Zip CLAGE CEX9-U Instruction Manual

Zip
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

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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

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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-

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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

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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
12
13
14
15
6
7
8
5
4
3
2
1
10
11
9

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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

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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

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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
–1 °C +1 °C
Select preset temperature
A1 A2
B1 B2
Store temperature
2
Press
≥ 3 sec
Display of new value (e.g. 43 °C)
Set required
temperature
(e.g. 43 °C)
4 3
1
Convenience zone 35,0..42,0 °C
1
–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

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Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688
6. Operation
+
Reset
1
Press + hold!
Reset completed
3
2
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
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

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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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Instructions for user - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688
8. 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 organisa-
tion of your importer or the Central
Customer Service Department. Please
have the details of the typeplate at
hand.
This instantaneous water heater was manufactured conscientiously and checked sev-
eral times before delivery. 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.
Problem Cause Solution
Water stays cold, digital
display does not light up
Master fuse tripped Renew or activate fuse
Safety pressure cut-
out tripped Contact customer service
Water stays cold, digital
display does light up
Safety thermal cut-out
tripped Contact customer service
Display flashes error mes-
sage “Er“
Control system has
switched off
Switch fuse off and on. If
“Er“ still flashes contact cus-
tomer service
Flow rate of hot water too
weak
Outlet fitting dirty or
calcified
Clean shower head, jet regu-
lator or sieves
Fine filter dirty or
calcified
Let clean fine filter by a spe-
cialist
Selected temperature is not
reached, “MAX“ lights
Water flow rate too
high
Reduce water flow rate at
the tap
Selected temp. is not
reached, “MAX“ does not
light
Cold water has been
added via the tap
Tap hot water only; set tem-
perature for use
Symbol “sun“ lights up
Inlet temperature
exceeding nominal
temperature
Reduce inlet temperature
Appliance heats, the display
does not light
Display plug not prop-
erly connected
Let fix correct position of
display plug by customer
service
If the connection cable is damaged, it must be replaced with an original spare cable
from the manufacturer by an authorised technician in order to avoid any hazards.
If you cannot rectify the fault with the aid of the troubleshooting table, please contact
customer service.

Instructions for User - CEX9-U - 801041 - November 2018 v1.00 Art.no: 9120-25688
4010436256885
Head Office
Zip Water (Aust) Pty. Ltd
ABN: 46 000 578 727
67-77 Allingham Street
Condell Park NSW 2200
Postal: Locked Bag 80
Bankstown 1885 Australia
Website: www.zipwater.com
Telephone: [phone]
Free Call: 1 800 638 633
As Zip’s policy is one of continuous
product improvement, changes to
specifications may be made without
prior notice. Images in this booklet
have been modified and may not be
true representations of the finished
goods.
+
1
3
2
+
12
1
–1 °C +1 °C
A1 A2
B1 B2
2
4 3
1
1
–0,5 °C +0,5 °C
3
+
1 2
2
8
4
7
5
3
6
9
+
1
Arrow key down
Arrow key up
Programme button 1
Programme button 2
Press + hold!
Reset completed
Press
≥ 3 sec
Confirmation
of deactivation
Press
≥ 3 sec
Display of new value (e.g. 43 °C)
Set required
temperature
(e.g. 43 °C)
Confirmation
of activation
Press
≥ 3 sec
Display flashes
Press
≥ 2 sec
Set temperature
Convenience zone 35,0..42,0 °C
Select preset temperature
Store temperature
Power limit
Unit provides no output
Temperature limit off
Temperature limit on Reset
Open service menu
Quick reference guide