INDOOR MODEL Flow Modulated with Standing pilot330 PNWarning: If the information in this manual is not followed exactly, a fire or explosion may resul
6 720 644 951 (2014/11) 330 PN10 | Installation instructionsFig. 4 Minimum clearances4 Installation instructions4.1 IntroductionPlease follow these
6 720 644 951 (2014/11)330 PNInstallation instructions | 114.3 Heater placement and clearancesThe 330 PN is design certified for installation on a com
6 720 644 951 (2014/11) 330 PN12 | Installation instructionsFig. 7 Support board[1] Wall studs[2] Support board[3] 1”x4” Space boardFig. 8 Secure
6 720 644 951 (2014/11)330 PNInstallation instructions | 134.6 Venting ▶ Minimum vent pipe diameter: 4 inches▶ Minimum vertical vent height: 6 feet, w
6 720 644 951 (2014/11) 330 PN14 | Installation instructionspipe (metal double wall Type B), or an approved clay flue liner or a listed chimney lining
6 720 644 951 (2014/11)330 PNInstallation instructions | 15Fig. 11 Masonry chimney[1] Listed vent cap[2] Vent connector[3] Establish a one foot rise
6 720 644 951 (2014/11) 330 PN16 | Installation instructionsWhen connections are made, check for gas leaks at all joints. Apply some gas leak detectio
6 720 644 951 (2014/11)330 PNInstallation instructions | 17GAS LINE SIZINGThe gas supply piping should be sized according to the applicable code for a
6 720 644 951 (2014/11) 330 PN18 | Installation instructions* EHD = Equivalent Hydraulic Diameter. The greater the value EHD, the greater the gas capa
6 720 644 951 (2014/11)330 PNInstallation instructions | 194.8 Measuring gas pressureConnecting manometer▶ Shut off gas.▶ Remove front cover and locat
6 720 644 951 (2014/11) 330 PN2 | IndexIndex1 Key to symbols and safety instructions . . . . . . . . . . . . 31.1 Key to symbols . . . . . . . . .
6 720 644 951 (2014/11) 330 PN20 | Operation instructionsFig. 14 Plumbing connections and pressure relief valve shown with optional Webstone service
6 720 644 951 (2014/11)330 PNOperation instructions | 21appliance and to replace any part of the control system and any gas control which has been und
6 720 644 951 (2014/11) 330 PN22 | Operation instructions5.3 To turn off appliance▶ Slide the gas valve button all the way to the left and turn off th
6 720 644 951 (2014/11)330 PNMaintenance and service | 235.5 Draining water from heaterIf there is a risk of freezing, proceed as follows:▶ Remove the
6 720 644 951 (2014/11) 330 PN24 | Maintenance and serviceCleaning pilot assemblyShut off gas supply to the heater using installer supplied manual gas
6 720 644 951 (2014/11)330 PNTroubleshooting | 25Fig. 25 7 Troubleshooting7.1 IntroductionMany of the questions customers ask regarding operation of
6 720 644 951 (2014/11) 330 PN26 | Troubleshootingproper draft.4. Confirm that the burners in the water heater go off immediately when the hot water i
6 720 644 951 (2014/11)330 PNTroubleshooting | 27of a temperature balance shower valve, refer to shower valve manufacturer's instructions for int
6 720 644 951 (2014/11) 330 PN28 | Protecting the environment5. If the water has a high mineral content, the heat exchanger may be scaled internally.
6 720 644 951 (2014/11)330 PNInterior components and diagram parts list | 299 Interior components and diagram parts list9.1 Interior componentsFig. 26
6 720 644 951 (2014/11)330 PNKey to symbols and safety instructions | 31 Key to symbols and safety instructions1.1 Key to symbolsWarningsThe following
6 720 644 951 (2014/11) 330 PN30 | Interior components and diagram parts list9.2 Components diagramFig. 27 Components Diagram
6 720 644 951 (2014/11)330 PNInterior components and diagram parts list | 319.3 Parts listItem Description Reference1 Front cover 8 738 708 4952 Shiel
6 720 644 951 (2014/11) 330 PN32 | LIFETIME LIMITED WARRANTY FOR BOSCH TANKLESS WATER HEATERS10 LIFETIME LIMITED WARRANTY FOR BOSCH TANKLESS WATER HEA
6 720 644 951 (2014/11)330 PNLIFETIME LIMITED WARRANTY FOR BOSCH TANKLESS WATER HEATERS | 33LIMITED WARRANTY. BTC SHALL NOT BE LIABLE FOR ANY INDIRE
6 720 644 951 (2014/11) 330 PN34 | Installer Checklist to be completed by installer upon installation11 Installer Checklist to be completed by install
6 720 644 951 (2014/11)330 PN | 35Notes
6 720 644 951 (2014/11) 330 PN4 | Key to symbols and safety instructionsDanger from escaping flue gases▶ Ensure all vent pipes and chimneys are not da
6 720 644 951 (2014/11)330 PNKey to symbols and safety instructions | 5Flooding▶ After a flood, do not use the appliance if any part has been submerge
6 720 644 951 (2014/11) 330 PN6 | Warning2 WarningWARNING: Fire danger!▶ Keep appliance area clear and free from combustible materials, gasoline and o
6 720 644 951 (2014/11)330 PNAppliance details | 7Fig. 1 3 Appliance details3.1 330 PN specifications (Technical data)Approved in US/Canada Accessori
6 720 644 951 (2014/11) 330 PN8 | Appliance details3.2 Unpacking the 330 PN heaterThis heater is packed securely.Before installing the unit, be certai
6 720 644 951 (2014/11)330 PNAppliance details | 93.4 Dimensions and installation clearancesFig. 3 Dimensions in Inches and (mm)[4] Heat exchanger[5
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