Nordyne R6GP-072 Series, Installation Instructions Manual

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CAPACITY OF BLACK IRON GAS PIPE (CU. FT. PER HOUR)
FOR NATURAL GAS (SPECIFIC GRAVITY - 0.60)
NOMINAL BLACK IRON PIPE
DIAMETER (IN.)
LENGTH OF PIPE RUN (FT)
10 20 30 40 50 60 70 80
1/2 130 90 75 65 55 50 45 40
3/4 280 190 150 130 115 105 95 90
1 520 350 285 245 215 195 180 170
1 1/4 1050 730 590 500 440 400 370 350
1 1/2 1600 1100 890 760 670 610
NOTES
The cubic feet per hour listed in the table above must be greater than the cubic feet per hour of gas fl ow required by the furnace. To determine the
cubic feet per hour of gas fl ow required by the furnace, divide the input rate of the furnace by the heating value (from gas supplier) of the gas:
Cubic Feet Per Hour Required =
Input To Furnace (Btu/hr)
Heating Value of Gas (Btu/Cu. Ft.)
Table 14. Black Iron Gas Pipe Capacities
Table 15. Orifi ce or Drill Size for Natural and Propane (LP) Gases
ALTITUDE ABOVE SEA LEVEL
0 to
2,000 FT
2,001 to
4,000 FT
4,001 to
6,000 FT
6,001 to
8,000 FT
8,001 to
10,000 FT
UNIT MODEL
NUMBER
GAS
TYPE
HEATING
INPUT
(BTU/HR)
NUMBER
OF
BURNERS
ORIFICE SIZE
R6GP-072*-100C
Natural 100,000
3
36 38 40 41 43
Propane 85,000 53 54 54 55 55
R6GP-072*-166C
Natural 166,000
5
36 38 40 41 43
Propane 141,000 53 54 54 55 55
R6GP-090*-200C
Natural 200,000
6
36 38 40 41 43
Propane 175,000 51 52 52 52 53
R6GP-120*-235C
Natural 235,000
7
36 38 40 41 43
Propane 205,000 51 52 52 52 53
* Refer to Instructions for High Altitude Deration (pages 11 - 12) to determine heat exchanger capacity at increased elevations.
GAS INFORMATION
Table 16. Heating Rise/Range
MODEL
GAS
TYPE
HEATING
INPUT
HEATING
OUTPUT
HEATING RISE
RANGE (°F)
CFM RANGE
1,950 2,100 2,250 2,400 2,550 2,700 SCFM
R6GP-072*-100C
Natural 100,000 80,000
15 - 45
38 35 33 31 29 27
RISE (°F)*
Propane 85,000 68,000 32 30 28 26 25 23
1,950 2,100 2,250 2,400 2,550 2,700 SCFM
R6GP-072*-166C
Natural 166,000 133,000
35 - 65
63 59 55 51 48 46
RISE (°F)*
Propane 141,000 112,800 54 50 46 44 41 39
2,425 2,625 2,800 3,000 3,188 3,375 SCFM
R6GP-090*-200C
Natural 200,000 157,000
30 - 60
60 55 52 48 46 43
RISE (°F)*
Propane 175,000 137,000 52 48 45 42 40 38
3,250 3,500 3,750 4,000 4,250 4,500 SCFM
R6GP-120*-235C
Natural 235,000 185,000
25 - 55
54 50 46 44 41 39
RISE (°F)*
Propane 205,000 164,000 47 43 40 38 36 34
* At elevations of 2,000 feet or less.