57
Checking the expansion vessel and heating circuit pressure
Observe design information.
Vitocal technical guide
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.)
5601 598 GB
Service
Summary of Contents for BWT 241.A Series
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