MRCOOL Universal Series 3 Ton Central Heat Pump Split System, UHP1836AH1836-O
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MRCOOL Universal Series 3 Ton Central Ducted Heat Pump System
The MRCOOL Universal Series 36,000 BTU 3 Ton Central Ducted Heat Pump System is a high-performance, inverter-driven HVAC solution designed for efficient whole-home heating and cooling. Built with advanced DC inverter technology, R-454B refrigerant, and a flexible multi-position air handler, this system is ideal for homeowners upgrading an older central HVAC system or installing a new ducted heat pump.
With efficiency ratings up to 18.0 SEER2, 12.0 EER2, and 10.0 HSPF2-4, the MRCOOL Universal 3 Ton system delivers dependable year-round comfort while helping reduce energy consumption compared to conventional single-stage equipment. It is designed for extreme climate operation, with continuous cooling operation up to 122°F, up to 100% cooling output at 110°F, continuous heating operation as low as -22°F, and up to 100% heating output at -13°F.
Key Features
- 3 Ton / 36,000 BTU Capacity: Designed for medium-size homes, primary residences, open layouts, and system replacements.
- Up to 18.0 SEER2 Efficiency: High-efficiency performance helps reduce energy usage while maintaining steady indoor comfort.
- R-454B Refrigerant: Uses next-generation refrigerant for strong performance with reduced environmental impact.
- DC Inverter Technology: Variable-speed operation adjusts heating and cooling output based on real-time demand.
- Extreme Climate Performance: Provides reliable heating and cooling in cold, mixed, and warm climates.
- Central Ducted Comfort: Works with ductwork to provide whole-home heating and cooling from one central system.
- Multi-Position Air Handler: Supports upflow, downflow, horizontal left, and horizontal right installation configurations.
- DIY-Friendly Line Set Option: Compatible with optional MRCOOL No-Vac® pre-charged line sets for simplified installation.
- Universal Heat Kit Compatible: Supports optional auxiliary heat kits for backup or supplemental heating.
- Certified Performance: ENERGY STAR®, ENERGY STAR Cold Climate, AHRI, NEEP, CEE, and federal tax credit eligible.
System Overview
This MRCOOL Universal split system pairs the UHP18036-O outdoor heat pump condenser with the UAH18036-O multi-position indoor air handler. Together, they create a flexible central ducted heat pump system built for efficient performance, quiet operation, and broad installation compatibility.
Unlike traditional single-stage HVAC systems that cycle fully on and off, the MRCOOL Universal Series uses inverter-driven technology to continuously adjust system output based on demand. This helps reduce temperature swings, improve humidity control, lower energy waste, and support quieter everyday operation.
Performance
| Electrical Requirement | Specification |
|---|---|
| Indoor Power Supply | 115 / 208 / 230V, 60Hz, 1 Phase |
| Outdoor Power Supply | 208 / 230V, 60Hz, 1 Phase |
| Indoor Minimum Circuit Ampacity | 8.0A / 6.0A |
| Indoor Max Fuse | 15A |
| Outdoor Minimum Circuit Ampacity | 29A |
| Outdoor Max Fuse | 30A |
Dimensions & Weight
| Component | Dimensions | Net / Gross Weight |
|---|---|---|
| Indoor Air Handler | 17.52" W x 21.50" D x 53.98" H | 149.25 / 182.10 lbs |
| Outdoor Condenser | 38.58" W x 16.34" D x 38.39" H | 204.15 / 235.23 lbs |
Indoor Airflow
| Fan Speed | Airflow |
|---|---|
| Turbo | 1,236 CFM |
| High | 1,147 CFM |
| Medium | 1,059 CFM |
| Low | 971 CFM |
DIY-Friendly No-Vac® Line Set Compatibility
The MRCOOL Universal Series offers installation flexibility that many traditional central ducted heat pump systems do not. This system can be installed using conventional HVAC methods, or it can be paired with compatible MRCOOL No-Vac® pre-charged line sets, sold separately.
When used properly, No-Vac® line sets can help simplify installation by reducing the need for traditional refrigerant line evacuation. For DIY-focused homeowners and installation professionals, this can help reduce installation time, lower labor costs, and make the Universal Series one of the most flexible central ducted heat pump systems available.
