72
Cleaning the DHW cylinder
Danger
Uncontrolled escape of DHW or
heat transfer medium can cause
scalding and building damage.
Only open DHW and heating
water connections with a depres-
surised DHW cylinder.
!
Please note
Negative pressure in the DHW
cylinder can cause material dam-
age.
The air vent valve must always be
open when draining with a vac-
uum pump.
!
Please note
Pointed or sharp cleaning
objects
may damage the DHW cylinder.
!
Please note
Cleaning agents containing
hydrochloric acid
attack the material of the DHW
cylinder.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5782 201 GB
Содержание AWT-AC 221.A04
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Страница 88: ...88 Removing cover from programming unit if necessary 5 4 4x Troubleshooting Repairs cont 5782 201 GB ...
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