Maintenance
Finishing maintenance
23
© Lutz-Jesco GmbH 2018
Subject to technical changes
180321
BA-24721-02-V02
Chlorine gas changeover unit
C 7523
Operating instructions
8.
Clean all components of the ball valve e.g. with warm water or iso-
propyl alcohol. Allow all components to dry well.
9.
Fit the ball valve with new elastomer. Both of the seals are lightly
rubbed with silicone grease.
i
The ball in the ball valve can be fitted in a mirror inverted fash-
ion. Set the coupling to the control rod to check. The arrow on
the coupling points the correct position of the ball.
10.
Pull the screw-in part (2) sensitively. The control rod (6) must be ro-
tatable with a little resistance.
11.
Remove the O-ring from the pressure gauge connection using a plas-
tic tool. Clean the pressure gauge connection and insert a new
O-ring. Silicone grease is rubbed in to the O-ring.
12.
Slide the pressure gauge connection onto output of the ball valve
connection with a rotating movement.
13.
Fit the assembly in the wall console. Slide the pressure gauge cable
through the slot in the pressure gauge connection. Pull the 4 screws
above on the ball valve sensitively.
14.
Insert the coupling piece between the ball valve and motor on the
control rod of the ball valve. It will only fit in a single direction.
15.
Turn the ball valve into the same position which it had before the
maintenance.
16.
Install the servomotor.
ü
Maintenance performed on the ball valve.
11.7 Functional control
Precondition for action:
ü
The changeover unit is ready for operation.
Perform the following working steps:
1.
Switch the selector switch on the motor to AUTO
2.
Switch on the voltage supply.
3.
Quit all fault messages by pressing the OK button repeatedly until
both cylinders signal green.
4.
Remove the screw cap on the pressure gauge.
5.
Simulate empty supply batteries: Carefully move the pressure gauge
pointer in an anti-clockwise direction past the red marking and allow
it to turn in the starting position.
6.
In this way, check the display in all operating situations and if neces-
sary, the position of connected notification equipment.
7.
Then fit the screw cap on the pressure gauge and tighten it carefully
by hand. Ensure the correct position of the seal.
ü
Functional check performed.
11.8 Finishing maintenance
Perform the following working steps:
1.
Make a note of the date and scope of the maintenance performed.
2.
Attach a sticker displaying the maintenance date to the device.
3.
Fit the connections to the device.
4.
Close the control.
5.
Pull all the cable screw connections to the control.
6.
To restart the system, follow the instructions given in chapter 9
"Start-up" on page 18.
ü
Maintenance completed.
