Vermont Casting 3966 Ventilation Hood User Manual


 
34
Pinnacle & Stardance Direct Vent - Rear Vent Gas Heaters
20007066
7. Hold the burner at the right hand side and lift to
clear the right burner leg. Then pull to the right to
clear the injectors on the left hand side.
8. Remove injector orifices from left burner leg using
1/2” wrench. (Fig. 64)
9. Install conversion orifices. (See Table 2)
Models 3920, 3930, 4065, 4070 (R Models) Only
10.Remove cap from Hi-Lo knob. This can be accom-
plished by lifting the plastic cap off the screw. (Fig.
58)
11.Remove the screw from center of Hi-Lo knob with
small screwdriver turning counterclockwise. (Fig. 58)
12.Insert blue painted screw when converting to natural
gas and red painted screw when converting to LP.
13. Tighten screw, replace cap.
14. Locat pilot. (Fig. 57)
15. Replace pilot orifice:
Pilot Type 1
Remove pilot hood by lifting up. (Fig. 59) NOTE: It
is not necessary to remove the pilot tube for conver-
sion.
Remove pilot orifice with allen wrench. (Fig. 60)
Install the conversion orifice.
Reinstall pilot hood. Be sure to align hood with
index tab.
Index Tab
Snap Ring
Allen Wrench
CO106a
Fig. 60 Remove pilot orifice.
L
O
H
I
L
O
H
I
Cap
Hi-Lo
Knob
Lift Open
Center Screw
CO100
Fig. 58 Remove center screw from Hi-Lo knob.
Pilot Hood
Pilot
Bracket
CO105a
Fig. 59 Remove pilot hood.
Pilot type 2
Loosen pilot hood turning counterclockwise using a
7/16” wrench. (Fig. 61)
Remove pilot orifice with needlenose pliers. (Fig.
62)
Install the conversion orifice.
Reinstall pilot hood and tighten until mark on pilot
hood aligns with mark on pilot bracket.
Pilot Hood
Index
Marks
Pilot Bracket
CO105
Fig. 61 Remove pilot hood. (Your pilot may have a different
appearance.)
Pilot
Orifice
CO106b
Fig. 62 Remove pilot orifice.