Honeywell 6261, Manual To Operations

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Pipe Size (in)
kW 0.75" 1" 1.25" 1.5" 2" 2.5" 3"
11 20 85 370 800
15 40 190 425
20 20 130 305 945
25 85 203 552
35 35 95 370 915
45 50 230 585
60 25 145 390 1185
70 5 75 225 710
80 65 195 630
100 40 140 460
130 50 215
150 30 150
Pipe Size (in)
kW 0.75" 1" 1.25" 1.5"
11 30 125 200
15–17 10 60 125
20 10 60 125
Fuel Pipe Sizing Natural Gas
NATURAL GAS INSTALLATION
Note:
– Pipe sizing is based on 0.5" H
2
O pressure drop.
– Sizing includes a nominal number of elbows and tees.
– Please verify adequate service and meter sizing.
– Tables based on black pipe.
Table 4a
Natural Gas 5" to 7" of Water Column
(Table values are maximum pipe run in feet.)
Table 4b
Natural Gas 3.5" to 5"
of Water Column
(Table values are maximum
pipe run in feet.)
BTU and
Pressure Decal
Flex Fuel Line Safety Shut-Off
with Pressure Port
For Underground Installations Verify
Piping System for Code Compliance
Size Meter for Generator Load
Plus ALL Appliances
Check Distance with
Gas Provider
Size gas pipe with Generator Sizing Guide or to local codes.
Natural Gas
1 cubic foot = 1,000 BTU
1 therm = 100,000 BTU
Gas consumption = 13,000-16,000 BTU per kW/hr
Pressure
1 inch mercury = 13.61 inches water column
1 inch Water Column = 0.036 psi
3.5–7 inches water column = 0.126 psi to 0.252 psi