Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 57

System example 2
Pos. Description
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
Swimming pool
qYP Swimming pool
qYQ Thermostat for controlling the swimming pool temperature
qYW Circulation pump for swimming pool heating
qYE Plate heat exchanger
qYR External extension H1 (only 1 external extension H1 can be connected to
the heat pump)
qYT Three-way diverter valve (zero volt: Heating the heating water buffer cylin-
der)
Note
The additional parameters for two-stage
operation are set during commissioning
by the certified heat pump contractor.
Electrical connection
For further information regarding the
PCBs, see from page 220.
(cont.)
Preparing for installation
57