Pmpe_y Damage Hazard
•AJJwater heaters eventually Jeak
•Do not install without adequate drainage,
IMPORTANT: The water heater should be located in an area where leakage of the tank or connections wilt not result in damage to the area adjacent to the water heater or to lower floors of the structure. Due to the normal corrosive action of water, the tank wilt eventually leak after an extended period of time. Also any external plumbing leak, including those from improper installation, may cause early failure of the tank due to corrosion if not repaired. If the homeowner is uncomfortable with making the repair a qualified technician should be contacted. A suitable metal drain pan should be installed under the water heater as shown below, to help protect the property from damage which may occur from condensate formation or leaks in the piping connections or tank. The pan must limit the water level to a maximum depth of
FIGURE 9.
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At least 2" greater than the water heater.
Water heater life depends upon water quality, water usage, water temperature and the environment in which the water heater is installed. Water heaters are sometimes installed in locations where leakage may result in property damage, even with the use of a metal drain pan piped to a drain. However, unanticipated damage can be reduced or prevented by a leak detector or water
•Sensors mounted in the metal drain pan that trigger an alarm or turn off the incoming water to the water heater when water is detected.
•Sensors mounted in the metal drain pan that turn off the water supply to the entire home when water is detected in the metal drain pan.
•Water supply
•Devices that wilt turn off the gas supply to a gas water heater while at the same time shutting off its water supply.
EXHAUST FAN
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REVERSE FLOW
L OF GASES
FIGURE 10.
Clearances and Accessibility
NOTE: Minimum clearances from combustible materials are stated on the label on the front of the heater adjacent to the gas control valve/thermostat of the water heater.
The water heater is certified for installation on a combustible floor.
•IMPORTANT: If installing over carpeting, the carpeting must be protected by a metal or wood panel beneath the water heater. The protective panel must extend beyond the full width and depth of the water heater by at least five inches (127mm) in any direction; or if in an alcove or closet installa- tion, the entire floor must be covered by the panel.
•Figure 11 may be used as a reference guide to locate the specific clearance locations. A minimum of 5 inches of front clearance should be provided for inspection and service.
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| 6" | min. | at |
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| Single | Wall | |
12" | min. |
| "1_1HliVent | Pipe | |
I | IH |
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Top | to | ] |
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• | II I |
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Ceiling_ | L"_ | II |
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0" min. Back
Top View | !:_j | i |
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Minimum Clearance Locations
FIGURE 11.
High Altitude Installation
This water heater should not be installed for operation at elevations above 10,100 ft. (3,078 m).
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