6 Start-up
16
Installation and maintenance instructions ecoPOWER 3.0 /2, ecoPOWER 4.7 /2 0020241403_02
Gas type
Gas mixer
Restrictor
flap
Starting
position
Warm-up
position
Starting
position
Natural gas
70
±
20
160
35
Liquid gas
70
±
20
200
25
6.2
Carrying out a test run
Conditions
: The laptop with the installed service software is connected
to the rear of the product via the RJ-45 connection, Service software has
started
▶
Click on
engine
in the lower part of the window in the
service software.
▶
During the test run, observe the values under "System
status" and "Engine".
1.
Start the product.
2.
Specify a speed via the service software.
3.
During the starting procedure, ensure that the temperat-
ure of the coolant remains below 50 °C.
Conditions
: The temperature of the coolant rises above 50 °C
▶
Switch off the product and check the coolant circuit.
4.
Set the default setting on the gas valve assembly and
the zero pressure regulator:
5.
Alternatives 1 / 2
Conditions
: Fuel: Natural gas
1
2
▶
Remove the black plastic cover from the gas valve
assembly.
▶
Measure the pressure at the test nipple
(1)
.
–
0.8 … 0.9 kPa (8.0 … 9.0 mbar)
▽
If the measured value deviates from the target
value, proceed as follows:
▶
Turn the adjusting screw
(2)
of the zero pres-
sure regulator anti-clockwise by at least 39
rotations to ensure that the zero pressure
regulator is completely open.
▶
Turn the adjusting screw for the zero pres-
sure regulator by 15 rotations in a clockwise
direction.
5.
Alternatives 2 / 2
Conditions
: Fuel: Liquefied petroleum gas
1
2
▶
Turn the volume restrictor
(1)
as far as it will go in
the direction of
–
.
▶
Turn the volume restrictor by 39 rotations in the dir-
ection of
+
.
▶
Remove the black plastic cover
(2)
from the adjust-
ing screw on the zero pressure regulator.
▶
Turn the adjusting screw on the zero pressure regu-
lator anti-clockwise as far as it will go.
▶
Turn the adjusting screw for the zero pressure regu-
lator by 15 rotations in a clockwise direction.
6.
Let the product warm up at 2100 rpm until the temperat-
ure of the coolant reaches 75 °C.
7.
Observe the lambda oxygen sensor value (lambda
sensor: Motor actual value).
–
Target value (lambda sensor: Target)
±
0.02
8.
Observe the gas mixer position.
–
Natural gas target value: 160
–
170
–
Liquefied petroleum gas target value: 200
–
210
9.
Increase the speed to:
–
VNC 88+3/2: 2400 rpm
–
VNC 138+5/2: 3400 rpm
10. Observe the lambda sensor voltage.
–
The lambda sensor voltage must be adapted to the
target value within five minutes.
11. Turn the adjusting screw on the zero pressure regu-
lator clockwise or anti-clockwise in order to decrease or
increase the gas mixer position to a value within the fol-
lowing value range.
–
VNC 88+3/2: 200 … 230
–
VNC 138+5/2: 350 … 380
Note
If you have to turn the adjusting screw of the
zero pressure regulator by more than one
rotation, check the default settings for the
zero pressure regulator again.
12. In doing so, observe the lambda sensor target value.
–
Target value (lambda sensor: Target)
±
0.02
13. Use the service software to restart the product.
▽
Potential starting problems: No ignition/ignition mal-
function and/or the set speed is not reached or is
only reached briefly.
▶
Repeat the settings.
