Operating instructions

11
Test for spillage at the draft hood relief opening after
5.
5 minutes of main burner operation. Use the fl ame of
a match or candle, or smoke from a cigarette, cigar or
pipe.
After it has been determined that each appliance
6.
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fi replace dampers and
any other gas-burning appliance to their previous
conditions of use.
Any improper operation of the common venting system 7.
should be corrected so the installation conforms with
the National Fuel Gas Code, ANSI Z223.1/NFPA 54.
When resizing any portion of the common venting
system, the common venting system should be resized
to approach the minimum size as determined using the
appropriate tables in Chapter 13 of the National Fuel
Gas Code, ANSI Z223.1/NFPA 54.
Vent connectors serving appliances vented by natural
draft shall not be connected into any portion of mechanical
draft systems operating under positive pressure.
CHIMNEY AND VENT PIPE CONNECTION
Figure 5 - Typical Masonry Chimney Requirements
VENT DAMPER OPERATION
TYPICAL INSTALLATION FOR VENT DAMPER
NOTE CAUTION AND FOOTNOTES
Install the vent damper to service only the single 1.
appliance for which it is intended. If improperly
installed, a hazardous condition, such as an explosion
or carbon monoxide poisoning, could result.
Do not install the vent damper on vent pipe curve. 2.
Do not run wires near high temperature surfaces. 3.
Use stand-off brackets if necessary.
Figure 6 - Horizontal Installation
Figure 7 - Alternate Vent Damper Installation