Viessmann Vitocal 300-G Installation And Service Instructions For Contractors page 41

System example 1, ID: 4605307_1006_01
Pos. Designation
Heating water buffer cylinder
zP Heating water buffer cylinder
zQ Buffer temperature sensor
zW System flow temperature sensor
zT
Solar buffer temperature sensor (connection S4 to Vitosolic)
zZ Solar circuit pump R4 for heating up the heating water buffer cylinder
zU High limit safety cut-out for heating water buffer cylinder to switch off the
solar circuit pump R4 zZ
Heating circuit with mixer (M2)
uP Underfloor heating circuit with directly controlled mixer motor
uQ Vitotrol 200 remote control (accessory)
uE Flow temperature sensor
uR Temperature limiter as maximum limiter for underfloor heating systems
uZ Heating circuit pump
uU Mixer motor in 3-way mixer
Heating circuit with mixer (M3)
q¢P Radiator heating circuit with mixer, controlled via KM BUS
q¢Q Vitotrol 200 remote control (accessory)
q¢E Flow temperature sensor
q¢T Extension kit for heating circuit with mixer
q¢Z Heating circuit pump
q¢U Mixer motor in 3-way mixer
Electrical installation scheme
Overview of electrical connections and
details regarding the PCBs, see from
page 67 and the separate service
instructions, Vitotronic 200 heat pump
control unit.
Preparing for installation
(cont.)
For information regarding the power sup-
ply, see page 91.
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