Continental Refrigerator C97 Series, Инструкция по установке и эксплуатации

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W415-1080 / A / 08.28.13
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13.0 CONVERSIONS
FIGURE 29 - INSHOT BURNER ASSEMBLY
In Canada, the modi fi cations for high altitude are based on a 10% reduction of input capacity for elevations
from 2000 - 4500 feet (610 m - 1372 m).
In the United States, the modi
fi cations for high altitude are based on a 4% reduction of input capacity for every
1000 feet (305 m) above 2000 feet (610 m) above sea level. Table 6 illustrates the impact of altitude for se-
lected elevations. Consult with local fuel suppliers or authorities to determine local regulations or customs.
13.1 HIGH ALTITUDE CONVERSION
TABLE 6 - HIGH ALTITUDE SPECIFICATIONS (U.S.A.)
MODEL ALTITUDE
ORIFICE SIZE (DMS)
NATURAL
60/80
100/120
0-2000 (0-610 m) 45
2000-3000 (610-914 m) 48
3000-4000 (914-1219 m) 49
4000-5000 (1219-1524 m) 50
5000-6000 (1524-1829 m) 51
6000-7000 (1829-2134 m) 52
7000-8000 (2134-2438 m) 53
8000-9000 (2438-2743 m) 54
9000-10000 (2743-3048 m) 55
Gas input ratings are certifi ed for elevations to 2000 ft (610 m). For eleva-
tions above 2000 ft (610 m), reduce ratings 4% for each 1000 ft (305 m)
above sea level.
H12.8.3
WHITE-RODGERS TWO 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 31) counterclockwise out one turn maxi-
mum, 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).
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. Turn off gas and electrical supply to furnace, remove the manometer hose from the inlet pressure tap boss,
and tighten the inlet pressure tap screw using the 3/32” Allen wrench. (Clockwise, 7 in-lb minimum).
6. Turn on the gas supply and electrical power to the furnace.
13.2 NATURAL TO LP GAS CONVERSION
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.
13.3 CONVERSION STEPS
13.4 CHECKING THE INLET GAS PRESSURE
Refer to Conversion NG to LP Kit (W370-0018) for complete instruction.