American Water Heater AHCG3/HCG360T120 Operations Instructions Page 1

1PLACE THESE INSTRUCTIONS ADJACENT TO HEATER ANDNOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.PRINTED 0608 198154-000HIGH EFFICIENCY AHCG3/HCG360T120 thr

10IMPORTANTThe vent system must terminate so that proper clearances are maintained as cited in local codes or the current editions of the National Fue

115. Glue the intake vent terminal to the section of the pipe.6. Slide the wall plate over the pipe to stop against intake vent terminal.7. Place a

12Propane Installation Code which requires the vent system components be certied to ULC S636.This water heater has been design certied to be

13LOW GAS PRESSURE SWITCH(SEE FIGURE 12)The Low Gas Switch (LGS) is a single-pole, normally open pressure switch that will close its contacts when a r

14 WARNINGTHE HEATER IS NOT INTENDED FOR OPERATION AT HIGHER THAN 10.5" (2.59 KPa) WATER COLUMN SUPPLY GAS PRESSURE. HIGHER GAS SUPPLY PRESSUR

15DISCONNECT THE APPLIANCE AND ITS MANUAL GAS SHUTOFF VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY SUPPLY PRESSURE TESTING EXCE

16CONDITIONER MUST BE INSTALLED IF THE ABOVE CONDITIONS EXIST. MALFUNCTIONS CAUSED BY A POOR ELECTRICAL SUPPLY ARE NOT COVERED UNDER YOUR WARRANTY.The

17USING THE ELECTRONIC CONTROLLER1. OverviewInteraction with the water heater controller is done through an up, a down, and three operation buttons. T

183. Adjusting the Operating Set PointThe Operating Set Point of this water heater determines the regulated temperature for the water in the tank. Th

194. Changing the Display UnitsThe display interface to the heater has the option of selecting between de-grees Fahrenheit and degrees Celsius for te

2These designs comply with the current version of the American National Standard for Gas Water Heaters, Volume III, ANSI Z21.10.3 / CSA 4.3 as an aut

20ACTION: To get to the current fault information screen, press Menu.DISPLAY:ACTION: Press the DOWN button to highlight "current Fault" and

21 5. Check the vent system seams and joints and ensure that there is no discharge of ue products into the room. 6. Check the input rate.F

22 WARNINGUNDER NO CIRCUMSTANCES SHOULD THE INPUT EXCEED THE RATE SHOWN ON THE HEATER RATING PLATE. OVER FIRING COULD RESULT IN DAMAGE OR SOOTING OF T

23FOR YOUR SAFETY READ BEFORE OPERATINGWARNING: If you do not follow these instructions exactly, a re or explosion may result causing property damag

24FOR YOUR SAFETY READ BEFORE OPERATINGWARNING: If you do not follow these instructions exactly, a fire or explosion may result causing

25AHCG3/HCG3100T199 & AHCG3/HCG3100T250 MODELS ONLY.OPERATING INSTRUCTIONSTURN OFF GAS TO APPLIANCEFOR YOUR SAFETY READ BEFORE OPERATINGWARNING:

26FIGURE 16.To dissolve and remove the more stubborn mineral deposits, manufacturer's UN•LIME® Professional Delimer should be used.The manufactur

27DRAIN VALVE AND ACCESS PANELSThe heaters are equipped with a 3/4" drain valve.An access panel covers the cleanout opening in the tank which is

28ONE TEMPERATURE - ONE HEATER HORIZONTAL STORAGE TANK FORCED CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION DANGERTEMPERATURE SETTING SHOULD N

29*PIPE RELIEF VALVE TO OPEN DRAIN.NOTE: I F T E M P E R E D WAT E R I S RECIRCULATED, RETURN LINE SHOULD BE CONNECTED AT POINT “A”.INSTAL

3 DANGERTHIS WATER HEATER IS EQUIPPED WITH AN ADJUSTABLE THERMOSTAT TO CONTROL WATER TEMPERATURE. HOT WATER TEMPERATURES REQUIRED FOR A

30TWO TEMPERATURE - TWO HEATERS HIGH TEMPERATURE WITH OR WITHOUT BUILDING RECIRCULATIONTWO TEMPERATURE - THREE HEATERS (TWO PRE-HEATERS/ONE BOOSTER HE

31* PIPE RELIEF VALVE TO OPEN DRAIN** 140°F (60°C) TO 150°F (66°C) SHOULD BE MAXIMUM WATER TEMPERATURE MAINTAINED IN THE PRE-HEATERS. 120°

32NOTE 1: TOGGLE SWITCH CONTROLS 180°F (82°C) WATER CIRCULATION. INSTALL ON OR CLOSE TO DISHWASHER. TOGGLE SWITCH MUST BE CLOSED (ON)

33MANIFOLD KITSPrecision cut type “L” all copper manifold kits assure water ow balance of all units. Without this balance, the full water heating and

34CHECKLIST AND SERVICE INFORMATIONIMPORTANTThe installer may be able to observe and correct certain problems which might arise when the unit is

35MOTOR WILL NOT RUN1. Conrm 120V AC to the controller. Also, to verify correct polarity, check for 120 V AC between hot supply and ground. If ther

36Commercial Limited WarrantyAmerican Water Heater Company, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater.1.

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4temperature be set for the lowest temperature which satises your hot water needs. This will also provide the most energy efcient operation of the w

40PO Box 1597, 500 Princeton RoadJohnson City, TN 37605Phone: 1-800-456-9805www.americanwaterheater.com

5LOCATING THE HEATER WARNINGTHERE IS A RISK IN USING FUEL BURNING APPLIANCES SUCH AS GAS WATER HEATERS IN ROOMS, GARAGES OR OTHER AREAS WHERE

6If the conned space is within a building of tight construction, air for combustion and ventilation must be obtained from outdoors. When directly co

7For all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters installed in every dwelling

8FIGURE 5a.U.S. POWER VENTCANADIAN POWER VENTFIGURE 5b.CAUTIONTO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKEIN WINDY/COLD AREAS,

9FIGURE 6a.U.S. DIRECT VENTCANADIAN DIRECT VENTFIGURE 6b.CAUTIONTO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKEIN WINDY/COLD AREA