Zip CLAGE CEX9-U Bedienungsanleitung

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Instantaneous Hot Water

Electronically controlled instantaneous water heater

CEX9-U: 27910 - 50 °C model

Instructions for the user

For 50°C models, the appliance delivers water not exceeding 50°C in accordance with AS3498

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

Contents

1. Safety instructions..............................................................................................3

2. Overview ..................................................................................................... 5

3. Technical data .................................................................................................6

4. Dimensions ................................................................................................... 7

5. Description of the appliance ..................................................................................... 7

6. Operation .....................................................................................................8

Temperature setting ............................................................................................ 8

Programme buttons............................................................................................. 8

Reset to factory setting .......................................................................................... 9

How to save energy............................................................................................. 9

ECO mode..................................................................................................... 9

Power limit .................................................................................................... 9

Top-up heating................................................................................................. 9

7. Maintenance work ............................................................................................10

Venting after maintenance work .................................................................................10

Cleaning and maintenance......................................................................................10

8. Troubleshooting and service ....................................................................................11

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

1. Safety instructions

Please read these instructions carefully before installing or using the appliance!

Keep the instructions handy with the appliance for future use!

Installation, initial operation and maintenance of this appliance must only be con-

ducted by an authorised professional, who will then be responsible for adherence to

applicable standards and installation regulations. We assume no liability for any dam-

ages caused by failure to observe these instructions.

• Do not use the appliance until it has been correctly installed and unless it is

in perfect working order.

• Do not remove the front cover under any circumstances before switching off

the mains electrical supply to the unit.

• Never make technical modifications, either to the appliance itself or the

electrical leads and water pipes.

• The appliance must be earthed at all times.

• Pay attention to the fact that water temperatures in excess of approx. 43 °C

are perceived as hot, especially by children, and may cause a feeling of

burning. Please note that the fittings and taps may be very hot when the

appliance has been in use for some time.

• The appliance is only suitable for domestic use and similar applications

inside closed rooms, and must only be used to heat incoming water from

the mains supply.

• The appliance must never be exposed to frost.

• The values stated on the rating plate must be observed.

• In case of malfunction, disconnect the fuses immediately. In case of leaks,

cut off the mains water supply instantly. Repairs must only be carried out by

the customer service department or an authorised professional.

• This appliance can be used by children aged 3years and above and persons

with reduced physical, sensory or mental capabilities or lack of experience

and knowledge if they have been given supervision or instruction concern-

ing use of the appliance in a safe way and understand the hazards involved.

Children shall not play with the appliance. Cleaning and user maintenance

shall not be performed by children without supervision.

• If the appliance is factory equipped with a power supply cable, it must be

replaced with an original spare cable from the manufacturer in case of dam-

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

To observe additionally for pressureless installation:

• The water outlet behind the devices must not be blocked, and the water

flow must not be restricted.

• The water outlet facilities, such as shower head, jet control and other outlet

unit, must be decalcified regularly. Deposits must be removed in regular

intervals.

• Only the fittings recommended by the manufacturer may be used.

• If the appliance is exclusively connected to a single shower, only the shower

heads recommended by the manufacturer may be used. No other fittings or

appliances which decrease the water flow to the shower may be installed.

age by an authorised technician in order to avoid any hazards.

• For appliances with direct connection, an all-pole disconnecting device

with a contact opening width of ≥3mm per phase must be provided at the

installation end, according to Australian wiring rules AS/NZ3000.

• The wall bracket must be secured with the supplied screws and dowels. The

appliance must be secured to the wall bracket. The appliance may only be

operated if it has been properly mounted on the wall bracket.

• The prescribed nominal pressure stated on the rating plate may not be

exceeded at any time.

• The required water resistance may not fall below the value stated on the

rating plate at any time.

1. Safety instructions

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

2. Overview

When ordering spare parts, please always specify the appliance model and serial number.

