58
Draining the boiler on the DHW side
1.
Connect hose to drain valve and
route into a suitable container or drain
outlet.
Note
Ensure adequate ventilation in the
DHW pipework.
2.
Turn drain valve from lever position
A
(operational) to lever position
B
or
C
as required.
■ Lever position
B
: Drain drinking
water circuit in appliance
exclud-
ing
DHW cylinder via the cold
water connection.
■ Lever position
C
: Drain drinking
water circuit in appliance
and
DHW
cylinder via the DHW connection.
The cold water connection remains
filled.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5773 216 GB
Содержание Vitodens 222-F B2TA series
Страница 12: ...12 2 5 1 4 2x 3 Installing the boiler Removing the front panels 5773 216 GB...
Страница 13: ...13 1 2 SW17 Installing the boiler Siting and levelling the boiler 5773 216 GB Installation...
Страница 19: ...19 2x 4x 4 3 5 2 1 Installing the boiler Opening the control unit casing 5773 216 GB Installation...
Страница 29: ...29 5 4 2 6 2x 3 1 Installing the boiler Closing the control unit casing 5773 216 GB Installation...
Страница 31: ...31 4 1 5 2 2x 3 Installing the boiler Fitting the front panels 5773 216 GB Installation...
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