Instructions / Assembly

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To be able to use a PVC termination, a short piece of PP pipe will need to be cut, as shown below, to transition from the bell end of
the pipe to the PP to PVC adapter.
A. Water Heater Location
❑ Close to vent locations
❑ Located indoors and protected from freezing temperatures
❑ Proper clearance from combustible surfaces
❑ Air supply free of corrosive elements and flammable vapors
❑ Sufficient room to service the heater
❑ Water heater protected from water damage
B. Water Supply
❑ Water heater completely filled
❑ Air purged from water heater and piping
❑ Water connections tight and free of leak
C. Gas Supply
❑ Gas line equipped with shut-off valve, union, and sediment
trap
❑ Minimum pipe size 1/2"; No flex pipe
❑ Soap and water solution used to check all
connections for gas leaks
❑ Approved pipe joint compound used
D. Relief Valve
❑ Discharge line run to open drain
❑ Discharge line protected from freezing
E. Venting
❑ Water heater vented separately from all other appliances
❑ All vent and air intake pipe connections are secure
❑ Vent and air intake pipes properly supported at regular
intervals
❑ Precaution on taken to avoid moisture damage around vent
termination
❑ Drain tube attached to sound damper if needed. If not,
ensure cap is in place
F. Condensate
❑ Condensate trap installed and primed.
❑ Condensate neutralizer installed
G. Wiring
❑ Correct power supply (120VAC)
❑ Electrical connections are tight
❑ Water heater is properly grounded with proper polarity.
INSTALLATION CHECK LIST
For maximum pipe capacity for installations in Canada, refer to CAN/CSA B149.1. For natural gas, refer to Tables A.1 through A.17. For propane (LP) gas, refer to Tables
B.1 through B.12.
Nominal Iron Pipe Size
Inches
Internal Diameter
Inches
Length of Pipe, Feet
10 20 30 40 50 60 70 80 90 100 125 150 175 200
1/2 0.622 132 90 73 62 55 50 46 43 40 38 34 31 28 26
3/4 .824 278 190 152 130 115 105 96 90 84 79 72 64 59 55
1 1.049 520 350 285 245 215 195 180 170 160 150 130 120 110 100
1 1/4 1.380 1,050 730 590 500 440 400 370 350 320 305 275 250 225 210
1 1/2 1.610 1,600 1,100 890 760 670 610 560 530 490 460 410 380 350 320
2 2.067 3,050 2,100 1,650 1,450 1,270 1,150 1,050 990 930 870 780 710 650 610
2 1/2 2.469 4,800 3,300 2,700 2,300 2,000 1,850 1,700 1,600 1,500 1,400 1,250 1,130 1,050 980
3 3.068 8,500 5,900 4,700 4,100 3,600 3,250 3,000 2,800 2,600 2,500 2,200 2,000 1,850 1,700
4 4.026 17,500 12,000 9,700 8,300 7,400 6,800 6,200 5,800 5,400 5,100 4,500 4,100 3,800 3,500
Length Pipe Table
For U.S. Installations
Maximum Capacity of Pipe in Cubic Feet of Gas per Hour for Gas Pressures of 0.5 psig or Less and a Pressure Drop of 0.3 Inch Water Column
Based on a 0.60 Specific Gravity Natural Gas; If 1.5 Specific Gravity L.P. Gas is used, multiply capacity by 0.63