State GTS-140-PIH User Manual download pdf (Page 21)

21 Page

Installaon

Installaon Manual

-Natural Gas Supply Piping-

Maximum delivery Capacity of Cubic Feet of Gas per Hour of IPS Pipe carrying Natural Gas with 0.60 Specific Gravity

Based on Pressure Drop of 0.5" W.C.

BasedonEnergyContentof1,000BTU/Cubicft.:Thewaterheaterrequires120Cubicft./hrforthe140(T-H3M)

model.

-Propane (LP) Supply Piping-

Maximum Capacity of Propane (LP) Based on 11" W.C. supply pressure at a 0.5" W.C. pressure drop

PipeSize Length

Diameter 10' 20' 30' 40' 50' 60' 70' 80' 90' 100' 125' 150' 200'

1/2"

172 118 95 81 72 65 60 56 52 50 44 40 34

3/4"

360 247 199 170 151 137 126 117 110 104 92 83 71

1" 678 466 374 320 284 257 237 220 207 195 173 157 134

1

1/4"

1,309 957 768 657 583 528 486 452 424 400 355 322 275

1

1/2"

2,090 1,430 1,150 985 873 791 728 677 635 600 532 482 412

2" 4,020 2,760 2,220 1,900 1,680 1,520 1,400 1,300 1,220 1,160 1,020 928 794

Unit:Cubicfeetperhour

Based on Energy Content of 1,000 BTU/Cubic ft:

Divide each appliance's BTU requirement by 1,000 BTU/h to get the appliances Cubic Ft. requirement.

Take into account the distance the appliance is from the gas meter, look in the above gas chart to properly size the line.

For sections of the gas line supplying gas to more than one appliance (Ex: Point A to Point B), add up the cubic ft.

requirements of the appliances that are being supplied by that section, and size to the farthest appliance.

For Example: The section from A to B supplies gas to the furnace, range and dryer. Adding up the BTU requirements and

dividing by 1,000 yields a cubic ft. requirement of 220 cubic ft. of gas. The farthest appliance is the range, which is 50 ft.

away from the meter. Looking at the above chart, and under the column of 50 ft., Section A to B needs to be 1" in order

to supply 220 cubic ft.

Water

heater

120,000 BTU/h

Dryer

35,000 BTU/h

Gasmeter

Furnace

120,000 BTU/h

Range

65,000 BTU/h

10' Length

1/2" Pipe size

15' Length

1/2" Pipe size

15' Length

1" Pipe size

10' Length

3/4" Pipe size

10' Length

1" Pipe size

10' Length

1/2"Pipesize

10' Length

1-1/4" Pipe size

Gassizingexample

(NaturalGas)

Unit:kBTUperhour

PipeSize Length

Diameter 10' 20' 30' 40' 50' 60' 70' 80' 90' 100' 125' 150' 200'

1/2"

268 184 148 126 112 101 93 87 82 77 68 62 53

3/4"

567 393 315 267 237 217 196 185 173 162 146 132 112

1" 1,071 732 590 504 448 409 378 346 322 307 275 252 213

1

1/4"

2,205 1,496 1,212 1,039 913 834 771 724 677 630 567 511 440

1

1/2"

3,307 2,299 1,858 1,559 1,417 1,275 1,181 1,086 1,023 976 866 787 675

2" 6,221 4,331 3,465 2,992 2,646 2,394 2,205 2,047 1,921 1,811 1,606 1,496 1,260

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 55 56

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State GTS-140-PIH User Manual Page 21

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