Takagi 110c Installation Manual And Owner's Manual

Takagi 110c Installation Manual And Owner's Manual Manual pdf 19 page image

19 PageBased on EnergyContent of 1,000BTU/Cubic ft:Divide eachappliance's BTU/hrequirement by1,000 BTU/ft3 to getthe appliance's ft3/hrequirement.Take into accountthe distance theappliance is fromthe gas meter, thenlook in the abovegas chart to properlysize the line.For sections of thegas line supplying gas to more than one appliance (Ex: Point A to Point B), add up the cubic ft per hour requirementsof 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/h requirementsand dividing by 1,000 yields a cubic ft per hour requirement of 220 cubic ft of gas per hour. The farthest applianceis the range, which is 50 ft (15.2 m) away from the meter. According to the chart above, the 50-ft (15.2 m) columnshows that Section A to B must be 1" in order to supply 220 cubic ft per hour.Waterheater199,000 BTU/h Dryer35,000 BTU/hGas meter Furnace120,000 BTU/hRange65,000 BTU/hA BC10' (3.1 m) Length1/2" Pipe size15' (4.6 m) Length1/2" Pipe size15' (4.6 m) Length1" Pipe size10' (3.1 m) Length3/4" Pipe size10' (3.1 m) Length1" Pipe size5' (1.5 m) Length1-1/4" Pipe size10' (3.1 m) Length3/4" Pipe size5' (1.5 m) Length1-1/4" Pipe sizeGas sizing example(Natural Gas)InstallationInstallation ManualPipe Size Length: ft. (m)Diameter:in.10'(3.0) 20'(6.1) 30'(9.1) 40'(12.2) 50'(15.2) 60'(18.3) 70'(21.3) 80'(24.4) 90'(27.4) 100'(30.5) 125'(38.1) 150'(45.7) 200'(61.0)1/2" 172 118 95 81 72 65 60 56 52 50 44 40 343/4" 360 247 199 170 151 137 126 117 110 104 92 83 711" 678 466 374 320 284 257 237 220 207 195 173 157 1341 1/4" 1,309 957 768 657 583 528 486 452 424 400 355 322 2751 1/2" 2,090 1,430 1,150 985 873 791 728 677 635 600 532 482 4122" 4,020 2,760 2,220 1,900 1,680 1,520 1,400 1,300 1,220 1,160 1,020 928 794Unit: Cubic feet per hour-Natural gas supply piping-Maximum delivery Capacity of Cubic Feet of Gas per Hour of IPS Pipe carrying Natural Gas with 0.60 Specific GravityBased on Pressure Drop of 0.5" W.C.Based on Energy Content of 1,000 BTU/Cubic ft: The water heater requires 140 Cubic ft/hr for the 110C, 190 Cubicft/hr for 310C, and 199 Cubic ft/hr for the 510C model.Unit: kBTU per hourPipe Size Length: ft. (m)Diameter 10'(3.0)20'(6.1)30'(9.1)40'(12.2)50'(15.2)60'(18.3)70'(21.3)80'(24.4)90'(27.4)100'(30.5)125'(38.1)150'(45.7)200'(61.0)1/2" 268 184 148 126 112 101 93 87 82 77 68 62 533/4" 567 393 315 267 237 217 196 185 173 162 146 132 1121" 1,071 732 590 504 448 409 378 346 322 307 275 252 2131 1/4" 2,205 1,496 1,212 1,039 913 834 771 724 677 630 567 511 4401 1/2" 3,307 2,299 1,858 1,559 1,417 1,275 1,181 1,086 1,023 976 866 787 6752" 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-Propane (LP) supply piping-Maximum Capacity of Propane (LP) Based on 11" W.C. supply pressure at a 0.5" W.C. pressure drop