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OPERATING INSTRUCTIONS
MILLIVOLT CONTROL LIGHTING INSTRUCTIONS
1. STOP! Read the safety information label.
2. Make sure the manual shutoff valve is fully open.
3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo
ignitor does not light the pilot, refer to instructions for Match Lighting Instructions, Page 22.
4. Turn gas control knob clockwise
5. Wait (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas,
STOP! Follow the instructions under What To Do If You Smell Gas, Page 20.
6. From OFF position, turn the gas control knob counterclockwise
knob for 5 seconds. NOTE: If you are running the heater for the first time, it may be necessary to
press in the control knob for 30 seconds or longer to allow air to bleed out of the gas piping.
7. With the control knob pushed in, push in and release the piezo ignitor button to light the pilot.
8. Continue pushing the control knob in for a further 60 seconds to prevent the flame detector from shut-
ting off the gas while the probe is warming up. Release the control knob.
9. Turn gas control knob counterclockwise
10. After the pilot has been lit for one minute, the burners can be turned on. Turn the ON/OFF switch to
ON position.
11. If the gas logs will not operate, follow the instructions To Turn Off Gas To Heater below and call your
service technician or gas supplier.
Figure 31 -
Pilot
1. Turn control knob clockwise
2. If applicable: Turn ON/OFF switch to OFF position and/or set thermostat (if present) to lowest setting.
3. If applicable: Turn off all electric power to the heater.
Monessen • NBST27 Gas Log Set Installation/Owner's Manual • 81D3032 • Rev A • 08/16
to the OFF position and turn ON/OFF switch to OFF position.
to the ON position.
Switch
Figure 32 -
Controls
TO TURN OFF GAS TO HEATER
to OFF position to completely shut off the heater.
NBST27 Unvented Gas Log Set
to IGN position. Push in control
On/Off/Pilot
Knob
Hi/Lo
Knob
Piezo Ignitor
FP2374
controls
19
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