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Biasi SG Pro Series
7.1 Common Exhaust Venting Cont.
3. Insofar as practical, close all building doors and windows and all doors between the space
in which the appliance remaining connected to the common venting system are located
and other spaces of the building . Turn on any appliance not connected to the common
vent system. Turn on all exhaust fans except for summer exhaust fans. Close the
fireplace damper if applicable.
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 barometric damper after 5 minutes of main burner operation. Use
the flame of a match or candle, or smoke from a cigarette, cigar or pipe.
6. After it has been determined that each appliance remaining connected to the common
venting system property vents when tested as outlined above, return doors, windows,
exhaust fans, fireplace dampers and any other gas-burning appliance to their previous
condition of use.
7. Any improper operation of the common venting system should be corrected so the
installation conforms with the National fuel Gas Code, ANSI Z223.1 and/or CAN/CGA
B149, Installation Codes. 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 11 of the National Fuel Gas Code, ANSI Z223.1, and/
or CAN/CGA B149, Installation Codes.
7.2 Blocked Flue Switch: (Canada Only)
1. Pierce a 5/8" hole into the vent pipe near the appliance outlet. Remove one of the securing
nuts from the pipe of the safety switch. Tighten the other securing nut onto the pipe as far as
possible.
2. Insert the threaded pipe end into the pierced hole, then install the securing nut, then install
the securing nut, which was removed in step 1, and tighten securely.
3. Please consult the wiring section of this manual for the wiring of the blocked flue switch.
Page 17
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