92
DHW cylinder drain & fill valve positions
A
B
C
A
Closed
B
Open to drain the internal DHW
line
C
Open to drain or fill the cylinder
Overview of internal components: External unit
Danger
Contact with 'live' components
can result in severe injuries.
Capacitors remain 'live' after the
power supply has been switched
OFF.
Wait at least 4 min, until the
capacitors have discharged,
before starting work on the exter-
nal unit.
Troubleshooting
Repairs
(cont.)
5546 699 GB
