Weil-McLain WM97+100 Manual page 16

WM97+ Series 2
Converting boiler to propane — WM97+70
Installing the propane gas orifice bushing (some details omitted for clarity)
7. See Figure 10. Insert the propane gas orifice bushing (item 4)
into the gas valve outlet as shown.
8. Press the bushing into the gas valve outlet until the bushing
flange butts against the gas valve outlet.
Inspect the O-rings on the propane gas orifice bush-
ing an on the gas valve outlet (item 5, Figure 10).
The O-rings must be in good condition and must
be installed. Failure to comply will cause a gas leak,
resulting in severe personal injury or death.
9. Reposition gas valve into the venturi and reinstall the gas valve
retention ring (item 3, Figure 10).
manometer fluid contamination. Failure to comply
could result in severe personal injury, death or sub-
stantial property damage.
10. After installation is complete, attach the propane conversion
label (in conversion kit bag) next to the boiler rating plate.
11. Perform complete start-up sequence (beginning on page 90),
including check for gas leaks and checking for proper operation.
12. Reinstall jacket front panel.
– 16 –
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GAS FIRED WATER BOILER
The valve could be damaged by
— Boiler Manual
for Figure 10
Gas valve.
Venturi.
Gas valve retention ring.
Propane orifice bushing with o-ring.
Gas valve o-ring.
Pressure reference hose — LEAVE CONNECTED AT BOTH
ENDS.
the boiler with the jacket door removed
except for inspection and testing as di-
rected in this manual.
Part number 550-142-204/0117
(cont.)
DO NOT operate