Ahu Shutdown Relay at Jennifer Logan blog

Ahu Shutdown Relay. an ahu needs to be shut down by an aproved fire alarm relay. You can break the control feed right at the origin. i used to see a jumper on the fan controller and when it was removed the fan shutdown. When a fire alarm occurs it is common to shut down hvac equipment to. the fire alarm relay and associated wiring must cause the shutdown of the ahu/fan directly and not through an hvac. is there anywhere in code that requires a/c unit shutdown for the activation of any fire alarm initiating device type. wiring hvac shutdown using fire system relay with high current relay. does anyone know if the uniform codes (ubc, ufc, umc, etc) or nfpa 72 requires shutdown of all hvac systems.

Wiring HVAC Shutdown Using Fire System Relay With High Current Relay
from www.lowvoltageinstaller.com

i used to see a jumper on the fan controller and when it was removed the fan shutdown. When a fire alarm occurs it is common to shut down hvac equipment to. wiring hvac shutdown using fire system relay with high current relay. an ahu needs to be shut down by an aproved fire alarm relay. You can break the control feed right at the origin. is there anywhere in code that requires a/c unit shutdown for the activation of any fire alarm initiating device type. the fire alarm relay and associated wiring must cause the shutdown of the ahu/fan directly and not through an hvac. does anyone know if the uniform codes (ubc, ufc, umc, etc) or nfpa 72 requires shutdown of all hvac systems.

Wiring HVAC Shutdown Using Fire System Relay With High Current Relay

Ahu Shutdown Relay an ahu needs to be shut down by an aproved fire alarm relay. i used to see a jumper on the fan controller and when it was removed the fan shutdown. You can break the control feed right at the origin. When a fire alarm occurs it is common to shut down hvac equipment to. the fire alarm relay and associated wiring must cause the shutdown of the ahu/fan directly and not through an hvac. wiring hvac shutdown using fire system relay with high current relay. an ahu needs to be shut down by an aproved fire alarm relay. does anyone know if the uniform codes (ubc, ufc, umc, etc) or nfpa 72 requires shutdown of all hvac systems. is there anywhere in code that requires a/c unit shutdown for the activation of any fire alarm initiating device type.

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