Control
19
© Lutz-Jesco GmbH 2021
Subject to technical changes.
210527
BA-22404-02-V03
Chlorine changeover unit
C 7520
Operating instructions
Manual stop
The C button in the centre of the control unit was pressed
n
Close both motor ball valves.
n
Both arrow LEDs light up red.
n
Both bottle LEDs light up unchanged.
8.2.2 Manual operation
ü
The selector switch on the engine is in the "Man" position.
The ball valve on the hand lever of the motor is activated in manual oper-
ation. The motor no longer follows the signals of the control.
n
All LEDs flash red.
n
Remote signalling of an empty supply battery is not possible.
8.2.3 Special operating states
All Empty
Both supply batteries are empty or the pressure gauge does not give a
contact.
n
Both bottle LEDs light up red.
n
Arrow LED on the side of the open motor ball valve lights up green.
n
Arrow LED on the side of the closed motor ball valve lights up green.
n
The relay "empty" drops out.
n
The relay "alarm" drops out.
Gas alarm
If the relay contact of a gas warning device is connected to terminal
27/28, both motor ball valves close in the event of a gas alarm.
n
All LEDs flash red.
n
The relay "alarm" drops out.
Fault
The motor is in the "Man" position, the end positions in the motor are ad-
justed or there is no electrical connection between the motor and the
control device.
n
All LEDs flash red.
n
The relay "alarm" drops out.
Jumper error
The jumpers on the circuit board of the control were set to an impermis-
sible combination.
n
All LEDs flash red in a clockwise directio
