DVB4136 Direct Vent Gas Fireplace
3.Using a 1/2” open end wrench remove the orifices. (Fig. 69)
Front Burner Orifice (Refer to Table on Page 42)
Rear Burner Orifice (Refer to Table on Page 42)
Manifold
CO130
Fig. 69 Burner orifice replacement.
4.To convert burner orifices, remove the orifices in the manifold and replace with the proper orifice listed in the table on Page 42.
5.To convert the air shutter, refer to the adjustment listed in the table. NOTE: The air shutter on the main burner is changed when converting to different gases.
8.Reassemble the burner housing assembly, the burner tube assembly and the fettle in reverse order.
Pilot Orifice Conversion
NOTE: It is not necessary to remove the pilot tube for conversion.
1.Remove pilot hood by lifting up. (Fig. 70)
2.Remove pilot orifice with Allen wrench. (Fig. 71)
3.Install conversion pilot orifice.
4.
Pilot Hood |
Pilot |
Bracket |
CO105a |
Fig. 70 Remove pilot hood. |
Fuel Conversion Instructions
Honeywell Comfort Control Valve ONLY
WARNING: The conversion must only be undertaken by a qualified, certified gas ap- pliance installer.
Installation Precautions
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!
Conversion Procedure
1.Open bottom grille to gain access to valve. Remove glass door. (Refer to “Window Frame Assembly Re- moval Section” Page 24, Fig. 47)
2.Remove logs if previously installed. CAUTION: Logs may be hot!
3.Remove and replace plug on lower right hand side of the valve; Red for LP and blue for NG. (Fig. 72)
| Motor Top Cap |
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| Piezo Ignitor |
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| IL |
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Local/ |
| Pilotstat |
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| Plug |
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Remote Switch | Knob |
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| Antenna |
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| FP1037 | |
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Fig. 72 | Comfort control valve. |
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4.Remove motor top cap. Depress and turn center plunger until arrow points to correct screw. Red for LP and Blue for NG. NOTE: Plunger will “snap” into NG position when arrow is close to blue screw. It will not “snap” at LP (Red) position. (Fig. 73)
Index Tab | Allen Wrench |
Snap Ring |
|
Center
Plunger
Blue - NG 
Red - LP
Motor Top Cap
LOCAL
FP1037b
CO106a |
Fig. 71 Remove pilot orifice. |
42 |
Fig. 73 Depress and turn center plunger.
Burner Orifice Conversion
Refer to Burner Orifice Conversion on Page 40.
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