Extension For External Connections (Accessories) - Viessmann VITOPEND 200 Installation And Service Instructions Manual

Function description
Weather–compensated control unit (cont.)
DHW heating
If the flow switch recognises that
DHW is drawn off (> 3 l/min), the bur-
ner and circulation pump are switched
ON and the three‐way valve changes
over to DHW heating.

Extension for external connections (accessories)

Internal extension H1
100
The burner modulates to reach the
DHW outlet temperature and is limited
on the boiler side by the temperature
limiter (85 °C).