BOILER BOOK CFC-E
ENGINEERING DATA
31
Figure 24. Gas Header Piping
Table 14. Model CFC-E Minimum and Maximum Gas Pressure
*Overpressure protection required when room supply gas pressure is greater than maximum gas train
pressure rating.
Boiler Model
Minimum pressure required at gas train
connection (inches Water Column)
Max. pressure
(without step-down
regulator)
Maximum gas train pressure rating*
Natural Gas
LP Gas
UL
cUL/CSA
500
7”
11”
14” WC
(1/2 psig)
1 psig
1/2 psig
750
7”
11”
1000
7”
11”
1500
7”
11”
2000
7”
11”
Regulator
Header Pipe
Meter
Gas Header Piping, Typical
Gas Strainer
Relief Valve
See Note 5
Manual Shut Off
See Note 1
NOTES:
1. Dedicated gas pressure regulator recommended for each boiler.
2. Refer to local fuel gas codes when applicable.
3. Header
to
be
sized
for
room
capacity.
4. Provision required for measuring gas supply pressure at boiler.
5. Relief valve required if gas supply pressure >1 psig.
Summary of Contents for CFC-E 1000
Page 1: ...CFC E ClearFire Condensing Boiler Boiler Book 02 2018...
Page 52: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 52 Figure 38 Primary Secondary Single Boiler...
Page 53: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 53 Figure 39 Primary Secondary Two Boilers...
Page 54: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 54 Figure 40 Primary Secondary Three Boilers...
Page 55: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 55 Figure 41 Primary Variable Flow Single Boiler...
Page 56: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 56 Figure 42 Primary Variable Flow Two Boilers...
Page 57: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 57 Figure 43 Primary Variable Flow Three Boilers...
Page 60: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 60...
Page 61: ...BOILER BOOK CFC E e mail info cleaverbrooks com Web Address http www cleaverbrooks com...
