CLAGE ISX Module Instant Water Heater User Guide

: June 1, 2024
: CLAGE

Table of Contents

Registration
Operation Instruction
Installation instruction
Customer Support
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

CLAGE ISX Module Instant Water Heater

CLAGE ISX Module Instant Water Heater

The documents supplied with the device must be stored carefully.

Registration

Register your device online on our website and benefit from our services under warranty.

Your full details help our customer service process your request as fast as possible.

For online registration, just follow the link below or use the QR code with your smartphone or tablet.

https://partner.clage.com/en/service/device-registration/

Operation Instruction

Note: Carefully read the enclosed safety instructions through in full before the appliance is installed, put into service and used and follow them in the further steps and during use!

Description of the appliance

The E-module instant water heater ISX is a fully electronically controlled instantaneous water heater with e-paper display remote control for a convenient and efficient water supply to one or more tap outlets.

Its electronic control regulates the power consumption depending on the selected outlet temperature, the respective inlet temperature and the flow rate, thus reaching the set temperature exactly to the degree and keeping it constant in case of pressure fluctuations. The required outlet temperature can be entered via the Bluetooth® remote control within a range between 20 °C and 60 °C and can be read off that e-paper display. Alternatively, the appliance can be conveniently controlled via the CLAGE app with a smartphone or tablet.

The inlet temperature can be up to 70 °C so that operation in connection with reheating, e.g. in solar systems, is possible.

It is possible to use the instantaneous water heater in combination with an external load shedding relay for electronically controlled instantaneous water heaters (refer to installing instructions).

As soon as you open the hot water tap, the instantaneous water heater switches on automatically. When the tap is closed, the appliance automatically switches off.

Simplified EU Declaration of Conformity

CLAGE GmbH hereby declares that this device complies with Directive 2014/53/EU. The complete text of the EU Declaration of Conformity is available at the following internet address: www.clage.com/downloads

How to use

Temperature setting

You can set the required temperature gradually to a lower or higher value with the keys and (fig. A1).

The temperature changes by 1°C, in the convenience zone between 35 °C and 42°C by 0.5 °C, if key is pressed shortly one time. Pressing a key for a longer time changes the temperature continuously.

Note: If temperature is set below 20 °C with key the display shows “–“ and the appliance switches off the heating function.

Note: If the water heater supplies a shower, the maximum temperature was reduced during initial operation. This limitation cannot be exceeded.

Programme buttons

The two programme buttons allow to quickly select the preset temperature. When pressing a programme key, the preset temperature is selected and displayed (fig. A2). The factory setting for programme ➀ is 35 °C and for programme ➁ it is 48 °C. You can assign your own settings for the programme keys:
Operation Instruction

Prolonged pressing of the programme key stores the previously selected temperature. The display changes from ”P1” or “P2“ to the newly stored temperature value. This newly set temperature is now available to you each time you press the corresponding program key (fig. A3).

Supplementary information

For further informations please use the online operation and installation instruction. Please follow the link below or use the QR code via smartphone or tablet.

https://www.clage.de/links/gma/ISX-GMA-9120-34488

Venting after maintenance work

This instantaneous water heater features an automatic air bubble protection to prevent it from inadvertently running dry. Nevertheless, the appliance must be vented before using it for the first time. Each time the appliance is emptied (e.g. after work on the plumbing system, if there is a risk of frost or following repair work), the appliance must be re-vented before it is used again.

Disconnect the instantaneous water heater from the mains (e.g. via deactivating the fuses).
Unscrew the jet regulator on the outlet fitting and open the cold water tap valve to rinse out the water pipe and avoid contaminating the appliance or the jet regulator.
Open and close the hot water tap until no more air emerges from the pipe and all air has been eliminated from the water heater.
Only then should you re-connect the power supply again (e.g. via activating the fuses) to the instantaneous water heater and screw the jet regulator back in.
The appliance activates the heater after approx. 10 seconds of continuous water flow.

Cleaning and maintenance

Plastic surfaces and fittings should only be wiped with a damp cloth. Do not use abrasive or chlorine-based cleaning agents or solvents.
For a good water supply, the outlet fittings (e.g. jet regulators and shower heads) should be unscrewed and cleaned at regular intervals. Every three years, the electrical and plumbing components should be inspected by an authorised professional in order to ensure proper functioning and operational safety at all times.

