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TRIMLINE
NP33 SERIES
Keep This Manual
With Air Conditioner
AIR CONDITIONER
OPERATOR'S MANUAL
CAUTION
KOOLTRONIC, INC.
30 Pennington-Hopewell Road
BEFORE INSTALLING AND
Pennington, NJ 08534
USING THIS AIR CONDITIONER,
609 • 466-3400
IT IS IMPORTANT THAT THIS
MANUAL BE READ AND
FAX: 609 • 466-1114
UNDERSTOOD THOROUGHLY
www.kooltronic.com
900-039-07

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  • Page 1 TRIMLINE NP33 SERIES Keep This Manual With Air Conditioner AIR CONDITIONER OPERATOR'S MANUAL CAUTION KOOLTRONIC, INC. 30 Pennington-Hopewell Road BEFORE INSTALLING AND Pennington, NJ 08534 USING THIS AIR CONDITIONER, 609 • 466-3400 IT IS IMPORTANT THAT THIS MANUAL BE READ AND FAX: 609 •...
  • Page 2: Table Of Contents

    Warranty 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 60,000 BTU/H. Our "closed-loop"...
  • Page 3: Incoming Inspection

    Manual. See section VI PRE-INSTALLATION TESTING. 2) Before operating the Kooltronic Air Conditioner be certain that it is placed in its correct mounting position. All Air Conditioners containing an M, P, or V as part of the model number are designed to operate in a vertical position only.
  • Page 4 IV. Product Identification and Labels Each Kooltronic Air Conditioner includes an identification label. This label provides: Œ Model Number  Serial Number Ž Electrical power characteristics  Maximum and minimum ambient operating temperatures  Cooling capacity ‘ Type and amount of refrigerant required for recharging ’...
  • Page 5: Principles Of Operation

    Ambient air or water is then passed through the condenser coil, where it absorbs the heat and is then discharged to the environment. Kooltronic Air Conditioners are designed to operate continuously in order to eliminate compressor cycling, which shortens compressor life and causes line transients. The cool air discharge temperature is regulated by the capacity control (hot gas bypass) valve.The...
  • Page 6: Pre-Installation Testing

    Ambient air or water is then passed through the condenser coil, where it absorbs the heat and is then discharged to the environment. Kooltronic Air Conditioners are designed to operate continuously in order to eliminate compressor cycling, which shortens compressor life and causes line transients. The cool air discharge temperature is regulated by the capacity control (hot gas bypass) valve.
  • Page 7: Specific Model Data

    Dimensions (inches) are for reference only and are subject to change. Kooltronic Air Conditioners have been engineered to be installed easily. To avoid damaging your Air Conditioner, please read the following information before installation: 1.
  • Page 8: Drawings And Dimensions

    (Enclosure opening should be located as high as possible within this area, and equal or exceed size of cool air outlets.) * Other drain outlets are available - contact KOOLTRONIC Dimensions (inches) are for reference only and are subject to change.
  • Page 9: Technical Data

    609033-00-93 609033-00-92 609033-00-92 Filter 12251F 12251F 12251F NOTE: Part Numbers shown are for 60Hz/1Ø. For 50Hz consult Kooltronic. Standard Features Built-in Condensate Evaporator CFC-Free or Low-ODP Refrigerant EMI/RFI Suppressor Low Temperature Control Thermostat M/TAB Mounting System NEMA 12 Rating Maintained (UL50)
  • Page 10: Wiring Schematics

    Wiring Schematic EVAPORATOR ON/OFF SWITCH BLR MTR FOR UL LISTED UNITS RELAY SUPPRESSOR CRANKCASE HEATER K2A4C_NP33 OPTIONAL THERMAL HEATER HEATER CUTOUT T-STAT OPTIONAL SHORT RELAY SHORT CYCLE T-STAT TERMINAL BLOCK ON UNIT CYCLE PROTECTOR TIMER TO CUSTOMER'S ALARM SYSTEM CONDENSER OPTIONAL BLR MTR PRESSURE SWITCH...
  • Page 11: Maintenance

    3) The filters may be sprayed with Kooltronic A-16 Filter Recoating Adhesive to trap fine airborne contaminants, or they may simply be dried and reinstalled as strainer type filters.
  • Page 12 Refer to the data on the unit name plate which specifies the type of refrigerant and the amount of charge in ounces. E. Relocation If your Kooltronic Air Conditioner has to be moved to another location by truck, the following precautions should be taken: De-mount Air Conditioner from equipment, controller or enclosure.
  • Page 13: Trouble Shooting

    IX. Trouble-Shooting Each Kooltronic Air Conditioner is engineered for performance and built for reliability. They are designed to require no routine maintenance other than the cleaning of ambient air filters. If your air conditioner should require service, we have compiled a trouble-shooting chart to assist your service personnel.
  • Page 14 X. Accessories Air Cooled Water Panel Mounted Cooled Mini NP33 Horizontal Accessories and Options NP36 Rack Panel NP47 Mounted Mounted Mounted NP17 P59* NP59 (H & V) (HT) (WP) Adapter Plate for Rack Mounting • Air Deflectors • • • •...

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