Crown Boiler BWC Series installation instructions Ladder Diagram

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Figure 9.2: Ladder Diagram

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Contents BWC Series Page VII Product Description II SpeciﬁcationsIII Before Installing IV Locating the BoilerMinimum Clearance To Combustible Material Air for Ventilation Page VI Venting Vent System DesignHorizontal Direct Venting Vent Options 1,2 2a Summary of Horizontal Venting Options 3c Positioning Vent Terminal Under Overhangs Vertical Direct Vent System Vent Options 6 2b Summary of Vertical Venting Options VENT/ AIR Intake Fitting Equivalent Length Vent / Intake System Assembly Removing an Existing Boiler From a Common Chimney7a STAR-34 Connection to Vent Collar Z-VENT III Connection to Vent Collar SAF-T Vent Ezseal Connection to Vent Collar 10 Fasnseal Connection to Vent Collar 11 Condensate Piping Arrangement VII Gas Piping Gas Connection To BoilerSystem Design General System Piping PrecautionsViii System Piping Method 1 Primary/Secondary Piping Boiler in Secondary Loop Piping Method #1 Heat Only 4a Piping Method #1 Secondary Loop Piping Shaded Pipe and Circulator Sizing for Boiler Loop Fitting Equivalent Lengths Method 2 Primary/Secondary Piping Boiler in Primary Loop Piping Method #2 Heat Only 10a Piping Method #2 Secondary Loop Piping Bolded Page Flow GPM Piping for Special Situations 14 Chiller Piping IX Wiring Wiring Connections Diagram Ladder Diagram Page Start-up and Checkout For Your Safety Read Before Lighting BWC Series Lighting and Operating InstructionsBWC Burner Gas Valve Detail Typical CO2/O2 Combustion ReadingsPage Normal Display In Standby Mode XI OperationPage 170 Boiler Status First Digit Boiler StatusOutdoor Reset Curve XII. Service and Maintenance ContinuouslyPage XIII. Troubleshooting No Error Code DisplayedSoft Lockout Codes Displayed Code Condition Possible CausesHard Lockout Codes Displayed XIV Parts BWC Replacement Parts List TBD Page Page Page Page Ignition Electrode Gasket, 5mm 240011 Page BWC Replacement Parts List Page Page Page Page Page PN 980040 BWC 08/05