Hydraulic Boiler Schemes For Appliances Without 3-Way Diverter Valve; System Example For Logamax Plus Gb162-45 With Internal Pump, Rc35 Programming Unit, 3-Way Diverter Valve And Direct Heating Circuit Without Mixer - Buderus Logamax plus GB162 Technical Manual

6 System examples
6.4

Hydraulic boiler schemes for appliances without 3-way diverter valve

6.4.1 System example for Logamax plus GB162-45 with internal pump, RC35 programming unit, 3-way
diverter valve and direct heating circuit without mixer
PZ
KR
EK
Fig. 74 Circuit diagram for the system example (index of abbreviations
1)
Hydraulic balancing at the thermostatic valves
recommended
2)
Pump available as an accessory
3)
Necessary where very quiet operation is required
The circuit diagram is only a schematic
illustration.
Information regarding all system examples
page 52 ff.
Brief description
• Hydraulics with heating circuit without mixer with direct
supply via the heating circuit pump.
• DHW heating with priority via a separate 3-way diverter
valve.
• Requires only the RC35 programming unit.
• An individual time channel is available for DHW.
76
FA
2
2x0,6
G-SU
FW
FS
SV
2)
BUS
BC10
FE
MAG
VK RK
RDD
SMF
page 52)
Special design information
• Observe the pump curves of the individual appliances.
• The lowest Δp = constant setting of the internal pump
for the Logamax plus GB162-45 is 200 mbar.
• Use a differential pressure controller where extremely
quiet operation of radiator valves is required.
• The gas condensing boiler requires no minimum water
circulation.
• For the Logamax plus GB162-45, order an internal
heating circuit pump separately, as these appliances
are delivered without a heating circuit pump.
• The DHW temperature sensor FW is connected at the
terminal strip of the gas condensing boiler.
6 720 645 821 (2010/09) – Logamax plus GB162
RC35
1)
THV HK
3)
6 720 642 463-58.1il