TERRA HGL/BA with

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Faults
7. Allgemeine Beschreibung
Faults
System error
Error
No.
Designation Description
22
Operating Manual NAV 1.0
T HE POWER FAMILY
026 Flow monitoring The fl ow switch in ground water systems has switched off the heat
pump (< 3 times in 24h).
027 Flow lock The fl ow switch in ground water systems has switched off the heat
pump (> 3 times in 24h). The heat pump is no longer triggered.
028 Start-up current limiter see LED Error start-up current limiter (< 5 times in 24h). The type of error is
displayed on the start-up current limiter.
029 Start-up current limiter 5x in 24h Error start-up current limiter (> 5 times in 24h). The heat pump is no
longer triggered.
030 Motor protection heat source pump The motor protection for the heat source pump has been triggered
(< 5 times in 24h).
031 Motor protection heat source 5x in 24h The motor protection for the heat source pump has been triggered
(> 5 times in 24h). The heat pump is no longer triggered.
032 Maximum defrosting time exceeded The maximum defrosting time has been exceeded
033 Minimum condenser temperature undershot
The heat pump has been switched off due to undershooting the minimum
condenser temperature.
034 Fan error The control system for the fan has detected a functional error.
036 Electric immersion heater overheating The safety thermostat of the immersion heater has been activated.
050 Dew-point monitoring device has been
activated
The heat pump has been switched off by the dew-point monitoring
device.
060 Heat source temperature The measured heat source outlet temperature undershoots the
minimum heat source temperature.
061 Warning heat source temperature The heat source outlet temperature reaches a critical value min. heat
source temperature + 2K
(C) IDM ENERGIESYSTEME GMBH