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&IGURE Installing the propane gas orifice bushing (some details omitted for clarity)
Converting boiler to propane — ECO 70/110 (cont.)
7. See Figure 12. 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 bushing
an on the gas valve outlet (item 5, Figure 12). 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 12).
$/./4!44%-044/-%!352%6!,6%/54,%4
02%3352%
The valve could be damaged by manom-
eter fluid contamination. Failure to comply could result
in severe personal injury, death or substantial property
damage.
10. After installation is complete, attach the propane conversion label
(in conversion kit bag) next to the boiler rating plate.
11. Perform complete start-up sequence (beginning on page 75),
including check for gas leaks and checking for proper operation.
12. Reinstall jacket door.
,%'%.$for Figure 12
1 Gas valve
2 Venturi
3 Gas valve retention ring
4 Propane orifice bushing with o-ring
5 Gas valve o-ring
6 Pressure reference hose — LEAVE CONNECTED AT
BOTH ENDS
4HEJACKETDOORMUSTBEINPLACE
DURINGOPERATION
DO NOT oper-
ate the boiler with the jacket door
removed except for inspection and
testing as directed in this manual.
Part number 550-142-122/0513
14
TM
GAS-FIRED WATER BOILER — Boiler Manual
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