MODEL 2400E NG and 2400E LP - INDOOR MODELTemperature Modulated with Electronic IgnitionSuitable for heating potable water onlyNot approved for space
6 720 608 26310Installation instructionsFuel Gas Code. Consult a HVAC specialist if your air infiltration rate is questionable.The space must have two
6 720 608 263Installation instructions113.6 Venting 3.6.1 Vent material and specificationsEstablish vent clearances that comply with the vent manufact
6 720 608 26312Installation instructionsmay result in a hazardous condition. For specific questions concerning vent material, specifications, usage o
6 720 608 263Installation instructions133.6.3 Condensate drain tube requirementsExhaust collar condensate drain installation (supplied with heater)B T
6 720 608 26314Installation instructionsa 3" or 4" pipe from the outside. See Chapter 3.5 for more direction on combustion air.B To reduce p
6 720 608 263Installation instructions15The masonry chimney may have to be tile or metal lined before the insertion of the gas vent pipe; check local
6 720 608 26316Installation instructions1. Detailed instructions for the installation of the vent-ing system or the venting system components: and2. A
6 720 608 263Installation instructions17Recommended exhaust vent terminator clearancesFig. 17* Subject to local codes and anticipated snow level** Oth
6 720 608 26318Installation instructions3.6.7 Exhaust vent configuration examplesSupporting the exhaust vent systemFig. 18 Horizontal side wall ventin
6 720 608 263Installation instructions193.7 Gas piping & connections Before connecting the gas supply, check the ratingplate on the right side of
6 720 608 2632IndexIndex2 gninraW14 sliated ecnailppA24 serutaeF1.24 )atad lacinhceT( snoitacificepS E 00422.25 retaeh E 0042 eht gnikcapnU3.26 noitar
6 720 608 26320Installation instructionsFOR NATURAL GASMaximum Capacity of pipe in Cubic Feet of Gas per Hour for Gas Pressure of 0.5 Psig or less and
6 720 608 263Installation instructions213.8 Measuring gas pressureConfirm proper gas pressure upon installation.Connecting ManometerB Shut off gas sup
6 720 608 26322Installation instructions3.9 Water connections B When facing the heater, the ¾” cold inlet connection is on the bottom right and the ho
6 720 608 263Installation instructions233.10 Electrical connectionsThe 2400 E requires an electrical power supply from a120VAC / 60Hz circuit (wit
6 720 608 26324Operation instructions4 Operation instructionsFig. 281 On/Off switch2 Reset button3 Program “ “ button4 Increasing temperature selector
6 720 608 263Operation instructions25OffB To shut down the appliance move the on/off switch to the “off” position (0).4.3 Temperature selectionTo sele
6 720 608 26326Operation instructionsSetting the water temperatureThe desired temperature of the hot water can be adjusted on the front control panel
6 720 608 263Operation instructions274.4 Use of optional remote control accessoryFig. 32 Remote controlThe wireless remote control accessory and thete
6 720 608 26328Maintenance and service5 Maintenance and serviceThe unit should be checked once a year by a gastechnician. If repairs are needed, the r
6 720 608 263Maintenance and service295.3 Mineral scale build-upPeriodic descaling may be necessary in areas with highmineral content in the water. Sc
6 720 608 263Warning3FCC:This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may
6 720 608 26330Maintenance and servicepipe (approx 1.5" inserted). Avoid air gaps betweenprobe and measuring port as it can alter readings.Fig. 4
6 720 608 263Maintenance and service31Fig. 43 Adjusting P2 CO2 level3. Verify both P1 and P2 CO2 readings are within the ranges specified in table 10.
6 720 608 26332Maintenance and service5.5 Control board diagnostics1. Turn on/off switch on water heater to off (O) position.2. Press and hold the pro
6 720 608 263Troubleshooting336Troubleshooting6.1 IntroductionMany of the questions customers ask regardingoperation of this unit can be answered by f
6 720 608 26334Troubleshooting7. Cold water is mixing into the hot water lines (plumbing crossover). A plumbing crossover can unintentionally mix cold
6 720 608 263Troubleshooting352. Improper venting. Venting that is unsealed, the wrongmaterial, too big in diameter or too long in run willresult in u
6 720 608 26336Troubleshooting6.8 Error code diagnosticsPart numbers subject to change.Display Cause SolutionA2 Fault in the flue gas limiter (part# 8
6 720 608 263Troubleshooting37C1 Fan rotation too low on startup.(part# 8707204039)1. Disconnect power supply cord. Check wire connections on back sid
6 720 608 26338TroubleshootingE1 Over-temperature detected by temperature sensor on hot water pipe.(part# 8700400015)1. This water heater must be supp
6 720 608 263Troubleshooting39EA No flame ionization detected with water flow.(part# 8708107020)1. Verify that all manual gas shut off valves are open
6 720 608 2634Appliance details2 Appliance details2.1 FeaturesParts• Touch pad interface control• High power pre-mix compact burner with low NOx
6 720 608 26340TroubleshootingF7 Ionization error at standby.(part# 8708107020)1. Loose connection to the flame ionization rod. Verify that the thinne
6 720 608 263Electrical diagram417 Electrical diagramFig. 44 Electrical scheme1 Intlet water temperature sensor2 Ionization sensor3 Water flow sensor4
6 720 608 263422400 E Functional scheme8 2400 E Functional schemeFig. 45 Functional scheme
6 720 608 263Interior components diagram and parts list439 Interior components diagram and parts list9.1 Interior componentsFig. 46 Components1 Cover2
6 720 608 26344Interior components diagram and parts list9.2 Components diagramFig. 48 Components Diagram
6 720 608 263Interior components diagram and parts list459.3 Parts listItem Description Reference1 Front cover 8 705 421 8372 Shield 8 705 506 6613 He
6 720 608 26346Protecting the environment10 Protecting the environment PackingThe packing box may be fully recycled as confirmed bythe recycling symbo
6 720 608 263Twelve Year Limited Warranty4711 Twelve Year Limited WarrantyGeneralAquastar water heaters are warranted by theManufacturer (BOSCH) throu
Recycled paper © 2007 BBT NORTH AMERICA,Waitsfield, VT all rights reservedReplacement Parts available from:BBT Termotecnologia Portugal S.A.Estrada de
6 720 608 263Appliance details5•CO2 level set from factory, see chapter 5.4.Dimensions• Depth (in): 8 ½” (220 mm)• Width (in): 15 ¾” (400 mm)• Height
6 720 608 2636Appliance details2.4 General rules to follow for safeoperationB 1. You must follow these instructions when youinstall your heater. In th
6 720 608 263Appliance details72.5 Dimensions and Minimum installation clearancesFig. 4 Dimensions1 Cover2 On/Off switch3 Reset button4 LCD display5 P
6 720 608 2638Installation instructions3 Installation instructions3.1 IntroductionPlease follow these instructions. Failure to followinstructions may
6 720 608 263Installation instructions9Fig. 6 Mounting the heater3.5 Combustion air requirementsTwin pipe method:The 2400 E is designed as a sealed co
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