Lauda IN 130 T Operation Manual page 151

Fault
Display: Gage pressure
(Outflow pressure too high)
Display: Evaporator frozen
Unstable temperature control
(Temperature fluctuates strongly)
V6 Integral Process Thermostats and High-Temperature Thermostats
Cause ð Possible remedy
Pump level is too high ð select a lower pump level.
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When pressure control is active, the set pressure is too
n
high ð reduce the set pressure.
The maximum pressure is too low ð increase the max-
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imum pressure, but only if your application, hoses, etc.
cannot be damaged.
Increase the pump level.
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Open the manual bypass in the constant temperature
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equipment.
Increase the flow rate through the application.
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Increase the pump level.
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Open the manual bypass in the constant temperature
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equipment.
If necessary, increase the control parameters Xp and Tn.
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Increase the flow rate through the application.
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Reduce the load.
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