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Technical Data

KA6C4NPT33L           4000                 3200              131/-20            115             60

                

8.3                       71 

K2A6C4NPT33L         4000                 3200              125/-20            230             60

                

3.7                      71 

K2A6C4NPT33L         4000                 3200              123/-20            208             60

                

4.0                      71 

                                                                                Ambient                                              Running         Approximate 
                                  BTU/H             BTU/H           Temp. °F                                                Amps                Weight 

Model                      Capacity        95°F/95°F        Max./Min.         Volts            Hz         131°F/131°F             (lbs.)

Major Component Replacements 
 

                                                                   KA6C4NPT33L                         K2A6C4NPT33L 

Part                                                              Part Number                              Part Number 

 

Compressor                                       0665-411/0665-414                 0665-419 
Compressor Run Capacitor               0452-93/0452/95                     0452-12/0452-14 
Condenser Blower Motor                   0194-76                                   0194-101 
Condenser Motor Capacitor                                                              0452-73 
Evaporator Impeller                           0194-92                                   0194-93 
Evaporator Impeller Capacitor           0452-05                                   0452-73 
Condenser Coil                                  0666-32                                   0666-32 
Evaporator Coil                                  0666-32                                   0666-32 
Filter                                                   7131F                                      7131F 

Standard Features 

Built-in Condensate Evaporator 
Condenser Impeller Controller 
Filter 
High Pressure Protector 
Low Temperature Control Thermostat 
Mounts Internally or Externally 
NEMA 12 & 3R Ratings Maintained (UL50) 
UL/CUL Listed 
Zero ODP Refrigerant

Accessories and Options 

Compressor Short Cycle Protector 
Enclosure Heater 
Filter (for external mount only) 
Internal Corrosion Protection 
Remote Thermostat Relay 
Replacement Filters  
Special controls or indicators 
Special materials or finishes 
Special motors, line cords or connectors 
Stainless or Aluminum Shell 
Temperature Alarm

Summary of Contents for K A6C4NPT33L Series

Page 1: ...ANT 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 900 034 13 12 21 CDR 20369 NPT SERIES K_A6C4NPT33L Find additional information on this model at kooltronic com or use the Technical Documents QR code below Technical Documents ...

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 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 c...

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: ...e 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 COMPARTMENT ONLY NEMA EEMAC UL50 BY UNDERWRITERS LABORATORIES INC TYPE 1 SPECIAL PURPOSE AIR CONDITIONER EQUIPMENT TYPE 3R ...

Page 5: ...or coil from freezing In conditions of low ambient temperature and low enclosure load the thermostat regulates the return air temperature from 75o F to 86o F The standard set point of the Low Temperature Thermostat is 75o F The set point can be changed to 70o F or to 79o F by changing the location of the thermostat jumper See illustration on page 8 The Low Temperature Thermostat has a test start r...

Page 6: ...an is running 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 should be delivering air through their respective discharge ports The cool air discharged should be less than 70o F when the room temperature is between 70o F and 80o F 10 If ambient temperature is below 75...

Page 7: ...tlets 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 Hang air conditioner onto the enclosure Secure the air conditioner to the enclosure using the supplied hardware Use all existing mounting holes to insure stability and a tight...

Page 8: ...d are subject to change 2 06 52 3 17 4 3 2 60 66 0 2 1 1 2 4 3 J2 3 4 5 10 9 8 7 6 1 2 3 J1 CG RELAY CONTACTS N O 240 VAC 120 VAC TEMPERATURE SENSOR Mounting Holes 4 156 3 9 DIA ADJUSTING PINS 3 2 1 4 70ºF Connect 1 and 2 75ºF Connect 1 and 3 79ºF Connect 1 and 4 Thermostat Jumper ELECTRONIC THERMOSTAT CONTROL Electronic Thermostat Control Dimensions inches mm are for reference only and are subjec...

Page 9: ...OWER CORD 9 58 243 3 32 83 833 8 7 07 179 5 TYP 2 57 65 2 TYP 57 14 4 1 97 50 0 TYP 44 11 1 12 27 311 6 7 24 183 8 5 93 150 6 11 60 294 6 33 8 3 FILTER P N 7131F DRAIN 3 3 4 2 2 1 K_A6C4NPT33L Dimensions inches mm are for reference only and are subject to change GA200533A Drawings and Dimensions FILTERED CONDENSER AIR INLET Ambient Air In CONDENSER OUTLET Warm Ambient Air Out WARM AIR RETURN FROM ...

Page 10: ...or Impeller 0194 92 0194 93 Evaporator Impeller Capacitor 0452 05 0452 73 Condenser Coil 0666 32 0666 32 Evaporator Coil 0666 32 0666 32 Filter 7131F 7131F Standard Features Built in Condensate Evaporator Condenser Impeller Controller Filter High Pressure Protector Low Temperature Control Thermostat Mounts Internally or Externally NEMA 12 3R Ratings Maintained UL50 UL CUL Listed Zero ODP Refrigera...

Page 11: ...e 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 CAUTION A Filter Removal and Service Remove the screw from the filter holder Remove the filter from the filter holder After removal flush filter under warm running water with the clean side up If accumulated di...

Page 12: ...g 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 EPATechnician 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 Reloc...

Page 13: ...Refrigerant leak Check for any obstruction of Evaporator airflow Check and seal all openings Excessive condensate Eliminate the frequency of door openings draining and loss of A C sensible cooling performance Unit overcooling Failed Thermostat Check Thermostat wire connections Evaporator Blower Condenser Replace Thermostat Blower and Compressor are running Failed Relay Replace Relay Compressor cyc...

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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