MRCOOL Universal® 36,000 BTU 3 Ton DC Inverter Packaged Heat Pump – R32 – 18 SEER2 – Single Phase (MDPH18036D)

MRCOOL Universal 36K BTU Inverter Packaged Heat Pump – Model MDPH18036D

The MRCOOL Universal® 36K BTU DC Inverter Packaged Heat Pump (MDPH18036D) provides powerful heating and cooling in a compact, energy-efficient HVAC system designed for dependable year-round comfort. Featuring advanced DC inverter compressor technology, this system adjusts its output in real time to match your home’s exact heating and cooling needs.

Unlike traditional HVAC systems that constantly turn on and off, the inverter-driven compressor operates at variable speeds to maintain steady indoor temperatures. This reduces energy consumption, minimizes mechanical wear, and allows the system to run more quietly while delivering consistent airflow and comfort throughout the home.

With an impressive 18 SEER2 efficiency rating, the MRCOOL Universal 3-ton packaged heat pump significantly lowers energy costs while maintaining reliable performance. It is engineered to perform in demanding climates, providing dependable heating in temperatures as low as –22°F and cooling capability in outdoor conditions up to 125°F.

This system utilizes R-32 refrigerant, a next-generation refrigerant with a lower Global Warming Potential compared to older refrigerants. The result is improved environmental sustainability and compliance with modern HVAC efficiency standards.

Installation flexibility makes the Universal Series ideal for both replacement systems and new HVAC installations. The unit supports horizontal, vertical upflow, and downflow configurations, allowing HVAC professionals to adapt the system to a wide range of residential layouts.

Designed for durability and long-term reliability, the MRCOOL Universal packaged heat pump is backed by a 10-year parts and labor warranty, giving homeowners peace of mind and dependable performance for years to come.

Key Features

• Advanced DC inverter compressor technology
• 18 SEER2 high-efficiency packaged heat pump
• Cold climate heating performance down to –22°F
• Cooling operation up to 125°F outdoor temperature
• R-32 environmentally friendly refrigerant
• Flexible installation with horizontal, upflow, and downflow configurations
• Energy Star Cold Climate Certified
• Quiet inverter-driven compressor operation
• Intelligent defrost control
• 10-year parts and labor warranty included

Performance Specifications

Cooling Capacity	34,000 BTU
Heating Capacity	34,000 BTU
Tonnage	3 Ton
SEER2	18
EER2	11.2
HSPF2	8.5
Voltage	208/230V
Phase	Single Phase
Frequency	60 Hz
Refrigerant	R-32
Refrigerant Volume	149.9 oz
Max Fuse Breaker	40A
Minimum Circuit Ampacity	35A
Sound Level	63 dBA

System Components

• Compressor: Inverter Rotary
• Condenser Fan Motor: Direct Drive
• Condenser Fan RPM: 720
• Blower Motor: Direct Drive
• Blower Speeds: 10
• Blower RPM: 920
• Metering Device: Electronic Expansion Valve (EEV)

Optional Electric Heat Kits

• 6kW Electric Heat Kit
• 9kW Electric Heat Kit
• 12kW Electric Heat Kit

Dimensions & Weight

Width	44 in
Depth	35.44 in
Height	49.25 in
Net Weight	523 lbs
Shipping Weight	545 lbs

Certifications & Warranty

• AHRI Certified
• Energy Star Cold Climate Certified
• 10 Year Parts Warranty
• 10 Year Labor Warranty

The MRCOOL Universal 36K BTU packaged heat pump delivers dependable heating and cooling with advanced inverter efficiency, making it a reliable and energy-saving HVAC solution for residential applications.