Draining The Heating Water Buffer Cylinder; Instructing The System User - Viessmann VITOCELL 140-E Installation And Service Instructions Manual

Draining the heating water buffer cylinder

1. Isolate electrical accessories (immersion heater
EHE, impressed current anode, etc.) from the
power supply and safeguard against reconnection.
2. Close the cold water inlet and heating circuits.
3. If not present, attach drainage hose to the drain
valve and route to a suitable drain.

Instructing the system user

The installer should instruct the user in the operation of
the system.
Commissioning, inspection, maintenance
4. Open taps or air vent valve.
5. Open drain valve.
The system installer should also provide information
on the required maintenance.
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