Rules for Connector Pipe Installation
1.The crimped end of the chimney connector fits inside the furnace flue collar. Install additional chimney con- nectors and elbow with the CRIMPED END TOWARD THE FURNACE. This will allow any condensation in the flue to run back into the furnace. Use 6" dia. steel pipe and elbows for connection to chimney. Never use less than 24 gauge and although blued steel is satisfactory, high temp painted black is much more desirable. (See Figure 8)
2.Slope any horizontal pipe upward toward the chimney at least 1/4 inch for each foot of horizontal run.
3.You must have at least 18 inches of clearance be- tween any horizontal piping and the ceiling.(See Fig. 5)
4.The chimney connector must not extend into the chimney flue. (See Fig. 9)
5.Seal each chimney connector pipe joint with furnace cement. Also seal the pipe at the chimney.
6.Use 3 sheet metal screws at each chimney pipe joint to make the piping rigid.
7.The chimney connector may include a section for a barometric draft regulator between the furnace and the chimney (Fig. 6, 7, & 10). The barometric draft regulator must be installed in the same room (same pressure zone) as the furnace.
8.Install the barometric draft regulator strictly in ac- cordance with the instructions that are provided with the barometric draft regulator.
9.A solid damper must be used in the chimney connect- ing pipes between the flue collar and the chimney. When used in conjunction with a barometric draft regulator, the solid damper must be placed between the barometric and the chimney. (See Fig. 6, 7, & 10)
AdjustingtheBarometricDraftRegulator
1.Drill a hole in the chimney connector within 18" of the flue collar below the barometric draft regulator just large enough for the tube of the manometer.
2.Build a fire after all chimney connections have been made.
3.Use a manometer to measure the draft in the flue.
4.Adjust the Barometric Draft Regulator to obtain a draft of 0.05 - 0.06" W.C. under stable fire conditions.
NOTE:
A flue pipe shall not pass through an attic, roof space, closet or similar concealed space, a floor or ceiling of combustible construction. Where passage through a wall or partition is desired, installation must conform with UL standards.
Figure 8
RIGHT 
WRONG 
WRONG
Figure 9
NON COMBUSTIBLE
INSTALLATION PER
NFPA 211
6" SOLID DAMPER
6" BAROMETRIC DRAFT REGULATOR
MEASURE FLUE DRAFT HERE |
Figure 10 
9
