Booster Heater - Viessmann VITOCAL 300-A Installation And Service Instructions Manual

Booster heater

The DHW can be reheated either by
an electric booster heater (e.g. on-site
immersion heater) in the DHW cylin-
der, or by an external heat source
(control or enabling the pump for the
external heat source).
Note
Set "Booster heater" to "Yes" only if
"Ext. HS for DHW" is set to "NO"
(see page 146).
Press the following keys:
1. "Device settings".
DHW with electric heating
DHW heating with electric booster
heater "DHW with e heating" (6015).
DHW control settings
2. "Programming".
3. "DHW".
4. y/x for "Booster heater"
(6014).
5. "YES" to enable.
6. "BACK" to confirm.
Operating instructions
151