REGLOPLAS 90S Betriebsanleitung Seite 24

4.3 Operating and display elements (Fig. 2)
1 LCD display.
2 Keys for programming and selecting the display.
3 Alarm reset key.
4 On/Off key.
5 Key for leak-stop mode.
6 Key for suction and blow-out.
7 Key for switching between set-point values SP1 and SP2.
8 Key for operation with timer.
9 Keys for entering set-point value and programming.
10 Status line
Set-point and actual value displays
Once the control system has been switched on using the "ON/OFF" key, the set-point temperature SP1 or SP2
(SP = Set-point) will appear in the lower part of the display, and in the upper part the actual value of the outlet
temperature S1 of the internal sensor in the heat transfer fluid or S2, the temperature of the external sensor in
the consumer (S = Sensor).
Keys for entering the set-point value and programming
Increasing or decreasing the set-point value, selecting the program position, changing the programmed values.
Timer key
If the RT50 is equipped with a timer, it is activated by this key. The unit is switched on and off via the timer.
Leak-stop key
Pressing this key puts the unit into leak-stop mode. Leak-stop mode is possible only when the set-point value is
in the run-out temperature range ("RT50 Programming Instructions", Section 7.2, P 4.3) of 0 to 80 °C max.
The leak-stop function can be interrupted by pressing the "ON/OFF" key. Pressing the key again (wait until
"OFF" appears on the display) will then switch over to normal mode.
Suction key
Pressing this key initiates the evacuation sequence. The consumer connected to the unit will be evacuated by
the pump through suction.
Evacuation is possible only when the temperature of the heat transfer fluid is below the value programmed for
run-out temperature ("RT50 Programming Instructions", Section 7.2, P 4.3). If this is not the case, the unit will
first cool the heat transfer fluid to this value.
The pump is switched off. Once the pump run-out time ("RT50 Programming Instructions", Section 7.2, P 4.9),
has elapsed, the pump is switched on again in the opposite direction of rotation. The pump then evacuates the
consumer during the time programmed for the evacuation time ("RT50 Programming Instructions", Section 7.2,
P 4.6).
After the programmed evacuation time has elapsed, the unit switches off automatically. The suction procedure
can be interrupted by pressing the "ON/OFF" key. Pressing the "ON/OFF" key again (wait until "OFF" appears
on the display), will switch the unit back to normal mode.
Alarm Reset key
Function:
1 Manual reset of the alarm relay (e.g. switching off a horn). Once the malfunction has been corrected, the
alarm display can be erased by pressing the key once more.
2 Manual acknowledgment of the automatic switch from control of the consumer temperature or cascade con-
trol to control of the outlet temperature in the event of a defective or missing S2 sensor in the consumer.
SP key
Switchover between set-point value 1 (SP1) and set-point value 2 (SP2).
Note: Set-point value switchover is possible only when no alarm is active.
Operation with code
To prevent the set/programmed values from being inadvertently changed, we strongly recommend the use of a
code. There are 4 possibilities:
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Fig. 2: Operating and display elements
BA 90S 0702/dfe