Remote control

The ISX can also be controlled via the supplied FX Next Bluetooth remote control as an alternative to operation on the unit.

For information on logging on to the instantaneous water heater and commissioning, please refer to the enclosed FX Next Quick Start Guide.

Note: Complete instructions for the Smart Control remote control and app.

For further informations please use the online operation and installation instruction. Please follow the link below or use the QR code via smartphone or tablet.

https://www.clage.de/links/gma/ISX-GMA-9120-34488

Modbus

Via a Modbus interface, the ISX instantaneous water heater can be integrated into the building technology via Modbus lines. Various functions can be controlled and operating data can be read out.

For further informations please use the online operation and installation instruction. Please follow the link below or use the QR code via smartphone or tablet.

https://www.clage.de/links/gma/ISX-GMA-9120-34488

https://github.com/clage-gmbh/clage_modbus

Troubleshooting and service

Repairs must only be carried out by authorised professionals.

If a fault in your appliance cannot be rectified with the aid of this table, please contact the service organisation of your importer or the Central Customer Service Department. Please have the details of the type plate at hand.

This instantaneous water heater was manufactured conscientiously and checked several times before delivery. Should malfunctions nevertheless occur, it is usually only due to a bagatelle. First attempt to switch the house fuses off and on again in order to reset the electronics. Next, try to remedy the problem with reference to the following table. In doing so, you will avoid unnecessary expense of customer service assistance.

ISX

Problem| Cause| Solution
Water stays cold, remote control cannot establish a connection| Master fuse tripped| Renew or activate fuse
Safety pressure cut-out tripped| Contact customer service
Flow rate of hot water too weak| Outlet fitting dirty or calcified| Clean shower head, jet regulator or sieves
Fine filter dirty or calcified| Let clean fine filter by customer service
Water flow is limited| Deactivate flow limit
Selected temperature is not reached| Water flow rate too high| (Re)activate motor-driven valve in the menu “Flow Limit”
Cold water has been added via the tap| Tap hot water only; set temperature, check outlet temperature
App can’t find the ISX| Master fuse tripped| Renew or activate fuse
Out of Wi-Fi / Bluetooth range| Replace the tablet / smartphone near the access point (router or ISX)
Wi-Fi deactivated (air plane mode)| Activate Wi-Fi at tablet / smartphone settings
Tablet / smartphone is connected to another Wi-Fi as the ISX| Change to the same Wi-Fi as the ISX
Sensor keys does not respond correctly or only sporadically| Display is wet| Dry display by wiping it with a soft cloth
Each time you press a key, a symbol appears| Key lock active| Press and and hold for approx. 5 seconds
The display alternately shows P1 and 00| Operation lock active| Enter the correct PIN
FX Next Remote control

Problem| Cause| Solution
Symbol “battery” lights| Flat batteries| Insert two new type AA batteries in the remote control
Appliance does not response to the remote control| Transmission range exceeded| Place the remote control closer to the appliance, press key
Remote control does not respond correctly or only sporadically| Display glass is wet| Dry display by wiping it with a soft cloth
The error symbol appears in the display of the app/remote control .| The appliance has detected an error.| Switch fuses off and on. If symbol “wrench” is still indicated, contact customer service

Environment and recycling

This product was manufactured climate neutrally according to Scope 1 + 2. We recommend the purchase of 100% green electricity to make the operation climate neutral as well.

Disposal of transport and packaging material: For smooth transport your product is carefully packed. The disposal of the transport material is carried out by the specialist tradesman or the specialist trade. Separate the sales packaging according to materials separated according to materials via one of the dual systems in Germany.

Disposal of old products: Your product was manufactured from high-quality, reusable materials and components. Products marked with the crossed-out wheeled bin symbol must be disposed of separately from household waste at the end of their service life. Therefore, take this product to us as the manufacturer or to one of the municipal collection points that recycle used electronic devices. This proper disposal serves to protect the environment and prevents possible harmful effects on humans and the environment that could result from improper handling of the products at the end of their service life. For more detailed information on disposal, please contact your nearest collection point or recycling centre or your local council.

Business customers: If you wish to discard equipment, please contact your dealer or supplier for further information.

For disposal outside Germany, please also observe the local regulations and laws.

Installation instruction

Overview

See figure C1.

