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NCB-700-2S+/42K
Navien NCB-700-2S+/42K Manuals
Manuals and User Guides for Navien NCB-700-2S+/42K. We have
2
Navien NCB-700-2S+/42K manuals available for free PDF download: Service Manual, Installation & Operation Manual
Navien NCB-700-2S+/42K Service Manual (121 pages)
Condensing Combi Boiler
Brand:
Navien
| Category:
Boiler
| Size: 27 MB
Table of Contents
Table of Contents
5
Safety Information
8
Product Information
13
Components
14
Technical Data
18
General Specifications
18
Dimensions
20
System Details
21
Setting the DIP Switches
21
PCB DIP Switches
21
Front Panel DIP Switches
21
Measuring the Incoming Gas Pressure
21
Gas Conversion
23
The Front Panel
28
Icons and Digital Display
28
Buttons
29
Turning the Boiler on or off
30
Set-Up Wizard
30
Adjusting the Temperature
30
Resetting the Boiler
31
Accessing Basic Menu Items
32
Accessing Advanced Menu Items
37
Electrical Diagnostic Contacts and Wiring Diagram
42
Ladder Diagram
43
Key Component Descriptions
44
Pcb
44
High Temperature Limit Switch
45
Thermistor
46
Fan Motor
47
Flame Rod Assembly
48
Ignition Transformer
49
Aps
50
Main Gas Valve
51
Burner (to be Revised)
52
Flow Sensor (to be Revised)
53
Primary Heat Exchanger
54
Secondary Heat Exchanger
55
DHW Heat Exchanger
56
Circulation Pump
57
Way Valve
58
Water Pressure Sensor
59
Dual Venturi
60
Expansion Tank
61
Troubleshooting
62
Error Code Classification
62
Error Code List and Actions
63
Error
66
Error
74
Error
75
Error
78
Error
80
Error
81
Error
82
Error
83
Error
85
Error
87
Error
89
Error
91
Error
93
Error
94
Error
95
Error
96
Error
98
Error
100
Error
101
Error
102
Troubleshooting Guide by Symptom
103
Noise
103
Water Temperature Issue
104
Circuit Breaker Operation
105
Replacement of Parts
106
Replacement Procedure
106
Components Replacement Instructions
106
Pcb
106
Fuse
107
Fan Motor (Combustion Air)
108
Flame Rod
109
Ignition Transformer
109
Aps
110
Main Gas Valve
110
Condensate Trap
111
Circulation Pump
112
Flow Sensor
112
3-Way Valve
113
Water Pressure Sensor
113
DHW Heat Exchanger
114
Components Diagram and Part List
115
Case Assembly
115
Burner Assembly
116
Waterway Assembly
117
Inspection and Maintenance Schedule
118
Annual Servicing
118
Maintenance Report
118
Maintenance Schedules
118
Inspection Report
118
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Navien NCB-700-2S+/42K Installation & Operation Manual (100 pages)
Condensing Combi Boiler
Brand:
Navien
| Category:
Boiler
| Size: 37 MB
Table of Contents
Table of Contents
2
Safety Information
3
General Installation Guidelines
6
The Benchmark Scheme
7
Disposal of the Product
7
About the Boiler
8
Items Included
8
Accessories
8
Technical Data
9
Specific Precautions
11
Components
12
Dimensions
16
Supply Connections
16
Bottom View
16
Operating Modes
17
Installation Procedure
19
Wall Mounting
19
About the Navicirc
20
Included Items
20
Specifications
21
Installation Requirements
21
Installing the Boiler
22
Choosing an Installation Location
22
Mounting the Boiler to the Wall
24
Installing the System Piping
25
Installing a Central Heating System
25
Installing a Domestic Hot Water (DHW) System
26
Installation Diagrams for the Navicirc
27
Installing the Navicirc
30
Choosing the Installation Location
30
Connecting the Condensate Drain Line
37
Pipe Dimensions and Water Pressure
41
Pressure Relief Valve
41
Filling the System
41
Testing the Water System
42
Connecting the Gas Supply
43
Gas Pipe Material
44
Propane Gas Installations (LPG)
44
Measuring the Inlet Gas Pressure
44
Flue System
46
Flue Terminal Positions
46
Flue Installation
50
Measuring Flue Length
53
Terminating the Flue
53
Setting the DIP Switches
54
PCB DIP Switches
54
Front Panel DIP Switches
54
Connecting Electrical Supplies
55
Accessing the Terminal Strips
55
Connecting the Power Supply Cables
56
Connecting the Switched Live (230 V)
57
Connecting the Room Stat or Opentherm
57
Connecting the Outdoor Temperature Sensor
57
Opentherm® Protocol
57
Connecting the Navien Smart Room Controller (Optional)
58
Installation Check List
59
Operating the Boiler
60
Using the Front Panel
60
Menu Button
61
Down Button
61
Turning the Boiler on or off
62
Start-Up Wizard
62
Adjusting the Temperature
62
Adjusting the DHW Temperature
63
Resetting the Boiler
63
Accessing Basic Menu Items
64
Viewing Basic Information
64
Setting the DHW Operation
66
Viewing Error History
68
Viewing Other System Information
68
Setting the Display Options
69
Accessing Advanced Menu Items
69
Viewing Service Information
69
Viewing Input and Output Status
70
Setting the Operation Parameters
70
Diagnosing the Boiler System
72
Setting the Special Operation Modes
73
Error Codes
74
Maintaining the Boiler
75
Cleaning the Boiler
75
Draining the Boiler
75
Cleaning the Return Adapter Filter
76
Protecting the Boiler from Freezing
76
Routine Servicing
77
Interim Service
77
Full Service
79
CO and Combustion Checks
82
Appendices
85
Gas Conversion
85
Wiring Diagram
90
Ladder Diagram
91
Outdoor Temperature Sensor (Optional)
92
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