Carrier 48TJ500443 Motor Channel 320720-756 The GM40AV-W relies on line

The GM40AV-W relies on line power for timing

Exposure to liquids or corrosive fumes will damage the capacitive sensor element

The "Z" suffix indicates a non-standard shaft

Common Questions & Installation Tips What is the maximum pressure rating for the H17CB-3

Carrier 48TJ500443 Motor Channel 320720-756 The GM40AV-W relies on lineThe Carrier 48TJ500443 Motor Channel is a critical structural component designed for precise motor stabilization within commercial HVAC systems. Engineered specifically for Carrier rooftop units, this heavy duty motor mounting bracket ensures the draft or blower motor remains perfectly aligned during high torque operation. Fabricated from high grade galvanized steel, the channel provides the mechanical rigidity necessary to minimize harmonic vibration