Install Instructions

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108978-01 - 7/18
General Information ..................................................................................................................... 3
Specifications & Ratings ............................................................................................................. 4
Installation Guidelines ................................................................................................................. 5
Installation Checklist .................................................................................................................... 8
Service Information ..................................................................................................................... 9
TPI Control Diagrams (#1-3) ........................................................................................................ 11
Installation Piping Figures (#1 & 2) ............................................................................................. 14
Top Mount Coil Details & Tightening Sequence (Figure #3) ....................................................... 15
Circulator & Burner Control Wiring Diagrams ............................................................................. 16
Zone Valve Wiring Diagrams ....................................................................................................... 17
Switching Relay Wiring Diagrams ............................................................................................... 18
How To Obtain Service Assistance .............................................................................................. 20
Warranty ...................................................................................................................................... Back Cover
To fully understand the purchaser’s responsibilities for
installing the water heater, please read the warranty.
U.S. Boiler Company, Inc., – P.O. Box 3020 – Lancaster, PA 17604
www.usboiler.net
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