TYPICAL INSTALLATION

GET TO KNOW YOUR WATER HEATER - GAS MODELS

A

Vent Pipe

Q

Rating Plate

H H

Bushing

B

Anode

R

Insulation

II

Nipple

C

Hot Water Outlet

S

Vent Terminal

J J

Condensate Tee

D

Outlet (120 VAC)

T

Drain Valve

K K

Hose Barb

F

Gas Supply

U

Igniter And Main Burner

LL

Plug

G

Main Manual Gas Shut Off Valve

W

Drain Pan

MM

Vent Pipe Assembly #1

H

Ground Joint Union

X

Control

NN

Vent Pipe Assembly #2

J

Dirt Leg

Y

Control Harness*

O O

Vent Pipe Assembly #3

K

Outer Door

AA

Motor & Blower

PP

Side Recirculation Loop

L

Union

CC

Condensate Fitting

Q Q

Inlet***

M

Inlet Water Shut Off Valve

D D

(4 Places Shown)**

Side Recirculation Loop

N

Cold Water Inlet

Plastic Top

R R

Outlet*** (not shown)

O

Inlet Dip Tube

E E

On/Off Switch

Vent Attenuation

P

Temperature & Pressure

F F

Exhaust Tee

SS

Assembly (VAA) (Optional)

 

Relief Valve

G G

Elbow

Access Door

REPLACEMENT PARTS AND DELIMING

PRODUCTS

Replacement parts and recommended delimer may be ordered through authorized servicers or distributors. When ordering parts, provide complete model and serial numbers (see rating plate), quantity and name of part desired. Standard hardware items may be purchased locally.

CONDENSATE ASSEMBLY

(U) NATURAL GAS MAIN BURNER

WITH IGNITER ASSEMBLY

SIDE VIEW

VACUUM RELIEF

VALVE

*INSTALL PER LOCAL CODES

*CAUTION HARNESS HAS 120 VAC. IN OPERATION.

**See "PLANNING THE VENT SYSTEM", "CONDENSATE" and "BLOWER ASSEMBLY INSTALLATION" for

more information.

***The side recirculation loop connections may not be used as the primary water inlet and outlet connections. For your convenience, plugs are installed in these fittings at the factory. Remove these plugs if needed for your specific installation. Otherwise (as with all connections) check for leaks while filling the tank with water and after completing the installation.

FIGURE 1

(X)TEMPERATURE INDICATORS

TEMPERATURE ADJUSTMENT BUTTONS

6

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A.O. Smith W/HOT Typical Installation, Replacement Parts and Deliming Products, Relief Valve Elbow Access Door

W/HOT specifications

A.O. Smith, a leading manufacturer of water heating solutions, has made its mark in the industry with innovative products that combine efficiency, reliability, and advanced technology. Among its standout offerings is the A.O. Smith W/HOT series, designed to meet the diverse needs of residential and commercial customers.

The W/HOT series showcases a variety of tankless water heaters characterized by their ability to provide endless hot water on demand. Unlike traditional tank water heaters, which can run out of hot water during heavy usage, the W/HOT series ensures a constant supply, making it an ideal choice for families and businesses with high hot water needs. This feature not only enhances convenience but also optimizes energy usage by eliminating the standby heat loss associated with storage tanks.

One of the key technologies integrated into the W/HOT series is the microprocessor control system. This intelligent technology allows the unit to monitor water usage patterns and adjust operation accordingly. By optimizing heating cycles based on actual demand, this feature helps improve energy efficiency, resulting in lower utility bills without compromising performance.

The W/HOT series also incorporates advanced heat exchanger technology, enabling rapid heating of water as it passes through the system. This means minimal wait time for hot water and reduced energy consumption, as the unit only heats water when it is needed. The heat exchangers are designed for durability and effective heat transfer, helping to extend the overall lifespan of the unit.

Safety is a top priority in the design of A.O. Smith water heaters. The W/HOT series is equipped with multiple safety features, including a built-in thermal shut-off switch and safety sensors that prevent overheating. Additionally, the units are designed to comply with industry standards and regulations, ensuring peace of mind for users.

Installation flexibility is another defining characteristic of the W/HOT series. These tankless water heaters can be installed in various locations, requiring minimal space compared to traditional units. Their compact design makes them suitable for tight spaces, such as closets or utility rooms.

Overall, the A.O. Smith W/HOT series represents a commitment to innovation and quality in water heating solutions. Its combination of tankless design, advanced technology, and safety features makes it an excellent choice for those seeking efficient and reliable hot water access. Whether for residential or commercial use, A.O. Smith continues to lead the way in delivering top-tier water heating solutions that meet the evolving needs of consumers.