18
EN
CEX ELECTRONIC MPS®
Load shedding relay
If further three-phase appliances are connected, we recommend the use of a CLAGE
load shedding relay (art. no. 82250)
.
The relay can be connected to phase conductor L
2
.
A special operating mode must be selec ted on the appliance for this purpose.
LCD Description
0
Operation without load shedding, manufacturer‘s setting
1
Operation with normal load shedding relay
2
Operation with sensitive load shedding relay
To change the operating mode, press the three keys , , and simul taneously
and wait until the desired mode (0, 1 or 2) is shown on the display, then release the
keys. Operating mode 1 must be selected first, thus to check the correct operation of
the load shedding relay at low appliance output (35 degree setpoint and low water
flow rate). Mode 2 must be selected if the load shedding relay flickers.
Electrical connection
Check that the power supply is switched off prior to electrical connection!
Electrical connection with pre-installed power cable
The appliance is to be connected with the pre-installed power cable to a terminal box.
If necessary, use one of the three predetermined breaking points for the cable entry (at
the right, left or top).
6. Electrical connection
Only by a specialist!
Please observe:
• VDE 0100
• The installation must comply with current IEC and national local regulations or
any particular regulations, specified by the local electricity supply company
• The rating plate and technical specifications
• The unit must be earthed!
Wiring diagram
2
1
4
5
3
1. Electronic circuitry
2. Heating element
3. Safety pressure cut-out
4. Terminal strip
5. Safety thermal cut-out
• The appliance must be installed via a permanent connection. Heater must be
earthed! A maximum cable size must be observed: 6 mm
2
.
• The electric wiring should not be injured. After mounting, the wiring must not be
direct accessible.
• An all-pole disconnecting device (e.g. via fuses) with a contact opening width of at
least 3 mm per pole should be provided at the installation end.
• To protect the appliance, a fuse element must be fitted with a tripping current com-
mensurate with the nominal current of the appliance.
Structural prerequisites
