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14

INSTALLATION DIAGRAMS-TOP INLET/OUTLET USAGE

GENERAL

The  type,  size  and  location  of  the  relief  valves  must  be  in 

accordance with local codes.  The locations of the relief valves 

shown in the installation diagrams are typical.  The heater has a 

factory installed high temperature limit switch and temperature 

and pressure relief valve.

Cold water lines to heater should be installed as shown in order

 

to minimize gravity circulation of hot water to building cold water 

lines.

A listed temperature and pressure relief valve of adequate capacity 

is installed on the heater.  The locations shown in the installation 

diagrams on the following pages are typical.

The  discharge  opening  of  the  temperature  and  pressure  relief 

valve,  located in front of the heater must be piped to an open drain 

and should not be subject to freezing temperatures.

Install in accordance with all local codes.

Use of the top inlet water connection requires installation of an inlet 

dip tube (refer to figure 11).   The tube is supplied in the heater. 

Follow caution labels if  applying heat to this fitting. Do not allow 

pipe dope to contact the plastic tube during installation.

CODE RESTRICTIONS

Use  of  the  top  inlet  water  connection  is  not  permitted  on 

installations in the state of North Carolina, due to the material of 

the tube (Polypropylene).  Where such code restrictions exist, use 

only lower inlet tank connection.  This may also require a heat 

trap - check local codes. The “Top Outlet” connection may still be 

used on these applications.  Plug or cap all unused openings in 

the tank before filling with water.

 DANGER

TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE 

TEMPERATURE AT FIXTURES.  SEE WATER TEMPERATURE 

CONTROL  WARNING  ON  PAGE  25.    IF  HIGHER  PREHEAT 

TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE 

BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT 

WATER SUPPLIED TO FIXTURES.

TUBE INLET INSTALLATION

FIGURE 13

BEFORE PLACING THE HEATER IN OPERATION, CHECK FOR 

GAS LEAKAGE.

 Use soap and water solution or other material 

acceptable for the purpose in locating the leaks.  

DO NOT USE 

MATCHES,  CANDLES,  FLAME  OR  OTHER  SOURCES  OF 

IGNITION FOR THIS PURPOSE.

DISCONNECT  THE  HEATER  AND  ITS  MANUAL  GAS 

SHUT-OFF  VALVE  FROM  THE  GAS  SUPPLY  PIPING 

SYSTEM  DURING  ANY  SUPPLY  PRESSURE  TESTING 

EXCEEDING  1/2  PSIG  (3.5  kPa).    GAS  SUPPLY  LINE 

MUST  BE  CAPPED  WHEN  DISCONNECTED  FROM 

THE  HEATER  FOR  TEST  PRESSURES  OF  1/2  PSIG  

(3.5  kPa)  OR  LESS.  THE  APPLIANCE  NEED  NOT  BE 

DISCONNECTED,  BUT  MUST  BE  ISOLATED  FROM  THE 

SUPPLY PRESSURE TEST BY CLOSING THE MANUAL GAS 

Shut-off VALVE.

GAS METER SIZE — NATURAL GASES ONLY

Be sure the gas meter has sufficient capacity to supply the full 

rated gas input of the water heater as well as the requirements of 

all other gas fired equipment supplied by the meter.  If gas meter 

is too small, ask the gas company to install a larger meter having 

adequate capacity.

GAS PRESSURE REGULATOR

The  gas  pressure  regulator  is  built  into  the  gas  valve  and  is 

equipped to operate on the gas specified on model and rating 

plate.  The regulator is factory adjusted to deliver gas to burner 

at correct water column pressure allowing for a nominal pressure 

drop through the controls.

The minimum gas supply pressure for input adjustment must not 

be less than 4.5” w.c. (1.12 kPa) for natural gas and 11.0” w.c. 

(2.74 kPa) for propane gas.

