Operation

recommendations of serving gas supplier. Refer to the latest edition of ANSI Z223.1.

To prevent damage, care must be taken not to apply too much torque when attaching gas supply pipe to thermostat gas inlet. The thermostat inlet has a pad for use with a backup wrench.

Apply joint compounds (pipe dope) sparingly and only to the male threads of pipe joints. Do not apply compound to the first two threads. Use compounds resistant to the action of liquefied petroleum gases. Do not use teflon tape on thermostat fittings.

DISCONNECT THE APPLIANCE AND ITS INDIVIDUAL SHUT OFF VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY SUPPLY PRESSURE TESTING EXCEEDING 1/2 PSI (3.5 kPa). GAS SUPPLY LINE MUST BE CAPPED WHEN DISCONNECTED FROM THE HEATER. FOR TEST PRESSURES AT 1/2 PSI (3.5 kPa) OR LESS, THE APPLIANCE NEED NOT BE DISCONNECTED, BUT MUST BE ISOLATED FROM THE SUPPLY PRESSURE TEST BY CLOSING THE MAIN MANUAL GAS VALVE.

BEFORE PLACING THE HEATER IN OPERATION, CHECK FOR GAS LEAKAGE. USE SOAPAND WATER SOLUTION OR OTHER MATERIAL ACCEPTABLE FOR THIS PURPOSE. DO NOT USE MATCHES, CANDLES, FLAME OR OTHER SOURCES OF IGNITION TO LOCATE GAS LEAKS.

DRAFT HOOD

THE DRAFT HOOD INCLUDED WITH THE HEATER MUST BE INSTALLED PROPERLY FOR SAFE OPERATION.

Locate draft hood as seen in figure 1. Position draft hood over the flue tube. Align the draft hood legs with the four holes surrounding the flue. Insert tabbed end of legs into the corresponding holes and twist to lock the draft hood in place.

When installing vent piping, secure the vent pipe to the draft hood using at least three sheet metal screws in the draft hood outlet.

VENTING

THE HEATER WITH DRAFT HOOD INSTALLED AS SHOWN IN FIG. 1 MUST BE CONNECTED TO A CHIMNEY OR GAS VENT. The vent pipe from the heater to the chimney must not be smaller than the outlet of the draft hood on the heater and should slope upward to the chimney at least 1/4 inch per foot. Do not extend vent pipe beyond the inside wall of the chimney.

For proper venting in certain installations, a field installed increased size vent connector and pipe size may be needed. Consult vent tables in the latest edition of the National Fuel Gas Code ANSI Z 223.1

WARNING

NEVER OPERATE THE HEATER UNLESS IT IS VENTED TO THE OUTDOORS AND HAS ADEQUATE AIR SUPPLY TO AVOID RISKS OF IMPROPER OPERATION, FIRE, EXPLOSION OR ASPHYXIATION.

RELIEF VALVE - FIG. 1

A NEW TEMPERATURE AND PRESSURE RELIEF VALVE COMPLYING WITH THE STANDARD FOR RELIEF VALVES AND AUTOMATIC GAS SHUT OFF DEVICES FOR HOT WATER SUPPLY SYSTEMS, ANSI Z21.22 (LATEST EDITION) MUST BE INSTALLED IN THE HEATER IN THE MARKED OPENING PROVIDED. THE VALVE MUST BE OF A SIZE (INPUT RATING) THAT WILL BE ADEQUATE FOR YOUR SIZE HEATER.

Check the metal tag on the relief valve and compare it to the heater’s rating plate. The pressure rating of the relief valve must not exceed the working pressure shown on the rating plate of the heater. In addition, the hourly Btu rated temperature steam discharge capacity of the relief valve shall not be less than the input rating of the heater. NO VALVE IS TO BE PLACED BETWEEN THE RELIEF VALVE AND TANK. DO NOT PLUG THE RELIEF VALVE.

The drain line connected to this valve must not contain a reducing coupling or other restriction and must terminate near a suitable drain to prevent water damage during valve operation. The discharge line shall be installed in a manner to allow complete drainage of both the valve and line. DO NOT THREAD, PLUG OR CAP THE END OF THE DRAIN LINE.

PIPE INSULATION - INSTALLATION

(SELECTED MODELS)

1.Remove pipe insulation from carton.

2.Fit pipe insulation over the incoming cold water line and the hot water line. Make sure that the insulation is against top cover of heater.

FIGURE3

NEVER OPERATE THE HEATER WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH WATER AND A TEMPERATURE AND PRESSURE RELIEF VALVE IS INSTALLED IN THE RELIEF VALVE OPENING OF THE HEATER. DO NOT ATTEMPT TO OPERATE HEATER WITH COLD WATER INLET VALVE CLOSED.

FILLING

1.Close the heater drain valve by turning handle clockwise, Fig. 1.

2.Open a nearby hot water faucet to permit the air in the system to escape.

3.Fully open the cold water inlet pipe valve allowing the heater and piping to be filled, Fig. 1.

4.Close the hot water faucet as water starts to flow.

5.The heater is ready to be operated.

184769-000 specifications

A.O. Smith 184769-000 is a notable water heater model that epitomizes efficiency and reliability in the realm of home appliances. As part of A.O. Smith’s comprehensive line of water heating solutions, this product showcases cutting-edge technologies and features that cater to contemporary household demands.

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In summary, the A.O. Smith 184769-000 stands out for its energy efficiency, durable construction, user-friendly digital controls, and robust safety features. These characteristics make it a reliable choice for any homeowner looking to enhance their hot water supply system. Whether upgrading an existing unit or installing a new water heater, this model is engineered to meet and exceed expectations.