for diagnostic purposes

the minimum inlet supply pressure is 5

clogged ports that cause delayed ignition

5-ton replacement in the field

This motor is engineered to handle the static pressure requirements of industrial heating systems

Carrier 321979-401 Wiring Harness 318973-401 for diagnostic purposesThe Carrier 321979 401 Wiring Harness is a critical OEM HVAC replacement part designed for specific commercial and residential air handling units and furnace systems. As a main wiring harness, it serves as the primary electrical interface between the system control board, inducer motor, and safety limit switches. This assembly features high temperature rated insulation and factory terminated connectors to ensure low resistance and reliable HVAC