4
INSTALLATION
REQUIRED ABILITY
INSTALLATION OR SERVICE OF THIS WATER HEATER
REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED
TRADESMAN IN THE FIELD INVOLVED. PLUMBING, AIR
SUPPLY, VENTING AND GAS SUPPLY ARE REQUIRED.
GENERAL
The installation must conform to these instructions and the local
code authority having jurisdiction. In the absence of local codes,
the installation must comply with the latest editions of the National
Fuel Gas Code ANSI Z223.1/NFPA 54 and the National Electrical
Code, NFPA 70. The former is available from the Canadian
Standards Association, 8501 East Pleasant Valley Road,
Cleveland, OH 44131, and both documents are available from
the National Fire Protection Association, 1 Batterymarch Park,
Quincy, MA 02269.
HIGH ALTITUDE INSTALLATION
WARNING
INSTALLATIONS ABOVE 6500 FEET REQUIRE REPLACEMENT
OF THE BURNER ORIFICE IN ACCORDANCE WITH THE
NATIONAL FUEL GAS CODE (ANSI Z223.1/NFPA 54). FAILURE
TO REPLACE THE ORIFICE WILL RESULT IN IMPROPER AND
INEFFICIENT OPERATION OF THE APPLIANCE, PRODUCING
CARBON MONOXIDE GAS IN EXCESS OF SAFE LIMITS,
WHICH COULD RESULT IN SERIOUS PERSONAL INJURY OR
DEATH.
LOCATION OF HEATER
The heater is design certified by the American Gas Association
for installation on combustible flooring in a closet having minimum
clearances from combustible material of: 0" clearance from sides
and rear, 4" from the front and 12" from the top. (Standard
clearance.) If clearances stated on the heater differ from standard
clearances, install water heater according to clearances stated
on heater.
Adequate clearance for servicing this appliance should be
considered before installation, such as changing the anodes, etc
A minimum clearance of 4" must be allowed for access to
replaceable parts such as the thermostats, drain valve and relief
valve.
When installing the heater, consideration must be given to proper
location. Location selected should be as close to the wall as
practicable and as centralized with the water piping system as
possible.
AIR REQUIREMENTS
Dilution air temperature must be 100°F or less. In calculating the
free area of a vent opening, the blocking effect of screens, louvers
and grills should be considered. Screens shall not be of a mesh
smaller than 1/4 inch square. If the free area is not known, the
latest edition of National Fuel Gas Code ANSI Z223.1
recommends using figures of 20-25 percent free area for wood
louvers or 60-75 percent for metal grills or louvers.
UNCONFINED SPACE
In buildings of conventional frame, brick or stone construction,
unconfined spaces may provide adequate air for combustion,
ventilation, and dilution air for power venter.
If the unconfined space is within a building of tight construction
(as defined in the most recent revision of the National Fuel Gas
Code Handbook), air for combustion, ventilation, and venter
dilution must be obtained from outdoors. The installation
instructions for confined spaces must be followed.
CONFINED SPACE
When drawing combustion and dilution air from inside a
conventionally constructed building to a confined space, such a
space shall be provided with two permanent openings; ONE
WITHIN 12 INCHES OF THE ENCLOSURE TOP AND ONE IN
OR WITHIN 12 INCHES OF THE ENCLOSURE BOTTOM. Each
opening shall have a free area of one square inch per 1000 Btuh
of the total input of all appliances in the enclosure, but not less
than 100 square inches.
If the confined space is within a building of tight construction, air
for combustion, ventilationand power venter dilution must be
obtained from outdoors. When directly communicating with the
outdoors or communicating through vertical ducts, two permanent
openings, located in the above manner, shall be provided. Each
opening shall have a free area of not less than one square inch
per 4000 Btuh of the total input of all appliances in the enclosure.
If horizontal ducts are used, each opening shall have a free area
of not less than one square inch per 2000 Btuh of the total input
of all appliances in the enclosure.
CAUTION
In cold climates provide protection against freeze-up.
Installation:
Do not install water heater
where flammable products
will be stored or used unless
the main burner and hot
surface igniter are at least
18” above the floor. This will
reduce, but not eliminate, the
risk of vapors being ignited
by the main burner or hot
surface igniter.
