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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.

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 has been verified by a Certified

EPA Technician that a refrigerant shortage does exist, the leak must be repaired. Then the unit
may be evacuated and recharged in the field by a Certified EPA Technician only.

CAUTION

E. Relocation

If your Kooltronic Air Conditioner has to be moved to another location by truck, the following
precautions should be taken:

De-mount the air conditioner from the equipment, controller or enclosure.

Conform to the applicable provisions of PROCEDURE FOR PROPER PACKING AND SHIPMENT 
OF KOOLTRONIC AIR CONDITIONERS in this manual under 

Section III. "PRODUCT HANDLING."

Before opening the air conditioner, disconnect all power.

Refer to the data on the unit nameplate which specifies the type of

refrigerant and the amount of charge in ounces. 

Содержание K2NA4C3P21L

Страница 1: ...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 42 INTEGRITY SERIES K_NA4C3P21L Find additional information on this model at kooltronic com or use the Technical Documents QR code below Technical Documents ...

Страница 2: ...el 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 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 condit...

Страница 3: ...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 air conditioner nameplate for the corresponding voltage Do not exceed the maximum fuse size found on ...

Страница 4: ...correct 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 OUTDOOR USE COMPARTMENT ONLY NEMA EEMAC UL50 BY UNDERWRITERS LABORATORIES INC TYPE 1 SPECIAL PURPOSE AIR CONDITI...

Страница 5: ...moved through the evaporator coil is transferred by the compressed refrigerant to the condenser coil Ambient air is then passed through the condenser coil where it absorbs the heat and is then discharged to the environment This unit is equipped with a Low Temperature Thermostat to prevent the evaporator coil from freezing In conditions of low ambient temperature and low enclosure load the thermost...

Страница 6: ...m temperature of 65 F to allow the system to warm up This is particularly important during winter months 2 Refer to the nameplate for proper electrical voltage and current requirements Connect the power cord to a properly grounded and fused electrical supply leaving electrical power to the unit turned off 3 Note the factory thermostat setting which is 75o F 4 Turn the electrical power on 5 Verify ...

Страница 7: ...O THE OUTSIDE WALL OF THE CUSTOMER S ENCLOSURE BEFORE INSTALLING A C UNIT NOTE ENCLOSURE WALL TYP 3 PLACES 1 4 NUT CUSTOMER S ENCLOSURE TYP 3 PLACES BOLT 1 4 X 1 1 4 RUBBER WASHER MOUNTING PLATE WITH STUDS TOP SECTION OF A C UNIT BOTTOM SECTION OF A C UNIT RUBBER WASHER 1 4 NUT 1 4 NUT TIGHTEN NUT TO CLOSE GAP 1 It is recommended that a lift truck be used for installation 2 Attach the Mounting Pla...

Страница 8: ...nd are subject to change 6 312 7 9 DIA HOLES 7 33 186 3 2 16 54 8 20 10 510 5 1 69 43 0 2 09 53 0 3 07 78 0 46 11 8 4 75 120 6 TYP 11 91 302 6 21 26 540 0 12 47 316 8 COOL AIR TO ENCLOSURE HEATED AIR FROM ENCLOSURE CONDENSER AIR INLET Ambient Air In CONDENSER OUTLET Heated Ambient Air Out 2 Places 7 91 200 9 6 91 175 5 6 75 171 4 1 25 31 6 TYP FIGURE 1 MOUNTING PLAN Dimensions inches metric are fo...

Страница 9: ...NA4C3P21L K2NA4C3P21L5 Part Part Number Part Number Part Number Compressor 0665 101 0665 107 0665 110 Condenser Impeller 0194 14 0194 15 0194 15 Condenser Impeller Capacitor 0452 06 0452 73 0452 73 Evaporator Fan 0265 03 0265 06 0265 06 Filter 9501F 9501F 9501F Standard Features Condenser Impeller Speed Controller CFC Free refrigerant Filter Internal Corrosion Protection Low Temperature Control El...

Страница 10: ...old 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 Remove the two screws from the rear panel 2 Remove the rear panel from the unit 3 Remov...

Страница 11: ...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 has been verified by a Certified EPA Technician...

Страница 12: ...elay 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 Enclos...

Страница 13: ...inal customer Purchase Order number and date Date product was 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 positio...

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