Lochinvar 000 Boiler User Manual


 
24
TABLE - M
Recommended Gas Pipe Size
Single Appliance Installations
Distance from Meter
Btu/hr
1,500,000
2"
2 1/2"
2 1/2"
2 1/2"
2 1/2"
3"
3"
3"
3"
3"
3 1/2"
3 1/2"
3 1/2"
4"
1,700,000
2,000,000
0 - 50 ft.
51 - 100 ft. 101 - 200 ft.
201 - 300 ft. 301 - 500 ft.
For each elbow or tee, add equivalent straight pipe to total length from TABLE - O.
TABLE - N
Multiple Appliance Installations Gas Pipe Size Chart
lanimoN
,eziSepiPnorI
sehcnI
teeFthgiartSniepiPfohtgneL
010203040506070809001521051571002
4/3 96365250247155114182112131160159689747
1
796774483823292762642652012002971461941831
4/11 004,1479987776595345205274144014963333803782
2/11 051,2005,1012,1020,13290389677076666364653152
74144
2 001,4028,2062,2059,1027,1065,1044,1033,1052,1081,1001,1479178028
2/12 064,6064,4016,3001,3027,2064,2013,2001,2000,2009,10
07,1045,1004,1003,1
3 002,11009,7004,6004,5078,4014,4000,4008,3045,3003,3000,3027,2005,2043,2
4 005,32001,61001,31001,11000,0
1000,9003,8096,7083,7078,6051,6046,5031,5027,4
Maximum Capacity of Pipe in Thousands of Btu’s per hour for gas pressures of 14 Inches Water Column (0.5 PSIG) or less and a
pressure drop of 0.5 Inch Water Column (Based on NAT GAS, 1025 Btu’s per Cubic Foot of Gas and 0.60 Specific Gravity).
TABLE - O
Fittings to Equivalent Straight Pipe
Diameter Pipe Fitting (inches)
3/4" 1" 1 1/4" 1 1/2" 2" 3"
4"
5"
Equivalent Length of Straight Pipe (feet)
2' 2'
3' 4'
5' 10' 14' 20'