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PVC Materials should use ASTM D-2564 Grade Cement; CPVC Materials
should use ASTM F-493 Grade Cement and ABS Materials should use
ASTM D-2235 Grade Cement.
NOTE: 1. For water heaters in locations with high ambient temperatures
(above 100°F) and/or insufficient dilution air, it is recommended that CPVC
or ABS pipe and fittings be used. 2. The SUPPLIED VENT TERMINAL
must be used in all cases.
4. The temperature of the flue gases leaving the blower is about 160°F
after mixing the dilution air in the inlet adapter of the blower. Even
with high concentrate of room air taken into the vent system for dilution
air,
there will be some installations where condensate will be formed
in the horizontal runs of the vent system. This condensate MUST
NOT be allowed to drain back into the fan unit.
One method to catch the condensate before it can run back to the
fan is to install a "TEE" mounted upside down and capped, just past
the first elbow, (Fig.9) of the vent pipe system. This set-up will require
the installation of a small (1/4-3/8 inch) plastic tube, with the proper
trap, to drain the condensate to a floor drain.
A second method to prevent the condensate from draining back to
the fan unit would be to install the vent system with a slight, 1/8 inch
per five foot of pipe maximum, downward slope (max. of 5/8 inch).
INSTALLATION OF SIDEWALL 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 following 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 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 saws-all or
sabre saw blade. Cut around the marked circle staying approximately
one quarter inch outside of the line. (This will allow the vent to easily
slide through the opening. The resulting gap will be covered up by
the Vent Terminal cover plate.) Repeat this step on inside wall if
necessary.
SEQUENCE OF INSTALLATIONS, FIGURE 4
Cut a length of 3" PVC pipe about 3.5 inches longer than the wall thickness
at the opening. Glue the vent terminal "TEE" with screens to this section
of pipe. Slide the wall plate over the pipe to stop against "TEE". 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 fig. 5).
FIGURE 5
PREPARATION OF BLOWER ASSEMBLY
1. Check to make sure that the wire harness is attached to the gas
valve and blower control box.
2. Make sure no material is still attached to the outside or inside of blower
assembly.
3. Make sure that plastic tubing is still attached to the pressure switch
and fan housing. Also make sure that wiring connector from motor
to control box is securely attached.
FIGURE 6
4. Do not plug in power cord until vent system is completely installed.
The Power Vent operates on 120 Vac, therefore a grounded outlet
must be within reach of the 6 foot flexible power cord supplied with
the vent (see fig.1). The power cord supplied may be used on unit
only where local codes permit. If local codes do not permit use of
flexible power supply cord: