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E-compact instant water heater
CEX 9-U

E-compact instant water heater CEX 9-U

Energy efficiency class A

(Scale: A+ to F)

  • CEX 9-U: 6.6/8.8 kW, 220–240 V

This is where the CEX 9-U is used.

  1. Kitchen sink

    Kitchen sink

  2. Washstand

    Washstand

  3. Double washbasin

    Double washbasin

Innovative heating technology.

Product innovation
Compact instantaneous water heater for washbasins and kitchen sinks. The nominal power ranges from 6.6 to 8.8 kW at 220 to 240 V. This means that the unit has sufficient output to heat water from 35 °C to 55 °C at around 5 l/min. Since the incoming cold water in many southern countries is warmer than in Central and Northern Europe, the relatively low device output is nevertheless sufficient for a pleasant showering experience or similar applications. During installation, the instantaneous water heater can be limited to 6.6 kW. Thus, the device is versatile and sets new standards in terms of fast and efficient water heating with IES® heating technology.

  • Electronically controlled instant water heater (undersink model) in compact design
  • The heating output is electronically controlled. This provides an ideal hot water temperature without the need to add cold water at the tap.
  • Push-button operation panel with LED display for precise temperature setting between 20 °C and 55 °C
  • In the comfort zone between 35 °C and 43 °C, the temperature can be set in 0.5 degree increments
  • Two programming buttons for individual pre-set temperatures limits as well as function indicators
  • Easy installation under the kitchen sink facilitated by small dimensions and external ½-inch water connectors
  • Connection set (T-piece and flexible pressure hose) for an angle valve is included in delivery
  • With power cable for permanent electrical connection
  • Precise temperatures due to TWIN TEMPERATURE control TTC® up to the capacity of the appliance
  • The efficient bare wire heating system IES® reduces lime scale deposits and provides an extended service life
  • With the Multiple Power System MPS®, the maximum power rating is set at the time of installation: 6.6 or 8.8 kW
  • Can also be controlled by tablet or smartphone (from iOS 9 / Android-OS 4.4) (this requires an FXE3 (C) radio adapter and the "Smart Control" app)
  • Solar system compatible (supply temperature ≤ 60 °C)
  • Dimensions (height × width × depth): 29.4 × 17.7 × 10.4 cm

Technical data

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Data. Values. Facts.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
E-compact instant water heater CEX 9-U
Kitchen sink Washstand Double washbasin  
CEX 9-U
Part number
Nominal power rating 1) (variably adjustable due to MPS) at 230 V [kW]
Maximum operating pressure [MPa (bar)]
Water connections (thread connections)
Hot water output at Δt = 33 K 2) [l/min]
Switch-on flow rate [l/min]
Maximum flow rate 3) [l/min]
Supply voltage [1~ / N / PE 220–240 V AC] permanent connection
Nominal current at 230 V [A]
Required cable diameter [mm²]
Maximum inlet temperature [°C]
Solar-ready 4)
Protection class
Specific water resistance at 15 °C [Ωcm] ≥
Weight filled with water [kg], approx.
2400-26449
6.6 8.8
1 (10) 1 (10)
G ½" G ½"
2.9 3.8
2 2
5 5
29 38
4 6
60 60
IP 24 IP 24
1100 1100
2.7 2.7

1) The selected power rating determines the values of nominal current, cable diameter and hot water output

2) Temperature increase e.g. from 12 °C to 45 °C

3) Limited flow amount for optimal temperature increase

4) Suitable for reheating

Downloads

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Media type Title Date Size

Product information sheet

CEX9-U-PI-en.pdf

23.12.2021

> download
Product information sheet CEX9-U-PI-en.pdf 23.12.2021 478 kB
> download

Operating and installation instructions

CX3-CEX9-GMA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sv-el.pdf

19.04.2021

> download
Operating and installation instructions CX3-CEX9-GMA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sv-el.pdf 19.04.2021 5,9 MB
> download

Image-only instructions

CX3-230V-Bilderanleitung-Untertisch.pdf

07.05.2021

> download
Image-only instructions CX3-230V-Bilderanleitung-Untertisch.pdf 07.05.2021 1006 kB
> download

Safety instructions

Sicherheitshinweise-Durchlauferhitzer-de-en-fr-nl-pt-es-pl-sv-cs-sk-bg-no-fi-ru-sr-el-it-tr-ro.pdf

19.03.2021

> download
Safety instructions Sicherheitshinweise-Durchlauferhitzer-de-en-fr-nl-pt-es-pl-sv-cs-sk-bg-no-fi-ru-sr-el-it-tr-ro.pdf 19.03.2021 483 kB
> download