Pos.	Function
1	Bottom part
2	Safety thermal cut-out (STB)
3	Thermal sensor
4	Non-return valve
5	Flow sensor
6	Heating element
7	Safety pressure cut-out (SDB)
8	Outlet pipe
9	Hot water connection
10	Interface board
11	Modbus connector
12	Leakage sensor
13	Display
14	ISX hood
15	Connecting pipe
16	Power circuit board cover
17	Servomotor electronics
18	Power circuit board
19	Transmission module
20	Servomotor
21	Connecting terminal
22	Strain relief
23	Inlet pipe
24	Fine filter
25	Cold water connection

Technical specifications

Type|

ISX 13

|

ISX

---|---|---
Energy efficiency class|

A *)

Rated capacity / rated current|

11 kW..13.5 kW (16 A..20 A)

|

18 kW..27 kW (26 A..39 A)

Chosen capacity / current|

11 kW /16 A

| 9.9 kW / 15 A| 13.5 kW / 20 A| 12.2 kW / 19 A| 18 kW /26 A| 16.2 kW / 25 A| 21 kW /30 A| 19 kW /29 A| 24 kW /35 A| 21.7 kW / 33 A| 27 kW /39 A|

24.4 kW/ 37 A

Nominal voltage|

400 V

| 380 V| 400 V| 380 V| 400 V| 380 V| 400 V| 380 V| 400 V| 380 V| 400 V|

380 V

Electrical connection|

3~ / PE AC

Min. required cable size|

1.5 mm2

| 2.5 mm2| 4.0 mm2| 4.0 mm2| 6.0 mm2|

6.0 mm2

Hot water (l/min) 1) max. at ∆t = 28 K max. at ∆t = 38 K|

5.6
4.1

| 5.0
3.7| 6.9
5.1| 6.2
4.6| 9.2
6.8|

8.3
6.1

| 10.7
7.9| 9.7
7.2| 12.3
9.0| 11.1
8.2| 13.8
10.2|

12.5
9.2

Rated volume|

0.4 l

Rated pressure|

1.0 MPa (10 bar)

Connecting type|

pressure-resistant / pressure less

Heating system|

Bare wire heating system IES®

@ 15 °C:

Required spec. water resistance Spec. electrical conductivity

|

≥ 1100 Ωcm
≤ 90 mS/m

Inlet temperature|

≤ 70 °C

Required flow rate to switch on|

1.5 l/min – automatic 2)

Pressure loss|

0.08 bar at 1.5 l/min
1.3 bar at 9.0 l/min

Temperature range|

20 – 60 °C [70°C] 3)

Water connection|

G ½ inch

Weight (when filled with water)|

4.5 kg

Transmission and receiving frequency range Wi-Fi|

2.412 – 2.472 GHz (802.11b/g/n)

Transmission power Wi-Fi|

≤ 100 mW

Transmission and receiving frequency range Bluetooth|

2.4 – 2.4385 GHz

Transmission power Bluetooth|

≤ 8 mW

Radiation Bluetooth|

undirected

Transmission range Bluetooth|

10 meter incl. barrier

Modbus|

RTU/RS485

Transmission parameter Modbus|

19200 Bit/s (bd) 8/N/1

Address Modbus|

the last two digits of the serial number (for 00 = 100)

VDE class of protection|

I

Type of protection / safety| Symbols

Dimensions

Dimensions in mm (fig. D1)

Installation

The following regulations must be observed:

e.g. VDE 0100
EN 806
Installation must comply with all statutory regulations, as well as those of the local electricity and water supply companies.
The rating plate and technical specifications
Only intact and appropriate tools must be used

Installation site

Appliance must only be installed in frost-free rooms. Never expose appliance to frost.
The appliance is designed for wall mounting and must be installed vertically with water connections at the bottom.
Alternatively, the appliance can be installed horizontally with water connections on the left or hanging flat from the ceiling.
The unit complies with protection class IP21 and may only be installed in protection area 3 according to VDE 0100 part 701 (IEC 60364-7).
In order to avoid thermal losses, the distance between the instantaneous water heater and the tap connection should be as small as possible.
The appliance must be accessible for maintenance work.
Plastic pipes may only be used if they conform to DIN 16893, Series 2.
The specific resistance of the water must be at least 1100Ωcm at 15 °C. The specific resistance can be asked for with your water distribution company.
Do not install the device in the immediate proximity of metal surfaces to allow a reliable wireless connection and an optimal wireless range.
When mounted vertically or horizontally in a built-in cabinet, this must have a volume of at least 50 litres for ventilation purposes.
If the appliance is installed overhead or in a false ceiling, there must be an area with a volume of at least 300 litres for ventilation (e.g. 1m × 1m ×0.3m).
In addition, a distance of min. 5 cm must be maintained on at least two sides of the unit.
When using metallic covers in front of the appliance, a distance of min. 1cm to the control panel must be maintained.

