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FGB-28
Wolf FGB-28 User Manual
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GB
IE
Wolf GmbH / Postfach 1380 / D-84048 Mainburg / T
el. +49.0. 87 51 74- 0 / Fax +49.0.87 51 74- 16 00 / www
.wolf.eu
Document no.: 3064458_20181
1
Subjecttotechnicalmodications
Installation and maintenance instructions for contractors
W
all 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
2
Table of Contents
Default Chapter
2
Table of Contents
2
Information on Documentation / Standard Delivery
3
Safety Instructions
5
Dimensions
8
Specification
9
Set-Up
10
Standards and Regulations
12
Installation
15
Positioning
15
Installation Dimensions
16
Opening the Casing
17
Installation
18
Gas Connection
19
Fitting the Trap
20
Air/Flue Gas Routing
21
Control Unit
22
Electrical Connection
22
Control Unit
28
HG Control Parameters
33
Parameter Description
35
Commissioning
44
Filling the Heating System / Trap
44
Filling for Optional Appliance Versions
50
Draining the Heating System
51
Determining the Gas Type
52
Checking the Gas Supply Pressure
53
Adjusting the Maximum Heating Output
56
Checking the Combustion Parameters
57
High Efficiency Pump Function Description
58
Commissioning Report
60
Maintenance
62
Maintenance - Fault Messages
62
Maintenance - Spare Parts Maintenance Set
63
Preparing for Maintenance
64
Determining the Soiling Level on the Heating Water Heat Exchanger (Flue Gas Side)
65
Burner Maintenance
66
Checking the Ignition Ionisation Electrode
68
Cleaning the Trap / Checking the Expansion Vessel
69
Removing the Heat Exchanger
70
Assembling the Heat Exchanger
72
Checking the DHW Heating
75
Specification
76
Safety Devices
76
Design Information, Underfloor Heating / DHW Circulation
93
Service Report
94
Troubleshooting
95
FGB Wiring Diagram
99
Product Fiche According to Regulation (EU) No. 811/2013
100
Technical Parameters According to EU Regulation No. 813/2013
102
Eu Declaration of Conformity
103
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Wolf FGB-28 Specifications
General
Output
28 kW
Installation Type
Wall-mounted
Energy Efficiency Class
A
NOx Class
5
Max Water Temperature
85 °C
Fuel Type
Natural gas / LPG
Operating Pressure
3 bar
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