Atlas Copco XAMS 1150 CD7 T3 APP Instruction Manual page 91

COLD WEATHER PACKAGE
The cold start option consists of larger batteries
and a blow off valve to be able to start the engine
at temperatures between -10°C (14°F) and -25°C
(-13°F). It also includes a preheater.
INLET SHUTDOWN VALVE
The inlet shut down valve is a safety device
preventing the engine from over speeding when
sucking in combustible fumes. When the engine max.
RPM is exceeded a pneumatically controlled solenoid
valve closes off the air inlet and the fuel supply to the
engine is cut.
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FUELXPERT
This is a control module that regulates engine speed
and the air inlet to optimise fuel consumption
depending on the working conditions, and the output
required.