Indoor Air Handler Features
- Multi-Position Design: Supports upflow, downflow, horizontal left, and horizontal right installation configurations.
- Compact Cabinet: Designed to fit many closets, attics, basements, and mechanical rooms.
- M-Shaped All-Aluminum Coil: Corrosion-resistant coil design improves heat transfer and airflow efficiency.
- High Airflow Design: Helps move conditioned air efficiently through compatible duct systems.
- Multi-Voltage Capability: Indoor air handler supports 115V and 208/230V power configurations.
- Automatic Voltage Identification: Reduces manual conversion and rewiring requirements.
- Universal Heat Kit Compatible: Compatible with optional 5kW to 20kW auxiliary heat kits.
- Service-Friendly Design: Built for easier installation, maintenance, and long-term reliability.
Outdoor Condenser Features
- Inverter-Driven Compressor: Adjusts system output to match heating and cooling demand.
- Extreme Heat Cooling: Continuous operation up to 122°F, with up to 100% cooling output at 110°F.
- Extreme Cold Heating: Continuous operation down to -22°F, with up to 100% heating output at -13°F.
- Quiet Operation: Outdoor sound rating of 63 dB(A).
- R-454B Refrigerant: Factory charged with next-generation refrigerant.
- Certified Performance: AHRI data supports the listed capacity and efficiency ratings.
Ideal Applications
- Medium-size residential homes
- Primary residences and open floor plans
- Replacement of older central HVAC systems
- New residential construction
- Cold climate and mixed climate applications
- Installations requiring flexible ducted heat pump configuration
- Homeowners wanting a central heat pump compatible with optional No-Vac® line sets
Certifications & Incentive Eligibility
| Certification / Program | Status |
|---|---|
| AHRI Certified | Yes |
| ENERGY STAR® V6.1 | Eligible |
| ENERGY STAR® Cold Climate | Eligible |
| Federal Tax Credits | Eligible |
| NEEP Listed | Eligible |
| CEE Tier 1 - North | Eligible |
| CEE Tier 1 - South | Eligible |
Note: Rebate and tax credit eligibility may vary by location, installation details, and current program rules. Always confirm current incentive requirements before purchase or installation.
What’s Included
- MRCOOL Universal Series UHP18036-O outdoor heat pump condenser
- MRCOOL Universal Series UAH18036-O multi-position indoor air handler
- Factory refrigerant charge in outdoor condenser
- Installation documentation
- Manufacturer warranty coverage
What May Be Required
- Compatible MRCOOL No-Vac® pre-charged line set or traditional refrigerant line set
- Thermostat
- Electrical disconnect
- Electrical whip and breaker
- Surge protector
- Condensate drain materials
- Optional electric heat kit
- Professional installation supplies depending on local code requirements
Warranty Coverage
- 10-Year Parts Warranty
- 2-Year Limited Labor Warranty
The MRCOOL Universal Series 3 Ton Central Ducted Heat Pump System is a strong choice for homeowners who want efficient whole-home comfort, extreme climate performance, flexible installation options, and compatibility with optional MRCOOL No-Vac® pre-charged line sets.
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MRCOOL UNIVERSAL SERIES CENTRAL DUCTED HEAT PUMPS
How to Choose the Right MRCOOL Universal Series Central Ducted Heat Pump
The MRCOOL Universal Series is a high-efficiency inverter-driven central ducted heat pump designed to deliver reliable heating and cooling for homes, businesses, and light commercial applications. Featuring advanced variable-speed technology, ENERGY STAR® Cold Climate certification, and environmentally friendly R-454B refrigerant, these systems provide exceptional year-round comfort while helping reduce energy consumption and operating costs.
MRCOOL Universal Series Central Heat Pump Buying Guide
The MRCOOL Universal Series Central Ducted Heat Pump combines the comfort of a traditional whole-home HVAC system with the efficiency and performance of modern inverter technology. Available in 2 Ton, 2.5 Ton, 3 Ton, 4 Ton, and 5 Ton configurations, these systems are engineered to provide precise temperature control, lower energy bills, and dependable operation in virtually any climate.
