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E-comfort instant water heater
DEX Next S

E-comfort instant water heater DEX Next S

Energy efficiency class A

(Scale: A+ to F)

  • DEX Next S: 18/21/24/27 kW, 400 V

This is where the DEX Next S is used.

  1. Handwashbasin

    Handwashbasin

  2. Shower

    Shower

  3. Bath tub

    Bath tub

  4. Kitchen sink

    Kitchen sink

For your new wellness oasis.

The top device among the E-comfort instant water heaters meets very high comfort requirements.

The new DEX Next S for shower and bath impresses with state-of-the-art technology and durable materials. The compact design is resource-saving. The device is operated in a user-friendly manner via the e-paper display.

The integrated Bluetooth function allows the unit to be controlled by remote control, smartphone or tablet. The use of the app "Smart Control" facilitates the commissioning and maintenance of the instantaneous water heater.

Awards E-comfort instant water heater DEX Next S
  • Fully electronically controlled high-tech instantaneous water heater with real glass touch display and Bluetooth remote control for convenient and economical hot water supply to one or more tap(s)
  • Temperature always accurate to the degree between 20 °C and 60 °C thanks to TWIN TEMPERATURE Control TTC® and SERVOTRONIC® dynamic flow rate control
  • In the comfort zone between 35 °C and 43 °C, the temperature can be set in 0.5 degree increments
  • Bare wire heating system IES® ensures a longer service life, less calcification and is efficient and easy to maintain.
  • Function for thermal treatment with 70 °C for more hygiene
  • Particularly air-resistant heating system thanks to innovative heating duct arrangement
  • Multiple Power System MPS® determines the maximum power consumption during installation: 18, 21, 24 or 27 kW
  • Suitable for water-saving taps due to particularly low switch-on water quantity from 1.5 l/min thanks to innovative water flow technology
  • Integrated WLAN and Bluetooth® function for connection with modern voice control systems like Alexa, smartphone and tablet
  • Electronic safety system with air bubble detection, temperature and pressure switch-off and water stop function
  • Dimensions (height × width × depth): 46.8 × 23.9 × 9.6 cm

Technical data

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Data. Values. Facts.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
E-comfort instant water heater DEX Next S
Handwashbasin Shower Bath tub Kitchen sink      
DEX Next S
Part number
Nominal power rating 1) (variably adjustable due to MPS) at 400 V [kW]
Permissible operating pressure [MPa (bar)] 2)
Water connections (thread connections)
Hot water output at Δt = 28 K 3) [l/min]
Switch-on flow rate [l/min]
Maximum flow rate: automatic [l/min] 4)
Supply voltage [3~ / PE 380–415 V AC] Permanent connection
Supply voltage [3~ / PE 400 V AC] Permanent connection
Nominal current at 400 V [A]
Required cable diameter [mm²]
Maximum inlet temperature [°C]
Solar-ready 5)
Protection class
Specific water resistance at 15 °C [Ωcm] ≥
Weight filled with water [kg], approx.
3200-36450
18 21 24 27
1 (10) 1 (10) 1 (10) 1 (10)
G ½" G ½" G ½" G ½"
9.2 10.7 12.3 13.8
1.5 1.5 1.5 1.5
 
     
26 30 35 39
4.0 4.0 6.0 6.0
70 70 70 70
IP 25 IP 25 IP 25 IP 25
1100 1100 1100 1100
4.5 4.5 4.5 4.5

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

2) Also approved for pressureless operation

3) Temperature increase e.g. from 12 °C to 40 °C, mixed water

4) Depending on line pressure, selected temperature and inlet temperature

5) Suitable for reheating

Downloads

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Media type Title Date Size

Product information sheet

DEX-Next-S-PI-en.pdf

23.03.2022

> download
Product information sheet DEX-Next-S-PI-en.pdf 23.03.2022 887 kB
> download

Operating and installation instructions

DEX-Next-S-Online-GMA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sr.pdf

17.05.2022

> download
Operating and installation instructions DEX-Next-S-Online-GMA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sr.pdf 17.05.2022 12 kB
> download

Quick guide

DEX-Next-S-KA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sr.pdf

26.04.2022

> download
Quick guide DEX-Next-S-KA-de-en-fr-nl-pt-es-pl-ru-cs-sk-bg-sr.pdf 26.04.2022 3,9 MB
> download

Image-only instructions

DX3-400V-BiA.pdf

16.05.2022

> download
Image-only instructions DX3-400V-BiA.pdf 16.05.2022 2,0 MB
> download
  Older versions> 
 Image-only instructionsDSX-Touch-DFX-Next-BiA.pdf> download> download
  Further versions on request 

Installation accessories

DX3-Montageschablone-de-en-fr-nl-pl-cs-sk-pt-es-sv.pdf

13.11.2018

> download
Installation accessories DX3-Montageschablone-de-en-fr-nl-pl-cs-sk-pt-es-sv.pdf 13.11.2018 370 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

DEX-Next-S-Energielabel_2022.pdf

16.05.2022

> download
Energy label DEX-Next-S-Energielabel_2022.pdf 16.05.2022 219 kB
> download

ErP product sheet

9120-96xxx-DX3-DEX-Next-S-ErP-Produktdatenblatt.pdf

17.05.2022

> download
ErP product sheet 9120-96xxx-DX3-DEX-Next-S-ErP-Produktdatenblatt.pdf 17.05.2022 566 kB
> download

CE Conformity

CE-Konformitaetserklaerung-nach-RED+RoHS3-DX3-2021-10.pdf

05.11.2021

> download
CE Conformity CE-Konformitaetserklaerung-nach-RED+RoHS3-DX3-2021-10.pdf 05.11.2021 1,3 MB
> download

Accessories

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FX 3

FX 3 (included)

Additional remote control for convenient temperature adjustment of the instantaneous water heater over a distance of approx. 10 metres in the building. Secure, Bluetooth® wireless transmission, stepless temperature selection via two keys, two fixed value keys and an LCD display, magnetic wall bracket and batteries (included). IP 20. Dimensions (H × W × D): 5.8 × 12.5 × 1,9 cm

FX 3: Part no. 3200-34021

RDX 3

RDX 3 (optional)

If required, the universal mounting frame RDX 3 is available as an accessory, with which the electrical connection can be made at any point behind the device. The IP protection class of the device with RDX 3 is IP24. With electrical wiring and pipe extensions. For difficult installation conditions, e.g. replacement of a flow heater with different connections. Compensates for tile projections or wall unevenness. Installation only by a specialist.

RDX 3: Part no. 3200-36100

UDX

UDX (optional)

Pipe assembly for undersink installation with water connections, top flush-mounted G ⅜ inch (basic mounting kit RDX required).

UDX: Part no. 3200-34110

VDX

VDX (optional)

Pipe assembly for offset installation or reversed water connections when exchanging gas water heaters (basic mounting kit RDX required).

VDX: Part no. 3200-34120

Interesting features.

  1. Smart Control-ready

    Smart Control-ready

  2. Bluetooth remote control included

    Bluetooth remote control included

  3. Solar-compatible, suitable for reheating

    Solar-compatible, suitable for reheating

Similar products:

E-comfort instant water heater DSX Touch
DSX Touch: 18/21/24/27 kW, 400 V
E-comfort instant water heater DEX Next
DEX Next: 18/21/24/27 kW, 400 V