Radiance Direct Vent Gas Heater
Pilot
Orifice
CO1044
Fig. 71 Remove pilot orifice.
Burner Orifice Conversion
1.Remove three (3) 3/8” nuts on bottom side of burner pan. (Fig. 72)
2.Carefully remove ember bed by tilting the right side up and lifting out toward the right side of the unit. (Fig. 73)
Remove Nut
Bottom View
3.Remove injector orifice from left burner bracket with a 1/2” wrench. Use a back up wrench to prevent damage to the manifold. (Fig. 74)
CO145
Fig. 74 Use two wrenches to avoid damage to manifold.
4.Install conversion orifice. (Refer to Table 2)
5.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 75.
Orifice | Orifice | Air Shutter |
| ||
Bracket |
|
|
ST918
Remove Nuts
Fig. 72 Remove three (3) nuts securing ember bed in place.
Orifice | Venturi Bracket | |
Bracket | ||
|
Pem Studs
ST919
Fig. 73 Tilt ember bed slightly to correctly place on venturi and air shutter.
CO142
Fig. 75 The air shutter setting is 1/2” (13 mm) from the orifice bracket to the edge of the air shutter.
All Models
1.Replace burner making sure venturi on bottom of ember bed aligns with orifice and is seated properly on air shutter assembly. (Fig. 73) Make sure burner is slid into place at a slight angle and opposite to how it was removed. When burner is slid into place, the three (3) pem studs should slide down through clearance holes into the bottom of the control panel.
2.Thread and tighten 3/8” nuts back onto pem studs on underneath side of control panel, reversing Step 1 shown in Figure 72.
3.Reinstall logs as per instructions on Page 26.
4.Place conversion label on valve.
3838 | 20012697 |