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MyKooltronic
TrimLine Series NP28
Air-Cooled Panel-Mounted Air Conditioners
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.
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NEMA
TYPE 12
MAINTAINED
Select Model Type
Electrical (Volts/Hz):
115/60
100/50
Model
NEMA
Rating
UL/CUL
Listed or
Recognized
BTU/H
Capacity
95/95
Rating
BTU/H
Ambient Temp.
Volts
Hz
Running
Amps
Approx.
Weight
°F
°C
Max./Min.
Max./Min.
lbs
kg
KA6C4NP28L
12
Listed
4000
2823
120/50
49/10
115/110
60/50
8.0/8.0
85
39
Rating shown is for operation at maximum ambient temperature.
Fuse Amps for these units are 15.
TECHNICAL DATA
Model
NEMA
Rating
BTU/H
Capacity
Volts/Hz
KA6C4NP28L
12
4000
115/60V, 60/50Hz
UL/CUL Listed or Recognized: Listed
95/95 BTU Rating: 2823
Ambient Max./Min. °F: 120/50
Ambient Max./Min. °C: 49/10
Running Amps: 8.0/8.0
Approx. weight: 85 lbs. (39 kg)
Rating shown is for operation at maximum ambient temperature.
Fuse Amps for these units are 15.
Standard Features
Accessories & Options
Airflow Diagram
Performance
Arrangement
Similar Models
Documents
•
Baked Powder Finish
Heavy-duty steel shell with powder-baked finish (ANSI 61 gray). Custom color options are available.
•
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 reusable, they may be washed and recoated with the appropriate filter recoating adhesive. Replacement filters are available and can be ordered online at kooltronic.com/spareparts.
•
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
•
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 a Programmable Thermostat, Remote Monitoring provides temperature data for warning of early action required. This is 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
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Dimensions, inches [mm], are for reference only and subject to change.
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Dimensions, inches [mm], are for reference only and subject to change.
Dimensions, inches [mm], are for reference only and subject to change.
Model
Guideline
Dimensions
(H x W x D)*
CFM @0" S.P.
Narrow-Mini Series
20.00 x 10.25 x 10.00
0
TrimLine NP33
32.88 x 12.38 x 9.50
0
*See model specifics for drawings, dimensions, mounting or cutout plans.
Data Sheet
KCH20 & KCH30 Product Data Sheet [60Kb]
NP28 Product Data Sheet [3221Kb]
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 (Discontinued) [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]