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STANDARD VENT ARRANGEMENT
3.6 in.
2.6 in.
FIGURE 16
* If the horizontal distance is less than 30 in., the restricter plate
must be installed (see Figure 21).
NOTE: The length of "unstretched" corrugated tube could cause
the length of the vent run to exceed the minimum. In this case cut
off a piece of the corrugated tube to acheive the 17 in. minimum
vent length.
VENT ASSEMBLY
The vent tube and terminal can be assembled as shown in Fig-
ure 17. There are springs fastened inside the corrugated tube.
When the vent tubes are pulled to a required length, the springs
will still be equally spaced.
CLAMP
SPRING
FIGURE 17
SECURING VENT TERMINATION ASSEMBLY TO THE
EXTERIOR WALL.
Some models are supplied with trim plates which may be used to
cover the holes in the wall (see Figures 1 and 18). Slide one trim
plate (if supplied) over the outer corrugated tube, then insert the
outer corrugated tube through the clearance hole from exterior
wall. Secure the trim plate to the exterior wall, then secure the
vent terminal to the exterior wall with 4 screw anchors (included)
appropriate for the type of wall construction. Caulk the junction
of the vent terminal base plate and the exterior wall with exterior
type sealant (not included). Slide the trim plate (inside) over the
outer corrugated tube and fasten the trim plate to the interior
wall. Caulk the junction of the outer corrugated tube and the trim
plate (inside) with suitable sealant.
TRIM PLATE
(INSIDE)
FIGURE 18
17 in. MIN.,*
WALL
80 in. MAX.
2.1 in.
SEALANT
TRIM PLATE
(OUTSIDE)
UNCOMPRESSING THE CORRUGATED TUBING
1.
Pull the inner corrugated tube towards the water heater and
leave some length over the water heater's center for bend-
ing.
2.
Pull the outer corrugated tube toward the water heater and
leave it 1 in. shorter than the inner corrugated tube.
3.
Make sure there are two springs evenly spaced at the bend
in the tube.
4.
Use metal hangers to keep venting level or with a slope up-
ward from the heater to terminal.
REDUCER
H
Bend both the corrugated tubes toward the water heater's fl ue
connection.
VENT RESTRICTER PLATE
For short horizontal vent runs (see Figure 16) place the restricter
plate over the fl ue tube reducer before connecting the inner cor-
rugated tube to the fl ue tube reducer. DO NOT use the restricter
plate if the horizontal run is greater than 30 in..
UPPER AIR
INLET BOX
FLUE TUBE
REDUCER
Pull and connect the inner corrugated tube to the water heater's
fl ue tube reducer with hi-temp red silicone (included) and gear
clamp. Make sure this connection is tight and leak proof.
*The sealant between the inner corrugated tube and water
heater's fl ue tube reducer must be hi-temp red silicone or other
material suitable for 600°F continuous service.
18
SPRING
FIGURE 19
FIGURE 20
RESTRICTER
PLATE
FIGURE 21
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