Instructions / Assembly

30
A. Water Heater Location
❑ Close to area of vent.
❑ Indoors and protected from freezing temperatures.
❑ Proper clearance from combustible surfaces
observed and water heater is not installed on a
carpeted floor.
❑ Air supply free of corrosive elements and flammable
vapors.
❑ Provisions made to protect area from water
damage.
❑ Sufficient room to service the heater.
B. Water Supply
❑ Water heater completely filled with water.
❑ Water heater and piping air vented.
❑ Water connections tight and free of leaks.
C. Gas Supply
❑ Gas line equipped with shut-off valve, union, and
sediment trap/drip leg.
❑ Approved pipe joint compound used.
❑ Minimum pipe size of 3/4"; NO flex pipe.
❑ Recommended a minimum of 10" WC inlet
pressure for natural gas.
❑ Soap and water solution used to check all
connections and fittings for possible gas leak.
❑ Gas company inspected installation (if required).
D. Relief Valve
❑ Discharge line run to open drain.
❑ Discharge line protected from freezing.
E. Venting
❑ All pipe connections are secure (at blower, vent
terminals and for each pipe joint connection), and
all pipes properly supported.
❑ Vent terminals mounted properly in allowed
locations, with proper clearances .
F. Condensate
❑ Condensate trap installed and primed.
❑ Condensate neutralizer installed (if required).
G. Wiring
❑ Correct power supply (120 VAC).
❑ Electrical connections are tight.
❑ Water heater is properly grounded with proper
polarity.
Installation Check List
TABLE 2
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
Nominal Internal
Iron Pipe Size, Diameter
Inches Inches 10 20 30 40 50 60 70 80 90 100 125 150 175 200
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 of Pipe, Feet
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.