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TrimLine Series NP28
Air-Cooled Panel-Mounted Air Conditioners

download product information Download
Product
Information

These products have undergone a design update. The older models are no longer available.

Legacy products are no longer in normal production. Consult factory for availability.
We recommend current series Guardian, GuardianX or Slimkool  as possible alternatives.
TECHNICAL DATA

Click to
Request
Quote
ModelNEMA
Rating
UL/CUL
Listed or
Recognized
BTU/H
Capacity
95/95
Rating
BTU/H
Ambient Temp.VoltsHzRunning
Amps
Approx.
Weight
Spare and
Replacement
Parts
°F°C
Max./Min.Max./Min.lbskg
Request RFQ linkKA6C4NP28L12Listed40002823120/5049/10115/11060/508.0/8.08539Order Parts
Rating shown is for operation at maximum ambient temperature.
Fuse Amps for these units are 15.

Click on image for larger view
TrimLine NP28 Air Conditioner photo
NEMA TYPE 12
MAINTAINED

TECHNICAL DATA

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Request
Quote:
Request RFQ link
Model
Number:
KA6C4NP28L
NEMA
Rating:
12
UL/CUL
Listed or
Recognized:
Listed
BTU/H
Capacity:
4000
95/95 Rating
BTU/H:
2823
Ambient
Temp °.F
Max./Min.:
120/50
Ambient
Temp °.C
Max./Min.:
49/10
Volts:115/110
Hz:60/50
Running
Amps:
8.0/8.0
Approx.
Weight lbs.:
85
Approx.
Weight kg.:
39
Spare and Replacement PartsOrder Parts
Rating shown is for operation at maximum ambient temperature.
Fuse Amps for these units are 15.

STANDARD FEATURES

  • Baked Powder Finish
  • Built-in Condensate Evaporator
    • Built-in Condensate Evaporator eliminates need for draining condensate under normal operating conditions. May not be adequate in extremely high humidity with open or leaky enclosure. Overflow condensate drain fitting and hose are included.
  • CFC-Free Refrigerant
    • CFC-free R134a Refrigerant is used
  • Closed-Loop Cooling
    • The enclosure interior airflow system is isolated from the ambient airflow or waterflow system. No ambient air can invade the cool, dehumidified sensitive component compartment.
  • Compressor Short Cycle Protector
    • Protects the compressor from possible damage due to harmful short cycling, (frequent starting) where temperature controls enable the compressor to restart frequently or after a power interruption. These conditions could be due to low or fluctuating heat loads within the electrical enclosure or a power failure. The Compressor Short Cycle Protector will prevent the compressor from starting when it has been shut off for less than several minutes or the power was interrupted. By limiting the number of compressor starts per hour, the life of the compressor is prolonged. It is recommended where installations are subject to solar gain and or changes in the enclosure internal load due to the degree of usage of the equipment being cooled. It is also recommended where higher capacity units are specified in anticipation of the future addition of heat producing equipment being added to the enclosure.
  • Epoxy-Coated Coils
    • Condenser and Evaporator Coils are Epoxy-Coated. This coating will withstand 1000 hours of salt spray per the ASTM B 117 test method. Also see Stainless Steel Cabinet or Integrity NEMA 4/4X Air Conditioners. NOTE: Severe operational environments such as waste water treatment and salt spray are likely to cause corrosion failure over a period of time regardless of coating. Warranty: Corrosive conditions may affect the warranty coverage. Consult factory for warranty limitations in corrosive environments. NOTE: For additional corrosion protection options, contact factory.
  • Filter
    • All KOOLTRONIC filters consist of a multi-layer grid of sturdy corrugated aluminum, securely held in a one-piece aluminum frame. Filters are required wherever air is drawn into an electronics enclosure or related cooling equipment to keep internal parts as clean as possible. A non-drying adhesive coating traps a high percentage of particulate matter. These filters are reuseable, they may be washed and recoated with the appropriate filter recoating adhesive. Replacements are available for those which become damaged or otherwise non-serviceable.
  • Low Ambient Kit
    • Maintains sufficient operating pressures when ambient temperatures drop below 50°F. Includes a compressor heater and a pressure device that senses the reduced discharge pressure and modulates the condenser blower. Effective to a minimum ambient temperature of 0°F.
  • NEMA 12 Rating Maintained (UL50)
    • All units are fully gasketed for tight, leak-proof installation, in compliance with the NEMA 12 Enclosure Ratings.
  • Programmable Temperature Alarm
    • All models feature a programmable temperature alarm to alert if early action is required.
  • Programmable Thermostat
    • All models feature a programmable thermostat, allowing more accurate and versatile performance features.
  • UL/CUL Listed

