ELECTRICAL AND ECU
Air Heater Components and Functions
12/05
6LY3 Service Manual
12-13
© 2007 Yanmar Marine International
AIR HEATER COMPONENTS
AND FUNCTIONS
Air Heater Operation
Figure 12-18
Figure 12-18
1–ECU
2–Battery
3 – Air Heater “A”
4 – Air Heater “B”
Figure 12-19
Figure 12-19
+
-
(2)(1)
(3)
(4)
0006285
Key On
Air Heater “B”
Engine Speed
Time
Pre-Heat. Air Heater is on when the
coolant temperature is less than
10°C (50°F) (maximum 30 seconds)
while engine is running.
After Heat. Air Heater is on when the
coolant temperature is less than
45°C (113°F) (maximum 10 minutes,
7 minutes) while engine is running.
Time
Time
Air Heater “A”
0006359
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