Trane TR22REG-DB Operation Manual page 14

Operating System Functions and Definitions
Power Switch: The power switch controls the entire generator set control system. If this switch is
placed in the OFF (O push in down mode) position, the internal electrical control circuit of the unit
will not have electrical power. When this switch is placed in the ON (I in the up mode) position, the
control system can be manually or automatically started with ATS.
Fuel switch: The fuel switch allows the fuel to flow to the engine when placed in the ON or (I ) is in
the up position. Likewise, the switch turns the flow of fuel off to the engine when placed in the OFF
(O) push down position.
Emergency stop switch: If an emergency situation occurs, immediately
press the Emergency Stop Switch located on the right outside corner of the
standby cabinet. The unit will automatically shut down. Once the switch has
been depressed and the emergency situation has passed, to re-start the
generator unit, rotate clockwise 15° to pop out into the normal operating
position. When depressed, all generator control systems will immediately
shut down, including the engine and generator head. The Emergency Stop
Switch should be pressed immediately should any unexpected emergencies occur. Depressing this button
will help minimize dangerous damage to persons, pets, property, plants, or to the generator unit itself.
Primary Circuit Breaker (located on main control panel under generator lid): The primary
circuit breaker controls the ON/OFF functions of the generators electrical power output. When
this switch is in the up (ON) position, electrical power output will be produced and flow
normally. When this switch is placed in the down (OFF) position, electrical power output will
be broken, or turned off. However, as a safety function, when this switch is placed in the ON
position, the production of a too large of an electrical load or a short circuit due to faulty
operation, the switch will immediately and automatically switch to the OFF position in order to
protect the generator from damage. Should this occur, turn off the generator unit and correct the
cause before restarting and placing the circuit breaker in the ON position.
Use: When starting manually, always start the generator before placing the main circuit breaker in
the ON position. Likewise, when operating manually, place the circuit breaker in the OFF position
before shutting the generator down.
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