Lopi Berkshire MV Owner's Manual page 41

Optional Equipment
4. Remove the burner and place it aside.
5. Install the LP (propane) pilot orifice following the instructions below.
(a) Use a 7/16" open-end wrench to remove the pilot hood.
(b) Remove and discard the Natural Gas (NG) orifice. Place the LP orifice in the pilot assembly then
replace the pilot hood, tightening the pilot hood until it is snug (do not over-tighten).
6. Remove the burner orifice and discard. Install the LP (propane) orifice.
© Travis Industries
Natural Gas Orifice = .020N
LP (Propane) Orifce = .014LP
a
7/16" Wrench
a
Remove the manifold cover to allow access to the burner orifice.
Then slide the air shutters to provide additional room.
Screw the LP orifice until orifice
protrudes 15/16" (23.8mm)
indicating full insertion (use
wrench to secure manifold when
re-attaching orifice).
(
for qualified installers only)
.020N
or
.018N
.014LP
9/16" Wrench
1/2" Wrench
Rear
Orifice
d
15/16"
23.8mm
10/2/17 - 1454
b
Use a 9/16" wrench to secure the
b
manifold while removing the orifice
with a 1/2" wrench.
c
Apply thread sealant to the LP orifice prior
to installation. Use the chart below to
identify the correct orifices.
Look here for the orifice identification
LP NG
#53 #41
41
Berkshire MV