909 SE EVERETT MALL WAY CRUCIBLE BREWERY 2025-03-28

Natural Gas Table 28: Pressure Drop 3.0 in. w.c. Table 29: Example Rinnai Model Gas Input: Intended use: Initial supply Schedule 40 Metallic Pipe pressure of 8.0 in. w.c. Inlet Pressure: Less than 2 psi A Btu/hr or greater. Specific Gravity: 0.60 Additional Appliance Total Gas Input: Information in table Nominal Pipe Size (in.) B Btu/hr obtained from NFPA 54, ANSI Z223.1-2015. 1/2 3/4 1 1 1/4 Heating Value of Gas: Length in ft (meters) Capacity in Cubic Feet of Gas per Hour C 1,000 1 Btu/ft' 10 (3) 454 949 1,790 3,670 Cubic Feet Per Hour(CFH): 20 (6) 312 652 1,230 2,520 A + B 30 (9) 250 524 986 2,030 (CFH) = C 40 (12) 214 448 844 1,730 1 DDD+��DDD 50 (15) 190 397 748 1,540 (CFH) = 1,000 60 (18) 172 360 678 1,390 Answer: 70 (21) 158 331 624 1,280 ft3/hr 80 (24) 147 308 580 1,190 For this example, the pipe diameter 90 (27) 138 289 544 1,120 must be at least 1/2 in. pipe size and 100 (30) 131 273 514 1,060 20 ft(6 m) in length. Propane (Undiluted) Table 30: Pressure Drop 0.5 in. w.c. Table 31: Example Rinnai Model Gas Input: Information in table obtained from Schedule 40 Metallic Pipe NFPA 54,ANSI Z223.1-2015. A 199,OOo Btu/hr Inlet Pressure: 11 in w.c. Specific Gravity: 1.50 Additional Appliance Total Gas Input: Nominal Pipe Size (in.) B 1 05,000 1 Btu/hr 1/2 3/4 1 1 1 1 1/4 Total Gas Input: Length in ft (meters) Capacity in Thousands of Btu per Hour Total Gas 10 (3) 290 608 1,150 2,350 Input — A + B 20 (6) 200 418 787 1,620 30 (9) 160 336 632 1,300 Total Gas 40 (12) 137 287 541 1,110 Input + o ;000 50 (15) 122 255 480 985 Answer: 60 (18) 110 231 434 892 80 (24) 101 212 400 821 Total Gas Input - 204-,DDD Btu/hr 100 (30) 94 197 372 763 For this example, the pipe diameter must be at least 1/2 in. nominal pipe size and 10 ft (3 m) in length. Rinnai Tankless Water Heater Installation and Operation Manual 63