Buderus Logano plus SB325 Operating Instructions For User
Read carefully before use.
Operating instructions for users
Floor standing
condensing boiler
Logano plus SB325
6 720 804 354-00.1ITL
6 720 806 353 (2012/07) GB
Introduction
Logano plus SB325 – 6 720 806 353 (2012/07)
2
Introduction
Dear Customer,
Heat is our element - and has been now for more than 275 years.
Right from the start, we invest all our energies and passion into
developing individual solutions for you, so you feel comfortable in
your home.
Whether heat, domestic hot water or ventilation, a product from
Buderus will always provide you with highly efficient heating technology
of proven quality that will reliably keep your home cosy for many years
to come.
We manufacture in accordance with the state of the art and ensure that
our products are efficiently matched to each other. In this endeavour,
efficiency and environmental compatibility are our priorities.
Thank you for choosing a Buderus product - a choice that will give you
not only efficient energy utilisation but also high levels of comfort and
convenience. To ensure that you retain this level of excellence, please
read the operating instructions carefully. If, contrary to expectations,
problems arise, please contact your installer who will be happy to
assist you.
Should your installer not be available, then contact our customer
service that is available to you around the clock.
We hope you will enjoy your new Buderus product!
Your Buderus Team
Table of contents
1 General safety instructions and explanation of symbols . . . . 3
1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 About the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Determined use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Suitable fuels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5 Data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Information on installation and operation . . . . . . . . . . . . . . . . 6
3.1 Combustion air quality . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Heating water quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Using antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Preparing the heating system for operation . . . . . . . . . . 6
4.2 Commissioning the control unit and burner . . . . . . . . . . 6
5 De-commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.1 Shutting down the heating system . . . . . . . . . . . . . . . . . . 7
5.2 Shutting down the heating system in an emergency . . . 7
6 Correcting a burner fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7 Inspection and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.2 Why is regular maintenance important? . . . . . . . . . . . . . 8
7.3 Checking and correcting the water pressure . . . . . . . . . 8
7.3.1 When should you check the water pressure in the
heating system? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.3.2 Sealed unvented systems . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.3.3 Installations with automatic pressurisation units . . . . . . 8
8 Energy saving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
9 Environmental protection/disposal . . . . . . . . . . . . . . . . . . . . . 10
10 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1 General safety instructions and explanation of symbols
Logano plus SB325 – 6 720 806 353 (2012/07)
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1 General safety instructions and explanation
of symbols
1.1 Key to symbols
Warnings
The following keywords are defined and can be used in this document:
• NOTICE indicates a situation that could result in damage to property
or equipment.
• CAUTION indicates a situation that could result in minor to medium
injury.
• WARNING indicates a situation that could result in severe injury or
death.
• DANGER indicates a situation that will result in severe injury or death.
Important information
Additional symbols
1.2 Safety regulations
Danger through failure to consider your own safety in an emergency
such as a fire
▶ Never put your life at risk. Your own safety is paramount.
Installation and conversion
Insufficient ventilation can lead to dangerous flue gas leaks.
▶ Only have the boiler installed or modified by a qualified heating
engineer.
▶ Never change any parts in contact with flue gas.
▶ Neve r cover or redu ce the s ize of a ir vent s in do ors, wi ndows o r walls .
If draught-proof windows are fitted, ensure there is an adequate
combustion air supply.
▶ Ensure that the boiler installation room remains free from the risk of
frost.
▶ The heating system must be installed and operated in accordance
with the current applicable standards, rules and regulations.
Risk of damage due to operator error
Operator errors can result in injury and damage to property.
▶ Ensure that children never access this appliance unsupervised or play
with it.
▶ Ensure that only personnel who are trained to operate this appliance
correctly have access to it.
If you smell gas
▶ Close the gas isolation valve.
▶ Open the windows.
▶ Never operate electrical switches, including telephones, plugs or
doorbells.
▶ Extinguish all naked flames.
▶No open fire.
▶ Never smoke.
▶ Never use lighters.
▶ Warn all occupants of the building, but do not ring doorbells.
▶ Leave the building and telephone the national gas emergency service
on 0800 111999 from an outside phone.