Parts in Bold Type are available as Spare Parts. Other parts are available on request

Pos. Part.-No. Description

1 Grommet

2 Connecting terminal

3 99394 Flow sensor

4 99385 Non-return valve

5 99398 PCB CEX9

6 99418 CEX control panel

7 Inlet pipe

8 CEX-U cover

Pos. Part.-No. Description

9 Inlet filter

10 Connection piece 1/2“

11 Safety thermal cut-out

12 99400 Thermal sensor set

13 Heating element incl. SDB

14 Bottom part

15 99397 Screws and dowels

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

3. Technical data

Model CEX9-U

Part no. 27910 - 50 °C model

Energy efficiency class A *)

Rated capacity (Rated current) 6.0 / 9.6 kW (27.3 / 40 A)

Chosen capacity (Chosen current) 6.6 kW (28.7 A) 8.8 kW (38.3 A)

Electrical connection 1/N/PE 220..240 V AC

Min. required cable size 3) see note 1)

Hot water (l/min)

max. at ∆t = 25 K 3.8 5.0

Rated volume 0.3 l

Rated pressure 1.0 MPa (10 bar)

Connecting type pressure resistant / pressureless

Heating system Bare wire heating system IES®

Required spec. water

resistance @ 15 °C

Spec. electrical conductivity

≥ 1100 Ωcm

≤ 90.9 mS/m

Inlet temperature ≤ 70 °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 – 50 °C

Water connection G ½"

Weight (when filled w. water) 2.7 kg

VDE class of protection I

Type of protection / safety IP24

*) The declaration complies with the EU regulation No812/2013

1) The cross sectional area of the connection cable must be in accordance with the power rating of the appliance and the specific requirements of AS/NZS 3000

2) Flow rate limited to achieve optimum temperature rise

3) Without flow regulator

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

4. Dimensions

Dimensions in mm

The instantaneous water heater CEX9-U is a electronically controlled, pressure-resistant water heater for a decentralised water sup-

ply to one or more tap connections.

Its electronic control regulates the power consumption depending on the selected outlet temperature, the respective inlet tempera-

ture and the flow rate, thus reaching the set temperature exactly to the degree and keeping it constant in case of pressure fluctua-

tions. The required outlet temperature can be entered on a keypad within a range between 20°C and 50 °C and can be read off the

digital display.

This appliance delivers water not exceeding 50°C in accordance with AS3498.

5. Description of the appliance

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

You can set the required temperature gradually to a lower or higher value with the

arrow keys and .

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 arrow key the display shows “--“

and the appliance switches off the heating function.

6. Operation

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.

Set temperature

–1 °C +1 °C

Select preset temperature

A1 A2

B1 B2

Store temperature

Press

≥ 3 sec

Display of new value (e.g. 43 °C)

Set required

temperature

(e.g. 43 °C)

4 3

Convenience zone 35,0..42,0 °C

–0,5 °C +0,5 °C

The two programme buttons allow to quickly select the preset temperature. When

pressing a programme key, the preset temperature is selected and displayed. The fac-

tory setting for programme is 35 °C and for programme it is 48°C. You can assign

your own settings for the programme keys:

• Prolonged pressing of the programme key stores the previously selected tem-

perature. 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.

Programme buttons

Temperature setting

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

6. Operation

Reset

Press + hold!

Reset completed

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.

Reset to factory setting

Set the exact temperature you need on the appliance and open the hot water tap.

Once you feel that the water is too hot, do not add any cold water and, instead, enter

a lower temperature on the appliance. If you were to add cold water, the water already

heated would cool down again and valuable energy would be wasted. Moreover, the

cold water added in the tap is not covered by the control range of the electronic cir-

cuitry, with the result that temperature constancy is no longer guaranteed.

How to save energy

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

ECO mode

If the full output of the instantaneous water heater does not suffice to heat the tapped

quantity of water, this will be indicated by on the LCD (e.g. in winter time, when

opening several taps at once). When you reduce the hot water flow rate, stops

lighting because the output of the appliance is sufficient to reach the set temperature

again.

Power limit

Unit provides no output When operating with preheated water (e.g. with solar systems), ensure that the maxi-

mum inlet temperature is not exceed.

If the inlet temperature exceeds the setpoint, the icon on the digital display indi-

cates that the heating power is switched off.

Top-up heating

Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688

7. Maintenance work

N.B. Maintenance work must only be carried out by a qualified tradesperson

familiar with instantaneous water heaters.

• 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 (special tap aerators and shower heads)

should be unscrewed and cleaned at regular intervals. Every three years, the electri-

cal and plumbing components should be inspected by an authorised professional in

order to ensure proper functioning and operational safety at all times.

This instantaneous water heater features an automatic air bubble protection to pre-

vent 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.

Venting after maintenance work

Cleaning and maintenance

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