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Installation
17
1300003 (EN)
Gas Connection
IMPORTANT: The installation must comply with
local codes or, in the absence of local codes, with the
current National Fuel Gas Code, ANSI Z223.1 in
the U.S.A., or the current CAN/CSA B149,
Installation Codes in Canada.
Install a shut-off valve to isolate gas connections from
rest of installation. Gas models must be connected to
the existing gas pipes. The gas supply pipe size must
have sufficient dimensions to minimize pressure loss.
Obtain specific gas supply pipe size from the gas
supplier. Refer to
Table 3
for general pipe size.
When connecting to a gas line, an equipment shut-off
valve must be installed within 6 feet (1.8 m) of the
finisher. A 1/8 inch NPT pipe plug must be installed as
shown. Refer to
Figure 8
.
IMPORTANT: Be certain finisher is configured for
type of gas being used. Refer to
Gas Conversion
section for additional information.
Gas Pipe Size Required for 1000 Btu Natural Gas — 0.64 Specific Gravity
at 7 ± 1.5 inches (17.4 ± 4 mbar, 1.74 ± 0.37 kPa) Water Column Pressure
Equivalent Length
Gas
Appliances
Total Btu/hr.
25 feet
(7.63 m)
50 feet
(15.25 m)
75 feet
(22.88 m)
100 feet
(30.50 m)
125 feet
(38.13 m)
150 feet
(45.75 m)
Based on 0.3 in. Water Column Pressure Drop for Length Given
Sizes shown in inches (mm)
100,000
120,000
140,000
160,000
180,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
900,000
1,000,000
0.75 (19.05)
0.75 (19.05)
0.75 (19.05)
0.75 (19.05)
1 (25.40)
1 (25.40)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
0.75 (19.05)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
1 (25.40)
1 (25.40)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2.5 (63.50)
2.5 (63.50)
1 (25.40)
1 (25.40)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
2 (50.80)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
1 (25.40)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
2 (50.80)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
Table 3