DDLE Basis 27 - Boiler AEG - Free user manual and instructions

Product type	Instantaneous water heater with electronic regulation
Brand	AEG
Model	DDLE Basis 27
Dimensions (H x W x D)	485 x 226 x 93 mm
Weight	3.6 kg
Connected power	27 kW
Rated voltage	400 V three-phase (3/PE)
Temperature range	30 °C to 60 °C
Minimum flow rate for activation	> 3 l/min
Maximum permissible pressure	1 MPa (10 bar)
Protection rating	IP25 (recessed) / IP24 (surface-mounted)
Nominal capacity	0.4 L
Heating system	Bare wire, scale-resistant
Regulation	Electronic with air detector
Safety	Safety limiter, pressure switch, frost protection
Cleaning	Damp cloth, descaling of fittings
Maintenance	Regular cleaning of the filter
Spare parts	Available (see manual)
Warranty	According to country conditions

Frequently Asked Questions - DDLE Basis 27 AEG

How to install the DDLE Basis 27 water heater?

Installation must be carried out by a qualified installer. The unit is fixed to the wall using the supplied wall bracket. Connect the cold water inlet (G 1/2) and the hot water outlet. The electrical connection requires a fixed connection with a multi-pole disconnection device (contact opening ≥ 3 mm). Follow safety instructions and local standards.

What is the maximum output temperature?

The output temperature can be continuously adjusted from approximately 30 °C to 60 °C. To limit the risk of burns, an installer can activate a limitation at 43 °C by moving the plug of the setpoint generator to the intended position.

What to do if the water is not hot enough?

First check that the flow rate is not too high: reduce the flow at the tap. Make sure the incoming cold water temperature is not above 45 °C (e.g., with preheated water). If the problem persists, check the circuit breaker and filter. If necessary, contact an installer.

How to clean the filter?

Close the shut-off valve on the cold water inlet. Remove the filter located in the cold water fitting, clean it with clear water, then reassemble it. Perform this operation regularly to ensure proper operation.

Can I use the unit with preheated water?

Yes, the unit can be supplied with preheated water (e.g., solar). Install a centralized thermostatic mixing valve upstream to limit the inlet temperature to a maximum of 45 °C. The internal temperature limitation may not be sufficient in this case.

How to set the temperature limitation to 43 °C?

Open the cover and locate the temperature limiter on the inside. Plug the cable of the setpoint generator into the 43 °C position. After activation, the adjustment range will be between 30 and 43 °C. Call an installer if necessary.

What do the LED indicators mean?

The diagnostic indicator has three LEDs: red steady on indicates a fault; yellow steady on means the unit is heating; green flashing indicates the unit is powered on. If green or yellow flashes associated with a fault, consult the troubleshooting table in the manual.

How to purge the unit after a water cut-off?

After a water cut-off, turn off the unit at the electrical panel. Open the hot water tap for one minute to purge the cold water supply line. Then restore the power supply. This operation prevents damage to the bare wire heating system.

Is the unit suitable for hard water?

Yes, the bare wire heating system is designed to be scale-resistant. It is largely resistant to limescale. Regular descaling of the fittings is recommended, but the unit itself does not require specific descaling.

What is the annual energy consumption?

According to manufacturer data, the annual electricity consumption is approximately 481 kWh for the DDLE Basis 27 model. The energy efficiency class is A with an efficiency of 39%.

USER MANUAL DDLE Basis 27 AEG

Electronically controlled instantaneous water heater

Operation and installation 17

1. General information 18
2. Safety 18
3. Appliance description 19
4. Settings 19
5. Cleaning, care and maintenance 19
6. Troubleshooting 19

INSTALLATION

1. Safety 20
2. Appliance description 20 9. Preparations 20
3. Installation 21
4. Commissioning 25
5. Shutdown 26
6. Troubleshooting 26
7. Maintenance 27
8. Specification 27

GUARANTEE

ENVIRONMENT AND RECYCLING

SPECIAL INFORMATION

The appliance may be used by children aged 8 and up and persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how, provided that they are supervised or they have been instructed on how to use the appliance safely and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised. - Risk of scalding: The tap can reach temperatures in excess of 60°C. Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3mm contact separation. - Secure the appliance as described in chapter "Installation / Installation". Observe the maximum permissible pressure (see chapter Installation / Specification / Data table). Drain the appliance as described in chapter "Installation / Maintenance / Draining the appliance".

OPERATION

1. General information

The chapters "Special Information" and "Operation" are intended for both the user and qualified contractors.

