CLAGE CEX 9-U E-Compact Instant Water Heater Instruction Manual

CLAGE CEX 9-U E-Compact Instant Water Heater

 Description of the appliance

The instantaneous water heater CEX 9-U / CEX 9 is an electronically controlled, pressure-resistant water heater for a decentralized hot water supply to one or more outlets. Its electronic control regulates the heating 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 keep- ing it constant in case of pressure fluctuations. The required outlet temperature can be entered via keypress within a range between 20 °C and 55 °C and can be read off the digital display. The maximum inlet temperature can be up to 60 °C so that operation in connection with e.g. solar heating systems is possible.

How to use

As soon as you open the hot water tap, the instantaneous water heater switches on auto matically. When the tap is closed, the appliance automati-cally switches off.

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 the temperature is set below 20 °C with key the display shows “–“ and the appliance switches off the heating function.  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 dis-played (fig. A2). The factory setting for programme is 35 °C and for pro-gramme it is 48 °C. You can assign your own settings for the programme keys:  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).

Temperature limitation
This instantaneous water heater is equipped with an optional temperature limiting function. This scalding protection is deactivated in the factory set- ting.

•  Switch on: Select the limit tempe ra ture, then press and simul-taneously for at least 3 sec. The dis play briefly confirms the activation by “HI“ (fig. A4).•
• Switch off: press program key and simultaneously for at least 3 sec. The display briefly confirms the deactivation by “–“ (fig. A5).

Note: By activation of the temperature limit also the programme keys are affected. Therefore, the fixed values of the programme keys must be checked after changing the temperature limitation.
Reset to factory setting

All factory settings can be recalled:

•  Press and simultaneously. The display now counts backwards from “10“ to “00“ in second intervals. The appliance is reset at value “00“ – if you stop pressing the keys earlier, you will cancel the process (fig A6).

Top-up heating
When operating with preheated water (e.g. with solar systems), ensure that the maximum inlet temperature is not exceeded. If the inlet temperature exceeds the preselected setpoint during operation with preheated water, no power is delivered and the decimal point of the display flashes.

ECO mode
The symbol shows that the appliance works in an energy-saving mode i.e. the momentary energy consumption is subject to the selected temperature and to the flow rate in the energy-saving mode.

Power limit
If the full output of the instantaneous water heater is not sufficient to heat the tapped water quantity, this is indicated by the decimal point lighting up (e.g. in winter when several taps are open at the same time). By reducing the hot water flow, the dot stops lighting up as the power is again sufficient to reach the set temperature.

Venting after maintenance work
This instantaneous water heater features 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.

1.  Disconnect the instantaneous water heater from the mains (e.g. via deactivating the fuses).
2.  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.
3.  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.
4.  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.
5.  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 showerheads) should be unscrewed and cleaned at regular intervals. Every three years, the electrical and plumbing components should be inspected by an authorized professional in order to ensure the proper functioning and operational safety at all times.

 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. Your product was manufactured from high-quality, reusable materials and components. Please respect in case of discarding that electrical devices should be disposed of separately from household waste at the end of their service life. Therefore, please take this device to a municipal collection point that returns used electronic devices to the recycling system. Disposing of it correctly will support environmental protection and will prevent any potential negative effects on human beings and the environment that could arise from inappropriate handling of these devices at the end of their service life. Please contact your local authority for further details of your nearest designated collection point or recycling site. Business customers: If you wish to discard equipment, please contact your dealer or supplier for further information.

 Trouble-shooting and service

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 the unnecessary expense of customer service assistance.ProblemCauseSolutionWater stays cold, digital display does not respondMaster fuse trippedRenew or activate fuseSafety pressure cut-out trippedContact customer serviceWater stays cold, digital display does respondSafety thermal cut-out tripped

or activate fuse
Safety pressure cut-out tripped| Contact customer service
Water stays cold, digital display does respond| Safety thermal cut-out tripped| Contact customer service

Display shows error message

| Control system has switched off| Switch fuse off and on. If “ Er “ still flashes 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 a specialist
Selected temperature is not reached, decimal point appears| Water flow rate too high| Reduce water flow rate at the tap
Selected temp. is not reached, decimal point does not appear| Cold water has been added via the tap| Tap hot water only; set tempera- ture for use
Decimal point flashes| Inlet temperature exceed- ing nominal temperature| Reduce inlet temperature
Appliance heats, the display does not light| Display plug not properly connected| Let fix correct position of display plug by customer service

Overview

 Technical specifications

Required spec. water resistance @ 15 °C

Spec. electrical conductivity

| ****

≥ 1100 Ωcm

≤ 90.9 mS/m

Inlet temperature| ≤ 60 °C
Flow rate to switch on – max. flow rate| 2.0 – 5.0 l/min 2)
Pressure loss| | 0,2 bar at 2,5 l/min| 1,3 bar at 9,0 l/min 3)|
Temperature choice| 20 °C – 55 °C
Water connection| G ½”
Weight (when filled w. water)| 2.7 kg
VDE class of protection| I
Type of protection| IP24| IP25
Type of safety| ****

1.  Maximum cable cross section: 10 mm2
2.  Flow rate limited to achieve optimum temperature rise
3.  Without flow regulator
4.  Dimensions

 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 appli-ance to frost.
•  The CEX 9-U is designed for undersink installation and has to be installed with water connectors upward. The connection can be either pressure-tight (fig. C2) or pressureless (fig. C3).
•  The CEX 9 is intended for wall mounting and must be installed vertically with water connections at the bottom. The connection can be made via a wall fitting (fig. C4) or directly surface-mounted to the mains (fig. C5 & C6).
•  The CEX 9-U corresponds to protection class IP 24, the CEX 9 corre-sponds to protection class IP25.
•  In order to avoid thermal losses, the distance between the instantaneous water heater and the tapping point should be as small as possible.•
• For maintenance work, a shut-off valve should be installed in the supply line. The appliance must be accessible for maintenance work.•
• Copper or steel connecting pipes may be used. Plastic pipes may only be used if they conform to DIN 16893, Series 2. The hot water pipes must be thermally insulated.
•  The water pipes must not exert any mechanical force on the water con-nections of the instantaneous water heater during installation and opera-tion. If this cannot be guaranteed due to the installation conditions, we recommend the use of flexible connections.
•  The specific resistance of the water must be at least 1100 Ωcm at 15 °C. The specific resistance can be asked for with your water distribution company.

Mounting the appliance

1.  Thoroughly rinse the water supply pipes before installation to remove soil-ing from the pipes.
2.  Hold the appliance on the wall, and mark the drill lines at top and bot-tom, right and left, corresponding to the small notches at the edge of the appliance hood (see fig. D2). The alignment template (located on the pull-out pages in the middle of this manual) may be used for this purpose alternatively.
3.  Connect the top and bottom marks vertically with each other (A–A).
4.  Connect the right and left marks horizontally with each other (B–B).
5.  The intersections of these lines are the drill points.
6.  Drill the holes using a 6 mm drill. Insert the included dowels and screws. The screws have to protrude 5 mm.
7.  Hang up the appliance into the rear hanging openings until it clicks into place.

Installing the appliance

1.  Attach the water connection pipes to the appliance’s water connection. Use the ½ inch seals.
2.  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.

Electrical connection

Only by a specialist!Please observe:

•  e.g. VDE 0100
•  The installation must comply with current IEC and national local regula-tions 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)

1.  Electronic circuitry
2.  Heating element
3.  Safety pressure cut-out
4.  Connecting terminal
5.  Safety thermal cut-out

Structural prerequisites

•  The appliance must be installed via a permanent connection. Heater must be earthed! Maximum cable cross section: 610 mmmm2.2.
•  The electric wiring should not be injured. After mounting, the wiring must not be direct accessible.
•  An all-pole disconnecting device (e.g. via fuses) with a contact opening width of at least 3 mm per pole should be provided at the installation end.
•  To protect the appliance, a fuse element must be fitted with a tripping current commensurate with the nominal current of the appliance.

Electrical connection

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

1.  Dismantle off the power cable so that you can insert the cable with the cladding through the water splash protection sleeve up to the cord grip into the appliance (fig. E2).
2.  Lead the cable through the water splash protection sleeve into the appli-ance so that one can securely fix the cladding of the cable with the cord grip. If necessary, use one of the three predetermined breaking points for the cable entry. The protective sleeve prevents water from entering the appliance alongside the connection line. The protection sleeve has to be used!
3.  Mount the cord grip. The cord grip must be used!
4.  Strip the cables and plug them in the connecting terminals according to the wiring diagram. The appliance must be earthed (fig. E1).
5.  After successful electrical connection, fit the hood of the unit. Make sure not to jam any cables between the appliance hood and the base part of the appliance (fig. E3).

Initial operation

Before making the electrical connec tion, fill the mains and the appliance with water by carefully opening and closing the hot water tap in order to vent completely.
To ensure a maximum flow, remove any existing aerator from the faucet. Flush the warm and cold water pipes each at least for one minute.
After every draining (e.g. after work on the plumbing sys tem or following repairs to the appli ance), 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, reset the cut-out (fig. F1).

Selection of power rating

Only by authorized 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 ope ration mode.
The maximum allowable power rating at installation site de pends on the local situation. It is impe rative to observe all data shown in the table “Technical specifications“, in particular the required cable size and fuse protection for the electrical connec tion. Moreover, the electrical installation must comply with the statutory regulations of the respective country and those of the local elec tricity supply company (Germany: DIN VDE 0100).

1.  Switch on the power supply to the appliance. The digital display on the appliance must light up.

2.  When switching on the supply voltage for the first time, the value
   “88” flashes in the display. If not, please carefully read the note “Reinstallation”.

3.  Select the maximum allowable power rating depending on the local situa-tion via the up and down keys: 6,6 or 8,8 kW.

4.  Press key to confirm the setting. The appliance starts operating.

5.  Mark the set power rating on the rating plate.

6.  Open the hot water tap. Check the function of the appliance.

7.  After having set the maximum allowable power rating, the heating ele-ment will be activated after approx. 10 – 30 seconds of water flow.

