Viessmann Vitocal 300-G Installation And Service Instructions Manual page 53

DHW heating 1
(cont.)
Required devices
Pos. Description
1 DHW cylinder
2 Electric immersion heater EHE (accessory)
Must be installed below the upper cylinder temperature sensor 4
Not required if an instantaneous heating water heater is installed
Only connect if the external heat source is not used for DHW heating
On-site connection
3 DHW circulation pump (max. 50 W)
4 Cylinder temperature sensor, top
5 Cylinder temperature sensor, bottom (option)
6 Circulation pump for cylinder heating (max. 130 W, already installed
and connected for type BWC/WWC)
LP PCB (see page 63)
Preparing for installation
53