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1
Determine water heater location
Locating the water heater (continued)
6.
The appliance must not be installed on carpet or other
combustible material other than wood flooring.
7.
Outdoor models require the installation of an optional
outdoor kit. Instructions for mounting the parts in the
kit are included in the venting section of this manual.
Outdoor models MUST NOT be installed directly on
the ground. The outdoor appliance must be installed
on a concrete, brick, block or wood flooring. Outdoor
models have additional special location and clearance
requirements.These are specifically addressed in the
venting section under Outdoor Installation. A windproof/
rainproof cabinet protects the appliance from the weather.
Provide clearances:
Clearances from combustible materials
Right Side - 1" (25.4 mm)
Rear - 1" (25.4 mm)
Left Side - 6" (15 cm) (24" (61 cm) suggested for
service)
Front - 3" (76.2 mm) (24" (61 cm) suggested for
service)
Top - 3" (76.2 mm)
Flue - 1" (25.4mm)
All appliances have been approved for closet installation .
Allow sufficient space for servicing pipe connections, pump
and other auxiliary equipment, as well as the appliance.
Figure 1-3 Installation Clearances
Installation & Service Manual
(continued)
Combustion
and
Requirements
for
Vented Appliances
Provisions for combustion and ventilation air must be
in accordance with Section 5.3, Air for Combustion and
Ventilation, of the latest edition of the National Fuel
Gas Code, ANSI Z223.1, in Canada, the latest edition of
CGA Standard B149 Installation Code for Gas Burning
Appliances and Equipment, or applicable provisions of the
local building codes.
The room where the appliance is installed MUST be
provided with properly sized openings to assure adequate
combustion air and proper ventilation when the appliance
is installed with conventional venting.
Figure 1-4 Combustion Air Direct from Outside
1. If air is taken directly from outside the building with no
duct, provide two permanent openings:
a.
Combustion air opening, with a minimum free
area of one square inch per 4000 Btu/hr input
(5.5cm
per kW). This opening must be located
2
within 12" (30 cm) of the top of the enclosure.
b.
Ventilation air opening, with a minimum free
area of one square inch per 4000 Btu/hr input
(5.5cm
2
per kW). This opening must be located
within 12" (30 cm) of the bottom of the enclosure.
Ventilation
Aire
Conventionally
5
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