15. Examples
PNEG-308
Purafire
51
Example 2
Determine the pipe size for a 5 PSI Propane “High Pressure” installation.
Because the appliance near junction E is the farthest away from the LP tank, use this distance.
Section A-E is 380' long. Use the 400' line on the “Propane @ 5 PSI” chart.
Figure 15B
Example 3
Determine the pipe size for an 11" water column “Low Pressure” installation. The primary regulator on
the tank is set for 10 PSI delivery pressure.
Because there will be two (2) different pressure ranges, two (2) different charts will be used.
High Pressure line: Section A-B is 30' long. Use the 30' line on the “Propane @ 10 PSI” chart.
Low Pressure line: Section B-F is 350' long. Use the 350' line on the “Propane @ 11" W.C.” chart.
NOTE:
When the required pipe size is larger than the inlet or outlet side of a regulator, use a bell reducer
or bushing immediately entering or exiting the regulator.
Section
BTU Demand
Pipe Size
A-B
900
1"
B-C
675
3/4"
C-D
450
1/2"
D-E
225
1/2"
Section
BTU Demand
Pipe Size
A-B
900
1/2"
Section
BTU Demand
Pipe Size
B-C
900
2-1/2"
C-D
675
2"
D-E
450
1-1/2"
E-F
225
1-1/4"
Summary of Contents for C225
Page 21: ...PNEG 308 Purafire 21 6 Wiring Diagrams 120V Models Figure 6A...
Page 22: ...22 PNEG 308 Purafire 6 Wiring Diagrams 220V Models Figure 6B...
Page 23: ...PNEG 308 Purafire 23 7 Wiring Harness Wiring Harness Assembly Figure 7A...
Page 32: ...32 PNEG 308 Purafire 11 Parts List C225 NG LP Galv Purafire 120V 60 Hz...
Page 34: ...34 PNEG 308 Purafire 11 Parts List C225 X1 NG LP Galv Purafire 220V 50 60 Hz...
Page 36: ...36 PNEG 308 Purafire 11 Parts List C80M NG LP Galv Purafire 120V 60 Hz...
Page 38: ...38 PNEG 308 Purafire 11 Parts List C80M X1 NG LP Galv Purafire 220V 50 60 Hz...
Page 56: ...56 PNEG 308 Purafire NOTES...