48
48
20306759
Radiance
®
Direct Vent Gas Heater
•
Remove injector orifice from left burner bracket with a
1/2" wrench. Use a back up wrench to prevent damage
to the manifold. (Figure 83)
•
Install conversion orifice. (Refer to Table 2)
• The air shutter is factory set according to Table 3 and
should not need adjustment. The air shutter opening
may be verified by measuring as shown in Figure 84.
Co145
back up wrench
7/07
CO145
Fig. 83 Use two wrenches to avoid damage to manifold.
CO142
air shutter meas
6/07
Orifice
Bracket
Orifice
Air Shutter
CO142
Fig. 84 The air shutter setting is 1/2" (13 mm) from the orifice
bracket to the edge of the air shutter.
FUEL CONVERSION
Fig. 86
Burner Orifice Conversion
• Remove three (3) 3/8” nuts on bottom side of burner
pan. (Figure 81)
• Carefully remove ember bed by tilting the right side up
and lifting out toward the right side of the unit. (Figure
82)
ST918
remove nuts
6/07
Remove Nuts
Remove Nut
Bottom View
Fig. 81 Remove three (3) nuts securing ember bed in place.
ST918
ST919
tilt ember bed
6/07
Pem Studs
ST919
Fig. 82 Tilt ember bed slightly to correctly place on venturi and
air shutter.
Orifice
Bracket
Venturi Bracket
