83
28
The programmed upper limit value of the sensor Sn2 (consumer temperature) has been exceeded (see
Section 11.1, Fig. 2).
Unit and control will continue to run normally.
29
The temperature registered by sensor Sn2 (fluid temperature) has fallen below the laver limit pro-
grammed (see Section 11.1, Fig. 2).
30
Malfunction at heating contactor (H1 or H2).
Note: The alarm is activated when the heating contactor does not pick up despite receiving the heating
signal, or when it does not release when the signal is no longer sent (e.g. contacts have welded toge-
ther).
31
Set value or actual value too high for leak-stop mode. For correction, see Section 3, “Suction/Leak
Stop” key.
Unit and control will continue to run normally. By pressing the “Alarm Reset” key, the display will
disappear.
32
The external set value signal has been interrupted, is not present or is outside the defined range. Cool-
ing is switched on.
XXX
H1(H2)
ALARM
RESET
SP
ILL
ALARM
RESET
S2
–
ALARM
RESET
XXX
S2
S2
–
ALARM
RESET
XXX
S2
XXX S P
ALARM
RESET
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