Do  not  subject  the  combination  gas  valve  to  inlet  gas 

 

pressures  of  more  than  14.0”  W.C.  (3.48  kPa)  -  natural  gas, 

 

14.0”  W.C.  (3.48  kPa)-  propane  gas.    A  service  regulator  is 

necessary if higher gas pressures are encountered.

Gas pressure specified in Table 5, refer to flow pressure taken at 

pressure tap of automatic gas valve while heater is operating.

GROUNDING INSTRUCTIONS

This  water  heater  must  be  connected  to  a  grounded  metal, 

permanent wiring system; or an equipment grounding conductor 

must  be  run  with  the  circuit  conductors  and  connected  to  the 

equipment grounding terminal or lead on the water heater.

HEATER WIRING

All electrical work must be installed in accordance with the current 

edition of the National Electrical Code

 NFPA 70 and must conform 

to all local code authority having jurisdiction. 

 AN ELECTRICAL 

GROUND IS REQUIRED TO REDUCE RISK OF ELECTRICAL 

SHOCK OR POSSIBLE ELECTROCUTION (see FIGURE 12).

If any of the original wire as supplied with the appliance must be 

replaced, use only type 105°C thermoplastic or equivalent.  250°C 

type F must be used for the flame sensor leads and the spark 

ignition cable must be high voltage 250°C.

Summary of Contents for ABCG3

Page 1: ...R FUTURE REFERENCE P O Box 1597 500 Princeton Road Johnson City TN 37605 CAUTION TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY PLEASE READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE Thank you for buying this energy efficient water heater from American Water Heater Company We appreciate your confidence in our product PRINTED 0609 197935 001 ANSI NSF 5 ...

Page 2: ...7 75 70 cm NA NA 1 50 1 50 1 50 1 50 NA NA 1 50 1 50 1 50 1 50 750 Lbs 341 Kg 862 Lbs 391 Kg A BCG3 85T360 s 365 000 BTU Hr 107 kW Hr 85 Gal 322 L 79 50 202 cm 4 50 12 cm 70 25 178 cm 62 50 159 cm 22 50 57 cm 23 58 cm 3 4 3 4 63 00 160 cm 8 20 cm 27 75 70 cm 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 725 Lbs 329 Kg 833 Lbs 379 Kg A BCG3 100T390 s 390 000 BTU Hr 114 kW Hr 100 Gal 3...

Page 3: ...32 Electrical Servicing 32 Replacement Parts 32 Effikal Flue Damper Troubleshooting Guide 33 Operational Checklist 34 Limited Warranty 35 Page FOREWORD These designs comply with ANSI Z21 10 3 CSA 4 3 as an automatic circulating or automatic storage tank type water heater Heaters having an input of 305 000 89 Kwh 365 000 107 Kwh and 390 000 117 Kwh Btuh with a recovery rating of 277 3 gph 1049 Lph ...

Page 4: ...y explosive and heavier than air It collects first in the low areas making its odor difficult to detect at nose level If LP gas is present or even suspected do not attempt to find the cause yourself 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 s...

Page 5: ... elevation Correct orifice sizing and parts may be obtained from American Water Heater Company When ordering be sure to state the model number and the altitude of the location where the water heater is being installed Upon completion of derating of the heater adjustment to the gas pressure regulator may be required See CHECKING THE INPUT section in this manual for inlet and manifold pressure requi...

Page 6: ... a problem with the damper the Service Switch can be placed in the HOLD OPEN DAMPER position When the switch is placed in the HOLD OPEN DAMPER position the damper disc will rotate to the open position and the heater may be used until vent assembly is repaired or replaced DO NOT turn the damper disc manually damage will occur to the drive assembly if operated manually Refer to TESTING DAMPER OPERAT...

Page 7: ...gure 6 and Table 2 The following units are approved for installation with side rear and ceiling clearances as indicated below The National Sanitation Foundation also recommends circulation of 180 F 82 C water Where this is done the circulation should be very gentle so that it does not cause any unnecessary turbulence inside the water heater The circulation should be just enough to provide 180 F 82...

