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14

Problem

Cause

Solution

Unit not cooling. (Temperature

Failed Evaporator Blower.

Check Blower wire connections.

difference between return and

Check blower capacitor.

supply air is less than 10°F).

Replace Evaporator Blower.

Compressor and Condenser Blower
are running. Evaporator Blower does
not run.

Unit not cooling. (Temperature

Low Refrigerant charge.

Check discharge and suction pressure for

difference between return and

Refrigerant leak.

supply air is less than 10°F).

Failed Condenser Blower.

Check Blower wire connections.

Compressor and Evaporator Blower 

Check Blower Capacitor.

are running. Condenser Blower does

Replace Condenser Blower.

not run.

Failed Speed Controller.

Check Speed Controller Sensor.
Replace Speed Controller.

Unit not cooling. (Temperature

Condenser or Evaporator

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 Evaporator Coil.

Clean Evaporator Coil.
Check discharge and suction pressure for 
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 cycling more than

Short circuiting of air

Provide baffle in the enclosure separating A/C

10 cycles per hour.

between A/C discharge 

Outlet and inlet.

and inlet openings.

Excess vibration.

Defective motor in Blower.

Replace motor.

Defective wheel in Blower.

Replace wheel.

Bad Compressor.

Replace Compressor.

Содержание K2A6C16NPT52L

Страница 1: ...NT 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 12 1 19 CDR 20131 NPT SERI...

Страница 2: ...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 virtuall...

Страница 3: ...5 minutes 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...

Страница 4: ...t 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 MOTO...

Страница 5: ...ditions 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...

Страница 6: ...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...

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 o...

Страница 8: ...es mm are for reference only and 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...

Страница 9: ...MOUNTING HOOKS 45 11 4 TYP 2 94 74 6 1 36 34 5 15 25 387 3 1 00 25 4 31 7 8 52 71 1338 8 37 37 949 1 10 02 254 5 14 13 358 9 10 45 265 4 56 14 2 DRAIN 18 62 472 9 1 45 36 83 12 25 311 1 2 50 63 5 1 0...

Страница 10: ...52L Part Part Number Compressor 0665 404 Compressor Run Capacitor 0452 90 Condenser Blower Motor 0261 80 Condenser Motor Capacitor 0452 06 Evaporator Impeller 0194 108 Evaporator Impeller Capacitor 04...

Страница 11: ...11 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 12: ...Continued operation under these conditions will cause damage shorten compressor life and void the warranty A Filter and condenser coil service The rear panel must be removed in order to clean the filt...

Страница 13: ...running Low Line 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 p...

Страница 14: ...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...

Страница 15: ...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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