4
Rinnai Tankless Water Heater Installation and Operation Manual
5.5 Performance Data .................................................................................................................47
5.6 Diagnostic Codes ..................................................................................................................49
6. Maintenance ..................................................................................................................................
53
6.1 Maintenance ......................................................................................................................... 53
6.2 Flushing the Heat Exchanger ............................................................................................... 56
6.3 Draining the Water Heater .................................................................................................... 57
7. Appendices ...................................................................................................................................
58
7.1 Massachusetts State Gas Regulations ................................................................................. 58
7.2 Wiring Diagram .....................................................................................................................
60
7.3 Ladder Diagram ....................................................................................................................
61
7.4 Pressure Drop and Water Flow Curves ................................................................................
62
7.5 Guidelines for Additional Temperature Controllers ...............................................................
63
8. Warranty ........................................................................................................................................
64