If you smell flue gas
▶ Switch off the appliance.
▶ Open windows and doors.
▶ Notify an authorised contractor.
Electric shock hazard
▶ Before carrying out any work on the heating system, disconnect the
heating system from the power supply across all poles. For example,
activate the emergency stop switch outside the boiler room. It is not
enough to switch off the control unit.
▶ Secure power supply against unintentional reconnection.
▶ Observe country-specific rules and regulations when making the
electrical connection, commissioning, servicing and carrying out
maintenance.
Thermal disinfection
▶ Risk of scalding!
Monitor any operation with temperatures in excess of 60 °C.
Warnings in this document are identified by a warning
triangle printed against a grey background.
Keywords at the start of a warning indicate the type and
seriousness of the ensuing risk if measures to prevent
the risk are not taken.
This symbol indicates important information where
there is no risk to people or property.
Symbol Meaning
▶ Action step
Cross-reference to another part of this document
• List/list entry
Table 1
2 About the appliance
Logano plus SB325 – 6 720 806 353 (2012/07)
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Inspection and service
▶ Recommendation for customers: Arrange a service and inspection
contract with the service department of the manufacturer or with an
authorised contractor, covering an annual inspection and demanddependent service.
▶ The user is responsible for the general and environmental safety of
the heating system.
▶ Immediately correct all faults to prevent system damage!
▶ Use only genuine spare parts from the manufacturer. Losses caused
by the use of spare parts and accessories not supplied by the
manufacturer are excluded from the manufacturer's warranty.
Explosive and highly flammable material
▶ Never use or store highly flammable materials (paper, thinners, paints
etc.) near the boiler.
Combustion/room air
▶ Keep the combustion/ambient air free of corrosive substances
(e.g. halogenated hydrocarbons that contain chlorine or fluorine
compounds). This will help prevent corrosion.
▶ Keep the combustion air supply free of dust.
Disposal
▶ Dispose of packaging in an environmentally responsible manner.
2 About the appliance
2.1 Determined use
The Logano plus SB325 condensing boiler has been designed for hot
water heating systems in e.g. apartment buildings or industrial units.
The boiler is only approved for open flue operation.
Any pressure-jet gas burner type-tested to EN 676 can be used if its
operating range matches the boiler specifications.
Only burners that have been tested and approved for electromagnetic
compatibility (EMC) may be used.
2.2 EU Declaration of Conformity
The design and operation of this product conform to the applicable
European directives and supplementary national requirements.
Conformity has been demonstrated.
You can ask for a copy of the declaration of conformity for this product.
For this see the contact address on the back of these instructions.
2.3 Operating conditions
Observe all standards and directives applicable to the
installation and operation of this heating system in your
country. Observe the information on the data plate.
These are definitive and must be observed.
Set the burner to the rated heat input QN specified on
the data plate as a maximum.
Conditions of use Unit Value
Maximum permissible temperature,
high-limit safety cut-out
°C 110
Maximum operating pressure bar 4
Maximum number of burner starts per annum 15 000
Table 2 Conditions of use
Operating conditions Logano plus SB325 Logano plus SB325
Boiler water flow rate None –
in conjunction with a
Logamatic control unit
for modulating
operation.
None –
in conjunction with a
Logamatic control unit
4212 for constant
boiler water
temperatures or when
supplemented by a
third party control
unit.
Min. boiler water
temperature
Operating Interruption
(complete boiler shut-down)
Heating system control
with mixer
Minimum return
temperature
Miscellaneous
1)2)
1) Maximum 15,000 burner starts per year. In order not to exce ed the number of
burner starts, observe the information on settin g the control unit and burner in the
technical guide or installation instructions. If this value is exceeded, however,
please contact the manufacturer's service department.
2) The number of burner starts per year is affected by the boiler system's operating
settings (controller paramete rs in the boiler controller and combustion setting)
and sizing to correspond with the consumers' heat demand. To avoid exceeding
the number of annual burner starts as a result of operating settings which have not
been optimised, the manufacturer offers a complete commissioning and regular
document inspections for floor standing residential conventional boilers, burners
and boiler controller (Logamatic control units with function modules).
1)
Table 3 Operating conditions
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