Weil-McLain WM97+70 Manual page 17

WM97+ -
gas fired water boiler
Converting boiler to propane — WM97+155
Installing the propane gas orifice bushing (some details omitted for clarity)
Figure 12
LEGEND for Figure 12 amd Figure 13
Venturi (leave venturi attached to blower)
1
(3) hex-head screws, 5 mm hex (remove and retain)
2
Honeywell gas valve
3
Air silencer (leave connected to venturi)
4
Flexible gas line
5
Gas line to silencer bracket (rotate forward before disconnecting gas valve
6
from venturi
Propane orifice (in propane conversion kit envelope)
7
Rubber grommet (must be installed in valve for all applications) — make
8
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.
DO NOT ATTEMPT TO MEASURE VALVE OUTLET
PRESSURE.
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 85),
including check for gas leaks and checking for proper operation.
15. Reinstall jacket front panel.
Part number 550-142-085/0712
The valve could be damaged by manom-
— Boiler Manual
Figure 13
(cont.)
Gas valve and venturi
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