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Find additional information on this 
model at kooltronic.com, or use the 
Technical Documents QR code 
below.

Technical 

Documents

Keep This  Manual 

With Air Conditioner

AIR CONDITIONER 

OPERATOR'S MANUAL

CAUTION

 

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 

FAX: 609 • 466-1114 

www.kooltronic.com

900-039-22 (12/21)
(CDR: 20369)

TRIMLINE NP28 SERIES 

KA4C4NP28L 

with Serial Numbers up to and including L16A3713  

K2A4C4NP28L 

with Serial Numbers up to and including E16A1554

Summary of Contents for E16A1554

Page 1: ...ION 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 FAX...

Page 2: ...age 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 si...

Page 3: ...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...

Page 4: ...ect 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 MO...

Page 5: ...ure accumulated on the evaporator coil is collected in the condensate tray and released to the ambient air through the drain tube or the condensate evaporator The heat removed through the evaporator c...

Page 6: ...be delayed until the system pressures rise 10 Operate the air conditioner for approximately ten 10 minutes During this period no unusual noise or vibration should be evident Both the evaporator and co...

Page 7: ...r cord through the top cut out in your cabinet Mount the unit to the M TAB by sliding the 4 studs on the side panel into the 4 slots on the M TAB After unit is in place tighten 2 screws at bottom of u...

Page 8: ...INLET Ambient Air In NP28 only CONDENSER OUTLET Warm Ambient Air Out NP28 only WARM AIR RETURN FROM ENCLOSURE COOL AIR OUTLET TO ENCLOSURE Drawings and Dimensions NP28 SERIES Other drain outlets are...

Page 9: ...5 50 60 13 0 85 K2A4C3NP28L 3000 120 50 230 200 60 50 6 0 85 K2A4C3NP28L5 3000 125 50 230 50 6 5 85 KA4C4NP28L 4000 125 50 115 100 60 50 13 0 12 0 85 KA4C4NP28L56 4000 125 50 115 50 60 13 0 85 K2A4C4N...

Page 10: ...nd 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 A...

Page 11: ...pass valve 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 r...

Page 12: ...Control Replace Thermostat or Relay Thermostat defective when applicable Failed Compressor Replace Compressor Ice on Evaporator Coil Insufficient Heat Load or Unit Contact Kooltronic Oversized for Ap...

Page 13: ...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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