4
TABLE OF CONTENTS
I.
Product Description, Specifications and Dimensional Data......................
5
II.
Unpacking Boiler........................................................................................ 8
III. Pre-Installation and Boiler Mounting.......................................................... 9
IV. Venting...................................................................................................... 13
A. General Guidelines............................................................................... 13
B. CPVC/PVC Venting.............................................................................. 18
C. Polypropylene Venting......................................................................... 24
D. Stainless Steel Venting........................................................................ 27
E. Removing the Existing Boiler...............................................................
30
F. Multiple Boiler Installation Venting....................................................... 31
V.
Condensate Disposal................................................................................. 33
VI. Water Piping and Trim............................................................................... 35
VII. Gas Piping ............................................................................................... 47
VIII. Electrical ................................................................................................... 51
IX. System Start-Up ....................................................................................... 62
X. Operation...................................................................................................... 70
A. Overview.............................................................................................. 70
B. Supply Water Temperature Regulation................................................ 71
C. Boiler Protection Features.................................................................... 72
D. Multiple Boiler Control Sequencer........................................................ 73
E. Boiler Sequence of Operation.............................................................. 74
1. Normal Operation........................................................................... 74
2. Using the Display............................................................................
75
3. Status Screens............................................................................... 76
4. Detail Screens................................................................................ 78
5. Multiple Boiler Sequencer Screens................................................ 79
F. Changing Adjustable Parameters........................................................
80
1. Entering Adjust Mode.................................................................... 80
2. Adjusting Parameters.................................................................... 81
XI. Service and Maintenance ........................................................................ 97
XII.
Troubleshooting........................................................................................
103
XIII. Repair Parts ............................................................................................. 108
Summary of Contents for PHNTM399
Page 53: ...53 VIII Electrical continued Figure 26 Ladder Diagram...
Page 54: ...54 VIII Electrical continued...
Page 55: ...55 Figure 27 Wiring Connections Diagram VIII Electrical continued...
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Page 114: ...114 XIII Repair Parts continued PHNTM399 and PHNTM500...
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