Rinnai RSC199i Installation And Operation Manual page 4

5.6 Diagnostic Codes ..................................................................................................................72
5.7 Configuring Recirculation .....................................................................................................75
6. Maintenance .................................................................................................................................. 81
6.1 Maintenance ......................................................................................................................... 81
6.2 Cleaning and Inspecting the Air Filter (Indoor Units Only) .................................................... 83
6.3 Flushing the Heat Exchanger ............................................................................................... 85
6.4 Draining the Water Heater .................................................................................................... 86
7. Appendices ................................................................................................................................... 87
7.1 Massachusetts State Gas Regulations ................................................................................. 87
7.2 Wiring Diagram ..................................................................................................................... 89
7.3 Ladder Diagram .................................................................................................................... 90
7.4 Pressure Drop and Water Flow Curves ................................................................................ 91
7.5 Pressure Drop Curve (Water Heater + Pump) ...................................................................... 92
7.6 Guidelines for Additional Temperature Controllers ............................................................... 93
8. Warranty ........................................................................................................................................ 94
4 Rinnai Tankless Water Heater Installation and Operation Manual