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 20-25 percent free area for wood lou- vers or 60-75 percent for metal grills or louvers.

Installation:	at least 18" above the floor. This
Do not install water heater	at least 18" above the floor. This
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 freeze-up. THE HEATER
	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,

AOSRG45200 specifications

A.O. Smith is a renowned name in the water heating industry, known for its commitment to innovation, efficiency, and sustainability. One of their standout products, the A.O. Smith AOSRG45200, exemplifies these core values through its advanced features and technologies. This gas water heater is designed to provide reliable hot water for residential use, ensuring comfort and convenience for households.

The AOSRG45200 has a storage capacity of 50 gallons, making it suitable for medium to large homes that require a consistent supply of hot water for various applications, such as bathing, cooking, and cleaning. This model is equipped with a powerful 40,000 BTU gas burner, which enhances its heating efficiency, reducing recovery time and ensuring that hot water is available when you need it.

One of the most notable features of the AOSRG45200 is its energy efficiency. It boasts an Energy Factor (EF) of up to 0.67, which indicates higher efficiency in converting energy into hot water. This means users can save on utility bills while also contributing to environmental sustainability by reducing energy consumption. The water heater also meets the stringent requirements of the Energy Star certification, a testament to its design that prioritizes energy efficiency.

The A.O. Smith AOSRG45200 incorporates advanced safety features as well, including a thermocouple that senses when the pilot light is lit, ensuring that gas flow is shut off if the flame goes out. Additionally, the unit features a factory-installed pressure relief valve to prevent overheating and excessive pressure buildup, guaranteeing safe operation.

In terms of design, the AOSRG45200 is built for durability, featuring a glass-lined tank that helps prevent corrosion. Its compact design allows for easy installation in various spaces within the home, whether in a basement or utility room. The unit is also equipped with a standard vent pipe that simplifies the installation process.

Overall, the A.O. Smith AOSRG45200 is a reliable and efficient choice for homeowners seeking a dependable gas water heater. With its combination of robust features, energy efficiency, and safety measures, it stands out as a practical solution for meeting hot water demands while keeping energy costs down. For those considering an upgrade or replacement, this model represents an investment in quality, efficiency, and peace of mind.

INSTALLATION