Mounting the appliance

Thoroughly rinse the water supply pipes before installation to remove soiling from the pipes.
Hold the appliance on the wall, and mark the drill lines at top and bottom, right and left, corresponding to the small notches at the edge of the appliance hood (see fig. D2).

Important: If the water connection pipes are already firmly installed in their position, the sealing surface of the appliance connections must reach the sealing surface of the connection pipes so that the markings are at the correct height.
Connect the top and bottom marks vertically with each other (A–A) (fig. D3).
Connect the right and left marks horizontally with each other (B–B) (fig. D3).
The intersections of these lines are the drill points.
Drill the holes using a 6mm drill. Insert the included dowels and screws. The screws have to protrude 20mm (fig. D4).
Hook the appliance into the suspension openings and press down gently (fig. D5).
Then tighten all screws to secure the appliance against slipping (fig. D6). **

**

Connecting the water pipes

Screw the cold water pipe with union nut and the ½ inch gasket to the cold water connection of the appliance (fig. D6).
Screw the hot water pipe with union nut and the ½ inch seal to the hot water connection of the appliance (fig. D6).
Turn valve »a« to position »1« (fig. G1).

For further informations please use the online operation and installation instruction. Please follow the link below or use the QR code via smartphone or tablet.

https://www.clage.de/links/gma/ISX-GMA-9120-34488

Electrical connection

Only by a specialist!

Please observe:

e.g. VDE 0100
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!

Wiring diagram (fig. E1)

Installation instruction

Electronic circuitry
Heating element
Safety pressure cut-out
Connecting terminal
Safety thermal cut-out

Structural prerequisites

The appliance must be installed via a permanent connection.
The electrical cables must be in perfect condition.
On the installation side, an all-pole disconnecting device with a contact opening width of at least 3 mm per pole must be provided (e.g. via line circuit breaker).
For fuse protection, a circuit breaker must be used in accordance with the cable cross-section and the type of installation.
The cable cross-section must be dimensioned according to the rated device current and the type of cable routing.

Electrical connection

Check that the power supply is switched off prior to electrical connection!

Strip off approximately the last 7 cm of the inflow line »A1« (fig. E2).
Loosen the screw of the inspection flap and remove the flap.
Push the connection cable from below through the cable opening in the lower part of the housing (fig. E3) and fix it with the strain relief »A2«. The cable sheath must reach into the strain relief.
Strip the insulation from the individual wires and connect them to the terminals according to the wiring diagram (fig. E1). The appliance must be connected to the protective earth conductor.
Replace the inspection flap and fix it with the screw. If necessary, widen the break-out opening for the connection cable with a blunt tool.

Modbus connection (optional)

Loosen the screw of the inspection flap and remove the flap.
Cut out the opening for the Modbus cable in the inspection flap.
Strip approx. 3cm of the Modbus cable and fold the shielding »5« back over the sheath (fig. E4).
Strip the insulation from the individual wires (fig. E2) and connect the wires of both lines in pairs to the Modbus plug according to their function (fig. E4).
Insert the Modbus plug into the socket on the unit.
Fix the cable with the strain relief »B2« (fig. E3). The sheath and the shield must reach into the strain relief. The shielding of both cables must be fixed and connected by the strain relief.
Open the cut-outs in the inspection flap for the wiring with a blunt tool, replace the flap and fix it with the screw.

Note: Load shedding

For further informations please use the online operation and installation instruction. Please follow the link below or use the QR code via smartphone or tablet.

https://www.clage.de/links/gma/ISX-GMA-9120-34488

Initial operation

Vent the device according to the enclosed image manual.

After every draining (e.g. after work on the plumbing system or following repairs to the appliance), the heater must be re-vented in this way before starting it up again.

