KAESER TG 450, Руководство оператора, Страница: 35 / 116

4.5.1 Condensate drain operating states
The operational state of the ECO-DRAIN condensate drain is indicated by three light-emitting di‐
odes on the housing.
Display Operating state Function
Service
Alarm
Power
Ready to operate Voltage is applied.
Service
Alarm
Power
Fault/alarm
Fault occurred.
Valve opens and closes repeatedly in an attempt to clear
the fault.
Service
Alarm
Power
Test the valve function For manual draining, press and hold the key for at least
2 seconds.
Test the alarm function To test the alarm function, press and hold the key for at
least 1 minute.
Tab. 19 Indication of the operational state of the condensate drain
4.6 Safety devices
The following safety devices are provided and may not be modified in any way:
■ Main switch:
The main switch also functions as a power supply disconnecting device. In the “0” position, the
machine stops immediately.
■ Safety pressure switch:
The switch shuts down the machine as soon as the pressure of the refrigerant exceeds the
permitted maximum. The switch is factory set.
■ Enclosures and covers over moving parts and electrical connections:
These protect against accidental contact.
4.7 Floating contacts
Floating contacts are provided for the transfer of signals/messages.
Information on location, loading capacity and type of message or signal can be found in the wiring
diagram.
If the floating relay contacts are connected to an external power source, they may be under
power even when the machine is disconnected from the supply.
4 Design and Function
4.6 Safety devices
No.: 901760 02 USE
Operator Manual Refrigerated Dryer
TG
25