C18 ACERT auxiliary/generator set engines incorporate a separate circuit aftercooling system (SCAC) for all configurations. The primary advantage of the SCAC systsem is reduced aftercooler corrosion since no sea water circulates through the aftercooler. Many other improvements on these engines also contribute to minimizing owning and operating costs. The EPA Tier 3, IMO II, EU Stage IIIA compliant ratings are available with heat exchanger or keel cooled options. All major MCS type approvals are available from the factory.
The primary advantage of the separate circuit aftercooling system (SCAC) is that no sea water circulates through the aftercooler
AIR INLET SYSTEM
Separate circuit after-cooled (SCAC)
Open Crankcase Ventilation (OCV) system
Turbocharger, jacket water cooled
Turbocharger inlet, 152 mm (6 in) OD straight connection
CONTROL SYSTEM
Programmable low idle
Electronic diagnostics and fault logging
Electronic fuel/air ratio control
Engine Protection Mode for extended ambient conditions - EPA Tier 3 Ratings Only
70-pin customer connector
Three types of throttle inputs (primary/ secondary PWM, 0-5V, 4-20mA
COOLING SYSTEM
Separate Circuit After-Cooling (SCAC) for both HEX and Keel cooled engines
Engine JW and SCAC Shell & Tube Heat Exchangers for HEX cooled engines
SCAC pump, gear driven, for HEX cooled engines only