Niagara Div 23 09 Guide Specification - Honeywell

Damper leakage shall not exceed 10 CFM per square foot, at 1.5-inches water gauge static pressure. Control damper actuators shall be furnished by the Control System Contractor. Two-position or proportional electric actuators shall be direct-mount type sized to provide a minimum of 5 in-lb torque per square foot of damper area. ................
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