ACCESSORIES AND OPTIONS

  • Filter Recoating Adhesive
    • This compound is a superior product for recoating filters after washing. The adhesives penetrate dirt layers to keep the filter surface tacky for longer effective performance between washings.
  • Internal Corrosion Protection
    • This protection increases reliability in hostile environments. This protection for the refrigeration system consists of an air cured coating applied to the brazed joints on the condenser side, providing a degree of protection from corrosive environments. This coating will withstand 1000 hours of salt spray per the ASTM B 117 test method. Also see Stainless Steel Cabinet or GuardianX Air Conditioners. NOTE: Severe operational environments such as waste water treatment and salt spray are likely to cause corrosion failure over a period of time regardless of coating. Warranty: Corrosive conditions may affect the warranty coverage. Consult factory for warranty limitations in corrosive environments. NOTE: For additional corrosion protection options, contact factory.
  • Lifting Eyes
    • Heavy-gauge steel lifting eyes, attached to the side panels, assist in positioning units.
  • Remote Monitoring
    • An optional feature for models with Programmable Thermostat, Remote Monitoring provides temperature data for warning of early action required.,Accomplished through a Hot Key connection from the Programmable Thermostat to a monitoring system (not supplied) that is ModBus-RTU compatible (i.e. XWEB500/3000/300) via an external 2-position terminal block.
  • Remote Thermostat Relay
    • Used only with a user-installed remote thermostat or the Kooltronic KLLC100 Lead Lag Controller, this 24VAC relay can be used for the sequential operation of two units or with a single unit. An external terminal strip is provided for field interconnection. NOTE: User-installed thermostat must have a set point of 75°F with a differential of 11°F. NOTE: A factory installed thermostat is not provided with this option.
  • Replacement Filters
    • All KOOLTRONIC filters consist of a multi-layer grid of sturdy corrugated aluminum, securely held in a one-piece aluminum frame. Filters are required wherever air is drawn into an electronics enclosure or related cooling equipment to keep internal parts as clean as possible.,A non-drying adhesive coating traps a high percentage of particulate matter. These filters are reuseable, they may be washed and recoated with the appropriate filter recoating adhesive. Replacements are available for those which become damaged or otherwise non-serviceable.
  • Special controls or indicators
  • Special materials or finishes
  • Special motors, line cords or connectors
  • Stainless or Aluminum Shell

For NP28 models the filter part number is 8751F.

 

Enclosure Lights

Many popular units are available as 3D solid models for customer system integration. Contact Kooltronic for details.

AIRFLOW
Click on image for larger view

TrimLine NP28 Air Conditioner isometric illustration

PERFORMANCE

TrimLine NP28 Air Conditioner performance chart

GENERAL ARRANGEMENT
Click on image for larger view

TrimLine NP28 Air Conditioner general arrangement drawing
Dimensions, inches [mm], are for reference only and subject to change.
GENERAL ARRANGEMENT
Click on image for larger view

TrimLine NP28 Air Conditioner general arrangement drawing
Dimensions, inches [mm], are for reference only and subject to change.

SIMILAR MODELS

ModelGuideline
Dimensions
(H x W x D)*
BTU/H Rating
Narrow-Mini Series20.00 x 10.25 x 10.002900
TrimLine NP3332.88 x 12.38 x 9.504000
*See model specifics for drawings, dimensions, mounting or cutout plans.

DOCUMENTS

  • Data Sheet
    KCH20 & KCH30 Product Data Sheet [60Kb]
    NP28 Product Data Sheet [478Kb]
    WNP28 Product Data Sheet [101Kb]
  • GA Drawing
    KA6C4NP28L General Arrangement Drawing W/ Programmable T-stat [71Kb]
    NP28 General Arrangement Drawing (OLD) [270Kb]
  • Installation Instructions
    K_A4C4NP28L Installation Instructions (2 pages) (NEW) [162Kb]
    K_A4C4NP28L Installation Instructions (2 pages) (OLD) [128Kb]
  • Literature
    Air Conditioner Quick-Sheet [105Kb]
    Condensate Evaporator Kits [241Kb]
    Condensation and Electronics [3983Kb]
    Electronic Enclosure Cooling With Special Purpose Air Conditioners [254Kb]
    Hazardous Location Series White Paper [234Kb]
    Increasing the Lifespan and Reliability of Electrical Components [212Kb]
    Slimkool Series Flyer [584Kb]
    Kooltronic Custom Capabilities Flyer [2194Kb]
    Kooltronic Custom Cooling Medical Flyer [211Kb]
    Kooltronic Design Guide/Catalog (220 pages) [229400Kb]
    Kooltronic Refrigeration System Manufacturing [55Kb]
    Kooltronic Standard Warranty [55Kb]
    Kooltronic Unit Longevity Press Release [167Kb]
    NEMA Enclosure Ratings [91Kb]
    Short-Form Catalog (16 pages) [897Kb]
    Airflow Switch Data Sheet [159Kb]
    Laboratory Environmental Testing Services [157Kb]
    Powder Paint Application Facilities Flyer [165Kb]
  • Operator's Manual
    KLLC100 Lead-Lag Controller [38Kb]
    KLLC480 Lead-Lag Controller [79Kb]
    Trimline NP28 Operator's Manual (OLD) [172Kb]
    Trimline NP28 Operator's Manual W/ Programmable T-stat [724Kb]
  • Wiring Diagram
    K2A4C4NP28L Wiring Diagram (Ladder)(OLD) [66Kb]
    K2A6C4NP28L Wiring Diagram (Ladder)(NEW) [51Kb]
    KA4C2-4NP28L56 Wiring Diagram (Ladder) [70Kb]
    KA4C4NP28L Wiring Diagram (Point-to-Point) (OLD) [53Kb]
    KA4C4NP28L, K2A4C4NP28L5 Wiring Diagram (Ladder) [76Kb]
    KA6C4NP28L Wiring Diagram (Point-to-Point) [63Kb]
    KA6C4NP28L Wiring Diagram (Point-to-Point) [64Kb]
    KA6C4NP28L Wiring Diagram (Point-to-Point) [64Kb]
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Monday, August 15, 2022  
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30 Pennington-Hopewell Road
Pennington, NJ 08534 USA
609-466-3400
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609-466-1114 (fax)
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