MHSC Oxford OXDV30NV Installation And Operating Manual page 28

Oxford Direct Vent / Natural Vent Gas Heater
E
F
Fig. 51 Replace regulator.
FC108
pilot Orifice conversion
SIT
1. Locate pilot. (Fig. 49)
regulator
2. Replace pilot orifice.
conversion
pilot Type 1
10/03
• Remove pilot hood by lifting up. (Fig. 52) Do not
remove snap ring to remove pilot hood. NOTE: It is
not necessary to remove the pilot tube for conver-
sion.
• Remove pilot orifice with allen wrench. (Fig. 53)
• Install the conversion orifice.
• Reinstall pilot hood. Be sure to align hood with
index tab.
Pilot Hood
Pilot
Bracket
Fig. 52 Remove pilot hood.
Index Tab
Snap Ring
Fig. 53 Remove pilot orifice.
CO106a
DV360/580
Gas Conversion
28
Pilot2
1/28/00 djt
D
FC108
CO105a
Allen Wrench
CO105a
gas conversion
Pilot
1/28/00 djt
CO106a
pilot type 2
• Loosen pilot hood turning counterclockwise using
a 7/16" wrench. (Fig. 54) NOTE: You may use
penetrating oil to prevent pilot hood threads from
seizing up.
• Remove pilot orifice with needlenose pliers. (Fig.
55) NOTE: Use a wrench to hold pilot tube in
place while removing the orifice.
• Install the conversion orifice.
• Reinstall pilot hood and tighten until mark on pilot
hood aligns with mark on pilot bracket.
NOTE: Be sure burner leg remains at a 90° angle to
firebox base after conversion.
Index
Marks
Pilot Bracket
Fig. 54 Remove pilot hood. (Your pilot may have a different
appearance).
Fig. 55 Remove pilot orifice.
21. Replace burner. Slide the burner in at an angle
with left side lower than the right side. Slide the left
CO106a
side onto the injectors, making sure the burner leg
remains at a 90° angle to the base. Lower the right Gas Conversion
hand side down in to place. Make sure the burner is
Pilot (Vermont)
as far left as possible and the injector shoulders are
7/19/99 djt
inside the burner.
NOTE: It is very critical to keep the left burner leg,
which holds the injectors, at a 90° angle to the base.
(Fig. 56) This keeps the orifices aligned with the
tubes inside burner. Failure to do so could affect the
flame appearance and performance of the unit.
22.Place conversion label on valve.
23.Reinstall the right and left log bracket assembly.
24.Reinstall the rear log bracket.
Pilot
CO105
CO105
Pilot Orifice
Gas Conversion
Pilot
2/15/99 djt
CO106b
30005123