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The Trane MOT12987 is a heavy-duty
The three-pole configuration allows for complete circuit isolation
which can compromise the pressure switch circuit and lead to furnace ignition failure
verify static pressure and filter cleanliness
Aaon R78281 Inducer Assembly 322838-752 The Trane MOT12987 is aThe AAON R78281 Inducer Assembly is a high performance OEM replacement part engineered for industrial grade HVAC units. Operating at 460V with a motor speed of 3000 RPM, this draft inducer blower is critical for maintaining the correct pressure and airflow required for safe combustion and efficient gas heating. As a direct AAON R78280 cross reference, the R78281 ensures a precise fit for legacy and modern rooftop units, preventing the common system