2.The horizontal centerline of the intake vent terminal may not be located lower than the horizontal centerline of the exhaust vent terminal (see Figure 9).
FIGURE 9.
INSTALLATION SEQUENCE
For installations in the City of Los Angeles, California Category IV PVC Pipe such as that manufactured by Brownline Pipe Company, must be used as vent pipe material.
CAUTION
Vent terminals supplied with the heater must be used.
NOTE: BEFORE BEGINNING INSTALLATION OF ANY VENT PIPE READ THE VENT PIPE MANUFACTURER'S INSTALLATION INSTRUCTIONS.
1.After the points of termination have been determined, use the cover plates as templates to mark the holes for the vent pipes to be inserted through the wall. BEWARE OF CONCEALED
WIRING AND PIPING INSIDE OF WALL.
2.If the vent terminals are being installed on the outside of a finished wall, it may be easier to mark both the inside and outside wall. Align the holes by drilling a hole through the center of the template from the inside through to the outside. The template can now be positioned on the outside wall using the drilled holes as a centering point for the template.
3.A) MASONRY SIDE WALLS
Chisel an opening approximately 1/2" (1.3 cm) larger than the marked circle.
B) WOODEN SIDE WALLS
Drill a pilot hole approximately one quarter inch outside of the marked circle. This pilot hole is used as a starting point for a
4.Cut a length of PVC pipe about 3.5" (8.9 cm) longer than the wall thickness at the opening.
5.Glue the intake vent terminal to the section of the pipe.
6.Slide the wall plate over the pipe to stop against intake vent terminal.
7.Place a bead of caulking (not supplied) around the gap between the pipe and the wall. Place some of the caulking on the back of the plate to hold it against the wall after installation.
8.If the vent pipe is installed up to the wall, with a coupling on the end against the wall opening, the pipe with the vent terminal can be prepared for gluing before inserting through the wall.
Slide the pipe through the wall and insert into coupling on the other side of the wall, making sure that the vent terminal ends up pointed in the correct position. See Figure 10.
EXHAUST VENT TERMINAL
INTAKE VENT TERMINAL
FIGURE 10.
VERTICAL VENT TERMINAL INSTALLATION
IMPORTANT
WHEN TERMINATING THROUGH A ROOF, THE FOLLOWING SPECIFICATIONS PERTAINING TO TERMINAL LOCATION MUST BE FOLLOWED.
1.Proper support must be provided for all pipe protruding through the roof.
2.The vertical roof terminations should be sealed with a plumbing roof boot or equivalent flashing.
3.The intake vent termination and the exhaust vent termination must penetrate the same side of roof.
4.The center line of the intake vent termination and the center line of the exhaust vent termination must be no closer than 24" (61cm).
5.The intake vent terminal and the exhaust vent terminal must be oriented facing downward and the same direction.
The specifications are displayed in Figure 11.
NOTE: Exhaust vent terminal is installed using the same procedure.
INSTALLATION SEQUENCE
NOTE: BEFORE BEGINNING INSTALLATION OF ANY VENT PIPE, READ “VENT PIPE PREPARATION” SECTION ON PAGE 12.
1.After the points of termination have been determined, use the cover plates as templates to mark the holes for the vent pipes to be inserted through the roof.
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