Vermont Casting RADVTCB - Manual (Page 40)

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Radiance Direct Vent Gas Heater
20012697
Table 3. Air Shutter Adjustment
Natural Gas Natural Gas LP
Model High Altitude
RADVT/RADVC 1/2” Open 1/2” Open 1/2” Open
Table 4. High Altitude Orifice
[Required for altitudes above 2000’ (610 m) up to 4500’ (1,370 m)]
Input (BTU/h)
Model Orifice Part # Minimum Maximum
RADVT/RADVTC #33 / 0.113” 20012554 25,000 36,000
(Natural gas only)
Table 2. Injector Orifice Size Matrix
Conversion to Natural Gas
Input (BTU/h)
Model Kit # Orifice Part # Minimum Maximum
RADVT 20012899
RADVTC 20012902
#31 / 0.120” 20006927 25,000 38,000
Conversion to LP
Input (BTU/h)
Model Kit # Orifice Part # Minimum Maximum
RADVT 20012729
RADVTC 20012900
1.75 mm 20012946 25,000 36,000
*LP models do not need re-orificed up to 4500’ (1,370 m) above sea level.
5. Replace glass and stove front.
6. Restore gas to system and relight appliance accord-
ing to Lighting Instructions on Page 31.
7. Leak check the system using a gas leak detector
solution.
8. Relight the main burner in both the “HI” and “LO” po-
sitions to verify proper burner ignition and operation.
Conversion is complete.