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TABLE OF CONTENTS
I. Product Description, Specications and Dimensional Data...................... 6
II. Unpacking Boiler........................................................................................ 10
III. Pre-Installation and Boiler Mounting.......................................................... 11
IV. Venting...................................................................................................... 15
A. General Guidelines............................................................................... 15
B. CPVC/PVC Venting.............................................................................. 18
C. Polypropylene Venting......................................................................... 26
D. Stainless Steel Venting........................................................................ 30
E. Concentric Polypropylene Venting....................................................... 32
F. Removing the Existing Boiler............................................................... 38
G. Multiple Boiler Installation Venting....................................................... 40
V. Condensate Disposal................................................................................. 43
VI. Water Piping and Trim............................................................................... 45
VII. Gas Piping ............................................................................................... 59
VIII. Electrical ................................................................................................... 63
IX. System Start-Up ....................................................................................... 75
X. Operation...................................................................................................... 81
A. Overview.............................................................................................. 81
B. Supply Water Temperature Regulation................................................ 82
C. Boiler Protection Features.................................................................... 83
D. Multiple Boiler Control Sequencer........................................................ 84
E. Boiler Sequence of Operation.............................................................. 85
1. Normal Operation........................................................................... 85
2. Using the Display............................................................................ 86
F. Viewing Boiler Status.......................................................................... 87
1. Status Screens............................................................................... 87
2. Detail Screens................................................................................ 88
3. Multiple Boiler Sequencer Screens................................................ 89
G. Changing Adjustable Parameters........................................................ 90
1. Entering Adjust Mode.................................................................... 90
2. Adjusting Parameters.................................................................... 90
XI. Service and Maintenance ........................................................................ 101
XII. Troubleshooting........................................................................................ 105
XIII. Repair Parts ............................................................................................. 109
Appendix A - Figures................................................................................ 124
Appendix B - Tables.................................................................................. 127
Warranty...........................................................................................Back Page
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