J. Limits for turbocharger overspeed alarm (SAH 89)
TC overspeed alarm
Matching 41XXX 42XXX
TCR12 65300 68800
TCR14 54100 57000
TCR16 45000 47400
TCR18 37100 39000
TCR20 30800 32400
K. Exhaust gas temperatures
The exhaust gas temperature deviation alarm is normally ±50° C with a delay
of 1 min., but at start-up the delay is 5 min. Furthermore the deviation limit is
±100° C if the average temperature is below 200° C.
L. Turbocharger speed
Normal value at full load of the turbocharger is dependent on engine type
(cyl. no) and engine rpm. The value given is just a guide line. Actual values
can be found in the acceptance test protocol or name plate on turbocharger.
M. Crankcase protection
For engines above 2250 kW or bore > 300 mm, crankcase protection is
standard for marine application. The system is optional for smaller engines.
This will be done by an oil mist detector (LAH/LSH 92) as standard or with a
splash oil/crankcase protection system (TAH/TSH/TDAH/TDSH 58 + TAH/
TSH 29) as option.
N. Alarm at 110% load
During shop test of 110% load it can occur that there is exhaust gas temper-
ature alarm, this can be caused to high air temperature before compressor
combined with low ambient air pressure.
10° C change in ambient temperature correspond to approx. 15° C exhaust
gas temperature change.
2017-10-11 - en
Description
Operation data and set points
3700061-5.9
MAN Diesel & Turbo
B 19 00 0
SaCoSone
L27/38S; L27/38 EN
5 (5)
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