
39
DVB4136 Direct Vent Gas Fireplace
20012322
Conversions must be completed by qualified personnel
Fuel Conversion Instructions
To convert the DVB4136 units for use with a different
gas follow these instructions. Before proceeding, turn
control knob on valve to
“OFF”
and turn gas supply
OFF
. Turn
OFF
any electricity that may be going to the
appliance.
CAUTION: Logs may be HOT! Allow to cool before
proceeding.
1. Open louvre assembly bottom to gain access to
valve. Remove window frame assembly. (Refer to
“Window Frame Assembly Removal”, Page 25, Fig.
48)
2. Remove logs if previously installed.
American Flame Valve
1. Remove rubber cap from valve. (Fig. 66)
2. Push pin in and turn so line on the end of the pin
lines up with the appropriate gas. NAT for natural
gas and LP for propane.
3. Replace cap.
4. Remove minimum rate screw and replace with new
minimum rate screw supplied in kit. Refer to Table 1
on Page 42.
NOVA SIT820 Valve
1. Using the TORX T20
bit, remove and discard
the three (3) pressure
regulator mounting
screws (A), pressure
regulator tower (B) and
the spring and dia-
phragm assembly (C).
(Fig. 67)
2. Insure the rubber
gasket (D) is properly
positioned and install
the new HI/LO pressure
regulator assembly to
the valve using the new
screws (E) supplied
with the kit. Tighten the
screws securely. (Ref.
torque = 25 in/lb) (Fig.
68)
FC107
SIT820
valve conversion
10/03
A
B
C
OFF
PILO
T
ON
FC107
Fig. 67
Remove mounting
screws, pressure regulator
tower and spring and dia-
phragm assembly.
3. Install the enclosed conversion label (F) to the valve
body where it can easily be seen. (Fig. 68)
Valve conversion is complete.
D
E
F
FC108
SIT
regulator
conversion
10/03
OFF
PILOT
ON
FC108
Fig. 68
Replace regulator.
Burner Orifice Conversion
1. Remove the screws that secure the fettle and the
burner tube assembly, located behind the burner
tube assembly. Remove the three (3) screws that
secure the burner housing assembly to the base pan
at the right and left end of the burner housing as-
sembly. (Fig. 69)
2. Remove the fettle and the burner tube assembly.
Slide the burner housing assembly to the right and
up to free the orifice.
3. Using a 1/2” open end wrench remove the orifices.
(Fig. 70)
Fig. 69
Remove screws holding burner housing assembly
and burner tube assembly.
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Burner Housing
Assembly
Pilot Location
Remove
Screws
Burner Tube Assembly
Remove Screws
Remove Screws
Fettle
FP1817
Inlet
PILOT
Pilot Adj.
Outlet
MAIN
FP1769
AF4000 valve face
2/07
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Main Connection
Rubber Cap
Gas Type Marker
(Shown in LP posi-
tion)
FP1769a
Minimum
Rate Screw
Fig. 66
Remove rubber cap and adjust gas type marker.
Содержание DVB4136
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