System Example For The Logamax Plus Gb162-15/25/35/45 With Logamatic 4121, Solid Fuel Boiler And One Heating; Circuit With Mixer - Buderus Logamax plus GB162 Technical Manual

6 System examples
6.3.8 System example for the Logamax plus GB162-15/25/35/45 with Logamatic 4121, solid fuel boiler
and one heating circuit with mixer
FA
FS
SV
SU
2)
BC10
VS RS
VK RK
G-KS
Fig. 72 Circuit diagram for the system example (index of abbreviations
1)
Hydraulic balancing at the thermostatic valves/zone valves
recommended
2)
No 3-way diverter valve integrated in the GB162-45
The circuit diagram is only a schematic
illustration.
Information regarding all system examples
page 52 ff.
Brief description
• Hydraulics with one heating circuit with mixer, DHW via
cylinder primary pump and connection of a solid fuel
boiler with buffer cylinder.
• Control via the Logamatic 4000 and Logamatic 2114
control units.
• Recognition of external heat via the temperature sensor
in the low loss header.
• An individual time channel is available for DHW.
• The Logamatic 2114 control unit switches the SU
diverter valve.
74
Logamatic 4121
2
2x0,6
BUS
MAG
FK
SMF
SA
WH
Logalux PR...
PZ
KR AW
2
3x1,5
2
2x0,6
EZ
KR PS
FW
EK
VH
SU
RH
FP
Special design information
• The "short circuit" line G-KS is required for boilers up
to 35 kW.
• The return will be channelled via the buffer cylinder if
the buffer cylinder temperature is higher than the return
temperature.
• The return will be channelled directly to the low loss
header if the buffer cylinder temperature is lower than
the return temperature.
• The burner of the gas condensing boiler and the
internal heating circuit pump will be switched off if the
temperature captured by the temperature sensor of the
low loss header FK is high enough on account of
external heat.
6 720 645 821 (2010/09) – Logamax plus GB162
2
3x1,5
TWH
2
2x0,6
FV2
KR
PH2
SH2
(HSM...)
(HKV 2/...)
Logamatic 2114
FK
TW
Logano S151
6 720 642 463-57.1il
page 52)
1)
ZV (THV)
HK
2
4x1,5