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PRINTED IN U.S.A. 0703

PART NO. 195785-000

GAS MODELS

FPSH - 75

270 Series

with Hot Surface Ignition

Thank you for buying this energy efficient water heater from
A.O. Smith Water Products Company. We appreciate your
confidence in our products.

You should thoroughly read this manual before installation and/
or operation of this water heater. Please pay particular attention
to the important safety and operating instructions as well as
the WARNING and CAUTIONS.

CAUTION

TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY.
PLEASE READ THOROUGHLY BEFORE
INSTALLING AND USING THIS APPLIANCE.

RESIDENTIAL

GAS WATER HEATERS

OWNER'S MANUAL

A DIVISION OF A.O. SMITH CORPORATION

www.hotwater.com

GET TO KNOW YOUR WATER HEATER

GENERAL SAFETY INFORMATION

3-4

INSTALLATION

4-12

OPERATION

12-14

MAINTENANCE AND
TROUBLESHOOTING

14-17

TROUBLESHOOTING WITH THE LED

WARRANTY

TABLE OF CONTENTS

PAGE

KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE

WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.

Содержание FPSH - 75

Страница 1: ...ing instructions as well as the WARNING and CAUTIONS CAUTION TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY PLEASE READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE RESIDENTIAL GAS WATER HEATERS OWNER S MANUAL ADIVISION OFA O SMITH CORPORATION www hotwater com GET TO KNOWYOUR WATER HEATER 2 GENERAL SAFETY INFORMATION 3 4 INSTALLATION 4 12 OPERATION 12 14 MAIN...

Страница 2: ...ly FPSH 75 with Hot Surface Ignition GET TO KNOW YOUR WATER HEATER A VENT PIPE B ANODE C HOT WATER OUTLET D OUTLET 120 VAC E FLUE BAFFLE F GASSUPPLY G MAINMANUALGAS SHUT OFF VALVE H GROUND JOINT UNION J DIRT LEG K OUTER DOOR L UNION M INLET WATER SHUT OFF VALVE N COLD WATER INLET O INLET DIP TUBE P TEMPERATUREAND PRESSURE RELIEF VALVE Q EMBLEMANDRATING PLATE R INSULATION S VENT TERMINAL T DRAIN VA...

Страница 3: ... Go to a neighbor s house leaving your doors open to ventilate the house then call your gas supplier or service agent Keep area clear until a service call has been made At times you may not be able to smell an LP gas leak One cause is odor fade which is a loss of the chemical odorant that gives LP gas its distinctive smell Another cause can be your physical condition such as having a cold or a dim...

Страница 4: ... closet having minimum clearances from combustible material of 0 clearance from sides and rear 5 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 replaceable parts such as the thermostats drain valve and relief ...

Страница 5: ...alve must be installed Please refer to Fig 2 for suggested piping arrangement FIGURE2 CLOSED WATER SYSTEM A closed system will exist if a back flow preventer check valve pressure reducing valve or other similar device is installed in the cold water line between the water heater and the street main or well Excessive pressure may develop due to the thermal expansion of heated water causing premature...

Страница 6: ...nual or on water heater With main burner in operation paint pipe joints including flanges pilot gas tubing connections and control inlet and outlet with rich soap and water solution Bubbles indicate gas leak To stop leak tighten flange screws joints and pipe connections Replace part if leak can t be stopped DISCONNECT THE APPLIANCE AND ITS INDIVIDUAL SHUT OFF VALVE FROM THE GAS SUPPLY PIPING SYSTE...

Страница 7: ...erving power vented appliances are classified by building codes as vent connectors Required clearances from combustible materials must be provided in accordance with information in this manual under LOCATION OF HEATER and INSTALLATION OF VENT SYSTEM and with the National Fuel Gas Code and local codes PLANNING THE VENT SYSTEM Plan the route of the vent system from the discharge of the blower to the...

Страница 8: ...ent terminal by using the cover plate as a template to mark the hole for the vent pipe to pass through the wall BEWARE OF CONCEALED WIRING AND PIPING INSIDE THE WALL 2 If the Vent Terminal is being installed on the outside of a finished wall it may be easier to mark both the inside and outside wall Align the holes by drilling a hole through the center of the template from the inside through to the...

