System Example For The Logamax Plus Gb162-15/25/35 With One Heating Circuit; Dhw Heating And Dhw Reheating Via 3-Way Diverter Valve - Buderus Logamax plus GB162 Technical Manual

6 System examples
6.3.6 System example for the Logamax plus GB162-15/25/35 with one heating circuit without mixer
directly downstream, solar DHW heating and DHW reheating via 3-way diverter valve
FSK
2
2x0,6
ÜS
Logasol
SKN3.0
SKS4.0
CPC6
Logasol
CPC12
KS0105
VK
RK
MAG
2
PSS
3x1,5
2x0,6
FE
Fig. 70 Circuit diagram for the system example (index of abbreviations
The circuit diagram is only a schematic
illustration.
Information regarding all system examples
page 52 ff.
Brief description
• Differential pressure-regulated operation of the boiler
pump in the Logamax plus GB162.
• Control of solar DHW heating with dual mode DHW
cylinder via SM10 solar module; for this, the thermal
disinfection function is automatically disabled at the
RC35 programming unit.
• DHW reheating via the integral 3-way diverter valve of
the Logamax plus.
72
AW
WWM
2x0,6
AW
FW
2
FSS
Logalux SM...
FS
SV
2x0,6
SM10
SU
BC10 2x0,6
2
3x1,5
VK RK
VS
SMF
RS
EK
page 52)
Special design information
• The SM10 function module is mounted either inside
the GB162 gas condensing boiler or inside the solar
station. The solar station can be delivered from the
factory with an integral SM10 solar module.
• The intelligent linking of the gas condensing boiler and
solar control unit with the SM10 solar module results in
optimum solar yields and saves reheating energy.
• DHW heating is, as an option, possible via an individual
time channel with actuation of a DHW circulation
pump.
• Generally, DHW heating takes priority (via the 3-way
diverter valve either cylinder heating or heating mode)
because of the selection of the DHW output at the
RC35 programming unit.
• An individual time channel is feasible for DHW heating
in combination with the RC35.
• Where required, adjust the setting of the differential
pressure-dependent pump inside the Logamax plus
GB162 subject to the relevant system (
page 64).
• Standard setting for pump modulation Δp = constant
– 150 mbar (Logamax plus GB162-15)
– 200 mbar (Logamax plus GB162-25/35)
6 720 645 821 (2010/09) – Logamax plus GB162
BUS
2
FA
2
2
230 V AC
50 Hz
MAG
RC35
(RC25)
HK1
THV
6 720 642 463-55.1il
tab. 25,