Carrier 40muaaq36xa3 Fan Coil Unit 3 Ton R-410A

Product Description

The CARRIER 40muaaq36xa3 is a 3-ton indoor fan coil unit designed for ducted, multi-position installation in light commercial heat pump crossover systems using R-410A refrigerant. Rated at 36,000 BTU/h cooling capacity, the unit operates on a single-phase 208-230 VAC, 60 Hz power supply. It features an electronically commutated motor (ECM) blower rated at 1/2 horsepower with four selectable speeds, delivering airflow from 865 to 1,188 CFM. An electronic expansion valve (EEV) handles refrigerant metering, offering precise capacity control. Licensed HVAC technicians and light commercial contractors handle installation of this unit.

This fan coil is designed for light commercial ducted applications where a multi-position air handler is required. It can be installed in multiple orientations to suit the mechanical room layout. The unit supports electric heat ranges from 5 to 15 kW, making it suitable for climates requiring supplemental or backup heat alongside a heat pump system. It is ETL Listed and Energy Star rated, meeting common project specification requirements for light commercial retrofits and new construction.

Key Features

• ECM blower motor with four speed settings for flexible airflow tuning from 865 to 1,188 CFM
• Electronic expansion valve (EEV) for precise refrigerant metering and improved efficiency
• Multi-position ducted cabinet accepts horizontal or vertical installation orientations
• Electric heat range of 5 to 15 kW supports supplemental heat configurations
• ETL Listed and Energy Star rated for light commercial compliance requirements
• Flare-type liquid and suction line fittings with 3/8-inch liquid line and 3/4-inch suction line connections

Compatibility

The 40muaaq36xa3 is part of the Carrier 40MUAA product family and is compatible with Carrier, Bryant, and Payne heat pump systems. Designed as an OEM-style light commercial fan coil replacement or new installation unit for 3-ton R-410A heat pump crossover applications.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with applicable local mechanical codes and the manufacturer installation instructions. Disconnect and lock out all electrical power before beginning any work on the unit. Refrigerant handling requires EPA Section 608 certification. Confirm drain connection sizing and condensate routing before finalizing the cabinet position, as the 3/4-inch drain connection must be properly trapped per standard condensate drainage practice.