A SERVICE OF

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Table of Contents
I. Product Description 2
II. Speciļ¬cations 2
III. Before Installing 3
IV. Locating The Boiler 3
V. Air For Ventilation 5
VI. Venting 7
Vent System Design 7
Removing An Existing Boiler From Common Chimney 14
Vent/Intake System Assembly 14
VII. Gas Piping 20
VIII. System Piping 21
General System Piping Precautions 21
System Design 21
Standard Piping Installation Requirements 31
Piping For Special Situations 32
IX. Wiring 34
X. Start-up and Checkout 38
XI. Operation 43
XII. Service and Maintenance 48
XIII. Troubleshooting 50
XIV. Parts 53
Appendix A Special Requirements For Side-Wall 66
Vented Appliances In The Commonwealth
of Massachusetts
1