36
English
User manual - 1.2
7
FAILURES
7.1
Remedy failures
1.
Localise the failure using the failure table,
see § 7.3.
2.
If necessary, put the unit out of operation,
see § 7.2.
3.
Remedy the failure.
4.
Reset the unit, see § 7.4 or put the unit into
operation again, see § 5.5.4.
7.2
Putting out of operation
1.
Take the plug out of the wall socket or switch off
the main switch. Make sure that switching on the
voltage unintentionally is not possible.
2.
Close the valves (A) and/or (C) in the inlet line and
(B) and/or (D) in the outlet line.
3.
Close, if applicable, the valve (E) in the refill supply
line as well.
4.
Connect a drain line (H) to the drain connection (G).
5.
Drain the unit through the drain connection (G).
6.
Open the air vent screw on the main pump to
completely empty the unit. See the figure in §
5.4.2.
WARNING
•
In case of failure always warn the
installer.
•
Remove the voltage and pressure from
the unit before starting the activities see
§ 7.2.
•
Pressing O
N
/O
FF
does
not
remove the
voltage from the unit.
WARNING
There are hot parts below the cover. Let the
unit cool down before starting the activities.
NOTE
In case of a failure the red LED is lit. The
failure report appears in the display.
NOTE
With the types S6A-R and S6A-R 2P the
seriousness of the failure determines whether
the whole unit or a part of the unit switches
off. With partly switching off the refilling
process remains active. In this case both the
red and the green LEDs are lit.
G
C
E
B
A
F
D H
OBJ_BUCH-45-001.book Page 36 Tuesday, June 14, 2011 10:56 AM
