W415-0973 / B / 08.28.13
37
IOM
13.0 CONVERSIONS
13.1 HIGH ALTITUDE CONVERSION
FIGURE 27 - INSHOT BURNER ASSEMBLY
H18.1
In Canada, the modi
fi
cations for high altitude are
based on a 10% reduction of input capacity for
elevations from 2000 - 4500 feet (610m - 1372m).
In the United States, the modi
fi
cations for high
altitude are based on a 4% reduction of input capacity
for every 1000 feet (305m) above 2000 feet (610m)
above sea level. Table 6 illustrates the impact of
altitude for selected elevations. Consult with local fuel
suppliers or authorities to determine local regulations
or customs.
TABLE 6 - HIGH ALTITUDE SPECIFICATIONS (U.S.A.)
Input
K/Btu/hr
ALTITUDE
ORIFICE SIZE (DMS)
NATURAL
LP GAS
60/80
100/120
0-2000 (0-610 m)
45
55
2000-3000 (610-914 m)
48
56
3000-4000 (914-1219 m)
49
57
4000-5000 (1219-1524 m)
50
58
5000-6000 (1524-1829 m)
51
60
6000-7000 (1829-2134 m)
52
61
7000-8000 (2134-2438 m)
53
62
8000-9000 (2438-2743 m)
54
63
9000-10000 (2743-3048 m)
55
65
Gas input ratings are certifi ed for elevations to 2000 ft. For elevations
above 2000 ft, reduce ratings 2% for each 1000 ft above sea level.
TABLE 6a - HIGH ALTITUDE SPECIFICATIONS (U.S.A.)
Input
K/Btu/hr
ALTITUDE
ORIFICE SIZE (DMS)
NATURAL
LP GAS
45
0-2000 (0-610 m)
50
57
2000-3000 (610-914 m)
53
58
3000-4000 (914-1219 m)
54
59
4000-5000 (1219-1524 m)
55
60
5000-6000 (1524-1829 m)
56
62
6000-7000 (1829-2134 m)
57
63
7000-8000 (2134-2438 m)
58
64
8000-9000 (2438-2743 m)
59
65
9000-10000 (2743-3048 m)
60
67
H12.8.2
H18.2
NATURAL TO LP GAS: This series furnace is manufactured as a natural gas appliance that may be converted
to LP gas through use of the
Conversion Kit part number W370-0018
. This kit contains the conversion kit
instructions, ori
fi
ces needed for all models, the regulator springs for the gas valve, and a label to af
fi
x adjacent to
the appliance rating plate to alert subsequent service technicians of the conversion.
The parts removed for this
conversion must remain with the furnace for any future conversion back to natural gas.
H18.3
Refer to Conversion NG to LP Kit (W370-0018) for complete instruction.
WHITE-RODGERS 36J24-214 SINGLE STAGE GAS VALVE
1. Turn off the gas and electrical supply to the furnace.
2. Back inlet pressure test screw (inlet pressure boss, see FIGURE 28 & 29) counterclockwise out one turn
maximum, with a 3/32” Allen wrench. Attach a hose and calibrated U-tube or digital manometer to the inlet
pressure boss. Hose should overlap boss 3/8”. The manometer must have a scale range of at least 0” to
15” of water column.
3. Turn ON the gas and electrical supply and operate the furnace and all other gas consuming appliances on
the same gas supply line. Using a leak detection solution, check for leaks around the gas valve/manifold
connection and the burner ori
fi
ces. Repair any leaks before continuing.
4. Measure furnace gas inlet pressure with burners
fi
ring. Inlet pressure must be within the range speci
fi
ed on
the furnace rating plate. 5-7” w.c. (Natural Gas) or 11-13” w.c. (LP).
If the inlet pressure differs from the rating plate, make the necessary adjustments to pressure regulator,
gas piping size, etc. and/or consult with local gas utility.
5
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13.2 CONVERSION STEPS
13.3 CHECKING THE INLET GAS PRESSURE
Summary of Contents for 9500 series
Page 25: ...W415 0973 B 08 28 13 25 IOM FIGURE 14A DIRECT VENT TERMINAL CLEARANCES...
Page 26: ...W415 0973 B 08 28 13 26 IOM IOM FIGURE 14B NON DIRECT VENT TERMINAL CLEARANCES...
Page 55: ...W415 0973 B 08 28 13 55 IOM 23 0 SERVICE HISTORY 43 1...
Page 56: ...W415 0973 B 08 28 13 56 IOM IOM 44 1 24 0 NOTES...