Unlike conventional single-stage HVAC equipment that constantly cycles on and off, MRCOOL's variable-speed inverter compressor continuously adjusts output based on real-time heating and cooling demands. This allows the system to maintain more consistent indoor temperatures, reduce energy waste, improve humidity control, and extend equipment life.
One of the biggest advantages of the Universal Series is its outstanding cold-weather performance. These systems can deliver up to 100% heating capacity at outdoor temperatures as low as -13°F and maintain cooling performance in temperatures up to 110°F, making them an ideal solution for homeowners seeking year-round comfort without sacrificing efficiency.
The Universal Series features a multi-position air handler, compatibility with optional electric heat kits, and flexible installation options for upflow, downflow, horizontal left, and horizontal right applications. This versatility makes the system suitable for replacing existing furnaces, upgrading older heat pumps, or installing in new construction projects.
With ENERGY STAR® certification, Cold Climate qualification, federal tax credit eligibility, and efficiency ratings reaching up to 18.6 SEER2 and 10.8 HSPF2, the MRCOOL Universal Series is one of the most advanced central ducted heat pump systems available today.
Frequently Asked Questions
What size MRCOOL Universal Series heat pump do I need?
The correct MRCOOL Universal Series size depends on your home's square footage, insulation levels, ceiling height, window efficiency, and local climate. Universal Series systems are available in capacities ranging from 2 tons to 5 tons. A professional HVAC load calculation is recommended to determine the proper size for maximum comfort and efficiency.
What is inverter technology and why is it important?
Inverter technology allows the compressor to automatically adjust its operating speed based on heating and cooling demand. This results in improved efficiency, quieter operation, better humidity control, fewer temperature swings, and lower utility costs compared to traditional single-stage HVAC systems.
Can MRCOOL Universal Series systems heat in cold climates?
Yes. The MRCOOL Universal Series is designed for exceptional cold-weather performance and can provide up to 100% heating capacity at outdoor temperatures as low as -13°F. These systems are ENERGY STAR® Cold Climate certified and suitable for many northern climate applications.
Does the MRCOOL Universal Series qualify for tax credits?
Many MRCOOL Universal Series models qualify for federal energy-efficiency tax incentives and local utility rebates. Eligibility varies by installation location and program requirements, so homeowners should verify current incentives before purchase.
Is the MRCOOL Universal Series compatible with existing ductwork?
Yes. The MRCOOL Universal Series is designed as a central ducted HVAC solution and can often be installed using existing ductwork when properly sized and evaluated. A professional inspection of the duct system is recommended to ensure optimal airflow and performance.
HVAC System Sizing Guide
MRCOOL Universal Series Heat Pump Size Comparison
The MRCOOL Universal Series Central Ducted Heat Pump is available in multiple capacities to accommodate a wide range of homes, shops, and light commercial applications. Use the chart below to compare available system sizes and determine which inverter heat pump may be best suited for your project.
| System Size | BTU Capacity | Estimated Coverage | Best For | Common Applications |
|---|---|---|---|---|
| 2 Ton | 24,000 BTU | 1,000 – 1,200 sq ft | Smaller homes and additions | Condos, apartments, smaller houses |
| 2.5 Ton | 30,000 BTU | 1,200 – 1,500 sq ft | Average residential applications | Single-family homes and remodels |
| 3 Ton | 36,000 BTU | 1,500 – 1,800 sq ft | Medium-sized homes | Primary residences and open layouts |
| 4 Ton | 48,000 BTU | 1,800 – 2,500 sq ft | Larger homes | Multi-level homes and larger floor plans |
| 5 Ton | 60,000 BTU | 2,500+ sq ft | Maximum capacity applications | Large homes, workshops, and light commercial spaces |
DIY-Friendly Installation Available
Unlike many traditional central heat pump systems, the MRCOOL Universal Series can be paired with optional No-Vac® pre-charged line sets, helping simplify installation and reduce labor costs. These line sets arrive pre-charged with refrigerant and feature Quick Connect® fittings designed to eliminate the need for vacuuming refrigerant lines.
Important: Square footage is only a starting point when selecting a central heat pump system. Proper sizing depends on insulation levels, ceiling height, windows, climate zone, occupancy, and overall building design. For best results, a Manual J load calculation is recommended before purchasing HVAC equipment.
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