Страница 9: ...sure E Splice field wiring into existing wiring using code authorized method wire nuts etc F Be certain that neutral and line connections are not reversed when making these connections G Ground heater properly This water heater must be grounded on accordance with the National Electric Code ANSI NPA70 and or local codes These must be followed in all cases The water heater must be connected to a gro...

Страница 10: ...be supported every 5 feet of vertical run and every 3 feet of horizontal run All piping and fittings must be joined by the proper procedures as described under VENT PIPE PREPARATION FIGURE9 IMPORTANT The vent system must terminate so that proper clearances are maintained as cited in local codes or the latest edition of the National Fuel Gas Code ANSI Z223 1 and as listed below 1 Vent Termination m...

Страница 11: ... type of cutter is used the flare on the end must be completely removed STEP A NOTE Power saws should be specifically designed to cut plastic pipe B Deburring Use a knife plastic pipe deburring tool or file to remove burrs from the end of small diameter pipe Be sure to remove all burrs from around the inside as well as the outside of the pipe A slight chamfer bevel of about 10 15 should be added t...

Страница 12: ...uld not be disturbed immediately after the cementing procedure and sufficient time should be allowed for proper curing of the joint Exact drying time is difficult to predict because it depends on variables such as temperature humidity and cement integrity For more specific information you should contact your solvent cement manufacturer STEPG OPERATION WARNING DO NOTATTEMPTTO OPERATE WATER HEATER W...

Страница 13: ...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 OPERATINGINSTRUCTIONS 1 STOP Read the safety information above on this label 2 Set the thermostat to the lowest setting 3 Turn the ON OFF switch on the blower control box to the OFF ...

Страница 14: ...xceed the thermostat setting by up to 30 F If you experience this type of use you should consider using lower temperature settings to reduce scald hazards Valves for reducing the point of use temperature by mixing cold and hot water are available See figure 2 Also available are inexpensive devices that attach to faucets to limit hot water temperatures Contact a licensed plumber or the local plumbi...

Страница 15: ...THE DRAFT Operate the water heater for several minutes and check to see if it is venting properly by passing a lit match or paper near the opening of the Air Mixing Box See figure 11 If the draft is proper the match flame will be drawn into the Air Mixing Box If not the combustion products will tend to extinguish the flame If an improper draft exists do not operate the water heater until proper ad...

Страница 16: ...a problem with your water heater before calling for service please refer to the following TROUBLESHOOTING sections If service becomes necessary contact your dealer installer or an authorized service agent Do not attempt to repair the water heater yourself Any work performed by unauthorized personnel may void the warranty If you are having a problem with your A O Smith water heater and are not plea...

Страница 17: ...into 115 vac outlet Repair service to outlet Replace switch Replace control harness Replace blower and motor Replace switch Check for low voltage less than 102 vac have service checked and repaired If voltage is above 102 vac make sure there is not more than 30 Equivalent feet of 3 inch pipe or85 equivalent feet of 4 inch pipe installed or vent terminal blockage If at least 102 vac less than 30 eq...

Страница 18: ...e water heater off for 10 seconds and then back on 2 Replace gas control valve Problem with the internal circuit 1 Turn power to the water heater off for 10 seconds and then back on 2 Replace gas control valve Problem with the internal circuit 1 Turn power to the water heater off for 10 seconds and then back on 2 Replace gas control valve Flame signal sensed out of 1 Replace gas control valve prop...

Страница 19: ...urnish the ORIGINAL OWNER a replacement A O Smith water heater of equivalent size and current model or a replacement part for any component part which fails in normal use in accordance with the warranty terms and conditions specified below THE A O SMITH REPLACEMENT MODEL OR PART WILL BE WARRANTED FOR ONLYTHE UNEXPIRED PORTION OFTHE ORIGINAL WARRANTY The warranty period will be determined by the or...

Страница 20: ...20 A O SMITH WATER PRODUCTS CO INC 5621 W 115TH STREET ALSIP ILLINOIS 60803 PHONE 1 800 433 2545 FAX 1 800 433 2515 www hotwater com E MAIL parts hotwater com ...

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