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6

 

VI. Pre-Installation Testing

 

Before mounting the air conditioner to the enclosure, 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 room temperature of 65

o

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 75

o

F.

  

 

4. Turn the electrical power on.  

 5. Verify that the evaporator blower or fan is running. 

 6. Condenser impeller should start immediately and after one (1) second, stop. 

 7. After three (3) to five (5) minutes the condenser impeller should start. 

 8. Verify that the condenser blower or fan 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 70

o

F when the 

room temperature is between 70

o

F and 80

o

F.    

 10. If ambient temperature is below 75

o

F, after fifteen (15) minutes the thermostat will shut off the 

compressor and the condenser impeller. 

  11. Turn off the electrical power and disconnect the air conditioner from the power source.  

 12. If any cover plug was removed to adjust the unit, be sure to replace it in order to maintain the integrity 

of the closed-loop airflow system.   

 

NOTE:

  Before shipment all Kooltronic Air Conditioners are subjected to a performance test. 

 

The air conditioner must be standing in its proper mounting position for a minimum of five (5) 

minutes prior to testing. Failure to follow this procedure will cause permanent damage to the 

compressor. To avoid compressor damage do not tip the unit more than 45

o

 from its proper 

mounting position.

Содержание K A6C4NPT33L Series

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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