Burner Setup
HI 110 / 200 / 300
46
ghi_tx001449gb.fm
6.6
Adjusting the Fuel Pressure
Requirements
Machine shut down and cool to the touch
Power disconnected
Fuel pressure gauge
Background
The information below will show you how to check the fuel pressure on your
machine. Incorrect fuel pressure will result in too much fuel, or too little fuel, to be
supplied to the burner. This will cause the machine to smoke during operation.
When to
check
Check the fuel pressure if the machine emits smoke during operation.
Procedure
To check and/or adjust the fuel pressure, carry out the following procedure.
1. Remove the access panel. See topic
Removing the Access Panel
.
2. Disconnnect one of the wires from the solenoid valve
(a)
.
3. Remove the threaded plug
(b)
from the pressure test port
(c)
using a hex key
wrench. Set the plug in a safe location to be re-installed later.
4. Install a pressure gauge with adapter
(d)
in the pressure test port.
5. Start the machine. See topic
Starting the Machine.
6. With the machine running, verify the fuel pressure setting during the pre-
ventilation period (approximately 15 seconds). Refer to the
Technical Data
charts in this manual for the correct settings.
7. After the pre-ventilation period, the absence of a flame will cause the machine to
stop in safety mode. Press the reset button to enable re-start if the fuel pressure
needs adjustment.
ghi_gr007379
a
