Operation (cont'd)
B. Operating Procedure
1. For Model NGB with standing pilot:
a. To light the pilot, turn the knob on the gas valve to "PILOT" and push it in. Hold the knob in
while lighting the pilot and for 50 seconds after the pilot is lit. Then turn the knob to "ON" and
the unit is ready to light. Do not attempt to light the main burners directly with a flame.
b. Push the "ON/OFF" switch to the "ON" position. The unit will automatically fill with water.
Wait 30 seconds after the water level reaches the full mark on the gauge glass. then push the
"ON/OFF" switch to "RESET". The unit will light.
c. If the pilot requires relighting, first turn the unit off and wait 5 minutes. Then follow the
instructions in step "a." above.
2. For Model NGB/E with Carborundum ignition coil:
a. The manual control knob on the gas valve must be in the "ON" position.
b. Push the "ON/OFF" switch to the "ON" position. The unit will automatically fill with water.
Wait 30 seconds after the water level reaches the full mark on the gauge glass, then push
the "ON/OFF" switch to "RESET". The unit will light.
3. For Model
NGB/2
with standing pilot:
a. To light the pilot, turn the knob on the gas valve to "PILOT", then push the knob in and hold
it while lighting the pilot burner. Continue to hold the knob in for 60 seconds after the pilot is
lit. Then turn the knob to "ON". Do
not
try to light the main burners directly with a flame.
b. Push the "ON/OFF" switch on the cabinet front panel to the ON position. The red light in the
switch will come on, and the unit will automatically fill with water. When the water level in the
gauge glass reaches the full mark. the green "READY" light will come on. Push the "START"
switch. The amber light in the switch will come on. and the burner will light.
c. If the pilot goes out, first turn the unit off and wait 5 minutes, before you try to relight the
pilot. Then follow the operating instructions, beginning with step "a" above.
4. For Model
NGB/2/E
with electronic ignition:
a. Turn the knob on the gas valve to "ON".
b. Push the "ON/OFF" switch on the cabinet front panel to the ON position. The red light in the
switch will come on, and the unit will automatically fill with water. When the water level in the
gauge glass reaches the full mark, the green "READY" light will come on. Push the "START"
switch. The amber light in the switch will come on, and the burner will light.
5. To shut down any model:
a. Push the "ON/OFF" switch to the OFF position. When the generator has partially cooled,
the unit will drain automatically.
b. To shut down the unit completely, also turn the knob on the gas valve to the "OFF"
position.
6. For any model:
a. If electric power failure or low water condition has stopped operation, wait at least 5
minutes, then follow the operating procedure for your unit to restart it.
b. If generator pressure rises too far (over 14 PSI), the safety pressure switch will shut
off power to the controls. In this case, after waiting at least 5 minutes, restart the unit
by following the operating procedure for your unit, beginning with step "a".
If the pressure rises too high more than once, call your Groen Authorized Service Agency
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