Page 8: ...ails of tank cleanout procedure AIR REQUIREMENTS REFER TO THE CURRENT EDITION OF THE NATIONAL FUEL GAS CODE ANSI Z223 1 NFPA 54 WARNING KEEPAPPLIANCEAREACLEARAND FREE OF COMBUSTIBLE MATERIALS GASOLINEAND OTHER FLAMMABLES VAPORS AND LIQUIDS DO NOT OBSTRUCT THE FLOW OF COMBUSTION OR VENTILATING AIR WARNING FOR SAFE OPERATION PROVIDE ADEQUATE AIR FOR COMBUSTION AND VENTILATION AN INSUFFICIENT SUPPLY ...

Page 9: ...ING OR RISKS OF FIRE AND ASPHYXIATION Heater must be protected from freezing downdrafts Remove all soot or other obstructions from the chimney that will retard a free draft Type B venting is recommended with these heaters See table 3 TECHNICAL DATA VENTING This water heater must be vented in compliance with all local codes the current edition of the National Fuel Gas Code ANSI Z223 1 and with the ...

Page 10: ... 7 154 000 2 Ft 7 7 7 7 7 6 6 6 154 000 3 Ft 7 7 7 6 6 6 6 6 Numbers Combined Input of Heaters in Thousands of Btuh Manifold and Common Vent Diameter in inches 2 308 10 10 10 8 8 7 7 7 3 462 12 12 12 10 10 10 8 8 4 618 14 14 12 12 12 10 10 10 MODEL BCG380T1806_ BCG3100T1996_ BCG380T1996_ A BCG3100T2006_ Input 180 000 199 000 Btuh Total Vent Height Feet Draft Hood 6 6 8 10 15 20 30 50 100 Input Btu...

Page 11: ...BCG365T3008_ Input 305 000 Btuh Total Vent Height Feet Draft Hood 8 6 8 10 15 20 30 50 100 Input Btuh Rise Vent Connector Diameter in inches 315 000 1 Ft 10 10 10 10 10 10 305 000 2 Ft 10 10 10 10 10 10 8 8 365 000 3 Ft 10 10 10 10 10 8 8 8 Number of Combined Input Heaters in Thousands of Btuh Manifold Common Vent Diameter 2 610 14 14 12 12 12 10 10 10 3 915 16 16 16 14 14 12 12 12 4 1220 18 18 16...

Page 12: ... THE WATER HEATER THE RELIEF VALVE S MUST NOT BE REMOVED OR PLUGGED ASME ratings cover pressure relief capacities ANSI ratings cover release rate with temperature actuation In addition to the appliance relief valve each remote storage tank which may be used in conjunction with this appliance shall also be installed with a properly sized rated and approved combination temperature ANSI and pressure ...

Page 13: ...IMPROPER OPERATION FIRE OR EXPLOSION IF COPPER SUPPLY LINES ARE USED THEY MUST BE INTERNALLY TINNED AND CERTIFIED FOR GAS SERVICE BEFOREATTACHING THE GAS LINE BE SURE THATALL GAS PIPE IS CLEAN ON THE INSIDE TO TRAP ANY DIRT OR FOREIGN MATERIAL IN THE GAS SUPPLY LINE A DIRT LEG SOMETIMES CALLED SEDIMENT TRAP OR DRIP LEG MUST BE INCORPORATED IN THE PIPING SEE FIG 11 THE DIRT LEG MUST BE FIGURE 12 RE...

Page 14: ...OSE DISCONNECT THE HEATER AND ITS MANUAL GAS SHUT OFF VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY SUPPLY PRESSURE TESTING EXCEEDING 1 2 PSIG 3 5 kPa GAS SUPPLY LINE MUST BE CAPPED WHEN DISCONNECTED FROM THE HEATER FOR TEST PRESSURES OF 1 2 PSIG 3 5 kPa OR LESS THE APPLIANCE NEED NOT BE DISCONNECTED BUT MUST BE ISOLATED FROM THE SUPPLY PRESSURE TEST BY CLOSING THE MANUAL GAS Shut off VALVE G...

