Fulton Heating Solutions, Inc. -- PHW Manual -- 2010-0713
Page 29
6. Attach a 1/4" water supply to the compression fitting on the float. The
water line must be connected to an uninterruptible supply. Fulton
recommends connecting it before the “Fast-Fill” valve to the boiler supply
but after the back flow preventer to avoid contamination of a potable
water supply. Maximum allowable water pressure to the compression
fitting is 100 PSI.
14. Installing Gas Piping (Figure 4)
Note
See chart for required gas line size, based on overall length of pipe from meter
plus equivalent length of all fittings. Approximate sizing may be based on 1,000
BTU for 1 cubic foot of natural gas.
Pipe Capacity for Natural Gas
Nominal
Iron
Pipe
Size
Internal
Diameter
Equivalent
Pipe
Length
90
o
Elbow Tee
Maximum Capacity in Cubic Feet of Natural Gas Per
Hour Pressure Drop of 0.5” W.C.
Equivalent Length of Pipe in Feet
Inches Inches Feet Feet 20 40 60 80 100 150 200
1.25 1.38 3.50 6.90 950 ---- ---- ---- ---- ---- ----
1.50 1.61 4.00 8.00 1460 990 810 ---- ---- ---- ----
2.00 2.07 5.20 10.30 2750 1900 1520 1300 1150 950 800
2.50 2.47 6.20 12.30 4350 3000 2400 2050 1850 1500 1280
3.00 3.07 7.70 15.30 7700 5300 4300 3700 3250 2650 2020
4.00 4.03 10.10 20.20 15,800 10,900 8800 7500 6700 5500 4600
a) Gas Piping should be installed in accordance with National Fuel Gas Code, ANSI Z223 1
1991 or latest addenda and any other local codes which may apply.
In Canada gas installations must be in accordance with the current CAN/CGA B149.1
and .2 and/or local codes.
Figure 4
Typical
To Next Page
Loading...
