Table Of Contents - Rinnai Demand Duo R Series Installation And Operation Manual

1. Welcome .................................................................................................................................. 4
2. Safety ....................................................................................................................................... 5
2.1 Safety Symbols ................................................................................................................... 5
2.2 Safety Precautions .............................................................................................................. 5
3. About ........................................................................................................................................ 7
3.1 Components ....................................................................................................................... 7
3.2 Specifications ..................................................................................................................... 8
3.3 Dimensions ......................................................................................................................... 10
4. Installation ................................................................................................................................ 12
4.1 Installation Guidelines ......................................................................................................... 12
4.2 What You Will Need ............................................................................................................ 13
4.3 Choose an Installation Location .......................................................................................... 13
5. Venting ...................................................................................................................................... 16
5.1 Venting Guidelines .............................................................................................................. 16
5.2 Combustion Air Requirements ............................................................................................. 21
5.3 Venting Installation Checklist............................................................................................... 24
6. Gas and Power Supply .............................................................................................................. 25
6.1 Connect the Gas Supply ..................................................................................................... 25
6.2 Gas Operating Instructions .................................................................................................. 27
6.3 Gas Pipe Sizing Reference Tables ...................................................................................... 28
6.4 Connect Electricity .............................................................................................................. 29
6.5 System Controller ............................................................................................................... 31
6.6 Checklist for Gas and Electricity .......................................................................................... 32
7. System Plumbing ...................................................................................................................... 33
7.1 Pressure Relief Valve Requirements ................................................................................... 33
7.2 Temperature-PRV Requirements ........................................................................................ 33
7.3 Typical Installations ............................................................................................................. 34
7.4 Piping Diagram for Basic Installations ................................................................................. 35
7.5 Piping Diagram for Multiple Unit Installations ....................................................................... 36
7.6 Connect the Water Heater to the Water Supply ................................................................... 37
7.7 Plumbing Checklist ............................................................................................................. 37
8. Post-Installation Checklist .......................................................................................................... 38
9. Operation .................................................................................................................................. 39
9.1 Safety Precautions .............................................................................................................. 39
9.2 Control Panel ...................................................................................................................... 40
9.3 Basic Operation Settings ..................................................................................................... 41
10. Maintenance ............................................................................................................................ 43
10.1 Diagnostic Codes .............................................................................................................. 44
10.2 Service/Maintenance Log .................................................................................................. 47
11. Warranty ................................................................................................................................. 49
Demand Duo™ R-Series Installation and Operation Manual
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