Heating Dhw By A Heat Pump - Viessmann Vitocell 300-B Installation Instructions Manual

Connections on the heating water side

Heating DHW by a heat pump

Via the upper and lower indirect coils (coils connected
in series)
1
KW
Fig. 14
DHW cylinder
1
Heat pump
2
3-way valve
3
1. Install the heat supply control unit.
2. Only for heating water flow temperatures in excess
of 110 °C:
Install an additional type-tested high limit safety
cut-out if the system does not already have one.
For this, use a TR/HLSC combination device (tem-
perature limiter and high limit safety cut-out).
Note
For connections, see page 6.
18
WW
3
2
(cont.)
4
Heating circuit
4
KW Cold water
WW DHW
3. Close test ports that are not used for the installa-
tion of a sensor.