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Instructions for installer - CEX - 801045 - November 2018 v1.00 Art.no:

 9120-25692

Structural prerequisites

•  The cross sectional area of the connection cable must be in accordance with the 

power rating of the appliance and the specific requirements of AS/NZS 3000.

•  The appliance must be permanently connected to the electrical supply through an 

isolation switch as per AS/NZS 3000.

•  The electric wiring should not be damaged. 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.

8. Electrical connection

Wiring diagram

1.  Electronic circuitry
2.  Heating element
3.  Safety pressure cut-out
4.  Terminal strip
5.  Safety thermal cut-out

Only by a specialist!
Please observe:
•  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 appliance must be earthed!

2

1

4

5

3

Electrical connection (only by a qualified tradesperson)

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 bottom).

Summary of Contents for 27920

Page 1: ...Hot Water Electronically controlled instantaneous water heater CEX 27921 50 C and 27920 60 C models Installation instructions For 50 C models the appliance delivers water not exceeding 50 C in accord...

Page 2: ...ation 8 Installation site 8 Mounting the appliance 9 Installing the appliance 9 8 Electrical connection 10 Wiring diagram 10 Structural prerequisites 10 Electrical connection only by a qualified trade...

Page 3: ...ause a feeling of burning Please note that the fittings and taps may be very hot when the appliance has been in use for some time The appliance is only suitable for domestic use and similar applicatio...

Page 4: ...erminal 3 99394 Flow sensor 4 99385 Non return valve 5 99395 PCB CEX 6 99418 CEX control panel 7 Inlet pipe 8 CEX U cover Pos Part No Description 9 Inlet filter 10 Connection piece 1 2 11 Safety therm...

Page 5: ...Heating system Bare wire heating system IES Required spec water resistance 15 C Spec electrical conductivity 1000 cm 100mS m Inlet temperature 70 C Flow rate to switch on max flow rate 2 0 5 0l min 3...

Page 6: ...herefore please take this device to a municipal collection point that accepts electronic scrap Disposing it correctly will support environmental protection and will prevent any potential negative effe...

Page 7: ...ge of the unit approx 600 294 177 70 75 100 G Example of an open outlet installation with special tap Example of a closed outlet installation Dimensions in mm Depth 108 Upper edge of the sink approx 8...

Page 8: ...c resistance can be asked for with your water distribution company For 50 C models The appliance delivers water not exceeding 50 C in accordance with AS3498 For 60 C models The appliance may be able t...

Page 9: ...be used for this purpose alternatively 3 Connect the top and bottom marks vertically with each other A A 4 Connect the right and left marks horizontally with each other B B 5 The intersections of the...

Page 10: ...ripping current com mensurate with the nominal current of the appliance 8 Electrical connection Wiring diagram 1 Electronic circuitry 2 Heating element 3 Safety pressure cut out 4 Terminal strip 5 Saf...

Page 11: ...e so that one can securely fix the cladding of the cable with the cord grip If necessary use one of the three predetermined breaking points for the cable entry at the right left or bottom The protecti...

Page 12: ...data shown in the table Technical specifications in particular the required cable size and fuse protection for the electrical connec tion Moreover the electrical installation must comply with the sta...

Page 13: ...and deactivating the supply voltage 9 Initial operation Reinstallation The operating mode of the appliance can be restricted The service menu can be used to configure the appliance Activation of the l...

Page 14: ...nt power consumption kW t1 Temp in Indication of inlet temperature C t2 Temp out Indication of outlet temperature C CA Control value Indication of calibration value of the control system Regular range...

Page 15: ...channel with wireless module only Information about the current radio channel of the water heater and its remote control rS Received strength with wireless module only Information about the current s...

Page 16: ...have been modified and may not be true representations of the finished goods 1 3 2 1 2 1 1 C 1 C A1 A2 B1 B2 2 4 3 1 1 0 5 C 0 5 C 3 1 2 2 8 4 7 5 3 6 9 1 Arrow key down Arrow key up Programme button...

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