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A.O. Smith 100 Series, Installation & Operating Instructions Manual

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A.O. Smith 100 Series Installation & Operating Instructions Manual Download Page 25

25

OPERATING INSTRUCTIONS

TURN OFF GAS TO APPLIANCE

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.

BTH 199/250 MODELS ONLY.

OPERATING INSTRUCTIONS

TURN OFF GAS TO APPLIANCE

Summary of Contents for 100 Series

Page 1: ...E INSTALLING AND USING THISAPPLIANCE INSTALLATION OPERATION SERVICE MAINTENANCE LIMITED WARRANTY WARNING If the information in these instructions is not followed exactly a fire or explosion may result...

Page 2: ...e Natural Gas and Propane Installation Code and CSAC22 1 the Canadian Electrical Code All documents are available from the Canadian Standards Association 8501 East Pleasant Valley Road Cleveland OH 44...

Page 3: ...ABLE OF CONTENTS ROUGH INDIMENSIONS 2 FOREWORD 2 FEATURES 3 4 Water Temperature Control 3 High Limit Switch E C O 4 Dishwashing Machine Requirement 4 Circulating Pump 5 INSTALLATIONINSTRUCTIONS 4 12 R...

Page 4: ...s above 25 pounds per square inch 173 Kpa or below 15 pounds per square inch 103 Kpa will result in improperly sanitized dishes Where pressures are high a water pressure reducing or flow regulating co...

Page 5: ...result in property damage even with the use of a drain pan piped to a drain However unanticipated damage can be reduced or prevented by a leak detector or water shut off device used in conjunction wit...

Page 6: ...NGERSAREUSED THISPREVENTS ANYVIBRATIONS FROM BEINGTRANSMITTED INTOTHE LIVING SPACES HARDWATER Where hard water conditions exist water softening or the threshold type of water treatment is recommended...

Page 7: ...ntally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEPCLEAR OFALLOBSTRUCTIONS INSPECTION The stat...

Page 8: ...U S POWER VENT CANADIAN POWER VENT FIGURE 5b CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THEAIR INTAKE IN WINDY COLDAREAS THE MAXIMUM PRACTICALDISTANCE BETWEEN THESE TWO TERMINALS IS R...

Page 9: ...U S DIRECT VENT CANADIAN DIRECT VENT FIGURE 6b CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THEAIR INTAKE IN WINDY COLDAREAS THE MAXIMUM PRACTICALDISTANCE BETWEEN THESE TWO TERMINALS IS...

Page 10: ...OLLOWED 1 The intake vent terminal and the exhaust vent terminal must terminate on the same exterior wall and must be located at a minimum of 24 61cm from the vertical centerline of the exhaust vent t...

Page 11: ...same side of roof 4 The center line of the intake vent termination and the center line of the exhaust vent termination must be no closer than 24 61cm 5 The intake vent terminal and the exhaust vent t...

Page 12: ...adhesives or ABS cement to join PVC or CPVC pipe and fittings SAFETY PRECAUTION PRIMERS AND CEMENTS ARE EXTREMELY FLAMMABLE AND MUST NOT BE STORED OR USED NEAR HEAT OR OPEN FLAME ALSO USE ONLY INAWELL...

Page 13: ...t the electrical contacts on this air flow switch be open before it will allow the blower to come on BLOCKED OUTLET PROVER SWITCH SEE FIGURE 12 The Blocked Outlet Prover Switch is set up to shut the u...

Page 14: ...WITH RECOMMENDATIONS OF SERVING GAS SUPPLIERS REFER TOTHE NATIONALFUELGAS CODE FIGURE 13 CONNECTION OF GAS PIPE 1 When connecting gas pipe to unit apply wrench to flange only Note Do not use wrench on...

Page 15: ...with an approved temperature and pressure relief valve ASME ratings cover pressure relief CSA ratings cover release rate with temperature actuation FOR SAFE OPERATION OF THE WATER HEATER THE RELIEF V...

Page 16: ...upply Voltage is reversed the controller will not sense flame Verify polarity before connecting the unit 3 This unit may never be connected to any existing heating system or component s previously use...

Page 17: ...y the desktop screen if there are no active faults or warnings An example of this screen is shown to the right The first temperature on this screen is the temperature of the water inside the tank The...

