Installing propane orifi ce —
EVG 110 only
If the boiler is already installed
— You must turn
off electrical supply to the boiler and close the external
manual gas shut-off valve to isolate the boiler during
conversion. Allow the boiler to cool if it has been
operating.
Following conversion of an installed boiler, follow
all instructions in this manual to start up the boiler
and verify operation of the boiler and all system
components.
1. Locate the propane orifi ce from the propane conversion kit bag.
2. Verify that the stamping on the orifi ce is correct for the model
size (see Figure 13 ).
3. If the jacket door is not already removed, remove it.
4. Locate the gas valve and venturi (see Figure 14 ).
5. Release the gas line from the silencer bracket clip (item 5, page
18) and rotate it out of the way.
6. Use a T25-mm torx bit to remove the two (2) bolts (item 3)
that secure the gas valve to the venturi.
Figure 13
Propane gas orifi ce identifi cation
EVG
110 (may be stamped
3.7
only)
Figure 14
EVG 110 Gas valve and venturi
Part number 550-100-191/0917
17
®
g
as-fired water boiler —
70/110/155
Boiler Manual
Converting boiler to propane — EVG 110
1
Gas valve
2
Venturi
3
Gas valve screws to venturi
Support the gas valve after disconnecting
it. DO NOT allow it to hang from the gas
valve fl ex line.
When re-attaching the gas
valve, ensure the gas valve propane orifi ce
is properly seated in rubber boot (item 6,
Figure 15, page 18 ) and is in place and in good
condition. Inspect the gas valve fl ex line to
ensure it is undamaged and in good condition.
Prepa re boiler for propane —
EVG 110 only (if required)
Propane operation
ALL Evergreen
®
boilers must be converted
for propane operation
.
Converting an existing natural gas-fi red
boiler for propane
— For a boiler already
installed, you must turn off gas supply, turn
off power and allow boiler to cool before
proceeding. You must also completely test the
boiler after conversion to verify performance
and start up the boiler following instructions
beginning on page 91 of this manual.
Verify 110 propane gas orifice size
—
See Figure 13 . Verify when installing that the
orifi ce size marking is correct. Orifi ces will be
stamped as in illustration or “3.7” for model
110.
Failure to comply could result in severe personal
injury, death or substantial property damage.
Содержание Evergreen EVG 110
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