The chapter "Installation" is intended for qualified contractors.

Note

Read these instructions carefully before using the appliance and retain them for future reference.

Pass on the instructions to a new user if required.

1.1 Safety instructions

1.1.1 Structure of safety instructions

KEYWORD Type of risk

Here, possible consequences are listed that may result from failure to observe the safety instructions.

» Steps to prevent the risk are listed.

1.1.2 Symbols, type of risk

Symbol Type of risk
!	Injury
	Electrocution
	Burns (burns, scalding)

1.1.3 Keywords

KEYWORD Meaning
DANGER	Failure to observe this information will result in seri-ous injury or death.
WARNING	Failure to observe this information may result in seri-ous injury or death.
CAUTION	Failure to observe this information may result in non-serious or minor injury.

1.2 Other symbols in this documentation

Note

General information is identified by the adjacent symbol.

» Read these texts carefully.

Symbol Meaning
!	Material losses (appliance damage, consequential losses and environmental pollution)
	Appliance disposal

» This symbol indicates that you have to do something. The action you need to take is described step by step.

1.3 Units of measurement

Note

All measurements are given in mm unless stated otherwise.

2. Safety

2.1 Intended use

This appliance is intended for domestic use. It can be used safely by untrained persons. The appliance can also be used in a non-domestic environment, e.g. in a small business, as long as it is used in the same way.

This pressurised appliance is suitable for heating domestic hot water or for reheating preheated water. The appliance can supply one or more draw-off points.

Any other use beyond that described shall be deemed inappropriate. Observation of these instructions and of instructions for any accessories used is also part of the correct use of this appliance.

2.2 General safety instructions

CAUTION Burns

During operation, the tap can reach temperatures in excess of 60°C.

There is a risk of scalding at outlet temperatures in excess of 43°C.

CAUTION Burns

If operating with preheated water, e.g. from a solar thermal system, the DHW temperature may vary from the selected set temperature.

WARNING Injury

The appliance may be used by children aged 8 and up and persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how, provided that they are supervised or they have been instructed on how to use the appliance safely and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised.

Where children or persons with limited physical, sensory or mental abilities are allowed to use this appliance, we recommend a permanent temperature limit. A qualified contractor can set the limit for you.

Material losses

The user should protect the appliance and its tap against frost.

2.3 CE designation

The CE designation shows that the appliance meets all essential requirements according to the:

Low Voltage Directive, Electromagnetic Compatibility Directive. The maximum permissible mains impedance is indicated in chapter "Installation / Specification / Data table".

2.4 Test symbols

See type plate on the appliance.

Country-specific approvals and certifications: Germany

A general test certificate as verification of suitability regarding noise emissions has been issued for this appliance, based on the State Building Regulations [Germany].

3. Appliance description

The electronically controlled instantaneous water heater with automatic output matching keeps the outlet temperature constant up to the output limit. The temperature is then selected via the draw-off tap.

Heating system

The bare wire heating system has a pressure-tested plastic casing. The heating system is suitable for hard and soft water areas. This heating system has a low susceptibility to scale build-up. This system ensures rapid and efficient DHW availability.

Note

The appliance is equipped with an air detector that largely prevents damage to the heating system. If, during operation, air is drawn into the appliance, the appliance shuts down for one minute, thereby protecting the heating system.

4. Settings

The DHW outlet temperature can be variably adjusted.

Hand wash basin (approx. 35 °C)

Shower (approx. 40 °C)

Bath (approx. 45 °C)

Kitchen sink (approx. 55 °C)

Turn the temperature selector to the required temperature.

Temperature limit

Your qualified contractor can set a temperature limit of up to 43°C inside the appliance. With the temperature limit enabled, you can turn the temperature selector across its full range. You can now set the outlet temperature only between 30°C and 43°C.

Note

Should the outlet temperature fail to reach the required level with the draw-off valve fully open and the temperature selector set to maximum, then more water is flowing through the appliance than can be heated by the heating system. The appliance is at its output limit.

» Reduce the water volume at the draw-off valve.

Recommended setting for operation with a thermostatic valve

Set the temperature at the appliance to the maximum temperature.

Following an interruption of the water supply

Material losses

In order to prevent the destruction of the bare wire heating system, return the appliance into use following an interruption of the water supply as follows:

» Disconnect the appliance from the power supply by removing the fuses/tripping the MCBs.

Open the tap for one minute until the appliance and its upstream cold water inlet line are free of air. Switch the mains power back ON again.

