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Precise Lockup Performance: Engineered to achieve a tight shut-off
ensuring that the control board receives the correct signal to initiate the ignition sequence or safely shut down if the system detects an obstruction in the flue or a failed blower motor
as original specs require it for proper phase shift and torque
For steam boiler applications requiring integrated safety controls
Trane SHE5366 Sheave R-407C Precise Lockup Performance: Engineered toAs a field technician, you know that drive train precision is non negotiable for commercial HVAC performance. The Trane SHE5366 Sheave is a heavy duty, single groove v belt pulley designed specifically for large scale air handling units and packaged rooftop systems. Engineered from powder coated cast iron, this BK190 sheave features a precise 1 13 16 inch bore with a standard 1 4" x 1 8" keyway to ensure slip free torque transmission. With an 18. 75
