Navien NPN, Installation & Operation Manual

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2 Contents
6. Appendixes 55
6.1 Covering the Clamps with Front Cover
Cap 55
6.2 Technical Data 56
6.3 Wiring Diagram 57
6.4 Ladder Diagram 58
6.5 Component Assembly Diagrams and
Parts Lists 59
6.6 Installation Check list 70
6.7 Navien H2Air Add-on Controller Kit
(Optional) 72
6.8 Navien HotButton Kit (Optional) 73
6.9 Requirements for the State of
Massachusetts 74
1. Safety Information 3
2. About the Water Heater 6
2.1 Items Included 6
2.2 Accessories 6
2.3 Specifications 7
2.4 The Front Panel 8
2.5 Components 9
2.6 Dimensions 11
2.7 Rating Plate 13
3. Installing the Water Heater 14
3.1 Choosing an Installation Location 14
3.2 Mounting the Water Heater to the Wall 18
3.3 Connecting the Gas Supply 19
3.4 Connecting the Water Supply 25
3.5 Venting the Water Heater (Indoor Models
Only) 31
3.6 Connecting the Power Supply 42
3.7 Setting the DIP Switches 44
4. Configuring the Remote Controller
System 46
4.1 Included Items 46
4.2 Connecting the Extension Cable 46
4.3 Attaching the Wall Mounting Bracket 46
4.4 Remote Controller 47
4.5 Multi Remote Controller System 48
4.6 Entering Lock Mode 50
4.7 Setting the clock 50
4.8 Setting the Recirculation timer 51
4.9 Starting Recirculation 52
4.10 Canceling all timer settings 52
5. Installing a Cascade System 53
5.1 Connecting Water Supplies 53
5.2 Connecting the Communication Cables 54
Contents