13
9. Frost protection
If the unit is subjected to frost in periods of inactivity,
the unit and the piping system should be drained
before the unit is taken out of operation.
Fig. 7 Mounting positions making draining
easier
10. List of alarms
The unit has no draining options, but
mounting the unit in one of the
positions shown in fig. 7 makes
draining easier.
TM04 5459 3209
Indication Alarm Cause
"Alarm" is permanently on. Dry running. The pump has been running without water.
"Alarm" flashes once per
period.
Cycling.
The pump is cycling.
Note: Occurs only if the anti-cycling function has
been enabled. See section 8.2 Anti-cycling.
"Alarm" flashes twice per
period.
Maximum operating
time.
The pump has been running continuously for
30 minutes.
Note: Occurs only if the function "maximum
continuous operating time (30 minutes)" has been
enabled
. See section 8.3 Maximum continuous
operating time (30 minutes).
"Alarm" flashes three times
per period.
Protection mode.
The pump has had too many start/stop sequences
within a short period.
Each pump start is delayed a few seconds to
protect the installation. The start delay is active
until normal operation has been re-established.
Note: The protection mode will protect the
installation when the PM 2 is set to start/stop with
1 bar differential pressure, i.e. when DIP switch 5
is set to "ON". The protection mode functions
independently of the anti-cycling function.
"Alarm" flashes more than
three times per period.
Internal fault. Internal fault in the unit.
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