8.  Explain the user how the instantaneous water heater works and hand over the operating instructions.

9.  Fill in the guarantee registration card and send it to the after-sales service or use the online registration.

Reinstallation
In case the appliance will be commis sioned again under different installation conditions than during its initial ope ration, it may be necessary to adapt the maximum power rating. A temporary short-circuit of the two pins, e.g. with a screwdriver acc. to EN 60900 (see fig. F2), will reset all heater para meters to works setting and lock the heating. Value “88“ flashes in the display until the maximum power rating has been selected. This condition will maintain when activating and deactivating the supply voltage.

Shower application
The water heater’s temperature must be limited to 55 °C, if it is connected to a shower. The service menu parameter “Temperature Limit“ (“tL”) must be set to a value less or equal 55 °C, in consultation with the customer and the lock level must be activated. When the device is operated with preheated water, it must be ensured that this temperature is limited to 55 °C as well.

Lock level
The operating mode of the appliance can be restricted. The service menu can be used to configure the appliance.

Activation of the lock level

1.  Set required lock level in the service menu (refer to chapter “Service menu” in this installing instructions).
2.  Disconnect the appliance from the power supply (e.g. by switching off the fuses).
3.  Move the jumper on the power electronics from pin 2 to pin 1 (see f(see figurig. Fe3))..
4.  Put the appliance into operation again.

Deactivation of the lock level

1.  Disconnect the appliance from the power supply (e.g. by switching off the fuses).
2.  Move jumper from pin 1 to pin 2.
3.  Put the appliance into operation again

Service menu

• The service menu offers an overview of system parameters and is used for diagnostics.
• Press key and key simultaneously for at least 2 seconds to call up the service menu, the display confirms by “FL” and by a flashing point. Using the keys and , you can switch between the individual menu items.
• Press key to see the value of the currently selected menu. The value flash-es in the display. (The values of some menus can be switched over by using the keys and ). You will get back to the drop-down-menu when pressing key again. With key you will get back to the standard display (nominal value). After two minutes without any key stroke the system automatically switches back to the standard display (fig. E1)..

Individual menu items as follows:

“FL“: Flow
Indication of current flow rate given in l/min.

“Po“: Power
Indication of current power consumption (kW).

“t1“: Temp in
Indication of inlet temperature (°C).

“t2“: Temp out
Indication of outlet temperature (°C).

“CA“: Control value
Indication of calibration value of the control system. Regular range: 40 – 60.

“PL“: Power limit
Indication of the current maximum power rating (kW) of the appliance.

“Er“: Diagnostics
Indication of the last ten diagnostic messages.
The error code is indicated by the first displayed value after pressing key (refer to “Abstract for Trouble-Shooting & Diagnostics” in the hood). By using the keys and the last 10 error codes are displayed chronologically. Thereby the display indicates in turns the error numbers from “0” to “9“ and the corresponding error. The last error will be recorded at position “0” and the former ones each shifted 1 position backwards.

“LL“: Lock level

• The operating mode of the appliance can be restricted.
• Setting Options:
• “0” no restriction (factory setting)
• “1” factory reset via key (countdown) not possible, parameters can be seen, but not
• be modified in the setup menu
• “2” same as “1”, additionally the setup menu cannot be opened
• “3” same as “2” additionally nominal value memory 1 and 2 not changeable
• “4” same as “3”, additionally nominal value not changeable

Note: When setting 1, 2, 3 or 4 was chosen, the system parameters can no longer be modified in the service menu. In order to modify these system parameters, it is necessary to remove the jumper on the power electronics, as specified in the chapter “Deactivation of the lock level”.

“nr“: Software version
Information about installed software version.

“rS“: Received strength
(with wireless module only) Information about the current signal quality of the remote control as percent-age. Depending on the distance between remote control and water heater the value varies between 10 % and 100 %.

“tL”: Temperature limit
The maximum settable temperature can be reduced to any value within the temperature limit. The Lock Level must be activated by placing the jumper to enable the limita-tion.

“IIC“: Signal
Information about the quality of the radio contact when a diagnostic display is connected.

References

• Gasvrij wonen en werken met elektrisch verwarmen
• Домашняя страница · Проточный водонагреватель с электронным управлением, горячая вода и многое другое. · CLAGE.com/ru
• Startseite · Durchlauferhitzer, warmes Wasser und mehr! · CLAGE.de
• Homepage · Doorstroomverwarmers, warm water en meer! · CLAGE.nl
• Strona główna · Przepływowy podgrzewacz wody, ciepła woda i inne! · CLAGE.pl
• Prietokové ohrievače vody CLAGE | KAMA.sk
• Clage S.A.S France | Service après-vente des produits CLAGE - SANISELF
• Distribución y Fabricación de equipos Ventilación, Calefacción, Climatización y Energías Renovables
• Zander & Ingeström - Ledande inom flödes- och värmeteknik

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