Weil-McLain ECO 70 Manual page 16

TM -
G
AS FIRED WATER BOILER
Converting boiler to propane — ECO 155
Installing the propane gas orifice bushing (some details omitted for clarity)
for Figure 14 and Figure 15
1 Venturi (leave venturi attached to blower)
2 (3) hex-head screws, 5 mm hex (remove and retain)
3 Honeywell 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 orifice (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
orifice
14. Perform complete start-up sequence (beginning on page 75),
including check for gas leaks and checking for proper operation.
15. Reinstall jacket door.
tion. DO NOT operate the boiler with the jacket
door removed except for inspection and testing as
directed in this manual.
16
— Boiler Manual
-
(cont.)
Gas valve and venturi
Part number 550-142-122/0513