Low-Level Alarm And Low-Level Checking - Lauda Integral XT 150 Operating Instructions Manual

+
%
‰‰
Overtemp. alarm
tEMNP
+
- Before longer periods of unsupervised operation, the overtemperature protection
Command

7.16.2 Low-level alarm and low-level checking

Various levels (þ 7.5).
%
106
-
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 7.10.2).
-
1. Alarm sounds as dual-tone signal.
2.
°C
3. The red LED
-
-
-
should be checked. To do this:
- slowly lower T
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
- Unlock with the
Unlocking is not possible on the Command remote control!
-
Overtemperature alarm! is shown in the display and signifies that unlocking
is only possible on the Master control panel.
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 9.4).
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.
If the outflow temperature rises above the overtemperature cut-off:
tEMNP
for overtemperature appears in the display.
above the fault triangle
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!
, as described above.
max
tEMNP
key.
Starting up
appears in the display.
Overtemperature alarm!
Integral XT
flashes.
YAWE0028 / 24/06/2016