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Cummins N14 STC, Celect, Celect Plus – Service Manual 018-018   Cooling System

Specifications

 TOC

Automotive Applications

Coolant Capacity (Engine Only):

CELECT™ or CELECT™ Plus 18.9 liters [20 qt]
Standard Modulating Thermostat Range 82 to 93°C [180 to 200°F]

Maximum Coolant Cylinder Block Pressure (pressure cap removed):

At 2300 rpm 317 kPa [46 psi]
At 1700 rpm 165 kPa [24 psi]

Minimum Coolant Pressure (pressure cap removed):

High Pressure Manifold at 1800 rpm 152 ± 21 kPa [22 ± 3 psi]
Rocker Housing Water Manifold at 1800 rpm 124 ± 21 kPa [18 ± 3 psi]

Coolant Alarm Activation Temperature:

CELECT™ or CELECT™ Plus 104 ± 1°C [220 ± 2°F]

Maximum Allowable Top Tank Temperature:

N14-410E+, 435E+, 460E+, 500E+, 525E+, 370ESP+, 435ESP+ 104°C [220°F]
N14-310E+, 330E+, 350E+, 370E+, 330E+ 100°C [212°F]
CELECT™ Industrial 96°C [205°F]
STC Industrial 100°C [212°F]
Minimum Recommended Top Tank Temperature 70°C [158°F]
Maximum Allowable Deaeration Time 25 minutes
Minimum Allowable Draw Down or 10 Percent of System Capacity (whichever is greater) 4.7 liters [5 qt]
Minimum recommended Pressure Cap 50 kPa [7 psi]
Maximum Allowable Coolant Flow to Accessories 1.3 liters per second [20.5 gal per minute]

Marine and Industrial Applications

Coolant Capacity (Engine Only):

CELECT™ Plus and STC Industrial 20.8 liters [21 qt]
Standard Modulating Thermostat Range 82 to 93°C [180 to 200°F]
Minimum Coolant Pressure (pressure cap removed): High Pressure Manifold at 1800 rpm
152 ± 21 kPa [22 ± 3 psi] Rocker Housing Water Manifold at 1800 rpm
124 ± 21 kPa [18 ± 3 psi] Maximum Allowable Coolant Temperature Engine Outlet:
CELECT™ 96°C [205°F]
STC 100°C [212°F]
Coolant Alarm Activation Temperature: CELECT™ Plus
96°C [205°F] STC
102 ± 2°C [215 ± 2°F] Maximum External Resistance in Aftercooler Circuit
35 kPa [5 psi] Minimum Coolant Flow Through Aftercooler Circuit (Open Thermostat)
83 liters per minute [22 gal per minute] Coolant Temperature at Aftercooler Radiator Inlet at Maximum Engine Coolant Out Temperature
93°C [199°F] Maximum Water Temperature into Aftercooler at Maximum Engine Coolant Out Temperature
72°C [162°F] Maximum Allowable Top Tank Temperature:
N14-410E+, 435E+, 460E+, 500E+, 525E+, 370ESP+, 435ESP+ 104°C [220°F]
100°C [212°F] N14-310E+, 330E+, 350E+, 370E+, 330E+ CELECT™ Industrial
96°C [205°F] STC Industrial
Minimum Recommended Top Tank Temperature 70°C [158°F]
Maximum Allowable Deaeration Time 25 minutes
Minimum Allowable Draw Down or 10 Percent of System Capacity (whichever is greater) 4.7 liters [5 qt]
Minimum recommended pressure cap 50 kPa [7 psi]
Maximum Allowable coolant Flow to Accessories 1.3 liters per second [20.5 gal per minute]

Last Modified:  17-Aug-2012
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