Section 3 — Stack and Intake Vent Sizing and Installation
Part No. 750-263
3-19
•
Area required: Area = cfm/fpm = 1,080/250 = 4.32
square feet total.
•
Area/Opening: 4.32/2 = 2.16 sq-ft/opening (2 required).
Notice
Consult local codes, which may supersede these requirements.
Direct Vent Combustion
If combustion air will be drawn directly from the outside by means of
a duct connected to the burner air intake, use the following as a
guide:
1. Install combustion air vent (direct vent combustion) in
accordance with the boiler's Operating and Maintenance
manual.
2. Provide for adequate ventilation of the boiler room or
mechanical equipment room.
3. In cold climates, and to mitigate potential freeze-up of the intake
pipe, it is highly recommended that a motorized sealed damper
be used to prevent the circulation of cold air through the boiler
during non-operating hours.
4. Refer to
Figure 3-2
and
Figure 3-4
for suggested piping of direct
vent combustion installations.
Figure 3-9
shows the optional
direct vent combustion kit providing easy adaptation of the
contractor supplied air duct to boiler connection. Refer to Table
3-2 for sizing the direct vent combustion air pipe.
Figure 3-9. Optional Direct Vent Combustion Kit
FAN/BLOWER
VENTURI
AIR SUPPLY LINE
Summary of Contents for CFC-1000
Page 35: ...Section 2 Installation Part No 750 263 2 21 Figure 2 23 Gas Piping ...
Page 47: ...Section 2 Installation Part No 750 263 2 33 Figure 2 41 Electrical Connection Diagram ...
Page 49: ...Section 2 Installation Part No 750 263 2 35 Figure 2 43 CFC Wiring Diagram dual fuel units ...
Page 50: ...Section 2 Installation 2 36 Part No 750 263 ...
Page 70: ...Section 3 Stack and Intake Vent Sizing and Installation 3 20 Part No 750 263 ...
Page 102: ...Section 4 CFC Commissioning 4 32 Part No 750 263 ...
Page 108: ...Section 5 Service and Maintenance 5 6 Part No 750 263 ...
Page 113: ...Section 6 Parts Part No 750 263 6 5 Figure 6 3 Casing Table 6 5 Casing parts ...
Page 117: ...Section 6 Parts Part No 750 263 6 9 Figure 6 7 Electrical assemblies single fuel ...
Page 123: ...APPENDIX A CB FALCON CONTROLLER ...
Page 124: ......
Page 244: ...CB FALCON 750 265 120 ...
Page 245: ...APPENDIX B CB FALCON PLUG IN MODULE ...
Page 246: ......
Page 250: ......
Page 251: ...APPENDIX C GAS VALVE ...
Page 252: ......
Page 269: ...APPENDIX D CB FALCON MODBUS COMMUNICATION ...
Page 270: ......