Navien NFC-200 User Manual

3Contents
Contents
Safety Information 4
1. About the Boiler
7
1.1 Included Items 7
1.2 Accessories
7
1.3 Specifications
8
1.4 Components
11
1.5 Dimensions
13
1.6 Rating Plate
14
2. Installing the Boiler 15
2.1 Removing the Wood Pallet from the boiler 15
2.2 Choosing an Installation Location
16
2.3 Mounting the Boiler to the Wall
18
3. Installing the System Piping 19
3.1 Installing a Space Heating System 19
3.2 Installing a Domestic Hot Water (DHW) System
23
3.3 Connecting the Condensate Drain
25
3.4 Filling the System
28
3.5 Testing the Water System
29
3.6 Considerations for System Applications
30
3.7 Examples of Electrical Connections
38
4. Connecting the Gas Supply 47
4.1 Gas Pipe Sizing Tables 49
4.2 Measuring the Inlet Gas Pressure
50
5. Venting the Boiler 52
5.1 Selecting a Vent Type 53
5.2 Selecting Vent Pipe Materials
56
5.3 Measuring Vent Length
57
5.4 Terminating the Vent
57
6. Setting the DIP Switches 60
6.1 DIP Switch 1 (6 switch unit) 60
6.2 Dip Switch 2 (8 switch unit)
60
7. Connecting the Power Supply 62
8. Installing a Cascade System
63
8.1 Connecting Water Supplies 63
8.2 Cascade System - Recirculation System Application
Example
65
8.3 Connecting the Communication Cables
67
9. Installing a Common Vent System 69
9.1 About the Common Vent System 69
9.2 Navien Backflow Damper (Back-draft Damper)
74
9.3 Starting the Common Vent System
75
9.4 Connecting and Terminating the Vent Pipe
77
9.5 Setting Up the Common Vent System
78
9.6 Common Vent Termination Clearances
78
9.7 Installing a Condensate Drain
80
9.8 Exhaust Vent Termination Clearances (For Direct Vent)
81
9.9 Maintenance
82
10. Installation Checklist 83
11. Operating the Boiler
86
11.1 Turning the Boiler On or Off 86
11.2 Adjusting the Temperature
86
11.3 Accessing Basic Menu Items
88
11.4 Accessing Advanced Menu Items
94
11.5 Understanding Error Codes
101
12. Appendixes 103
12.1 Gas & High Altitude Conversion 103
12.2 Wiring Diagram
110
12.3 Ladder Diagram
111
12.4 Outdoor Temperature Sensor
112
12.5 Outdoor Reset Control
113
12.6 Component Assembly Diagrams and Parts Lists
114

Navien NFC-200 Specifications

General

Brand	Navien
Model	NFC-200
Category	Boiler
Language	English