Navien NCB-20LHWE Manuals

Manuals and User Guides for Navien NCB-20LHWE. We have 1 Navien NCB-20LHWE manual available for free PDF download: Installation & Operation Manual

Navien NCB-20LHWE Installation & Operation Manual

Navien NCB-20LHWE Installation & Operation Manual (80 pages)

Condensing System Boiler

Brand: Navien | Category: Boiler | Size: 26.01 MB

Table of Contents

Table of Contents
2
Setting the DIP Switches and Parameters for the Terminal Blocks 1 and
2
1 Safety Information

3
2 About the Boiler

7
- Items Included
  7
- Accessories
  7
- Technical Data
  8
- Components
  11
- Dimensions
  15
- Operating Modes
  16
- Installation Procedure
  17
3 Installing the Boiler

18
- Choosing an Installation Location
  18
- Mounting the Boiler to the Wall
  20
4 Installing the System Piping

21
5 Connecting the Gas Supply

25
6 Flue System

28
- Flue Terminal Positions
  28
- Selecting a Flue System
  29
- Coaxial Systems
  30
- Dual Duct Systems
  31
- Measuring Flue Length
  33
- Terminating the Flue
  33
7 Setting the DIP Switches

34
- PCB DIP Switches
  34
- Front Panel DIP Switches
  34
8 Connecting Electrical Supplies

35
9 Wiring Examples for DI Erent Applications

39
10 Installation Check List

44
11 Operating the Boiler

45
- Turning the Boiler on or O
  45
- Adjusting the Temperature
  45
- Viewing Basic Information
  46
- Setting the Operation Mode
  47
- Setting the Parameters
  48
- Resetting the Boiler
  55
12 Maintaining the Boiler

56
- Cleaning the Boiler
  56
- Draining the Boiler
  56
- Cleaning the Return Adapter Filter
  57
- Protecting the Boiler from Freezing
  57
- Maintenance Schedules
  58
13 Appendices

61
- Gas Conversion
  61
- Cleaning the Heat Exchanger
  67
- Wiring Diagram
  70
- Ladder Diagram
  71
- Outdoor Temperature Sensor (Optional)
  72

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