Crown Boiler BWC151 manual Iii

	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

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