Model CFC ClearFire Commercial Boilers
33 Rev. 05-2012
Figure B5-26. Gas Piping Schematic
Consideration of volume and pressure requirements must be given when selecting
gas supply piping.
Connections to the burner gas train must include a union so that the burner may be
opened for inspection and maintenance.
A. Gas supply connection is at the rear of the boiler near the top. To permit
burner opening, gas piping must not traverse the top of the boiler.
B. Table B5-23 shows the gas pressure required at the inlet of the gas line.
Note: a pressure regulator is not furnished and if gas pressure exceeds 14"
W.C. a pressure regulator is recommended.
C. Table B5-24 shows the correction factors for gas pressure at elevations at
2000 feet and higher above sea level.
Same or larger than boiler gas connection
size
Drip leg required for any vertical run of
piping
As required
Gas header - size for boiler room
capacity and to minimize pressure loss
As required
To Next Page
Loading...
Need help?
General
