2
About the appliance
Logano plus SB325 – 6 720 806 328 (2013/07)
5
2
About the appliance
2.1
Type overview
2.2
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.
2.3
Safety equipment
To ensure safe operation, the boilers must be equipped with the
following safety equipment:
• The level of safety equipment must comply with at least EN 12828.
• Also observe country-specific regulations if these specify further
requirements.
Equipment examples are included in chapter 11 , page 38. The
components comprising the safety equipment are available as
accessories.
2.4
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.
The Declaration of Conformity can be viewed at www.buderus.co.uk or
alternatively can be requested from your local Buderus sales office.
2.5
Scope of supply
▶ Upon receipt, check that all packaging is in perfect condition.
▶ Check the delivery is complete:
– 1 packed boiler supplied on a pallet.
– Technical documents, attached to boiler block.
– 1 boiler casing with thermal insulation and accessories, packed in a
carton.
– 1 siphon set supplied inside the combustion chamber.
– Insulating rings for blast tube supplied inside the combustion
chamber
It is possible that some of the standard accessories will not be necessary
for certain boiler types.
2.6
Required accessories
The following accessories are not part of the standard delivery but are
required to operate the boiler:
• Burner
• Boiler safety assembly
• Safety equipment
• Cleaning brushes
• Control unit.
2.7
Operating conditions
Type
Output
SB325
50 kW, 70 kW, 90 kW, 115 kW
Tab. 2 Type overview
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
Tab. 3 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 mixing valve
Minimum return
temperature
Miscellaneous
1)2)
1) Maximum 15,000 burner starts per year. In order not to exceed the number of
burner starts, observe the information on setting 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 parameters 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)
Tab. 4 Operating conditions
