Hotblast 1357M, Owner'S Manual

Page: 9 / 32

9
1. The crimped end of the chimney connector fits inside the furnace
flue collar. Install additional chimney connectors 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 between any hori -
zontal 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 accordance with the
instructions that are provided with the barometric draft regulator.
9. A solid damper must be used in the chimney connecting pipes be -
tween 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)
ADJUSTING THE BAROMETRIC DRAFT
REGULATOR
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.
RIGHT WRONG WRONG
6" SOLID DAMPER
6" BAROMETRIC
DRAFT REGULATOR
NON COMBUSTIBLE
INSTALLATION PER
NFPA 211
MEASURE FLUE DRAFT HERE
Figure 9
Figure 10
Rules for Connector Pipe Installation
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