Rinnai V2532FFUC Manual page 27

I N S TA L L E R ' S I N S TA L L AT I O N I N S T R U C T I O N S
(table assumes .3 inch pressure drop, specific gravity of .60)
Nominal
Iron Pipe
Size
Inches
10 20
3/4 278 190
1 520 350
1-1/4 1050 730
1-1/2 1600 1100
After determining the length of pipe required select the pipe size that will supply the
cubic feet per hour of gas required for the input rating of the Integrity V2532C.
The formula for figuring the cubic feet per hour required is:
*Gas input requirement is on the water heater data plate
*The heating value of the gas can be obtained from the local Natural Gas Utility
(table assumes 11 inches of water column pressure at the inlet, .5 inch drop)
Nominal
Iron Pipe
Size
Inches
10
1/2 275
3/4 567
1 1071
1-1/4 2205 1496 1212 1039
Model V2532FFUC
Gas Pipe Sizing Charts
Capacity Table for Natural Gas
Length of Pipe in Feet
30 40 50
152 130 115
285 245 215
590 500 440
890 760 670
Gas Input of Integrity V2532C(BTU/HR)
CFH =
Heating Value of Gas(BTU/FT
Capacity Table for LP Gas
BTUH of undiluted liquified petroleum gases
Length of Pipe in Feet
20 30 40
189 152 129
393 315 267
732 590 504
cubic feet / hour
60 70 80
105 96 90
195 180 170
400 370 350
610 560 530
50 60 70
237 217 196
448 409 378
913 834 771
2 7
90 100 125
84 79 72
160 150 130
320 305 275
490 460 410
)
3
80 90 100 125
185 173 162 146
346 322 307 275
724 677 630 567
150 175 200
64 59 55
120 110 100
250 225 210
380 350 320
150
252
511
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