Installing the (INDOOR) water heater :
This water heater must be installed in accordance with these instructions, local codes, utility company requirements and/or in the absence of local codes, use the latest edition of the American National Standard/National Fuel Gas Code. A copy can be purchased from either the American Gas Association, 400 North Capitol Street Northwest, Washington, DC 20001 as ANSI standard Z223.1 or National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269 as NFPA 54. In Canada, the latest edition of the CSA B149.1 Natural Gas and Propane Installation, and the Canadian Electrical Code, CSA C22.1 Part 1, in the absence of local codes.
Location of INDOOR Water Heater
!WARNING: Combustible construction refers to adjacent walls and ceilings and should not be confused with combustible or flammable products and materials. Combustible and/or flammable products and materials should never be stored in the vicinity of this or any gas appliance.
Minimum Clearance from
Combustible and
Construction.
| min. | min. 3" |
|
| min. 3" |
| min. | ||||
1/2 " |
|
|
| 1/2 " |
| ||||||
|
|
|
|
|
|
|
| ||||
| (8 cm) |
|
| (8 cm) |
| ||||||
| (1.3 cm) |
|
| (1.3 cm) | |||||||
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| min. 12" (30 cm) |
|
|
| ||
|
|
|
|
|
| (24" (61 cm) minimum is | |||||
|
|
|
|
|
| recommended for service) | |||||
|
|
|
|
|
| ||||||
| Top = 12" (30 cm) | Back = 0" * |
|
|
| ||||||
| Vent = 3" (8 cm) | Side = 1/2" (1.3 cm) | |||||||||
Front = 12" (30 cm) Bottom = 12" (30 cm)
*(with support bracket)
!WARNING: Follow vent manufacturer’s instruction while installing vent. If required, provide additional clearances from vent to combustibles per vent manufacturer’s instruction.
The water heater should not be located in an area where leakage of the heat exchanger or connections will result in damage to the area adjacent to it or to lower floors of the structure.
When such areas cannot be avoided, it is recommended that a suitable catch pan, adequately drained, must be installed under the water heater.
The pan must not restrict combustion air flow.
A gas fired water heater or any other appliance should not be installed in a space where liquids which give off flammable vapors are to be used or stored. Such liquids include gasoline, LP gas (butane or propane), paint
or adhesives and their thinners, solvents or removers.
Because of natural air movement in a room or other enclosed space, flammable vapors can be carried some distance from where their liquids are being used or stored. The open flame of the water heater’s main burner can ignite these vapors causing an explosion or fire which may result in severe burns, death or property damage.
The water heater must be located so it is not subject to physical damage, for example, by moving vehicles, area flooding, etc.
If the water heater is installed in a garage, it should be installed so that the direct ignition system and main burner are no less than 18 inches (45 cm) above the garage floor.
Raising the gas fired water heater will reduce BUT NOT eliminate the possibility of lighting the vapor of any flammable liquids which may be improperly stored or accidentally spilled.
●The water heater should be installed as close as practical to the vent termination to minimize vent length and the number of elbows required for venting.
● The water heater should be installed with |
the proper venting materials and termination |
suitable for Category III venting. |
● A fire stop plate should be installed at every |
penetration of a floor or ceiling if the vent is |
not running in a fire rated shaft. |
● Failure to install and properly vent the water |
heater to the outdoors as outlined |
in the Venting Section of this manual |
can result in unsafe operation. |
● Long hot water lines should be insulated to |
conserve water and energy. |
● The water heater and water lines should |
be protected from exposure to freezing |
temperatures. |
● Do not install the water heater in |
bathrooms, bedrooms, any occupied rooms |
normally kept closed, or in outdoor areas. |
● Do not install the water heater in small, |
poorly ventilated rooms, or in airtight |
rooms with air conditioning. |
● Do not install water heater where subject |
to vibrations. |
● Do not install the water heater in |
Recreational Vehicles, Mobile Homes, |
Boats and other Watercrafts. |
● Do not install the water heater near vents |
for heating or cooling. A minimum of 4 |
feet (1.2 m) should be maintained. |
● Minimum clearance from combustible and |
cm) sides, 0” rear (with support bracket); |
12” (30 cm) from the bottom; 12” (30 cm) |
from the front of the water heater; and 12” |
(30 cm) from the top (24” [61 cm] from |
front and top is recommended for servicing |
purposes). |
● Maintain a minimum clearance of 3” (8 cm) |
around the vent pipe to combustible or non- |
combustible construction, unless otherwise |
specified by vent manufacturer or installed |
in an enclosed space. If the clearances |
stated on the Instruction/Warning Label, |
3” (8 cm) min |
| ||
3” (8 cm) | 3” (8 cm) | Vent | |
Pipe | |||
min. | min | ||
| |||
8 |
|
| |
located on the front panel of the heater |
differ, install the water heater according |
to the clearances stated on the label. |
See the back page of this manual for additional requirements for the Commonwealth of Massachusetts.
