Buderus Logano GE515 Technical Guide

7 Systems
6 720 646 864 (12/2010) – Technical guide Logano GE315, GE515 and GE615
39
7.2.4 Layout of safety components to DIN-EN 12953-6;
shutdown temperature (high limit safety cut-out) > 110 °C
Shutdown temperature (high limit safety cut-out)
> 110 °C, example 1 –direct heating
Fig. 31 Safety equipment to DIN-EN 12953-6 for
boilers with high limit safety cut-out (STB)
> 110 °C;
example: pressure maintained via gas buffer
The diagrams give a schematic representation of the
safety equipment to DIN-EN 12953-6 for the system
versions listed here – no claim is made as to their
completeness.
The diagrams only show versions where the pressure is
maintained via a gas buffer and pressure maintaining
pump. Beyond this, see the DIN-EN 12953-6 for other
versions of pressure maintenance with different types of
safety equipment.
If the high limit safety cut-out is > 110 °C, observe further
requirements (e.g. repeat inspections etc.) as specified in
the Health & Safety at Work Act [Germany].
The practical implementation is subject to currently
applicable technical rules. We recommend planning the
system together with the relevant supervisory authority.
Shutdown temperature (high limit safety cut-out)
> 110 °C, example 2 –direct heating
Fig. 32 Safety equipment to DIN-EN 12953-6 for
boilers with high limit (STB) > 110 °C;
example: gas buffer, pressure maintaining pump
Key to Fig. 31 and Fig. 32:
RK Return
VK Flow
1 Hot water boiler
2 Maximum pressure limiter [PSZ+A+]
3 Pressure display facility
4 Water level controller
5 Flash trap
6 Safety valve
7 Minimum water level limiter [LSZ-A-]
8 Temperature limiter [TZ+A+]
9 Temperature controller
10 Temperature display facility
11 Fill & sample facility for water level test
12 Shut-off valve - protected against unintentional closure
13 Sealed expansion vessel
14 Minimum pressure limiter [PSZ-A-]
15 Non-return valve
17 Shut-off valve
18 Line to the sealed expansion vessel
19 Feed pump
20 Heating facility
22 Pressure maintaining pump
23 Pressure regulator
24 Automatic shut-off valve (closed at zero volt)
25 Water level display
26 Open expansion vessel
27 Pressure maintaining valve - if closed at zero volt or if the
actual pressure is lower than the minimum pressure, item
24 can be omitted
28 Shut-off valve with option to connect a pressure gauge
30 Minimum temperature controller (if required)
31 Drainage system
6 720 640 417-15.1il
6 720 640 417-16.1il

Buderus Logano GE515 Specifications

General

Brand	Buderus
Model	Logano GE515
Category	Boiler
Language	English