Page 15: ...HOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROLWARNING ON PAGE 25 IF HIGHER PREHEATTEMPERATURESARE NECESSARYTO OBTAINADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES HORIZONTAL STORAGE TANK AND FORCED CIRCULATION ...

Page 16: ...E CLOSED ON DURING THERINSEOPERATIONANDOPEN OFF WHENDISHWASHER IS NOT OPERATING OR WHEN ON LONG STANDBY NOTE 2 INSTALL LINE TEMPERATURE CONTROL IN AN UNINSULATED TEE BEYOND THE DISHWASHING MACHINE TAKEOFF IN THE SANITIZING LOOP CONTROL SHOULD BE SET AT 185 F 85 C NOTE 3 ADJUST PLUG COCK SO THE SANITIZING LOOP FLOW RATE DOES NOT CAUSE UNNECESSARY TURBULENCE IN THE TANK TEMPERED WATER LOOP IF USED C...

Page 17: ... in the installation diagrams on the following pages are typical TWO TEMPERATURE TWO HEATERS ONE PRE HEATER ONE BOOSTER HEATER WITH OR WITHOUT BUILDING RECIRCULATION The discharge opening of the temperature and pressure relief valve must be piped to an open drain and should not be subject to freezing conditions DO NOT REDUCE BLOCK OR PLUG THE DISCHARGE OPENING OF THE VALVE CIRCULATING RETURN LINE ...

Page 18: ...TE 3 ADJUST PLUG COCK SO THE SANITIZING LOOP FLOW RATE DOES NOT CAUSE UNNECESSARY TURBULENCE IN THE TANK PIPE RELIEF VALVE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH LOCAL CODES CIRCULATING RETURN LINE CONNECTIONS TEMPERED WATER LOOP IF USED CONNECT TO POINT R STOREDTEMPERATUREWATERLOOP IFUSED CONNECT TO COLD WATER INLET CAUTION IF BUILDING COLD WATER SUPPLY HAS A BACKFLOW PREVENTER CHECK VALVE OR W...

Page 19: ... WITH MIXING VALVE TWO PRE HEATERS WITH BOOSTER HEATER DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 25 IF HIGHER PREHEAT TEMPERATURESARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES INSET A ...

Page 20: ...R OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES PIPE RELIEF VALVE TO OPEN DRAIN WHEN USING AN AMERICAN T 140 200 350 OR 400 STORAGE TANK USE LOWER 3 4 OPENING FOR TANK TEMPERATURE CONTROL IF BUILDING CIRCULATING LOOP IS USED CONNECT TO AN OPENING NEAR THE BOTTOM OF THE TANK CAUTION IF BUILDING COLD WATER SUPPLY HAS A BACKFLOW PREVENTER CHECK VALVE OR WATER METER WITH CHECK VALV...

Page 21: ...URAL PROPANE 1050 2500 21 1 SEC 50 3 SEC 199 000 NATURAL PROPANE 1050 2500 19 0 SEC 47 4 SEC 250 000 NATURAL PROPANE 1050 2500 15 1 SEC 35 3 SEC 251 000 NATURAL PROPANE 1050 2500 15 06 SEC 35 1 SEC 275 000 NATURAL PROPANE 1050 2500 13 75 SEC 32 2 SEC 305 000 NATURAL PROPANE 1050 2500 12 4 SEC 29 5 SEC 365 000 NATURAL PROPANE 1050 2500 10 4 SEC 24 7 SEC 390 000 NATURAL PROPANE 1050 2500 9 5 SEC 22 ...

