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Wolf FGB-35 User Manual

Wolf FGB-35
104 pages
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GB
IE
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 Subjecttotechnicalmodications
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
from FW 1.20

Questions and Answers:

Wolf FGB-35 Specifications

General IconGeneral
BrandWolf
ModelFGB-35
CategoryBoiler
LanguageEnglish

Summary

Safety Instructions

General Safety Warnings

Crucial warnings regarding gas, electricity, hot water, and hot components to prevent injury or death.

System Operation and Maintenance Safety

Safety procedures for working on the system, including isolation, and recommendations for inspection and service.

Installation

Gas Connection

Electrical Connection

Terminal Strip Connections

Power Supply and Fuse

Low Voltage Appliance Connections

ISM7e Module Options

Control Unit

HG Control Parameters

Contractor Parameter Access

Guide to accessing and navigating the contractor parameters (H01-A09) for system configuration and adjustment.

Parameter Description

Parameter H01-H08 Description

Detailed explanation of parameters H01 through H08, covering burner control, pump run-on, and temperature limits.

Parameter H09-H16 Description

Description of parameters H09 to H16, including eBUS addresses, gas type, and pump rate settings.

Parameter H17-H34 Description

Explanation of parameters H17, H19, H21, H23, H25, and H34 related to pump speed, boiler temperature, and eBUS feed.

Parameter H37-H40 Description

Description of parameters H37, H38, H39, and H40, covering pump control, soft start, and system configuration.

Parameter H40/H41 Description

Details on system configurations (H40) and pump speed for DHW operation (H41).

Parameter H51-H53 Description

Explanation of DHW configuration (H51), pasteurisation (H52), and activation intervals (H53).

Parameter H54 Description

Description of the heating curve parameter (H54) and its effect on flow temperature based on outside conditions.

Parameter H55 Description

Explanation of the DHW quick start parameter (H55) for increased convenience.

Parameter A09 Description

Description of the system frost protection parameter (A09) for safeguarding against freezing.

Filling the Heating System / Trap

Determining the Gas Type

Checking the Gas Supply Pressure

Changing the Gas Type

CO2 Setting at Upper Load

CO2 Setting at Lower Load

Adjusting Maximum Heating Output

Checking Combustion Parameters

Intake Air Check

Procedure for checking intake air temperature and CO2 content during emissions testing.

Flue Gas Parameter Check

Steps for checking flue gas parameters (CO2, O2) at upper and lower load during emissions testing.

High Efficiency Pump Function

Commissioning Report

Maintenance - Fault Messages

Fault History Access

Procedure for accessing and resetting fault history via the control unit to diagnose and address operational issues.

Maintenance - Spare Parts

Preparing for Maintenance

Heat Exchanger Soiling Check

Fitting Pressure Test Connector

Instructions for fitting the pressure test connector and connecting the differential pressure tester to the heat exchanger.

Determining Pressure Differential

Procedure for measuring heat exchanger pressure differential and interpreting readings to assess soiling levels.

Burner Maintenance

Disconnecting Plug-in Connections

Guide to safely disconnecting electrical plug-in connections for the fan, gas valve, and ignition electrode.

Removing Combustion Chamber Cover

Burner Cleaning Procedure

Checking Ignition Ionisation Electrode

Replacing Electrodes

Procedure for removing, replacing, and torquing the ignition and ionisation electrode, including gasket replacement.

Cleaning Trap / Checking Expansion Vessel

Removing the Heat Exchanger

Emptying the Boiler

Steps for emptying the boiler on the heating water side by closing valves and opening the drain valve.

Removing Flow and Return Pipes

Guide to disconnecting sensors, pump fittings, and pipes before removing the heat exchanger.

Removing Condensate Pan

Cleaning the Heat Exchanger

Assembling the Heat Exchanger

Assembling Heat Exchanger

Steps for hooking the heat exchanger into place and securing condensate pans.

Filling Boiler Water Side

Fitting Combustion Chamber and Plug-in Connections

Tightening Gas Combination Valve

Filling the Trap and Control Reading

Checking DHW Heating

Safety Devices

Temperature Monitoring Devices

Description of safety devices like high limit cut-outs, boiler water temperature sensors, and flue gas temperature sensors.

Design Information - Underfloor Heating / DHW Circulation

Service Report

Troubleshooting

General Troubleshooting Information

Overview of fault reporting, safety precautions, and the procedure for diagnosing and remedying faults.

Fault Code Troubleshooting - Part 1

Table detailing fault codes (01-05), their possible causes, and recommended remedies for boiler malfunctions.

Fault Code Troubleshooting - Part 2

Table detailing fault codes (06-16, 24), their possible causes, and recommended remedies for sensor and pump issues.

Fault Code Troubleshooting - Part 3

Table detailing fault codes (27, 30, 32, 47, 85, 96, 99, 107), their causes, and remedies, including a key to abbreviations.

FGB Wiring Diagram

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