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Full-Size Air-Cooled
Top-Mounted Air Conditioners

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Select Model Type

Electrical (Volts/Hz):

ModelNEMA
Rating
UL/CUL
Listed or
Recognized
BTU/H
Capacity
95/95
Rating
BTU/H
Ambient Temp.VoltsHzRunning
Amps
Approx.
Weight
°F°C
Max./Min.Max./Min.lbskg
K2A6C12HTLListed1200011500125/-2052/-2823060/5012.0/12.015270
1200011500125/-2052/-282086013.415270
Rating shown is for operation at maximum ambient temperature.

TECHNICAL DATA

ModelNEMA
Rating
BTU/H
Capacity
Volts/Hz
K2A6C12HTL12000230/60V, 60/50Hz
UL/CUL Listed or Recognized: Listed
95/95 BTU Rating: 11500
Ambient Max./Min. °F: 125/-20
Ambient Max./Min. °C: 52/-29
Running Amps: 12.0/12.0
Approx. weight: 152 lbs. (69 kg)
K2A6C12HTL12000208/60V, 60Hz
UL/CUL Listed or Recognized: Listed
95/95 BTU Rating: 11500
Ambient Max./Min. °F: 125/-20
Ambient Max./Min. °C: 52/-29
Running Amps: 13.4
Approx. weight: 152 lbs. (69 kg)
Rating shown is for operation at maximum ambient temperature.
  • Standard Features
  • Accessories & Options
  • Airflow Diagram
  • Performance
  • Arrangement
  • Similar Models
  • Documents
• 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.
• 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.
• Condenser Blower Controller
• 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.
• High Refrigerant Pressure Protection
• Low Temperature Control Thermostat
Electronic Thermostatic Low Temperature Control prevents over-cooling and provides energy-efficient operation.
• NEMA 1 Rating Maintained (UL50)
• UL/CUL Listed
• Zero ODP Refrigerant
R410a, an HFC having zero ozone depleting potential.

• Aluminum Shell
Where light weight and/or compatibility with appearance of aluminum enclosures are required. Unpainted Type 5052 is standard. Other types and ultraviolet-resistant baked powder finish are available.
• Compressor Short Cycle Protector
Available as a Standard Feature on models with Programmable Thermostat. 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.
• Enclosure Heater
Eliminates damaging condensation, increasing reliability of electrical enclosure components.
• 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.
• 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 materials or finishes
• Special motors, line cords or connectors
• Stainless Steel Shell
• Temperature Alarm
A thermostat is mounted inside the cabinet and attached to a sensor in the warm air return. When the air temperature increases to the set point, a signal is sent to a terminal block. User-installed wiring from the terminal block to local and/or remote warning devices (light, bell, siren, etc.) can be for normally open or closed operation.
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Airflow Diagram Thumbnail
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Top-Mount H12airflow diagram

Dimensions, inches [mm], are for reference only and subject to change.

Top-Mount H12 performance chart
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General Arrangement Thumbnail
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Top-Mount H12 general arrangement drawing
Dimensions, inches [mm], are for reference only and subject to change.

Dimensions, inches [mm], are for reference only and subject to change.
ModelGuideline
Dimensions
(H x W x D)*
CFM @0" S.P.
Rack/Top-Mount H512.13 x 17.25 x 22.000
*See model specifics for drawings, dimensions, mounting or cutout plans.
  • Data Sheet
    HTL12 Product Data Sheet [1420Kb]
  • GA Drawing
    HTL12 General Arrangement Drawing [116Kb]
  • Installation Instructions
    K2A6C12HTL Installation Instructions (2 pages) [247Kb]
  • 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]
    HTL12 General Operator's Manual [338Kb]
  • Wiring Diagram
    (Pre September 2022) HTL12 Wiring Diagram (Point to Point) [73Kb]
    HTL12 Wiring Diagram (Ladder) [43Kb]
    HTL12 Wiring Diagram (Point-to-Point) [67Kb]
Many popular units are available as 3D solid models for customer system integration. Contact Kooltronic for details.

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Wednesday, May 21, 2025  
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30 Pennington-Hopewell Road
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