E-compact instantaneous water heater set
CEX-U / EAK

Energy efficiency class A

(Scale: A+ to F)

CEX-U/EAK: 11/13.5 kW, 400 V

Technical data
Downloads
Accessories

CEX-U / EAK is used here.

Kitchen sink

Precise to the degree and comfortable

Product innovation
With its electronic control, the CEX-U together with the EAK tap ensures an energy-efficient hot water supply. The water is heated directly to the preset temperature as it flows through. The temperature is selected at the touch of a button via the LED control panel with two fixed value buttons, which are factory-set with 35

Electronically controlled under-sink instantaneous water heater as a set with the EAK unpressurised single-lever mixer tap
Sensor button control panel with LED display for precise temperature input between 20 °C and 60 °C
Two programme buttons for individual fixed values, activatable temperature limit and operating displays
Single-lever sink mixer tap with side operating lever, 20 cm swivel pipe spout and three ⅜-inch flexible hoses
Easy installation under the kitchen sink thanks to small dimensions and external ⅜-inch water connections
With mains connection cable for a 3-phase cooker junction box
Temperature accurate to the degree thanks to TWIN TEMPERATURE Control TTC up to the power limit
Bare wire heating system IES ensures a longer service life, less calcification and is efficient and easy to maintain
With Multiple Power System MPS, the maximum power consumption is set during installation: 11 or 13.5 kW
Can also be controlled via tablet or smartphone (from iOS 9 / Android OS 4.4) (this requires an FXE3 (C) wireless adapter and the "Smart Control" app)
Solar system compatible (inlet temperature ≤ 60 °C)
Dimensions (height × width × depth): 29.4 × 17.7 × 10.4 cm

Technical data

Data. Values. Facts.



CEX-U/EAK

Part number

Nominal power rating ¹⁾ (variably adjustable due to MPS) at 400 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 [3~ / PE 380–415 V AC] Permanent connection

Nominal current at 400 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.

2400-26391
11.0	13.5
1 (10)	1 (10)
G ⅜"	G ⅜"
4.8	5.8
2	2
5	5

16	20
1.5	2.5
60	60

IP 24	IP 24
1000	1000
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 (mixed water at flow rate >5 l/min)

3) Limited flow amount for optimal temperature increase

4) Suitable for reheating

Downloads

	Media type	Title	Date	Size
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 03.11.2023 > 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	03.11.2023	483 kB > download
Energy label CEX-U-Energielabel.pdf 13.02.2017 > download	Energy label	CEX-U-Energielabel.pdf	13.02.2017	220 kB > download
Product photo EAK-Produktfoto.jpg 28.09.2020 > download	Product photo	EAK-Produktfoto.jpg	28.09.2020	61 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
BIM CX3-CEX-U_BIM.rfa 11.05.2022 > download	BIM	CX3-CEX-U_BIM.rfa	11.05.2022	760 kB > download
BIM CX3-CEX-U_BIM.ifc 11.05.2022 > download	BIM	CX3-CEX-U_BIM.ifc	11.05.2022	2,0 MB > download

Accessories

EAK (included)

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

EAK: Part no. 1100-04430

Operating and installation instructionsEAK-GMA-de-en.pdf (1,22 MB)

FVS (included)

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

FVS: Part no. 89620

T-piece (included)

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

T-piece: Part no. 89610

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

Product information sheetAerators-PI-en.pdf (293 kB)

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

Product information sheetAerators-PI-en.pdf (293 kB)

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

Product information sheetAerators-PI-en.pdf (293 kB)

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

– ONLY FOR DEVICES MANUFACTURED AS OF 2022 – 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

Operating and installation instructionsFXS3-GMA-de-en.pdf (1,84 MB)

FXE 3 (C) extension (optional)

– ONLY FOR DEVICES MANUFACTURED AS OF 2022 – Bluetooth radio adapter for installation in the instantaneous water heater to connect the electric instantaneous water heater with the smartphone / tablet via app "Smart Control" or a CLAGE remote control. This extension is required if the units are not yet equipped with an FX 3 radio remote control.

FXE 3 (C) extension: Part no. 3200-34026

Operating and installation instructionsFXS3-GMA-de-en.pdf (1,84 MB)

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): 18×13×8cm

LAB: Part no. 82260