REGLOPLAS P140M Betriebsanleitung Seite 28

2.8.3 By previous evacuation of the consumer
The heat transfer fluid is suctioned through the consumer by means of underpressure created by reversing the pump's direction
of rotation.
In suction mode, the heat transfer fluid in the consumer will enter the sewage system through the cooling water outlet.
Pressing the Suction key initiates the suction program, in which the consumer connected to the unit is evacuated via the pump
by means of suction.
Suction is possible only when the temperature of the heat transfer fluid is below the programmed run-out temperature value
(RT50 Programming Instructions, Section 7.2, P 4.3). If this is not the case, the unit will first cool the fluid to this value.
The suction program can be interrupted by pressing the "ON/OFF" key.
Pressing the key again (wait until OFF shows in the display) returns the unit to normal operation.
90M Optional features, see Section 7.
2.9 Changing the consumer. Shutting the unit down for longer than one month. Restarting the unit.
Before removing connection hoses, ensure that the unit is switched off and that all circuits are free of pressure (→ 2.8). The
unit must be evacuated completely and stored in a dry location between 10 and 40 °C when not in use. Restarting the unit
(→ 2.1–2.7).
3 Malfunctions
3.1 Malfunction displays on the RT50 control system
The alarm display blinks every second, and an acoustic signal will sound. Malfunctions must always be corrected by qualified
personnel.
The following boxed texts may appear on the display:
For control Outlet sensor, Inlet or External.
If a sensor becomes defective, the unit will switch to cooling automatically.
During Cascade control , a defective external sensor (S2, consumer) will cause the unit to control to the internal sensor S1.
The actual value of the internal sensor temperature at the time of sensor malfunction will be used as the new set-point value.
The alarm must be acknowledged.
Level too low
Wrong phase sequence
The pump switches off a few seconds after it is switched on. Pump and control system remain off.
Motor current exceeded
Mal. Motor contactor One or more phases is missing or no response was received from the motor contactor via the auxiliary
contact.
Safety therm. triggered The unit cools automatically.
Heater thermostat triggered (inactive).
Max. set-point exceeded The unit cools automatically.
Flow monitor triggered Heater switches off automatically.
Min. flow rate not met The heater switches off automatically.
Deviation/outlet, Set point/ext. actual value, Set point/inlet exceeded or not met.
Unit and control continue to run normally.
Heating contactor malfunction Cause: Did not respond to close/open command.
Excessive leak-stop set-point/actual value
External set-point signal interrupted or not present The unit cools automatically.
Analogue/Digital converter defective Unit and control system are switched off.
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