PVC Materials should use ASTM
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
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 CONCEALEDWIRINGANDPIPINGINSIDETHEWALL.
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
SEQUENCEOFINSTALLATIONS,FIGURE4
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).
FIGURE5
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:
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