9 1 03 26 1 8 312 7 9 DIA HOLES 1 2 MOUNTING PLAN Dimensions inches mm are for reference only and are su...

Page 11: ...4 244 8 1 04 26 4 12 00 304 8 1 55 39 4 4 26 108 2 POWER CORD 68 17 0 PROGRAMMABLE THERMOSTAT TEMPERATURE ALARM TERMINAL BLOCK Drawings and Dimensions con t Dimensions inches mm are for reference only...

Page 12: ...able Thermostat Six Foot 1 8m minimum 3 Wire Power Cord Stainless Steel Shell NEMA 4X models UL CUL Listed GuardianX NEMA 4X model offered with these additional features NEMA 4X Rating Maintained UL50...

Page 13: ...d operation under these conditions will cause damage shorten compressor life and void the warranty A Filter and condenser coil service The filter holder must be removed in order to clean the filters A...

Page 14: ...ine 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 point plus dif...

Page 15: ...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 16: ...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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