Viessmann Vitocal 242-S Installation And Service Instructions Manual page 14

Preparing for installation
System example, ID: 4605415_1202_02
Pos. Designation
Heating circuit with mixer M2/HC2 (KM BUS)
uP Underfloor heating circuit/cooling circuit
uQ Vitotrol remote control
uE Flow temperature sensor
uR Temperature limiter to restrict the maximum temperature of underfloor
heating systems
■ as immersion thermostat
or
■ as contact thermostat
uZ Heating circuit pump
uU 3-way mixer, heating circuit
Mixer motor of the 3-way mixer
q-T Mixer extension kit
Active cooling function AC
qI Frost stat 230 V
iE Contact humidistat 230 V
iO
3-way diverter valve for "heating/cooling"
Heating circuit without mixer A1/HC1
oP Radiator heating circuit
oQ Vitotrol remote control
oZ Heating circuit pump
Electrical installation scheme
For an overview of the electrical connec-
tions and more detailed information
regarding the PCBs, see from
page 49 and the service instructions
for the Vitotronic 200 heat pump control
unit.
14
(cont.)
For information regarding the power sup-
ply, see page 61.