Energy label

CEX9U-Energielabel.pdf

13.02.2017

> download
Energy label CEX9U-Energielabel.pdf 13.02.2017 220 kB
> download

CE Conformity

CE-Konformitaetserklaerung-nach-RED+RoHS3-CX-2021-09.pdf

05.11.2021

> download
CE Conformity CE-Konformitaetserklaerung-nach-RED+RoHS3-CX-2021-09.pdf 05.11.2021 752 kB
> download

Product photo

CEX-U-CX3-45Grad-Produktfoto-rechts.jpg

23.12.2021

> download
Product photo CEX-U-CX3-45Grad-Produktfoto-rechts.jpg 23.12.2021 414 kB
> download

Product photo

CEX-U-CX3-45Grad-Produktfoto-links.jpg

23.12.2021

> download
Product photo CEX-U-CX3-45Grad-Produktfoto-links.jpg 23.12.2021 74 kB
> download

Product photo

CEX-U-CX3-45Grad-Produktfoto-frontal.jpg

23.12.2021

> download
Product photo CEX-U-CX3-45Grad-Produktfoto-frontal.jpg 23.12.2021 417 kB
> download

Accessories

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Accessories set

Accessories set (included)

Two seals, two aerator and a G ½-inch valve as a water flow regulation and shut-off option.

Accessories set: Part no. 82568

CSP 6

CSP 6 (optional)

Aerator insert for tap adapter M 22/24 at the tap. The aerator at the tap supports the energy- and water-saving operation of the compact instant water heater. The new special CSP aerators mix air into the water and thus create a uniform water stream that does not splatter but softly cascades down. CSP 6 (< 3,5 l/min).

CSP 6: Part no. 0010-00461

CSP 6a

CSP 6a (optional)

Aerator with chrome tap adapter M 24a (suitable for taps with internal thread at outlet). The aerator at the tap supports the energy- and water-saving operation of the compact instant water heater. The new special CSP aerators mix air into the water and thus create a uniform water stream that does not splatter but softly cascades down. CSP 6a (< 3,5 l/min).

CSP 6a: Part no. 0010-0047

CSP 6i

CSP 6i (optional)

Aerator with chrome tap adapter M 22i (suitable for taps with external thread at outlet). The aerator at the tap supports the energy- and water-saving operation of the compact instant water heater. The new special CSP aerators mix air into the water and thus create a uniform water stream that does not splatter but softly cascades down. CSP 6i (< 3,5 l/min).

CSP 6i: Part no. 0010-0046

EAK

EAK (optional)

Single-lever mixer tap with side lever and swivel spout 20 cm

EAK: Part no. 1100-04430

EKM

EKM (optional)

EKM: Part no. 1100-04220

EWT

EWT (optional)

Single lever mixing tap for pressureless installation with nickel- and lead-free water lines, EASY FIX mounting system and pull-up drain stopper, spout 11.2 cm, height × width: 15.1 × 17.5 cm

EWT: Part no. 1100-04420

FVS

FVS (optional)

Flexible connecting hose ⅜ inch cap nut × ⅜ inch cap nut, length 50 cm

FVS: Part no. 89620

FXS 3 (C) Radio remote control set

FXS 3 (C) Radio remote control set (optional)

FX 3 radio remote control plus Bluetooth® radio adapter FXE 3 (C) in a set for installation in the instantaneous water heater. In addition to operation on the appliance, the radio remote control enables convenient temperature setting of the instantaneous water heater over a distance of approx. 10 metres in the building. Secure Bluetooth® radio transmission, infinitely variable temperature selection via two buttons, two fixed value buttons and an LCD display, magnetic wall bracket and batteries (included). IP 20. Dimensions (H × W × D): 5.8 × 12.5 × 1.9 cm.

FXS 3 (C) Radio remote control set: Part no. 3200-34027

(optional)

: Part no. 3200-34026

Reducing adapter

Reducing adapter (optional)

⅜-inch (a) × ½-inch (i) flat sealing

Reducing adapter: Part no. 89675

T-piece

T-piece (optional)

Special T-connector ⅜ inch cap nut × ⅜ inch angle valve 10 mm

T-piece: Part no. 89610

Interesting features.

  1. Smart Control-ready

    Smart Control-ready

  2. Remote control (optional)

    Remote control (optional)

  3. Solar-compatible, suitable for reheating

    Solar-compatible, suitable for reheating

Installation video

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