Block Flue Switch - Biasi SG 2 Manual And Installation Instructions

Biasi SG 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. Ad-
just 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 in-
stallation 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 deter-
mined using the appropriate tables in Part 11 of the National Fuel Gas Code, ANSI
Z223.1, and/or CAN/CGA B149, Installation Codes.
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.
7.2 Blocked Flue Switch:
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