CLAGE CDX 7-U Electric Instant Water Heater Instruction Manual

: June 6, 2024
: CLAGE

Table of Contents

CLAGE CDX 7-U Electric Instant Water Heater
Description of the appliance
How to use
Troubleshooting and service
Product data sheet
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CLAGE CDX 7-U Electric Instant Water Heater

CLAGE CDX 7-U Electric Instant Water Heater image

Note: Carefully read the enclosed safety instructions through in full before using the appliance and follow them during use!

Description of the appliance

The instantaneous water heater CDX 7-U / CDX 11-U is a electronically controlled, pressure-resistant water heater for a decentralised water supply to one or more tap connections.
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 keeping it constant in case of pressure fluctuations.
The factory set outlet temperature is 50 °C. This factory setting can be adjusted in the appliance to be in a range of approx 30 °C and 60 °C by a specialist only.
Note: If the water heater supplies a shower, the maximum temperature was reduced during initial operation. This limitation may not be exceeded.
In case of a low feed temperature and a high flow rate at the same time, it could hap-pen that the preset outlet temperature is not reached which is due to the fact that the appliance exceeded its capacity. The outlet temperature can be raised by reducing the water flow at the tap.

How to use

Venting after maintenance work

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.

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 electri-cal and plumbing components should be inspected by an authorised professional in order to ensure proper functioning and operational safety at all times.

Troubleshooting and service

This instantaneous water heater was manufactured conscientiously and checked sever-al 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.

Problem	Cause	Solution

Water stays cold

|

Master fuse tripped

|

Renew or activate fuse

Safety pressure cut-out tripped|

Contact customer service

Safety thermal cut-out tripped|

Contact customer 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 calci- fied| Let clean fine filter by a spe- cialist
Selected temperature is not reached| Excessive water flow (winter?)| Reduce water flow rate at the outlet
Water perceived to be too cold| Set temperature too low| Increase set temperature by a specialist
Water perceived to be too hot| Set temperature too high| Decrease set temperature by a specialist

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 custo mer 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 typeplate at hand.