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STEP
6:
PILOT
TEST
NOTE:
BEFORE
BEGINNING
THIS
PROCEDURE,
RECHECK
MANUAL
GAS VALVES
TO
MAKE
SURE ALL VALVES
ARE
OPEN EXCEPT THE
MANUAL
VALVE
CLOSEST TO
THE MAIN
GAS TRAIN AND THE
MANUAL
PILOT VALVE ON
THE BURNER (FIGURE 11 ).
Procedure:
1.
Turn the boiler ON/OFF switch to the OFF position.
2.
Make sure the pilot gas valve located on the side
of
the air inlet box and any other
pilot gas valves located before the burner pilot gas train are OPEN
.
•
Adjust natural gas pressure at the Inlet to the main gas train to the value
indicated on the fire test
report.
PILOT
SHUTOFF
VALVE
REGULA lOR
SOL£NIOO
VAlVE
PILOT
SPARK
ASSEMBLY
PWG
Figure 11
.
Pilot Gas Train
NOTE:
CONNECT
MANOMETER TO PILOT LINE
AT
THE
PRESSURE
TAP
PROVIDED
ON
TH
E PILOT GAS LINE.
NOTE THE
NATURAL GAS PRESSURE
AN
D
ADJUST TO
THE
PRESSURE
INDICATED
IN
THE
FIRE
TEST
REPORT BY
ADJUSTING
THE
PILOT NATURAL
GAS
REGULATOR.
Section 5
-
Start-up
17
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