If the water heater cannot be put into operation, the temperature cut-out or the pressure cut-out
may have tripped during transport. If necessary, check that the power supply is switched off and
reset the cut-out (fig. F1 + F2)

Selection of power rating

Only by authorised specialist, otherwise lapse of guarantee!

Upon first connection of the appliance to the supply voltage, select the maximum power rating. Only after having set the power rating, the heater provides its standard operation mode.

The maximum allowable power rating at installation site depends on the local situation. It is imperative to observe all data shown in the table “Technical specifications”, in particular the required cable size and fuse protection for the electrical connection. Moreover, the electrical installation must comply with the statutory regulations of the respective country and those of the local electricity supply company (Germany: DIN VDE 0100).

Switch on the power supply to the appliance. The digital display on the appliance must light up.
When switching on the supply voltage for the first time, the value “21” flashes in the display. If not, follow the chapter “Reinstallation”.
Select with and the maximum allowable power rating depending on the local situation via sensor keys (18, 21, 24 or 27kW).
Select ➁ to confirm the setting.
Mark the selected power rating on the rating plate.
After having set the maximum allowable power rating, the heating element will be activated after approx. 10 – 30 sec of continuous water flow.
Open the hot water tap. Check the function of the appliance.
Explain the user how the instantaneous water heater works and hand over the operating instructions to the user.
Fill in the guarantee registration card and send it to the CLAGE After-Sales Service or use the online registration on our website (see also page 9).

Reinstallation

In case the appliance will be commissioned again under different installation conditions than
during its initial operation, it may be necessary to adapt the maximum power rating.

A temporary short-circuit of the two pins (see figure F3), e.g. with a screwdriver acc. to EN 60900, will reset all heater parameters to works setting and lock the heating. Value “21“ flashes in the display until the maximum power rating has been selected. This condition will maintain when activating and deactivating the supply voltage.
Installation instruction

Shower application

Press and hold ➀ and ➁ for two seconds and open the service menu.
Navigate to the item “ ” by tapping ➀ or ➁ .
Press and hold until the countdown has counted down to zero to activate the shower function.

When the appliance is operated with preheated water, it must be ensured that this temperature is limited to 55 °C as well.

Note: The function can only be deactivated by a specialist via a new start-up. This may only be done if a shower is no longer connected. All settings and statistical data will be lost.

Maintenance work

Maintenance work must only be conducted by an authorised professional.

Cleaning and replacing the filter strainer

The cold water connection of this instantaneous water heater is equipped with an integrated shut-off valve and a strainer. Soiling of the strainer may reduce the warm water output. Clean or replace the strainer as follows:

De-energize the instantaneous water heater (e.g. via deactivating the fuses) and prevent inadvertent reactivation of them.
Close the shut-off valve (a) in the cold water connection piece (position “0“ fig. G1).
Unscrew the screw plug (b) from the cold water connection piece and take out the strainer (c) (fig. G2).

Note: Residual water can leak
The strainer can now be cleaned or replaced.
After fitting of the clean strainer tighten the screw plug.
Slowly reopen the shut-off valve in the cold water connection piece (position “1“). Check all connections for leaks.
Vent the appliance by carefully opening and closing the affiliated warm water tap valve several times until air no longer emerges from the pipe.
Then switch on the power again (e.g. via activating the fuses)

Product data sheet

a	b	c	d	e
b.1	b.2			η **WH
%**	**AEC
kWh**	°C	L WA dB(A)	Q elec kWh

CLAGE

| ISX

ISX13

| 7V-270V-3X

7V-135V-3X

| S

XS

| A

A

| 38,2

39,3

| 482,3

469,3

| 60

60

| 15

15

| 2,225

2,148

Product data sheet in accordance with EU regulation

(a) Brand name or trademark, (b.1) Model, (b.2) Type, (c) Specified load profile,
(d) Energy-efficiency class, (e) Energy-efficiency, (f) Annual power consumption,
(g) Additional load profile, the appropriate energy-efficiency and the annual power consumption, if applicable, (h) Temperature setting for the temperature controller, (i) Sound power level, internal, (j) Daily power consumption.

Additional notes: All specific precautions for assembly, installation, maintenance and use are described in the operating and installation instructions. All data in this product data sheet are determined by applying the specifications of the relevant European directives.

Differences to other product information listed elsewhere may result in different test conditions. The power consumption was determined in compliance with standardized measurement method based on EU guidelines. The real energy consumption is pending on individual requirements.