MRCOOL Signature TruInverter 36K BTU 3 Ton 19 SEER2 Heat Pump Condenser and Multi-Position Air Handler

The MRCOOL® Signature Series TruInverter™ 36K Heat Pump Condenser delivers powerful, energy-efficient comfort year-round, making it an ideal solution for homeowners seeking consistent performance, lower energy costs, and long-term reliability. With efficiency ratings of 19 SEER2 for cooling and 9 HSPF2-4 for heating, it maintains precise indoor temperatures while using less electricity than traditional fixed-speed systems. At the core of the system is TruInverter™ variable-speed technology, which continuously adjusts output to match real-time demand.

This eliminates temperature swings, improves humidity control, reduces system wear, and delivers quieter operation—enhancing comfort while extending equipment life. To further streamline the setup process, this unit is designed to work with MRCOOL® No-Vac® Quick Connect® line sets, which are pre-charged and eliminate the need for vacuuming or evacuation.

This specialized compatibility significantly reduces installation time and removes the need for expensive specialized tools, making the process faster and more reliable for both professionals and DIY enthusiasts. The TruInverter™ 36K is factory-charged with R-454B refrigerant, a next-generation, environmentally responsible option that provides excellent heat-transfer performance with significantly lower global warming potential. Factory charging also simplifies installation, reduces labor time, and minimizes refrigerant handling errors.

Designed for quiet operation, the unit runs at just 68 decibels, comparable to a household dishwasher, with a sound-dampening top that reduces noise without restricting airflow. Rugged construction includes a steel louver coil guard and wire fan discharge grille to protect against debris and harsh weather, while a service-friendly layout makes installation and maintenance easier.

For added peace of mind, the system is backed by a 10-year limited parts warranty and a limited lifetime compressor warranty. Combining inverter efficiency, quiet performance, durable construction, and strong warranty protection, the MRCOOL® TruInverter™ 36K is a smart, long-term investment in dependable home comfort.

The MRCOOL® Signature Series TruInverter™ 36K BTU 230V Multi-Position Air Handler is designed to deliver powerful, energy-efficient comfort for homes and light-duty applications. Built with advanced TruInverter™ variable-speed technology, this system continuously adjusts output to match real-time demand, maintaining precise indoor temperatures while using significantly less energy than traditional fixed-speed systems. The result is quieter operation, smoother performance, and lower monthly energy costs.

At the core of the system is next-generation R-454B refrigerant, which provides excellent heat transfer while dramatically reducing environmental impact. This modern refrigerant helps lower global warming potential while ensuring compliance with current and future efficiency regulations.

Installation flexibility is a major advantage. The air handler supports upflow, downflow, and horizontal configurations, making it ideal for attics, crawl spaces, closets, and mechanical rooms.

Its slim, compact design fits where bulky air handlers cannot. When paired with a compatible TruInverter™ outdoor heat pump condenser, the system delivers efficient heating and cooling in all seasons.

Setup is faster and cleaner thanks to compatibility with MRCOOL® No-Vac® Quick Connect® line sets, which arrive factory-charged with R-454B refrigerant. This eliminates vacuum pumps, refrigerant handling, and specialized HVAC tools, reducing labor and installation risk.

The air handler works with most third-party smart thermostats, giving you freedom to choose your preferred control platform. Optional TruInverter™ electric heat kits provide added heating support for cold climates or backup operation.

Backed by a limited lifetime compressor warranty and a 10-year parts warranty, the MRCOOL® TruInverter™ 36K delivers efficient, flexible, and long-lasting comfort you can depend on.

The MRCOOL XK-120D2 is a professional wired controller specifically designed for the Signature Series TruInverter™ systems. This white, wall-mounted thermostat features a clear LCD display and provides comprehensive command over your HVAC system, including advanced scheduling and precise temperature monitoring. It includes a battery backup to ensure your time and schedule settings remain saved even during a power failure

Features

• Operating Modes: Supports a full range of settings including Auto, Cool, Dry, Fan, Heat, and Emergency Heat.
• Precision Fan Control: Features eight distinct fan speed settings: Mute, Low, Med-Low, Med, Med-High, High, Turbo, and Auto.
• Intelligent Monitoring: Includes a real-time Room Temperature Display and an Error Code Display for simplified troubleshooting.
• Energy Efficiency: Built-in "ECO" function to activate or deactivate energy conservation modes easily.
• User Protection: Features a Child Lock function to prevent accidental setting changes.
• Smart Memory: Power-down memory ensures the system retains its configuration through electrical interruptions.
• Flexible Interface: Offers both 12-hour and 24-hour clock systems and the ability to switch between Fahrenheit and Celsius displays.
• Maintenance Alerts: Built-in "Change Filter" reminder to help maintain optimal indoor air quality.