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MRCOOL Universal Series 36K BTU Multi-Position Air Handler | 3 Ton, R-454B, Multi-Speed | Model UAH18036-O

SKU: UAH18036-ON/AAvailability : In StockIn StockOut of stock
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$1,860.96

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MRCOOL® Universal® 36K Air Handler | High-Efficiency & Adaptable Indoor Climate Control

The MRCOOL® Universal® 36K Air Handler provides high-efficiency, performance-driven heating and cooling for year-round indoor comfort. Its flexible multi-position design supports vertical, horizontal, and downflow installations, adapting to various home layouts and fitting seamlessly into tight spaces. Designed for quiet operation and enhanced energy efficiency, it features an M-shaped aluminum evaporator coil for superior airflow and corrosion resistance.

Key Features:

✅ High-Efficiency Performance: Delivers powerful heating and cooling while helping to reduce energy costs.
✅ Multi-Position Design: Supports vertical, horizontal, and downflow installation for flexible placement in attics, closets, and tight spaces.
✅ Compact Footprint: Simplifies placement in homes with limited mechanical space.
✅ Quick Connect® Compatible: Works with MRCOOL® NO-VAC® Quick Connect® line sets (sold separately) for vacuum-free, streamlined installation.
✅ Optional Heat Kits Available: Universal® Series Heat Kits boost heating capacity and provide emergency backup in cold climates.
✅ Advanced M-Shaped Coil: 100% aluminum evaporator coil improves heat exchange, airflow, and energy efficiency.
✅ Quiet Operation: Runs at sound levels comparable to conversation or a dishwasher, blending into your home environment.
✅ Strong Warranty Protection: Backed by a 10-year parts warranty and a 2-year limited labor warranty.

Technical Specifications:

  • Capacity: 36,000 BTU

  • Installation Options: Vertical, Horizontal, Downflow

  • Coil Construction: 100% Aluminum, M-Shaped Design

  • Compatibility: NO-VAC® Quick Connect® line sets (sold separately), Universal® Series Heat Kits (optional)

  • Warranty: 10-Year Parts, 2-Year Limited Labor

Ideal For:

  • Whole-home heating and cooling in medium to large homes

  • Installations requiring flexible placement in tight spaces

  • Retrofits and upgrades for older, inefficient HVAC systems

  • Homeowners seeking high-efficiency, quiet, and adaptable indoor climate control

ModelUAH18036-O
Unit TypeUniversal Series Air Handler
UPC840255587846
GTIN00840255587846
ConfigurationFloor Mounted
Mount TypeMulti-Position
Air Flow DirectionDownflow, Horizontal, Upflow
Air Flow (CFM)1236.1 / 1147.8 / 1059.5 / 971.2 / N/A
Number of Speeds4
Cooling Capacity3 Ton
Blower MotorMulti Speed
Electrical Phase1-Phase
Voltage240V (115/208/230 compatible)
Cycle60 Hz
Max Overcurrent Protection15 amps
Min Circuit Ampacity (A)8 / 6
Heat Strip CompatibilityUp to 20 kW
Auxiliary Heater IncludedNo
Auxiliary Heater AvailableYes
Auxiliary Heater Sizes5 KW / 8 KW / 10 KW / 15 KW / 20 KW
System Application TypeCentral Split Systems
Line Set Connection TypeQuick Connect, Flared, or Sweat
Max Lineset Length (FT)246
Liquid Line Size3/8 inch
Suction Line Size3/4 inch
Metering DeviceEXV (Electronic Expansion Valve)
RefrigerantR-454b
Filter TypeReplaceable
Filter Size16 x 20 x 1 inches
Decibel Rating (dBA)48 / 46.5 / 45 / 33 / N/A
Decibel Rating Low (dBA)33
Decibel Rating High (dBA)48
Product Height (in)54.0 (53.98 net)
Product Length (in)17.5
Product Width (in)21.5 (17.52 net)
Weight (lbs)149.3 (149.25 net) / 182.1 gross
ColorDark Grey
Warranty10 Year, 10 Year Parts, 2 Year Labor
UL ListedYes
CSA ListedYes
ETL ListedYes
California Residentssee Prop 65 WARNING

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