5. Cleaning, care and maintenance

Never use abrasive or corrosive cleaning agents. A damp cloth is sufficient for cleaning the appliance. Check the taps regularly. Limescale deposits at the tap outlets can be removed using commercially available descaling agents.

6. Troubleshooting

Problem Cause Remedy
The appliance will not start despite the DHW valve being fully open.	There is no voltage at the appliance.	Check the fuses/ MCBs in your fuse box/distribution panel.
	The flow rate is too low. The aerator in the tap or the shower head is scaled up or contaminated.	Clean and/or descale the aerator or shower head.
Required temperature > 45 °C is not achieved.	The water supply has been interrupted.	Vent the appliance and the cold water inlet line (see chapter "Operation / Settings").
	The cold water inlet temperature is > 45 °C.	Reduce the cold water inlet temperature.

If you cannot remedy the fault, notify your qualified contractor. To facilitate and speed up your enquiry, please provide the serial number from the type plate (000000-0000-0000):

D0000041614

INSTALLATION

7. Safety

Only a qualified contractor should carry out installation, commissioning, maintenance and repair of the appliance.

7.1 General safety instructions

We guarantee trouble-free function and operational reliability only if original accessories and spare parts intended for the appliance are used.

Material losses

Observe the maximum inlet temperature. Higher temperatures may damage the appliance. You can limit the maximum inlet temperature by installing a central thermostatic valve.

72 Instructions, standards and regulations

Note

Observe all applicable national and regional regulations and instructions.

The protection rating IP 25 (hoseproof) can only be ensured with a correctly fitted cable grommet. The specific electrical resistance of the water must not fall below that stated on the type plate. In a linked water network, factor in the lowest electrical resistance of the water (see chapter "Installation / Specification / Data table"). Your water supply utility will advise you of the specific electrical water resistance or conductivity.

8. Appliance description

8.1 Standard delivery

The following are delivered with the appliance:

• Wall mounting bracket
• Threaded studs, screws and rawl plugs for the wall mounting bracket. Installation template. 2 twin connectors (cold water with shut-off valve). Flat gaskets. Cable grommet (power cable from above / below).
• Screws / rawl plugs for fixing the back panel in the case of water connection on finished walls. Additional flow limiter in the cold water pipe (only DDLE Basis 18/21/24).

8.2 Accessories

Tap

ADEo 70 WD Mono lever mixer tap with bath / shower changeover

Stove connection set

Connection set for the power connection of the DDLE Basis 11 and DDLE Basis 13

Installation accessories

Pipe assembly, undersink installation UT 104, connections: Finished walls, G 3/8, top. Water connections with 12 mm compression fitting.

Universal mounting frame

Mounting frame with electrical connections.

Pipe assembly for undersink appliances

You will need the undersink installation set if you use the water connections (G 3/8 A) at the top of the appliance.

Pipe assembly for offset installation

You will need the pipe assembly with bends if you intend to offset the appliance by 90mm downwards from the water connection.

Pipe assembly for replacing a gas water heater

You will need the pipe assembly if you are using the existing gas water heater connections (cold water connection on the left-hand side, DHW connection on the right-hand side).

Load shedding relay (LR 1-A)

The load shedding relay for installation in the distribution board provides priority control for the instantaneous water heater when other appliances, such as electric storage heaters, are being operated simultaneously.

ZTA 3/4 - Central thermostatic valve

The thermostatic valve is for central premixing, for example on an instantaneous water heater with solar thermal system.

9. Preparations

9.1 Installation site

Material losses

Install the appliance in a room free from the risk of frost.

Always install the appliance vertically and near the draw-off point.

The appliance is suitable for undersink and oversink installations.

Undersink installation 26_02_02_1345

Oversink installation 26_02_02_1344

Mount the appliance on the wall. The wall must have a sufficient load-bearing capacity.

9.2 Water installation

A safety valve is not required.

Flush the water line thoroughly. Ensure that the flow rate for switching on the appliance is achieved (see chapter "Installation / Specification / Data table", On). If the flow rate is not achieved, remove the flow limiter (see chapter "Installation / Installation, Removing the flow limiter"). If the required flow rate is not achieved when the draw-off valve is fully opened, increase the water line pressure.

Taps

Use appropriate pressure taps. Open taps are not permitted.

Note

Never use the shut-off valve in the cold water inlet to reduce the flow rate. The shut-off valve is intended to shut off the appliance.

