Crown Boiler
BWC Series
installation instructions
Troubleshooting
Install
Parts list
Wiring Connections Diagram
IX Wiring
Maintenance
Outdoor Reset Curve
Vent / Intake System Assembly
Normal Display In Standby Mode
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Figure 9.3: Wiring of Isolation Relay for Control of Two Heating Circulators
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Contents
BWC Series
Page
VII
II Specifications
Product Description
IV Locating the Boiler
III Before Installing
Minimum Clearance To Combustible Material
Air for Ventilation
Page
Vent System Design
VI Venting
Horizontal 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
Removing an Existing Boiler From a Common Chimney
Vent / Intake System Assembly
7a 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
Gas Connection To Boiler
VII Gas Piping
General System Piping Precautions
Viii System Piping
System Design
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
BWC Series Lighting and Operating Instructions
For Your Safety Read Before Lighting
BWC Burner
Typical CO2/O2 Combustion Readings
Gas Valve Detail
Page
XI Operation
Normal Display In Standby Mode
Page
170
First Digit Boiler Status
Boiler Status
Outdoor Reset Curve
Continuously
XII. Service and Maintenance
Page
No Error Code Displayed
XIII. Troubleshooting
Code Condition Possible Causes
Soft Lockout Codes Displayed
Hard Lockout Codes Displayed
XIV Parts
BWC Replacement Parts List
TBD
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Ignition Electrode Gasket, 5mm 240011
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BWC Replacement Parts List
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PN 980040 BWC 08/05
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Contents