Description
MRCOOL Universal 36,000 BTU 3 Ton 18 SEER2 Central Heat Pump Air Conditioner System
The MRCOOL® Universal® Series 36,000 BTU (3 Ton) Multi-Position Air Handler & DC Inverter Heat Pump Split System is engineered for powerful, energy-efficient year-round comfort using next-generation R-454B refrigerant. This matched system pairs a variable-speed inverter condenser with a multi-position air handler to deliver stable indoor temperatures while reducing energy consumption and mechanical wear. Designed for installation flexibility, the air handler supports upflow, downflow, and horizontal mounting, making it ideal for closets, attics, or mechanical spaces, while compatibility with MRCOOL® NO-VAC® Quick Connect® line sets simplifies setup. An aluminum corrosion-resistant evaporator coil enhances airflow and heat transfer, optional electric heat kits provide cold-climate support, and inverter operation ensures smoother, quieter performance with up to 18 SEER2 efficiency, making this system a dependable solution for homeowners seeking modern comfort, installation versatility, and long-term durability.
- High Efficiency: Up to 18 SEER2 for energy-saving year-round comfort
- Inverter Operation: Variable-speed performance for stable temperatures and quieter operation
- Flexible Installation: Multi-position air handler supports upflow, downflow, and horizontal mounting
- Compact Footprint: Slim cabinet fits tight mechanical spaces
- Quick Connect Ready: Compatible with MRCOOL NO-VAC® line sets for easier installation
- Cold-Climate Support: Optional heat kits provide supplemental heating
- Durable Coil Design: Aluminum evaporator resists corrosion and improves heat transfer
- Quiet Performance: Engineered for low operating sound
- Warranty Coverage: 10-year parts and 2-year labor protection
Specifications
DIMENSIONS
| Condenser Dimensions | 38.58" W × 16.34" D × 38.39" H |
| Air Handler Dimensions | 17.52" W × 21.50" D × 53.98" H |
| Condenser Weight | 204.15 lbs |
| Air Handler Weight | 149.25 lbs |
CAPACITY & PERFORMANCE
| Zone Capacity | 1 |
| Cooling Capacity | 36,000 BTU |
| Heating Capacity | 37,000 BTU |
| SEER2 | Up to 18 |
| EER2 | Up to 12 |
| HSPF2-4 | 10 |
| HSPF2-5 | 8.2 |
| Coverage Area | Up to ~1,600 sq ft* |
| Cooling Operating Range | -22°F to 122°F |
| Heating Operating Range | -22°F to 75°F |
| Outdoor Noise Level | 63 dB(A) |
| Indoor Noise (Hi → Low) | 48 → 33 dB(A) |
*Coverage varies by insulation, layout, and climate.
ELECTRICAL REQUIREMENTS
| Condenser | 208–230V / 1 Phase / 60 Hz / 30A Max Breaker / 29A MCA |
| Air Handler | 115/208/230V / 1 Phase / 60 Hz / 15A Max Breaker / 8/6A MCA |
REFRIGERANT & PIPING
| Refrigerant | R-454B |
| Factory Charge | 126.99 oz |
| Liquid Line Size | 3/8" |
| Suction Line Size | 3/4" |
| Max Line Set Length | 246 ft |
FEATURES
| Air Handler Mounting | Multi-Position (Upflow / Downflow / Horizontal) |
| Coil Construction | Aluminum M-shaped evaporator |
| Filter Type | Replaceable |
| Filter Size | 16" × 20" × 1" |
| Compressor | DC Inverter Twin-Rotary |
| Metering Device | EXV |
| Auxiliary Heater Included | No |
| Auxiliary Heater Options | 5 / 8 / 10 / 15 / 20 kW |
CERTIFICATIONS & WARRANTY
| Certifications | UL • CSA • ETL Listed |
| Warranty | 10-Year Parts • 2-Year Limited Labor |
What’s Included
- MRCOOL® Universal® 36,000 BTU DC Inverter Heat Pump Condenser (Outdoor Unit)
- MRCOOL® Universal® 36,000 BTU Multi-Position Air Handler (Indoor Unit)
- Factory-installed electronic expansion valves (EXV) for matched system performance
- Reusable air filter (pre-installed in air handler)
- Installation and user documentation
Installation & Guides
Frequently Bought Together
MRCOOL Universal Series 3 Ton Central Heat Pump Split System 208–230V, UHP1836AH1836-O
MRCOOL No Vac 3/8 3/4 Precharged Lineset for Ducted Systems - R454B
MRCOOL Heat Kit for 2nd Gen VersaPro Central Ducted Systems
MRCOOL LineGuard 4.5" Complete Line Set Cover Kit - 12 ft
MRCOOL Condenser Risers - Set of 2
Outdoor Condenser Pad - 18 In. x 38 In. x 3 In.
