4. Place in operation the appliance being inspected. Follow
the lighting instructions. Adjust thermostat so appliance
will operate continuously.
5. Test for spillage at the draft hood relief opening after 5
minutesof main burner operation. Usetheflame of a match
or candle, or smoke from a cigarette, cigar or pipe.
6. After it has been determined that each appliance remain-
ing connected to the common venting system properly
vents when tested as outlined above, return doors,
windows, exhaust fans, fireplace dampers and any other
gas-burning appliance to their previous conditions of use.
7. Any improper operation of the common venting system
should be corrected so the installation conforms with the
National FuelGas Code,ANSIZ223.1 -latestrevision.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 Part 1! in the National Fuel Gas Code, ANSI
Z223.1 -latest revision.
For boilers for connection to gas vents or chimneys,
vent installations shall be in accordance with Part 7,
Venting of Equipment, of the National Fuel Gas Code,
ANSI Z223.1-1atest revision and applicable provisions
of the local building codes.
Vent connectors serving appliances vented by natural
draft shall not be connected into any portion of mech-
anical draft systems operating under positive pressure.
ROOF
RIDGE
3t4 HT MAXIMUM
J
MUST SLOPE UP
AT LEAST 1/4 INCH
PER FOOT OF
HORIZONTAL RUN
HORIZONTAL INSTALLATION
YES YES
TO FURNACE VENT TO CHIMNEY
OR BOILER DAMPER INSTALL VENT DAMPER WITH
ACTUATOR TO SIDES OF
VENT ONLY, DO NOT MOUNT
ABOVE OR BELOW VENT,
VERTICAL INSTALLATION
TO CHIMNEY
€ _ VENT
FLOW uDAMPE R
TO FURNACE N
OR BOILER U
ACTUATOR MAY BE
INSTALLED IN ANY POSITION
CAUTION: DO NOT INSTALL
THE VENT DAMPER
WITHIN 6 In. (152 ram) OF
COMBUSTIBLE MATERIAL.
INSTALL DAMPER
NOT
HERE
_'HtMNEY
BOILER WATER HEATER
TYPICAL INSTALLATION FOR VENT DAMPER
NOTE CAUTION AND FOOTNOTES
1. Install the vent damper to service only the singleappliance for
which it is intended. Ifimproperly installed,a hazardous condition,
such as an explosion or carbon monoxidepoisoning, could result.
2. Do not installthevent damper on vent pipecurve.
3. Do not run wires near high temperature surfaces. Use stand-off
brackets ifnecessary.
7_c090
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