this page aria-label="Show more">. Emergency shut-off signs illustrate and identify where to turn off equipment, gas, water, or electrical power in the event of an emergency. ... Emergency Fuel Shut Off Switch Label. Item I5409. Emergency Gas Pump Shut Label. Item I5422. ... Notice Diesel Emergency Shut-Off Switch Sign. Item J1688. Use Emergency Pump Shut-Off Immediately Sign.
Since boiler rooms are unattended, emergency shutoff would be from the person entering the boiler room from the interior hallway, therefore, one should be sufficient. By the way, normally above the burners would be automatic detectors shutting down the burners.
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C = controller, T = transmit, S = switch, V = valve. 5th is the function modifier: H = high, L = low, O = open, C = closed. simply omit if no modifiers apply. see a more complete list on Wikipedia. This is followed by loop number, which is unique to that loop. For instance FIC045 means it is the Flow Indicating Controller in control loop 045.
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