Weil-McLain Evergreen EVG 70 Manual page 20

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Converting boiler to propane — EVG 155
Figure 17 Installing the propane gas orifi ce (some details omitted for clarity)
LEGEND for Figure 17 and Figure 18
1 Venturi (leave venturi attached to blower)
2 (3) hex-head screws, 5 mm hex (remove and retain)
3
Gas valve
4 Air silencer (leave connected to venturi)
5 Flexible gas line
6 Gas line to silencer bracket (rotate forward before disconnecting gas valve
from venturi
7 Propane orifi ce (in propane conversion kit envelope)
8 Rubber grommet (must be installed in valve for all applications) — make
sure grommet is properly seated in valve before inserting the propane
orifi ce
The jacket door must be in place during
operation.
jacket door removed except for inspection and
testing as directed in this manual.
20
as-fired water boiler —
DO NOT operate the boiler with the
Boiler Manual
70/110/155
Figure 18
Gas valve and venturi
(continued)
Part number 550-100-191/0917