Table Of Contents - Navien NCB500-1.5S/37K Installation & Operation Manual

Contents
1. Safety Information
2. About the Boiler
2.1 Items Included
2.2 Accessories
2.3 Technical Data
2.4 Components
2.5 Dimensions
2.6 Operating Modes
2.7 Installation Procedure
3. Installing the Boiler
3.1 Choosing an Installation Location
3.2 Mounting the Boiler to the Wall
4. Installing the System Piping
4.1 Installing a Central Heating System
4.2 Installing a Domestic Hot Water (DHW) System
4.3 Connecting the Condensate Drain Line
4.4 Pipe Dimensions and Water Pressure
4.5 Pressure Relief Valve
4.6 Filling the System
4.7 Testing the Water System
5. Connecting the Gas Supply
5.1 Gas Pipe Material
5.2 Propane Gas Installations (LPG)
5.3 Measuring the Inlet Gas Pressure
6. Flue System
6.1 Flue Terminal Positions
6.2 Flue Installation
6.3 Measuring Flue Length
6.4 Terminating the Flue
7. Setting the DIP Switches
7.1 PCB DIP Switches
7.2 Front Panel DIP Switches
2 Contents
3 8. Connecting Electrical Supplies
8.1 Accessing the Terminal Strips
7
8.2 Connecting the Power Supply Cables
8.3 Connecting the Switched Live
7
8.4 Connecting the Room Stat or OpenTherm
7
8.5 Connecting the Outdoor Temperature Sensor
8
8.6 OpenTherm® Protocol
11
8.7 Connecting the Navien Smart Room Controller
13
(Optional)
14
16
9. Installation Check list
17
10. Operating the Boiler
17
10.1 Using the Front Panel
19
10.2 Turning the Boiler On or Off
10.3 Start-Up Wizard
20
10.4 Adjusting the Temperature
20
10.5 Resetting the Boiler
21
10.6 Accessing Basic Menu Items
21
10.7 Accessing Advanced Menu Items
22
10.8 Error Codes
23
23
11. Maintaining the Boiler
23
11.1 Cleaning the Boiler
11.2 Draining the Boiler
24
11.3 Cleaning the Return Adapter Filter
25
11.4 Protecting the Boiler from Freezing
25
11.5 Maintenance Schedules
25
12. Appendices
27
12.1 Gas Conversion
27
12.2 Cleaning the Heat Exchanger
28
12.3 Wiring Diagram
30
12.4 Ladder Diagram
30
12.5 Outdoor Temperature Sensor (Optional)
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