Specially For Direct Vent Water Heater:
Make certain to observe the vent location limitations complying with the
recommended is 90” or in compliance with figure 3M. *Where the wall is combustible and the wall thickness is over 14”, 1 inch clearance to combustible materials around the terminal pipe is needed. The first 14” is zero clearance.
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Terminalmust | overhang irregularity. |
Vent Terminal must be located at least 12” from Windows, Doors, or any other Opening through which flue gases could enter the
18”building. Min.
Vent terminal must be located at least 36” above any Forced Air Inlet into the
12” Min.building within 10 feet of the Vent Terminal
MAX. 90”
4”3”
4”
WALL
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12” Min. above grade. Higher | Any Forced Air Inlet | |||||||||
in Areas of Heavy Snowfall | into the building | |||||||||
Figure 3 - Vent Location Limitations
Figure 3 B - Moving Water Heater To Its Final Installed Location.
Move the water heater to its final installed location. Make certain clearances from combustible material are observed. The maximum distance from center of water heater to outside wall should not be longer than 90”.
For a second or more direct vent unit, the distance between vent terminals must have a minimum of 1 foot.
INSPECT SHIPMENT
CAUTION
If there are any damaged parts, DO NOT install this water heater. Report any shortage to your distributor or damage to your carrier.
Note: The four fasteners that are required to secure the vent terminal to the exterior wall are not provided. These should be screw type (not nails) chosen for the type of construction and obtained locally.
CAUTION
Cut edges of corrugated (flex) pipe are extremely sharp. Wear gloves when handling.
VENT CONNECTIONS - After the location for the vent terminal has been selected as outlined in Figure 3, use the following illustrations for installation:
7” DIAMETER
MIN.
68”
BOTTOM OF HEATER
Figure 3 A - Locating Clearance Hole for Vent.
Cut a clearance hole, approximately 7 inches in diameter, through the exterior wall for the vent assembly. The minimum height should not be less than 68” from the hole center to bottom of water heater. The maximum height
– 3 –
CLAMP
SPRING
Figure 3 C - Vent Assembly.
The vent pipe and terminal are assembled by the manufacturer as shown in figure 3C. There are springs fastened inside the corrugated pipe. When the vent pipes are pulled to a required length, the distances between the springs will still be equally spaced.
SEALANT
Figure 3 D - Securing Vent Termination Assembly To The Exterior Wall.
Introduce the 6” pipe through the clearance hole from exterior wall then secure the vent terminal to the exterior wall with 4 screw anchors appropriate for the type of wall construction. Caulk the junction of the vent terminal base plate and the exterior wall with exterior type silicone sealant.
