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E-compact instant water heater
CDX-U

E-compact instant water heater CDX-U

Energy efficiency class A

(Scale: A+ to F)

  • CDX 7-U: 6.9 kW, 400 V
  • CDX 11-U: 11 kW, 400 V

This is where the CDX-U is used.

  1. Kitchen sink

    Kitchen sink

  2. Washstand

    Washstand

  3. Double washbasin

    Double washbasin

Convenient under the kitchen sink.

Product innovation
Although this E-compact instant water heater has no user controls, it operates with reliable electronics. The heating power is controlled automatically depending on flow rate and inlet temperature. During daily use, the temperature is set at the tap.

  • Electronically controlled instant water heater in compact design and without user controls for installation under the sink
  • Automatic heating adjustment based on flow rate and inlet temperature
  • The maximum outlet temperature is factory-set to 50 °C, temperature setting as usual by mixing cold water at the tap
  • Easy installation under the sink facilitated by small dimensions and external ⅜" water connectors for unvented and vented installation
  • With power cable for permanent electrical connection
  • With the load shedding module (available as an accessory), the instant water heater can be operated along with the electric cooker at the cooker terminal outlet box.
  • 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 CDX 7-U E-compact instant water heater CDX 11-U
Kitchen sink Washstand Double washbasin Kitchen sink Washstand Double washbasin
CDX 7-U CDX 11-U
Part number
Nominal power rating at 400 V [kW]
Maximum operating pressure [MPa (bar)]
Water connections (thread connections)
Hot water output at Δt = 33 K 1) [l/min]
Switch-on flow rate [l/min]
Maximum flow rate 2) [l/min]
Supply voltage [3~ / PE 380–415 V AC] Permanent connection
Nominal current at 400 V [A]
Required cable diameter [mm²]
Maximum inlet temperature [°C]
Protection class
Specific water resistance at 15 °C [Ωcm] ≥
Weight filled with water [kg], approx.
2400-26607 2400-26613
6.9 11.0
1 (10) 1 (10)
G ⅜" G ⅜"
3.0 4.8
2 2
4 5
10 16
1.0 1.5
30 30
IP 24 IP 24
1000 1000
2.7 2.7

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

2) Limited flow amount for optimal temperature increase

Downloads

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Media type Title Date Size

Product information sheet

CDX-U-PI-en.pdf

04.01.2022

> download
Product information sheet CDX-U-PI-en.pdf 04.01.2022 689 kB
> download

Operating and installation instructions

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

27.04.2021

> download
Operating and installation instructions CX3-CDX-GMA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sv-el.pdf 27.04.2021 2,3 MB
> download

Image-only instructions

CX3-400V-Bilderanleitung-Untertisch.pdf

15.09.2021

> download
Image-only instructions CX3-400V-Bilderanleitung-Untertisch.pdf 15.09.2021 883 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

CDX7-U-Energielabel.pdf

09.02.2017

> download
Energy label CDX7-U-Energielabel.pdf 09.02.2017 220 kB
> download

Energy label

CDX11-U-Energielabel.pdf

13.02.2017

> download
Energy label CDX11-U-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

CDX-U-CX3-Produktfoto-links.jpg

27.12.2021

> download
Product photo CDX-U-CX3-Produktfoto-links.jpg 27.12.2021 68 kB
> download

Product photo

CDX-U-CX3-Produktfoto-rechts.jpg

27.12.2021

> download
Product photo CDX-U-CX3-Produktfoto-rechts.jpg 27.12.2021 404 kB
> download

Product photo

CDX-U-CX3-Produktfoto.jpg

27.12.2021

> download
Product photo CDX-U-CX3-Produktfoto.jpg 27.12.2021 45 kB
> download

BIM

CX3-CDX-U_BIM.ifc

11.05.2022

> download
BIM CX3-CDX-U_BIM.ifc 11.05.2022 1,7 MB
> download

BIM

CX3-CDX-U_BIM.rfa

11.05.2022

> download
BIM CX3-CDX-U_BIM.rfa 11.05.2022 1012 kB
> download

Accessories

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FVS

FVS (included)

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

FVS: Part no. 89620

T-piece

T-piece (included)

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

T-piece: Part no. 89610

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

(optional)

: Part no. 1100-04235

BBW

BBW (optional)

Accessories for sensor armature for power supply with one battery 6  V Lithium CRP 2. cable length approx. 10  cm, Ø 6  cm

BBW: Part no. 89516

SNG

SNG (optional)

Accessories for sensor armature EKE: power supply unit 1~ / N / PE 230  V AC / 6  V DC. Cable length approx. 70  cm

SNG: Part no. 89484

LAB

LAB (optional)

Load shedding module (electrical installation kit) with pre-installed cables, contactor and load shedding relay, for joint connection of an instant water heater with an output ≤ 13,5 kW and an electromechanical cooker at a cooker terminal outlet box, if no separate outlet is available for the instant water heater. IP 55. Dimensions (H × W × D): 18 × 13 × 8 cm

LAB: Part no. 82260

Interesting features.

  1. Space-saving

    Space-saving

  2. Instantly at the right temperature

    Instantly at the right temperature

  3. More hygiene

    More hygiene

  4. Environmentally friendly

    Environmentally friendly

  5. Water-saving

    Water-saving

  6. Short water paths

    Short water paths

Installation video

Similar products:

E-compact instant water heater CEX-U
CEX-U: 11/13.5 kW, 400 V