Lauda Integral XT 150 Operating Instructions Manual page 141

Integral XT
Master: Warning message
Command: Low flow (cooling unit).
(Not enough flow in region of evaporator).
(þ 7.15).
Master: Warning message
Command: Low flow (heater).
(Not enough flow in region of heater).
(þ 7.15).
Master: Alarm message
Command: Overtemperature protection.
(þ 7.16.1).
Master: Warning message
Command: Level very low
(Imminent low level in the expansion vessel).
Master: Alarm message
Command: Low level.
(Low level in the expansion vessel)
(þ 7.16.2).
YAWE0028 / 24/06/2016
WXArn 332
WXArn 007
tEMNP
WXArn 104
LEUEL
Maintenance
1. Check whether there is a blockage in the hy-
draulic circuit (closed valves, pinched hose,
dirt ...). à Rectify cause.
2. Pump level too low. à Select a larger pump
level (þ 7.9.3).
3. Pipe cross-section is too small. à Enlarge
cross-section or use bypass (þ 10 and
7.15.1).
4. Cooling power for the existing volume flow too
high. à Reduce cooling power (þ 7.15.7.1).
1. Check whether there is a blockage in the hy-
draulic circuit (closed valves, pinched hose,
dirt ...). à Rectify cause.
2. Pump level too low. à Select a larger pump
level (þ 7.9.3).
3. The device has not been vented or degassed
sufficiently. à Degas device (þ 7.6.2 and
7.6.3).
4. Pipe cross-section is too small. à Enlarge
cross-section or use bypass (þ 7.15.1 and
10).
5. Heater power for existing volume flow too high.
à Limit heater power (þ 7.15.7.1 and
7.15.7.2).
1. Wait until the outflow temperature has cooled
below the overtemperature cut-off point or set
the cut-off point higher than the outflow tem-
perature.
1. Check hoses, connections and load for wheth-
er a leaky location is present. à As applicable,
rectify the leakage and top up the missing heat
transfer liquid (þ 7.6.4).
2. Check the Integral XT for whether a leaky loca-
tion is present. à If necessary, contact LAUDA
Service Constant Temperature Equipment (þ
9.5).
3. The liquid may drop due to cooling or degas-
sing. à If necessary, top up the missing heat
transfer liquid (þ 7.6.4).
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