Integral XT
106
Starting up
YAWE0028 / 24/06/2016
+
−
Not higher than 25 °C below the fire point of the heat transfer liquid used
(
þ
6.2).
−
The setting range is restricted to 5 °C above the upper limit of the working tempera-
ture range ( Tih
þ
%
‰‰
−
If the outflow temperature rises above the overtemperature cut-off:
1. Alarm sounds as dual-tone signal.
2.
tEMNP
for overtemperature appears in the display.
3. The red LED
above the fault triangle
flashes.
à
Heater switches off on both poles;
à
Pump and refrigerating unit are switched off electronically.
−
Rectify cause of fault (
þ
9.4).
−
Unlock with the
key.
−
Unlocking is not possible on the Command remote control!
+
−
Before longer periods of unsupervised operation, the
overtemperature protection
should be checked. To do this:
−
slowly lower T
max
, as described above.
à
Cut-off at the outflow temperature should occur.
−
Step 1 – 2 (see above) must follow.
−
Set the overtemperature cut-off higher than the outflow temperature
again and wait until
tEMNP
appears in the display.
−
Unlock with the
key.
Unlocking is not possible on the Command remote control!
Command
Overtemperature alarm!
−
Overtemperature alarm! is shown in the display and signifies that unlocking
is only possible on the Master control panel.
7.16.2 Low-level alarm and low-level checking
Various levels (
þ
7.5).
Low level warning: With the Integral XT the warning is activated at Liq-
uid Level 1, then the operator should top up (also possible in running
operation) and check why less medium is present (cooling, degassing
or leakage?) (
þ
%
‰‰
If the liquid level in the expansion vessel continues to fall (Level 0), an
alarm is triggered.
1. The alarm sounds as a dual-tone signal.
Overtemp. alarm
tEMNP
°C
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