BRAHM TM BC Central Collector Series
Heat Detection Tubing Heat Detection Tubing is a new fire detection system implemented by Clean Air Industries since January 2020. The tubing runs along the wall in the filter compartment. When temperature reaches 375 o F, the tube bursts and immediately releases the fire suppression agent. The heat detection tubing is implemented to allow the system to release the fire suppression agent even during power loss. The heat detection tubing comes with pressure switch to monitor whether the fire suppression agent has been released. System Pressure Switch
The pressure switch monitors the pressure in the heat detection tube. When the tube bursts, the pressure in the tube will drop. This triggers the pressure switch, which will then send signal to the PLC to let the PLC know that the fire suppression agent has been released. The fire suppression agent can also be actuated electrically, when the fire pull is triggered, or when either the primary or secondary heat detector detects heat before the heat detection tubing melts. Louvers
The louvers are located on top of the unit on the intake and exhaust. They are pneumatically controlled using solenoid valves. Activation of the valve opens the louvers, deactivation closes. There are indicator lights on the DIN connectors for the valves to show if power is present or not.
The louvers are opened and shut using a pneumatic cylinder. The cylinder has a spring extension so that the loss of power will force the louvers shut. Check valves are in place so that if compressed air is lost or low, the louvers will not shut blocking air flow to the unit. Compressed air is not required to close the louvers, only to open them due to the spring extension.
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