Table of Contents
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List of Contents
Air Heater
Air Top 2000 S D (Diesel)
Air Top 2000 S B (Gasoline)
Service and Repair Manual
– Improper installation or repair of Webasto heating and cooling systems can cause
fire or the leakage of deadly carbon monoxide leading to serious injury or death.
– Installation and repair of Webasto heating and cooling systems requires special
Webasto training, technical information, special tools and special equipment.
– NEVER attempt to install or repair a Webasto heating or cooling system unless you
have successfully completed the factory training course and have the technical skills,
technical information, tools and equipment required to properly complete the
necessary procedures.
– ALWAYS carefully follow Webasto installation and repair instructions and heed all
WARNINGS.
– Webasto rejects any liability for problems and damage caused by the system being
installed by untrained personnel.
Air Top 2000
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Table of Contents
Related Manuals for Webasto Air Top 2000 S B
Summarization of Contents
Introduction
Scope and Purpose
Defines the manual's scope, purpose, and lists additional documentation.
Warnings, Safety, and Legal Provisions
Explains warnings, safety notes, and legal requirements for installation.
General Description
Heater Components and Functions
Describes key components like the fan, heat exchanger, burner, control unit, sensors, and pump.
Functional Description
Control Element and Start-Up
Details the control element, switch-on sequence, and stabilization process.
Operation Modes and Shutdowns
Explains heating, idle modes, normal shutdown, and failure lockout procedures.
Technical Data
Specifications and Limits
Covers fuel types, voltage, performance, environmental limits, dimensions, and weight.
Troubleshooting
General Troubleshooting and Symptoms
Offers initial steps, cautions, and common failure symptoms with remedies.
Operational Failure Symptoms
Details specific failure symptoms that occur during heater operation.
Error Code Output Interpretation
Explains error code display and lists common error codes.
Functional Tests
Testing, Adjustments, and Calibration
Describes testing methods, CO2 adjustment, and basic setting procedures.
Component Resistance Testing
Details testing procedures for glow plug and flame sensor resistance.
Circuit Diagrams
Overview and Terminal Assignments
Provides an overview of control circuits and terminal assignments.
Wiring Diagram with Control Dial
Shows the wiring diagram for automatic control with a control dial.
Wiring Diagram with Combination Timer
Displays the wiring diagram for automatic control with a combination timer.
Wiring Diagram with Control Dial and Standard Timer
Illustrates the wiring for automatic control with both timer types.
Combination Timer Connection Diagram
Shows the physical connection diagram for the combination timer.
Servicing
General Servicing and Precautions
Overview of servicing, precautions for working on heater/vehicle, and test runs.
Scheduled Maintenance and Inspections
Recommends periodic checks, visual inspections, and adherence to installation rules.
Fuel Supply and Tapping Methods
Explains fuel connection, tapping methods for diesel/gasoline engines, and fuel supply diagrams.
Fuel Lines and Connections
Specifies requirements for fuel line material, routing, diameter, and connections.
Dosing Pump and Fuel Filter Installation
Details dosing pump installation and fuel filter usage.
Air and Exhaust Line Management
Covers combustion air supply, exhaust line requirements, and routing limitations.
Electrical Connections and Power Supply
Explains connections for heater, power supply, and control dial.
Example Installation Layout
Illustrates a typical installation layout of the heater and its components.
Repair
General Repair and Component Handling
Overview of repairs, warranty, and post-disassembly component handling.
Heater Component Replacements Overview
Introduces the section detailing replacement of major components.
External Temperature Sensor Installation
Guides on installing an external sensor for improved temperature control.
Housing Disassembly and Assembly
Details dismantling and reassembling the heater's housing components.
Control Unit and Temperature Limiter Replacement
Provides instructions for replacing the control unit and temperature limiter.
Combustion Air Fan Replacement
Outlines the steps for removing and installing the combustion air fan.
Flame Sensor and Glow Plug Replacement
Guides on replacing the flame sensor and glow plug.
Burner, Tube, and Heat Exchanger Replacement
Explains how to replace the burner insert, combustion tube, and heat exchanger.
Packaging, Storage, and Shipping
General Handling and Packaging
Provides general instructions for cleaning and packaging the heater for shipment.
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