INSTALLATION
If the unconfined space is within a building of tight construction (building using the following construction: weather stripping, heavy insulation, caulking, vapor barrier, etc.), air for combustion, venti- lation, and draft hood dilution must be obtained from outdoors. The installation instructions for confined spaces must be followed.
REQUIRED ABILITY
INSTALLATION OR SERVICE OF THIS WATER HEATER RE- QUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED. PLUMBING, AIR SUP- PLY, 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. The code is available from the Canadian Standards Association, 8501 East Pleasant Valley Road, Cleveland, OH 44131.
LOCATION OF HEATER
The heater is design certified by the American Gas Association for installation on combustible flooring in a closet having minimum clear- ances 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.
A minimum clearance of 4" must be allowed for access to replace- able parts such as the thermostats, drain valve and relief valve.
Adequate clearance for servicing this appliance should be consid- ered before installation, such as changing the anodes, etc. Mini- mum clearances for proper operation are given above.
When installing the heater, consideration must be given to proper location. Location selected should be as close to the stack or chim- ney as practicable with adequate air supply and as centralized with the water piping system as possible.
WARNING
For California installation this water heater must be braced, anchored, or strapped to avoid falling or moving during an earthquake. See instructions for correct installation procedures. Instructions may be obtained from your local dealer, wholesaler, public utilities or California's Office of the State Architect, 400 P Street, Sacramento, CA 95814.
AIR REQUIREMENTS
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
Installation: | at least 18" above the floor. This |
Do not install water heater | |
where flammable products will | will reduce, but not eliminate, the |
be stored or used unless the | risk of vapors being ignited by |
main burner and pilot flames are | the main burner or pilot flame. |
CONFINED SPACE
When drawing combustion and dilution air from inside a conven- tionally constructed building to a confined space, such a space shall be provided with two permanent openings. ONE IN OR WITHIN 12 INCHES OF THE ENCLOSURE TOP AND ONE IN OR WITHIN 12 INCHES OFTHE ENCLOSURE BOTTOM. Each opening shall have a free area of at least 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, ventilation and draft hood 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
UNCONFINED SPACE | In cold climates provide protection against |
| SHOULD BE LOCATED IN AN AREA WHERE LEAKAGE OF THE |
In buildings of conventional frame, brick or stone construction, un- | TANK OR CONNECTIONS WILL NOT RESULT IN DAMAGE TO |
confined spaces may provide adequate air for combustion, ventila- | THE AREA ADJACENTTOTHE HEATER ORTO LOWER FLOORS |
tion, and draft hood dilution. | OF THE STRUCTURE. When such locations cannot be avoided, |
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