CUMMINS N14 - Cooling System Specifications; Thermal Control Settings

Cooling System Specifications
Coolant Capacity (Engine Only) ............................................................................... 14.0 liters [15.0 U.S. Qt.]
Standard Modulating Thermostat-Range ........................................................................ 82-93°C [180-200°F]
Maximum Cylinder Block, Coolant Pressure (Pressure Cap Removed):
At 2300 RPM ......................................................................................................................317 kPa [46 psi]
At 1700 RPM ......................................................................................................................165 kPa [24 psi]
Coolant Alarm Activation Temperature
N14 460E ...............................................................................................................104 ± 1°C [220 ± 2°F]
All Other Ratings....................................................................................................100 ± 1°C [212 ± 2°F]
Maximum Allowable Top Tank Temperature:
N14 460E ............................................................................................................................ 104°C [220°F]
All Other Ratings ................................................................................................................. 100°C [212°F]
Minimum Recommended Coolant Temperature ........................................................................ 70°C [158°F]
Maximum Allowable Deaeration Time ........................................................................................... 35 minutes
Minimum Allowable Drawdown or 20% of System Capacity (Whichever is Greater) .... 11.5 liters [12 U.S. Qt.]
Minimum Allowable Pressure Cap ............................................................................................. 50kPa [7 psi]
Maximum Allowable Coolant Flow to Accessories ........................................... 1.3 liters/sec [20 U.S. Gal/Min]
Thermal Control Settings
Section 1 - Cooling System Cooling System Specifications
N14 Page 1-5