Wayne EHG - Section II Initial Start up

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SECTION II
INITIAL START UP
NOTE: Read the applicable sequence of burner/primary gas control operation, gas pressure switches, etc. in Section III
Operation and Troubleshooting before proceeding.
1. Lay out combustion test equipment, manometers, stopwatch, DC micro-amp meter, and other miscellaneous tools as
needed.
2. Adjust the primary air shutter setting per the dimensions shown in the chart below. See figures 22 -26 (pages 31-32)
for air band adjustment instructions.
NOTE: Remove block-out plate using a 1/2" nut driver or wrench from the side of the burner IF the firing rate is
over 650,000(191 kW) Btu/hr on LP ONLY. See chart below. For location of block-out plate see figure 9 below.
EHG Start-Up Reference Chart
LP Gas Natural Gas
Btu/hr
Input
Air shutter
Manifold
Pressure
Air shutter
Manifold
Pressure
Opening
Block-out
Plate
Inches w.c.
Opening
Block-out
Plate
Inches w.c.
425,000 (125 kW) 3/8” (10mm) yes 3.7 (922Pa) 5/16” (8mm) yes 3.8 (947Pa)
450,000 (132 kW) 1/2” (13mm) yes 3.5 (872Pa) 1/2” (13mm) yes 3.5 (872Pa)
500,000 (147 kW) 13/16” (21mm) yes 3.5 (872Pa) 13/16” (21mm) yes 3.5 (872Pa)
550,000 (161 kW) 1-1/8” (29mm) yes 3.5 (872Pa) 1” (25mm) yes 3.5 (872Pa)
600,000 (176 kW) 1-3/8” (35mm) yes 3.5 (872Pa) 1-1/2” (38mm) yes 3.5 (872Pa)
650,000 (191 kW) 1-3/4” (19mm) removed 3.5 (872Pa) 1-3/4” (44mm) yes 3.5 (872Pa)
700,000 (205 kW) 1-7/8” (48mm) removed 3.5 (872Pa) 2-1/8” (54mm) yes 3.5 (872Pa)
Note: Air Shutter Opening Dimensions and Gas Manifold Pressures are approximate
and must be properly adjusted with calibrated emissions equipment.
Figure 8
Block out plate location
Figure 9
Block out
Plate