Lennox 55W78 Tensioner Assembly 318172-701 the Bard HVAC 2151-021 EEV

the Bard HVAC 2151-021 EEV Manual Adjustment Tool is an indispensable asset for precise system calibration and maintenance

allowing for both heating and cooling circuit integration or a common-off configuration

Designed for seamless integration with the Erie PopTop actuator series

maintaining the integrity of the heat exchanger and blower assembly

but the wattage output will be reduced to approximately 4130 Watts

Lennox 55W78 Tensioner Assembly 318172-701 the Bard HVAC 2151-021 EEVThe Lennox 55W78 Tensioner Assembly is a mission critical OEM replacement part engineered for high demand Lennox HVAC systems. As a veteran technician, you know that maintaining precise belt tension is the difference between a smooth running blower assembly and a costly emergency call. This HVAC belt tensioner features a robust 3. 98 inch OD pulley and a high grade spring mechanism designed for consistent pressure across variable load conditions. It