Lutz-Jesco C 2526, Operating Instructions Manual

Page: 19 / 48

Installation
Electric installation
19
© Lutz-Jesco GmbH 2016
Subject to technical changes.
160520 BA-20901-02-V01
Chlorinator C 2526 Operating instructions
7.4 Electric installation
DANGER!
Mortal danger from electric shock!
Improperly installed or damaged components in the electronics
installation can cause injury.
ð Ensure that all work on the electrical installation is performed by a
qualified electrician.
ð Ensure that all work on the electrical installation is performed in a
de-energised state.
ð Ensure that the power supply is secured with a fault current
protective circuit.
ð Replace damaged cables or components without delay.
7.4.1 Electrical regulation valve
The electrical regulation valve is optional. Connection is made in
accordance with the instructions either to the regulation valve or the
servomotor.
7.4.2 Contact gauge
The vacuum meter is optional.
7.4.2.1 Connect the contact vacuum meter
Comply with the specifications regarding contact load capacity (see
section 5 “Technical data” on page 13). The electrical connection is
made at the terminal box integrated in the dosing device.
Perform the following working steps:
1.
Open the terminal box by applying lateral pressure to the handle on
the hinge. A tool is not required.
2.
Mount the cable screw connection (appropriate size) to the cable
cross-section.
3.
Guide the cables into the terminal box and connect the cables using
the clamps included in the scope of delivery.
4.
Tighten the cable screw connections and close the terminal box to
guarantee the IP protection class of the system.
ü
Contact vacuum meter connected.
Pressure gauge
type
Cable colours
Pressure gauge
with 1 contact White - brown
Pressure gauge
with 2 contacts Contact no. 1 (switches
with a strong vacuum) White - brown
Contact no. 2 (switches
with a weak vacuum) Yellow - green
Table 13: Cable assignments contact pressure gauge
7.4.2.2 Switch point of the contact vacuum meter adjusted.
Usually, the following situations are signalled according to the system
configuration:
Situation Possible cause Recommended
switch point
Insufficient
vacuum Fault on the injector -0.2 bar
Vacuum too strong Fault in the chlorine
supply -0.7 bar
Table 14: Function s of the contact vacuum meter
Fig. 13: Adjusting the switch point
Perform the following working steps:
1.
Remove the transparent lid (2) from the contact vacuum meter. To do
so, unscrew the outside ring (1) from the device. Observe the seal (3)
2.
Move the red marking (4) on the desired switch point.
3.
Refit the transparent lid and tighten the ring nut by hand. Ensure the
correct position of the seal.
ü
Switch point of the contact gauge adjusted.
7.4.3 Signal converter
The signal converter is optional, offered for use only with a 230 V/4…20
mA control valve. The connection is made in accordance with a separate
set of instructions. As delivered, the connection between the control valve
and the signal converter is already complete.
4 3 2 1