Honeywell 6442 Manual To Operations page 8

LP VAPOR INSTALLATION
BTU and
Pressure Decal
Flex Fuel Line
Size gas pipe from secondary regulator with Generator Sizing
Guide or to local codes.
Fuel Pipe Sizing lP Vapor
Table 5
LP Vapor (LPV) 11" to 14" of Water Column
(Table values are maximum pipe run in feet.)
kW 0.75" 1"
11 70 255
15 25 130
20 15 115
25 55
35 20
45
60
70
80
100
130
150
8
Check Distance
with LP Provider
Check Distance with
Regulator Manufacturer
Safety Shut-Off
with Pressure Port
Pipe Size (in)
1.25" 1.5" 2"
1000
540
480
260 575
125 290 1030
70 165 620
45 115 445
20 60 260
15 50 230
30 165
70
45
Primary Regulator
Per LP Provider
2.5" 3"
1095
LP
660
LPG: 8.55 ft
590
LPG: 36.3 ft
430 1305
205 660
Pressure
150 490
1 inch mercury = 13.61 inches water column
1 inch Water Column = 0.036 psi
11–14 inches water column = 0.396 psi to 0.50 psi
Note:
– Pipe sizing is based on 0.5" H
– Sizing includes a nominal number
of elbows and tees.
– Please verify adequate service and meter sizing.
– Tables based on black pipe.
Size Tank Large Enough to Provide
Required BTU's for Generator and ALL
Connected Appliance Loads.
Be Sure to Correct for MIWR (See Table 6)
High Pressure Pipe
Sized per LP Provider
Secondary Regulator
Vented 5' from Generator
/lb., 4.24 lbs./gal., 2500 btu/ft
3 3
= 1 gal.
3
O pressure drop.
2