Page 18: ...u DISPLAY ACTION From the Main Menu press Select to enter the Temperatures screen DISPLAY 2 Operating States In the main desktop screen there are some specific Operating States that are indicated on t...

Page 19: ...an occur during operation These are Warnings and Faults Warnings This is a non safety related condition that the control has detected that may cause the water heater to operate in a less than optimal...

Page 20: ...rmation about the water heater and the current status of specific conditions can be found INSTALLATION OR SERVICE OFTHIS WATER HEATER REQUIRESABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE...

Page 21: ...input Once the unit is installed and filled with water and the inlet pressures confirmed simply turn the switch on and observe operation Cycle the unit off and on several times to ensure proper opera...

Page 22: ...cutout at 202 F 94 C The controller must be manually reset by depressing the reset button on front of the control when water temperature drops to below 160 F 71 C TABLE 4 HIGH ALTITUDE INSTALLATIONS...

Page 23: ...3 FORYOUR SAFETYREAD 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 BTH 120 MODELS ONLY...

Page 24: ...FORE 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 BTH 150 MODELS ONLY OPERATINGINSTRUCTIONS...

Page 25: ...FORYOUR SAFETYREAD 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 BTH 199 250 MODELS ON...

Page 26: ...eater 1 Turn off the heater electrical disconnect switch 2 Close the cold water inlet valve to heater 3 Open a nearby hot water faucet to vent the system 4 Open the heater drain valve 5 If the heater...

Page 27: ...may be due to thermal expansion of water in a closed water supply system or it may be due to a faulty relief valve Thermal expansion is the normal response of water when it is heated In a closed syste...

Page 28: ...N OF WATER IN THE HOT WATER SYSTEM MUST BE PROVIDED NOTE CONNECT RETURN LINE FROM HOT WATER CIRCULATING LOOP IF USED TO COLD WATER INLET LINE PIPE TO OPEN DRAIN INSTALLINACCORDANCEWITH LOCALCODES INST...

Page 29: ...PAGE 4 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES CAUTION IF BUILDING COLD WATER SUPPLY HAS A BACK FLOW P...

Page 30: ...DANGER TEMPERATURE SETTING SHOULD NOTEXCEED SAFETEMPERATUREAT FIXTURES SEEWATERTEMPERATURECONTROLWARNINGONPAGE4 IF HIGHERPREHEATTEMPERATURESARENECESSARYTOOBTAINADEQUATE BOOSTER OUTPUT ADD AN ANTI SCAL...

Page 31: ...LOCALCODES TWO TEMPERATURE TWO HEATERS ONE PRE HEATER ONE BOOSTER HEATER WITH OR WITHOUT BUILDING RECIRCULATION DANGER TEMPERATURESETTINGSHOULDNOTEXCEEDSAFETEMPERATUREAT FIXTURES SEE WATER TEMPERATURE...

Page 32: ...LDNOTEXCEEDSAFETEMPERATUREAT FIXTURES SEE WATERTEMPERATURE CONTROLWARNING ON PAGE 5 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER...

Page 33: ...units with the higher water flow may have a shortened life Dimensions shown are for minimum space occupied by the water heaters assemblies Space for the venting system and unit servicing must be adde...

Page 34: ...valve is tightly closed Also check the cleanout opening for leakage 2 The apparent leakage may be condensation which forms on cool surfaces of the heater and piping 3 If the outlet of the relief valv...

Page 35: ...purge portion of the ignition cycle due to the location of the gas orifice MOTOR RUNS BURNER LIGHTS MOMENTARILY THEN LOCKS OUT 1 Reset the appliance two more times to ensure that all of the air has be...

Page 36: ...effective method of controlling thermal expansion is also installed at the heater s and operational at all times The relief valve installed on the heater is not an acceptable method 4 SERVICEAND REPA...

Page 37: ...37 NOTES...

Page 38: ...38 NOTES...

Page 39: ...39 NOTES...

Page 40: ...40 A O SMITH WATER PRODUCTS COMPANY 500 TENNESSEE WALTZ PARKWAY ASHLAND CITY TN 37015 PHONE 1 800 433 2545 FAX 1 800 433 2515 www aosmithwaterheaters com email parts hotwater com...

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