- 72 -
9.3.2
Battery switch
The battery switch is situated inside the sound-
insulated bodywork. It allows to open or to close the
electrical connection between the battery and the
engine circuits.
9.3.3
Engine coolant heater
To make sure that the engine can start and accept load
immediately, an external cooling water heater
(1000 W, 240 V) is provided which keeps the engine
temperature between 38°C and 49°C.
9.3.4
Air heater for cold start
The air heater option ensures engine starts at
temperatures as low as -20°C.
On QES 85-105-120-150-200 generator sets the air
heater is controlled and operated automatically by the
engine ECU. A LED on the control panel indicates
that the air preheating is ON and the engine will start
as soon as the correct air temperature is reached.
On QES 60 generator sets a push button is provided to
regulate the air preheating manually, as described
below:
1. Push and hold the air heater button during preheat
time (see table below).
2. Release the air heater button and push the START
button to start engine.
3. When the engine starts fuel combustion, push and
hold the air heater button during reheat time (see
table below).
4. Repeat the reheat cycle during 120s. Maintain a
10s time interval between 2 reheating cycles.
Never turn the battery switch to
OFF during operation.
!
Temperature
Preheat time
Reheat time
0 °C
0 s
0 s
-5 °C
10 s
10 s
-10 °C
15 s
15 s
-15 °C
20 s
20 s
-20 °C
30 s
20 s
