Table of Contents
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Installation and maintenance instructions for contractors
Wall mounted gas
condensing boiler
FGB wall mounted gas condensing boiler
FGB-K wall mounted gas condensing combi boiler
FGB-28
FGB-35
FGB-K-28
FGB-K-35
Wolf GmbH / Postfach 1380 / D-84048 Mainburg / Tel. +49.0. 87 51 74- 0 / Fax +49.0.87 51 74- 16 00 / www.wolf.eu
Document no.: 3064458_201811
from FW 1.20
Subject to technical modifications
GB
IE
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Table of Contents
Related Manuals for Wolf FGB-28
Summarization of Contents
Installation and Maintenance Instructions
Wall Mounted Gas Condensing Boiler Overview
Overview of Wolf FGB/FGB-K series wall-mounted gas condensing boilers.
Document Information and Standard Delivery Contents
Document Handling and User Guidance
Guidance on safekeeping manuals and instructing system users on boiler operation and maintenance.
Recycling and Disposal Instructions
Environmental guidelines for disposing of old equipment, parts, and packaging materials.
2. Safety Instructions
Key Safety Warnings and Symbols
Covers gas, electrical, scalding, burn hazards, and explains warning symbols used in the manual.
7. Positioning and Clearances
Installation Room Requirements and Clearances
Specifies minimum clearances around the boiler and temperature requirements for the installation room.
Operation in Wet Rooms
Conditions and requirements for installing the boiler in rooms with potential moisture exposure.
8. Installation Dimensions
Securing Bracket and Flue System Dimensions
Instructions for mounting the suspension bracket and dimensions for flue system components.
10. Installation Connections
Hydraulic and Gas Connections
Details on connecting heating flow/return, DHW, and cold water lines, including safety valves.
14. Electrical Connection
General Electrical Installation Requirements
Information on regulations, contractor requirements, and isolator installation for electrical hookup.
Accessing Boiler Components for Wiring
Steps for safely removing the front casing and accessing internal electrical components.
Electrical Installation Details
Permanent Power Connection and Fuse Replacement
Guidance on permanent power supply connections, especially in protected areas, and fuse replacement.
Low Voltage Appliance Connections
Connecting External Sensors and Control Units
Instructions for connecting temperature sensors, cylinder sensors, and digital control accessories via eBus.
15. Control Unit Operation
Control Unit Key Assignment and Modes
Explanation of control unit buttons, operating modes (Standby, Summer, Winter), and key functions.
16. HG Control Parameters
Contractor Parameters (H01-H09)
Introduction and initial list of contractor parameters for system configuration and burner control.
17. Parameter Description
Parameter Descriptions (H01-H08)
Detailed explanations for parameters H01 (hysteresis) through H08 (max boiler water temperature).
18. Filling the Heating System and Trap
Heating Water Treatment Requirements
Guidelines for treating heating water according to VDI 2035 to prevent corrosion and scaling.
Heating Water Quality Standards
Table detailing limits for total hardness and conductivity in heating water based on system volume.
21. Determining the Gas Type
Gas Categories and Supply Pressure Table
Table specifying gas types and required supply pressures by country for boiler operation.
23. Changing the Gas Type
Procedure for Gas Type Conversion
Step-by-step guide for changing gas restrictors and setting the boiler's gas type via contractor level.
25. Checking Combustion Parameters
Flue Gas Emissions Test Procedure
Instructions for conducting flue gas emissions tests, including checks on intake air and flue gas.
28.1. Maintenance - Fault Messages
Accessing and Resetting Fault History
Procedure for viewing and resetting fault history through the control unit's contractor level.
28.3. Preparing for Maintenance
Isolating Power and Gas, Removing Casing
Steps for safely isolating the boiler from power and gas, and removing the front casing before maintenance.
30. Safety Devices
Temperature and Pressure Monitoring Systems
Details on safety cut-outs, temperature sensors, and system pressure monitoring for boiler protection.
31. Technical Information - Balanced Flue
Balanced Flue Connection Types Overview
Overview of various balanced flue configurations (e.g., C13x, C33x, B33) and their connection compatibility.
Multiple Boiler Cascade System Information
Guidelines and considerations for connecting multiple boilers to a common chimney system.
32. Design Information for Underfloor Heating and DHW
Underfloor Heating System Design Considerations
Guidelines for connecting underfloor heating systems, including pipe permeability and pump sizing recommendations.
NTC Sensor Resistance Table
Table listing resistance values for NTC sensors used in temperature monitoring at various temperatures.
34. Troubleshooting - General Information
Fault Identification and Resolution Process
Steps for reading fault numbers, identifying causes, and resetting the system after fault resolution.
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