INSTALLATION OF VENT SYSTEM
Before beginning installation of piping system thoroughly read the section of this manual VENT PIPE PREPARATION.
If you are installing your system so that it vents through roof, please refer to section titled INSTALLATION OF VERTICAL VENT SYSTEM.
VENT TERMINAL INSTALLATION, SIDEWALL
1.Install the vent terminal by using the cover plate as a template to mark the hole for the vent pipe to pass through the wall.
BEWARE OF CONCEALED WIRING AND PIPING INSIDE THE WALL.
2.If the Vent Terminal is 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 hole as a centering point for the template.
3.A) MASONRY SIDE WALLS
Chisel an opening approximately one half inch (1.3 cm) larger than the marked circle.
B) WOODEN SIDE WALLS
Drill a pilot hole approximately one quarter inch (0.64 cm) outside of the marked circle. This pilot hole is used as a starting point for a
SEQUENCE OF INSTALLATIONS, FIGURE 18A
Cut a length of PVC pipe about 3.5 inches (8.9 cm) longer than the wall thickness at the opening. Glue the vent terminal to this section of pipe. Slide the wall plate over the pipe to stop against the vent terminal. Place a bead of caulking (not supplied) around the gap between the pipe and cover plate. Apply enough to fill some of the gap between the pipe and wall. Place some of the caulking on the back of the plate to hold it against the wall after installation. 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 the coupling on the other side of the wall, making sure that the vent terminal ends up pointed in the correct position, see Figure 18A.
VENT TERMINATION - FIGURE 18A.
DIRECT VENTING
The air intake provided on the unit contains a mesh screen to prevent large particles from entering the unit.
FIGURE 18B.
WHEN THE UNIT IS TO BE SETUP AS A DIRECT VENT, THE MESH SCREEN MUST BE REMOVED. THE INLET VENT PIPE MAY THEN BE GLUED TO THE AIR INTAKE (See Figure 18B)
PROVIDED ON THE UNIT. THE SCREEN REMOVED FROM THE INTAKE NEEDS TO BE INSERTED INTO THE 2” - 22.5 DEGREE
VENT TERMINAL SUPPLIED IN THE VENT TERMINAL KIT.
DIRECT VENT TERMINAL INSTALLATION IMPORTANT
THIS UNIT CONSISTS OF TWO VENT TERMINALS - AN INTAKE VENT TERMINALAND AN EXHAUST VENT TERMINAL. THE INTAKE VENT TERMINAL IS A 2” 22.5° PVC
ELBOW WITH A MESH WIRE SCREEN.
NOTE: TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKE IN WINDY/COLD AREAS, THE MAXIMUM PRACTICAL DISTANCE BETWEEN THESE TWO TERMINALS IS RECOMMENDED.
FIGURE 18C.
WHEN LOCATING THE TERMINALS ON A SIDEWALL, THE FOLLOWING SPECIFICATIONS PERTAINING TO TERMINAL LOCATION MUST BE FOLLOWED.
1.The intake air terminal and the exhaust vent terminal must terminate on the same exterior wall and must be separated by a minimum of 24” (61cm) on vertical centerline (see Figure 18C). In colder climates increasing the 24” (61cm) minimum will reduce possibility of frost over from side winds blowing exhaust vapors to the air intake of the direct vent.
2.The horizontal centerline of the intake air terminal may not be located lower than the horizontal centerline of the exhaust vent terminal (see Figure 18C).
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