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Optimal Airflow: Maintains low initial resistance to keep the HVAC system operating within manufacturer-specified static pressure limits
A veteran tech will use a manometer to measure the actual draft pressure at the switch port
providing controlled heating without the risk of carbonizing the oil
Once correctly wired to the 24V transformer and thermostat leads
Trane MOT18974 Motor 321702-401 Optimal Airflow: Maintains low initialThe Trane MOT18974 Motor is a high performance 1 20 HP blower motor engineered for specific Trane and American Standard air handlers and light commercial fan assemblies. Operating on a standard 115V single phase power supply, this 1050 RPM unit features a 3 speed configuration (Low, Med, High), allowing contractors to fine tune airflow delivery based on static pressure requirements and system demand. Designed with a 42 frame rolled steel body and an
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