Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 47

System example 1
Pos. Description
Heating water buffer cylinder
zP Heating water buffer cylinder
zQ Buffer cylinder 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 - three-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 one heating circuit with mixer
q¢Z Heating circuit pump
q¢U Mixer motor - three-way mixer
Electrical connection
For further information regarding the
PCBs, see from page 220.
(cont.)
Preparing for installation
47