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Table of Contents
I. Product Description 2
II. Specifications 2
III. Before Installing 3
IV. Locating The Boiler 3
V. Mounting The Boiler 6
VI. Air For Ventilation 9
VII. Venting 11
A. Vent System Design 11
B. Removing An Existing Boiler From Common Chimney 21
C. Assembly of Crown 60/100mm Concentric Venting 22
D. Assembly of Crown 80/125mm Concentric Venting 26
E. Assembly of Stainless Steel Venting 35
F. Condensate Trap and Drain 40
VIII. Gas Piping 42
IX. System Piping 43
General System Piping Precaution 43
System Design 43
Standard Piping Installation Requirements 50
Piping For Special Situations 51
X. Wiring 53
XI. Start-up and Checkout 57
XII. Operation 63
XIII. Service and Maintenance 68
XIV. Troubleshooting 70
XV. Parts 73
Appendix A: Optional Method for Retrofitting BWC Boilers 85
into Existing Circulator Zone Systems
Appendix B: Special Requirements For Side-Wall 87
Vented Appliances In The Commonwealth
of Massachusetts
1
40
42
43
43
43
50
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1
53
57
63
68
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