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General| Category | Boiler |
|---|---|
| Brand | Navien |
| Model | NCB-700-2S+/42K |
| Efficiency | 95% AFUE |
| Fuel Type | Natural Gas |
| Warranty | 15 years heat exchanger, 5 years parts |
Guidance on how to obtain service for your boiler and what details to provide.
Log of changes and versions for the service manual.
Essential safety guidelines and warnings for proper boiler operation and maintenance.
Explanation of danger, warning, and caution symbols used in the manual.
Regulatory requirements and standards for boiler installation.
Steps for converting the boiler from natural gas to LPG.
Overview of the NCB700 series gas boiler, its features and models.
Details on boiler models, ratings, built-in features, and compatibility.
Visual identification of major internal components of the boiler.
Comprehensive technical specifications and performance data for the boiler.
A table detailing the general operating and performance specifications of the boiler.
Diagrams and measurements showing the physical size and connection points of the boiler.
Information on boiler setup, DIP switches, gas conversion, and front panel operation.
Configuration of DIP switches on the PCB and front panel for boiler functionality.
Procedure and safety precautions for measuring incoming gas pressure.
Instructions for converting the boiler from natural gas to LPG.
Explanation of front panel icons, buttons, and operational modes.
Guidance for diagnosing and resolving boiler faults using error codes and symptoms.
A table classifying error codes by category with brief descriptions.
Detailed diagnosis and actions for specific error codes.
Solutions for common boiler issues based on observed symptoms like noise or temperature.
Step-by-step instructions for safely replacing various boiler components.
Precautions and general steps before and after part replacement.
Detailed instructions for replacing individual parts like PCB, Fuse, Fan Motor.
Visual diagrams and part numbers for major boiler assemblies.
Exploded view and part list for the boiler's external case components.
Exploded view and part list for the boiler's burner system.
Exploded view and part list for the boiler's water circuit components.
Recommended schedule for annual servicing, owner maintenance, and inspection reports.
Guidance on performing annual servicing for safe and efficient operation.
A template for recording maintenance activities performed on the boiler.
Daily, monthly, and periodic maintenance tasks for the owner.
A template for documenting inspection results of boiler systems.
