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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 name plate which specifies the type of

refrigerant and the amount of charge in ounces.

Summary of Contents for K2NA4C3P21R

Page 1: ...UTION BEFORE INSTALLING AND USING THIS AIR CONDITIONER IT IS IMPORTANT THAT THIS MANUAL BE READ AND UNDERSTOOD THOROUGHLY KOOLTRONIC INC 30 Pennington Hopewell Road Pennington NJ 08534 609 466 3400 FA...

Page 2: ...ntroduction 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 enc...

Page 3: ...a horizontal position only This placement must be done a minimum of 5 minutes prior to operating in order to allow the compressor oil to drain to the compressor sump area CAUTION 3 Before operating t...

Page 4: ...ESSURE P S I G LOW HIGH MAX FUSE SIZE SERVICE AIR FILTERS REGULARLY ALLOW 5 MIN BEFORE RESTARTING AFTER SHUTDOWN UNAUTHORIZED SERVICE OR MODIFICATION VIOLATES WARRANTY ALL MOTORS ARE THERMALLY PROTECT...

Page 5: ...leased to the ambient air by the condenser impeller The heat removed through the evaporator coil is transferred by the compressed refrigerant to the condenser coil Ambient air is then passed through t...

Page 6: ...test for proper operation This will verify the shipping integrity of the system Please follow the steps below prior to installation CAUTION 1 The unit must sit in an upright position at a minimum roo...

Page 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...

Page 8: ...erence only and are subject to change 6 312 7 9 DIA HOLES 7 94 201 6 TYP 1 25 31 7 20 09 510 2 TYP 7 00 177 8 1 75 44 4 7 00 177 8 2 03 51 5 TYP 2 64 67 0 48 12 1 4 75 120 6 TYP 12 01 305 0 21 19 538...

Page 9: ...21R5 Part Part Number Part Number Part Number Compressor 0665 101 0665 107 0665 110 Compressor Impeller 0194 14 0194 15 0194 15 Condenser Impeller Capacitor 0452 06 0452 73 0452 73 Evaporator Fan 0265...

Page 10: ...RMAL CUTOUT T STAT 115 V 230 V TO CUSTOMER ALARM SYSTEM OPTIONAL TERMINAL BLOCK COOLING EFFECT DETECTOR BK T STAT SHORT CYCLE TIMER OPTIONAL SHORT CYCLE PROTECTOR OPTIONAL HEATER SPEED CONTROLLER COND...

Page 11: ...ld 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...

Page 12: ...e 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...

Page 13: ...lay Thermostat defective when applicable Failed Compressor Replace Compressor Ice on Evaporator Coil Insufficient Heat Load or Unit Contact Kooltronic Oversized for Application Failed Evaporator Blowe...

Page 14: ...14 This page intentionally left blank...

Page 15: ...is requested Original 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...

Page 16: ...and a NEMA 3R interface with the enclosure Visit us online at www kooltronic com E Mail sales kooltronic com Integrity NEMA 4 4X Air Conditioners and Heat Exchangers Only by Kooltronic Designed for a...

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