Marine Installation Manual 2021-08 4-99
4 Ancillary Systems
4.10 Engine room ventilation
X72DF
4.10.4 Outside ambient air temperature
The intake air temperature can vary greatly depending on the area of operation,
and as the engine may operate over a wide range of ambient air temperatures, hot
and cold limits should be considered.
When operating within the normal temperature range of -10 to 45 °C (see
3.2.2 Operating conditions,  3-5), the engine does not require any special meas-
ures (i.e. no separate scavenge air heater is required). When operating below
-10 °C, the exhaust gas waste gate must be designed project specifically. There-
fore, please contact WinGD to get the project-specific layout. In addition, the re-
quirements of the turbocharger maker as outlined in Table 4-16 must be
considered. When operating above 45 °C, the power output of the engine may be
limited (please contact WinGD for case by case calculations).
Table 4-16 Operational temperature range requirements of the turbocharger
Turbocharger
maker
Operational
temperature
range
Requirements
ABB -40 to 45 °C No additional requirements
MHI < 0 °C
Tachometer sensor, silencer materials and ma-
nometer materials (vinyl tube and liquid) must be
changed
Impeller tightening pressure must be increased
Warm-up operation is recommended
0 to 45 °C No additional requirements
NOTE
The requirements in the above table will be automatically updated
without notice by the turbocharger maker. For up to date requirements,
please see the specifications of the turbocharger maker.
NOTE
No special measures are required for engine operation within the
normal temperature range of -10 to 45 °C.
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