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Buderus Manuals
Boiler
Logano G225
Installation and service instructions manual
Table Of Contents - Buderus Logano G225 Installation And Service Instructions Manual
Fan-assisted low temperature/condensing boiler
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Contents
Contents
1
General safety instructions and
explanation of symbols
1.1
Safety instructions
1.2
Explanation of symbols
2
Product details
2.1
EU Declaration of Conformity
2.2
Intended use
2.3
Standards, regulations and directives
2.4
Notes on installation and operation
2.5
Heating system water quality
2.6
Tools, materials and equipment
2.7
Disposal
2.8
Product description
2.9
Contents
2.10 Dimensions and specifications
2.10.1 Logano G225 BE dimensions
2.10.2 Boiler room and ambient conditions
2.10.3 Conditions for combustion air supply
2.10.4 Conditions for fuel
2.10.5 Conditions for the power supply
2.10.6 Conditions for the system configuration and
water quality
3
Transporting the boiler
4
Boiler positioning
5
Boiler block assembly
5.1
Assembly when delivered in sections
5.1.1 Preparation of boiler sections
5.1.2 Driving nipples home
5.1.3 Preparing the centre section
5.1.4 Inserting the packing cord
5.1.5 Knocking the centre section into place
5.1.6 Boiler section alignment
5.1.7 Joining the boiler sections at the upper
and lower boiler hubs with nipples
5.1.8 Fitting the anchor rods
5.1.9 Installation of the feed pipe and connection
profile
5.1.10 Fitting the temperature sensor
5.1.11 Fitting the flue outlet
5.1.12 Closing the boiler hubs
5.2
Checking for leaks
5.2.1 Preparing for a leak test
5.2.2 Carrying out the leak test
5.3
Installation of pre-assembled boiler heat
exchanger
2
Logano G225/Logano plus GB225 - We reserve the right to make any changes due to technical modifications.
5.4
Assembly steps for boilers supplied in
sections and as ready assembled block
5.4.1 Fitting the adjustable feet
5.4.2 Inserting the hot gas baffle plates
4
5.4.3 Installing the burner door
4
5.4.4 Installing the boiler casing
5
5.5
Positioning and levelling the boiler
6
Installing the boiler
6
6
6.1
Installing the flue pipe
6
6.1.1 Flue pipe sealing collar for negative pressure
6
flue (pressure at boiler outlet < 0 mbar)
6
6.1.2 Flue pipe sealing collar for positive pressure
6
flue (pressure at boiler outlet > 0 mbar)
6
6.2
Fitting the water connections
7
6.2.1 Connecting the central heating flow
8
and return
9
6.2.2 Connecting the safety flow and return
10
6.2.3 Connecting the DHW cylinder
10
6.2.4 Fitting the boiler fill & drain valve
11
(not supplied)
12
6.3
Filling the heating system and checking
12
for leaks
13
6.4
Connecting the fuel supply
6.5
Electricity connection
13
6.5.1 Fitting the control unit
6.5.2 Connecting the mains power supply and other
components
14
6.5.3 Fitting a strain relief
6.6
Installing casing parts
15
7
Commissioning the heating system
16
7.1
Bringing the system up to operating pressure
45
16
7.2
Preparing the heating system for operation
16
7.3
Switching on the heating system
17
7.4
Starting the burner
18
7.5
Raising the flue gas temperature
18
7.5.1 Removing hot gas baffle plates
19
7.5.2 Removing the hot gas check plate
19
7.6
Installing the burner hood
7.7
Setting the room controller/control unit
20
7.8
Commissioning report
22
8
Shutting down the heating system
23
8.1
Normal shutdown
25
8.2
Shutting down the heating system
26
in emergencies
26
8.2.1 What to do in an emergency
27
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9
Heating system servicing
9.1
Why is regular servicing important
?
28
9.2
Preparing the boiler for servicing
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