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Installing the Water Heater
Installer Qualifications
A licensed professional must install and inspect the appliance. A
licensed professional is a person who is licensed for the following:
•
Connecting gas lines, water lines, valves, electricity
•
Vent installation through walls and roofs
•
Applicable of local, state, and national codes
Compliance Requirements
•
National electrical code.
•
National fuel gas code, ANSI Z223.1/NFPA 54 and/or CSA B149.1,
natural gas and propane installation codes.
•
Local, state, provincial, and national codes, laws, regulations,
and ordinances.
Location
When considering a location for installation, the installer, must
ensure the following:
•
Access to utilities
•
Humidity and contact with water
•
Water quality
•
Drainage
•
Venting and ventilation
•
Proximity to fixtures and appliances
•
Clearances
•
Clean, debris and chemical-free combustion air
•
High elevation Installations
Access to utilities
•
Electricity – Close to where the electrical supply enters the
building
•
Water – Close to where the domestic water supply enters the
building
•
Gas – Close to where the gas supply enters the building
Humidity and contact with water
Avoid places with excessive humidity. The water heater has electric
gas ignition components. If water gets inside the water heater, the
ignition system can be damaged. The water heater must be installed
in such a way as to ensure that the gas ignition system components
are protected from water (dripping, spraying, rain, etc.) during
operation and service.
12
Installation Manual
Water quality
Water quality can have an impact on appliance longevity and may
void the manufacturer's warranty.
To maintain the water heater properly, ensure that your water meets
EPA quality standards. The following table shows the maximum
contaminant levels allowed, based on the EPA National Secondary
Drinking Water Regulations (40 CFR Part 143.3). If you suspect that
your water is contaminated in any way, stop using the water heater
and contact an authorized technician or licensed professional.
Contaminant
200 mg/l (12 grains/gallon)
Total Hardness
0.05 – 0.2 mg/l
Aluminum
Chloride
250 mg/l
Copper
1.0 mg/l
0.3 mg/l
Iron
0.05 mg/l
Manganese
pH
6.5 – 8.5
Sulfate
205 mg/l
500 mg/l
Total Dissolved Solids (TDS)
205 mg/l
Zinc
Drainage
A significant amount of condensate is produced during the water
heater operation. Install the water heater near a suitable drain
and where damage from a possible leak will be minimal. Installing
the water heater without a drain will void the warranty. For more
information about condensate drainage, refer to "Condensate Drain"
on page 20.
The water heater must be located in an area where leakage of the
unit or connections will not result in damage to the area adjacent
to the appliance or to lower floors of the structure. When such
locations cannot be found, installation of an adequately-draining
drain pan under the water heater is highly recommended. When
installing the drain pan, ensure that the installation does not restrict
combustion air flow.
Venting and ventilation
Consider venting restrictions caused by windows, doors, air intakes,
gas meters, foliage and other buildings, and select a location that
requires minimal venting.
When considering a adequate venting and ventilation, ensure the
following:
•
Maintain a minimum clearance of 4 feet (1.2 meters) from
heating and cooling vents.
•
Maintain proper clearances from any openings in the building.
•
Install the water heater with a minimum clearance of 12 inches
(300 mm) above an exterior grade or as required by local codes.
Maximum Allowable Level
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