Weil-McLain WM97+100 Manual page 20

WM97+ Series 2
Converting boiler to propane — WM97+155
Installing the propane gas orifice bushing (some details omitted for clarity)
for Figure 15 and Figure 16
Venturi (leave venturi attached to blower).
Three (3) hex-head screws, 5 mm hex (remove and retain).
Honeywell gas valve.
Air silencer (leave connected to venturi).
Flexible gas line.
Gas line to silencer bracket (rotate forward before disconnecting gas valve
from venturi.
Propane orifice (in propane conversion kit envelope).
Rubber grommet (must be installed in valve for all applications) — make
sure grommet is properly seated in valve before inserting the propane
orifice.
12. Swing the gas line to silencer bracket (item 6) back into position
and snap onto the gas line.
eter fluid contamination. Failure to comply could result
in severe personal injury, death or substantial property
damage.
13. After installation is complete, attach the propane conversion label
(in conversion kit bag) next to the boiler rating plate.
14. Perform complete start-up sequence (beginning on page 90),
including check for gas leaks and checking for proper operation.
15. Reinstall jacket front panel.
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GAS FIRED WATER BOILER
The valve could be damaged by manom-
— Boiler Manual
Gas valve and vent
Part number 550-142-204/0117
(cont.)