FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

A.This appliance has a pilot that is lit by a piezo-electric spark gas ignition system. Do not open the inner door of the appliance and try to light the pilot by hand.

B.BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gases are heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electric switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbour’s phone. Follow the gas supplier’s instructions.

If you cannot reach your gas supplier, call fire department.

C.Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don't try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

D.Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

LIGHTING AND OPERATING INSTRUCTIONS

1.STOP! Read the safety information above on this label.

2.Set the thermostat to lowest setting.

3.This appliance has a pilot that is lit by a spark gas ignition system. Do not try to light the pilot by hand.

4.Remove the outer burner door.

5.Push the gas control knob down slightly and turn clockwise to "OFF" (see

Figure "A").

NOTE: Knob CANNOT be turned from "PILOT" to "OFF" unless it is pushed down slightly. Do not force.

6.Wait ten (10) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information above on this label. If you don’t smell gas, go to the next step.

7.Make sure the water heater is filled with water.

8.Turn gas control knob counterclockwise to "PILOT" (see Figure "A").

9.Depress the gas control knob all the way in and IMMEDIATELY depress the igniter button until you hear a loud click. Observe the pilot through the view port. Do not release the gas control knob. Repeat immediately if pilot does not light on the first try. If the pilot does not light by the fourth attempt with the igniter, repeat steps 5-9. Continue to hold the button for about one (1) minute

after the pilot is lit. Release the gas control knob and it will pop back up. Pilot should remain lit. If the pilot light goes out, repeat steps 5-9.

IMPORTANT: If the pilot will not stay lit after several tries, turn gas control knob to "OFF" and call your service technician or gas supplier.

IMPORTANT: If the gas control knob does not pop up to its original position when released, stop and immediately shut off the gas at the line valve or tank. Call your service technician or gas supplier.

10.Turn gas control knob counter-clockwise to "ON" (see Figure "A").

11.Once the pilot flame is established replace the outer burner door.

12.Set thermostat to desired setting.

13.If the pilot will not stay lit after several tries, turn the gas control knob clock-

wise to "OFF" (see Figure "A"). If the appliance will not operate, follow the instructions "To Turn Off Gas To Appliance" and call a qualified service tech- nician or gas supplier.

TO TURN OFF GAS TO APPLIANCE

Figure A

PILOT

THERMO-

COUPLE

ELECTRODE

“OFF” Position

Gas Control Knob

Top View

Gas Control Knob

Igniter

Button

Thermostat Dial

Gas Control

1.Set thermostat to the lowest setting (PILOT LIGHTING).

2.Push the gas control knob down slightly and clockwise to the “OFF” position. Do not force.

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A.O. Smith GDV-40, GDVT-50, GDV-50, GDV-75, 186589-004 instruction manual Figure a

186589-004, GDVT-50, GDV-75, GDV-40, GDV-50 specifications

A.O. Smith is a recognized name in the water heating industry, known for its reliable and efficient water heaters. Among its notable products are the GDV-50, GDV-40, GDV-75, GDVT-50, and 186589-004 models. These water heaters offer enhanced performance, energy efficiency, and modern technologies suited for residential and commercial applications.

The GDV series includes the GDV-50, GDV-40, and GDV-75 models, which feature a robust design typically made from high-quality materials to ensure longevity. These units come equipped with advanced insulation, which minimizes heat loss and increases efficiency, making them excellent choices for households with varying hot water needs.

The GDV-50 model boasts a tank capacity of 50 gallons, making it suitable for medium to large households. It features a powerful heating element that heats water quickly, providing ample hot water for daily use. Meanwhile, the GDV-40 is designed for smaller households with a 40-gallon capacity. This model strikes a balance between size and efficiency, catering to lighter hot water demands while maintaining excellent performance.

For larger households, the GDV-75 provides a 75-gallon capacity, ensuring that even the most demanding hot water applications can be met with ease. This model is particularly ideal for families that require hot water in large quantities or at peak times.

The GDVT-50 is a versatile model that features advanced technology, such as an integrated digital display that allows users to monitor and adjust settings easily. This offers greater control over temperature settings and energy usage, making it not only convenient but also more energy-efficient.

The A.O. Smith 186589-004 is an accessory designed for specific model enhancements that improve overall performance and safety. It may include additional safety features, such as high-temperature limit switches and automatic shut-off mechanisms that provide peace of mind for users.

All these models are equipped with A.O. Smith’s innovative technologies, including advanced thermostat controls and durable components designed to withstand frequent use. They typically come with generous warranties, underscoring the manufacturer's commitment to quality and customer satisfaction.

In summary, A.O. Smith water heaters, particularly the GDV-50, GDV-40, GDV-75, GDVT-50, and 186589-004, are built for efficiency, reliability, and performance. With various capacities and the latest technologies, they cater to the diverse needs of homeowners and businesses, ensuring that hot water is always available when needed.