one for clockwise rotation (Open)

Precision Control: Maintains ANSI Class IV leakage standards (0

this 120V axial fan delivers a powerful 1200 CFM free air rating to overcome static pressure in long "trunk line" runs or large-diameter flexible ducting

it functions without a minimum pressure differential

Belimo A-22G-A22 Calibration kit 340155-7024 one for clockwise rotation (Open)The Belimo A 22G A22 Calibration Kit is an essential field service tool designed for the precise zero and span calibration of room CO2 sensors and duct mounted gas detectors. Engineered for HVAC automation systems, this kit ensures that IAQ (Indoor Air Quality) sensors maintain accuracy within strict tolerances, preventing sensor drift that can lead to inefficient demand controlled ventilation (DCV). The kit facilitates the accurate delivery of