Page 22: ...OAVOIDRISKOF FIRE OR EXPLOSION PURGE DISCHARGE MUST NOT ENTER CONFINEDAREAS OR SPACES WHERE IGNITION CAN OCCUR THEAREAMUSTBE WELLVENTILATEDANDALLSOURCES OF IGNITION MUST BE INACTIVATED OR REMOVED WARNING THE GAS VALVE MUST HAVE BEEN IN THE OFF POSITION FOR AT LEAST 5 MINUTES This waiting period is an important safety step Its purpose is to permit gas that may have accumulated in the combustion cha...

Page 23: ...23 FOR NATURAL GAS MODELS FOR YOUR SAFETY READ BEFORE OPERATING OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING ...

Page 24: ...24 FOR PROPANE GAS MODELS FOR YOUR SAFETY READ BEFORE OPERATING OPERATING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCE ...

Page 25: ...mbing authority The water temperature is controlled by a thermostat Fig 3 which has two sensing elements One sensor is located near the top of the tank and the other is near the center The thermostat is set in the lowest position before the heater leaves the factory The thermostat temperature dial Fig 3 is accessible by removing the control cover The dial is adjustable and may be set for 120 F 49 ...

Page 26: ... MAINTENANCE CHECK THE PILOT At least once a year check the pilot burner fig 15 and the main burner fig 16 for proper operation Refer to the following pilot and main burner sections PILOT BURNER For access to pilot unfasten two screws to burner cover and remove Locate the burner with pilot and remove screw holding burner to manifold Unfasten pilot tubing from valve and slide out burner and pilot S...

Page 27: ... a pressure gauge or a manometer to the gauge port and refer to Table 5 for correct manifold pressure 2 Use this formula to clock the meter Be sure that other gas consuming appliances are not operating during this interval 3600 X H Btuh T T Time in seconds to burn one cubic foot of gas H Btu s per cubic foot of gas Btuh Actual heater input Example Using BTRC 199 heater T 15 8 seconds H 1050 Btu Bt...

Page 28: ...he heater and replacement of the factory installed magnesium anodes with aluminum anodes may correct the condition Occasionally water softener companies recommend removal of heater anodes for odor reasons CAUTION Unauthorized removal of the anode s will void the warranty For further information contact your dealer ANODE ROD INSPECTION The heater tank is equipped with anode rods to provide corrosio...

Page 29: ... that main manual gas shut off valve is fully open and that gas service has not been interrupted Check that after following the appliance OPERATING INSTRUCTIONS the Top Knob of the appliance gas valve is in ON position Check electrical supply to the appliance for possible blown or tripped fusing or power interruption Is the water temperature in tank below the thermostat dial setting on the applian...

Page 30: ...s 4 Blown fuse or circuit breaker 5 Disconnect switch off 6 Harness not plugged into appliance receptacle A FLUE DAMPER OPEN OR OPENING Unit is calling for heat and damper disc should be in vertical position VOLTAGE ACROSS 4 1 All Times that High Limit is closed 4 2 Calling for Heat Open or Opening 4 3 During Combustion Damper Open B FLUE DAMPER CLOSED Unit is not calling for heat and damper disc ...

Page 31: ...slower Call service agent Check gas input If incorrect adjust gas pressure or replace main burner orifice Draft hood not installed or Call service agent Install draft hood or baffles as one or more flue baffles furnished with unit Water temperature too hot Thermostat set too high Set thermostat to a lower setting Heater makes sounds sizzling Condensation on outside of tank normal Rumbling Sediment...

Page 32: ...tive 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 SERVICE AND REPAIR EXPENSES Under the limited warranty the warrantor will provide only a replacement water heater or part thereof The owner is responsible for all other costs Such costs may include but are not limited to ...

Page 33: ...33 NOTES ...

Page 34: ...34 NOTES ...

Page 35: ...35 NOTES ...

Page 36: ...36 P O Box 1597 500 Princeton Road Johnson City TN 37605 ...

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