Permissible water line materials

Cold water inlet line:

Galvanised steel pipe, stainless steel pipe, copper pipe or plastic pipe

DHW outlet line: Stainless steel pipe, copper pipe or plastic pipe

Material losses

If plastic pipework is used, take into account the maximum inlet temperature and the maximum permissible pressure (see chapter "Installation / Specification / Data table").

Flexible water connection lines

If the appliance is installed with flexible water connection lines, ensure that the bayonet fittings of the pipe bends do not become twisted inside the appliance. Secure the back panel at the bottom with two additional screws.

10. Installation

10.1 Standard installation

• Electrical connection from above; installation on unfinished walls. Water connection on unfinished walls.
• DDLE Basis 18/21/24: Connected load 21kW preset. For further installation options, see chapter "Installation / Installation / Installation options": Electrical connection from below on unfinished walls.
• Electrical connection on finished walls.
• Connecting a load shedding relay. Undersink installation, water connections from above. Water installation on finished walls. Operation with preheated water. Temperature limit.

Opening the appliance: Open the appliance by releasing the snap lock.

Remove the back panel by pressing the two locking hooks and pulling the lower section of the back panel forwards.

Preparing the power cable.

Fitting the wall mounting bracket: Mark out the holes for drilling with the installation template. If the appliance is to be installed with water connections on finished walls, also mark out the fixing holes in the lower part of the template.

Drill the holes and secure the wall mounting bracket with 2 screws and 2 rawl plugs (screws and rawl plugs are part of the standard delivery). Fit the threaded stud provided. Mount the wall mounting bracket.

Fitting the cable grommet.

26_02_02_0950

Fit the cable grommet. For connecting cables larger than 6 mm², enlarge the hole in the cable grommet.

Making the water connection

Material losses

Carry out all water connection and installation work in accordance with regulations.

Seal and insert the twin connectors.

Material losses

Never use the shut-off valve in the cold water inlet to reduce the flow rate.

Preparing the back panel

Material losses

If you break out the wrong knock-out by mistake, use a new back panel.

Break out the cable grommet knock-out in the back panel. Deburr the sharp edges with a file if necessary.

Installing the appliance

Push the back panel over the threaded stud and the cable grommet. Pull the cable grommet by the locking hooks into the back panel using pliers, until both locking hooks audibly click into place. Remove the transport plugs from the water connections. Push the back panel firmly against the wall. Lock the fixing toggle by turning it 90° clockwise.

Screw the water connection pipes with flat gaskets onto the twin connectors.

Material losses

The strainer must be fitted for the appliance to function.

When replacing an appliance, check whether the strainer is installed (see chapter "Installation / Maintenance").

Removing / replacing the flow limiter

Note

Never remove the flow limiter if you are using a thermostatic valve.

1 Plastic profile washer 2 Flow limiter

Remove the flow limiter. Re-insert the plastic profile washer.

DDLE Basis 18/21/24: Replace the flow limiter

If 24 kW connected load has been selected, replace the fitted flow limiter (white) with the flow limiter supplied (orange, fixed to the cold water pipe).

Making the electrical connection

WARNING: Electrocution

Carry out all electrical connection and installation work in accordance with relevant regulations.

WARNING: Electrocution

The connection to the power supply must be in the form of a permanent connection in conjunction with the removable cable grommet. Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3 mm contact separation.

WARNING: Electrocution

Ensure that the appliance is earthed.

Material losses

Observe the type plate. The specified voltage must match the mains voltage.

Connect the power cable to the mains terminal (see chapter "Installation / Specification / Wiring diagram").

DDLE Basis 18/21/24: Re-plugging the coding card

In its delivered condition, the appliance is plugged to 21 kW. When changing to a different connected load, carry out the following steps:

» Re-plug the coding card according to the actual connected load (for connected load options and fuse protection of the appliance, see chapter "Installation / Specification / Data table").

Tick the selected connected load on the type plate. Please use a ballpoint pen to do this.

Fitting the lower section of the back panel

Fit the lower section into the back panel. Click the lower section of the back panel into place. Align the mounted appliance by loosening the fixing toggle, aligning the power supply and back panel, and then re-tightening the fixing toggle. If the appliance back panel does not rest against the wall, you can secure the appliance with two additional screws (see chapter "Installation / Installation options / Water installation on finished walls").

10.2 Installation options

10.2.1 Electrical connection from below on unfinished walls

Fit the cable grommet.

Material losses: If you break out the wrong knock-out by mistake, use a new back panel.

Break out the cable grommet knock-out in the back panel. Deburr the sharp edges with a file if necessary. Reposition the mains terminal in the appliance from the top to the bottom. Push the back panel over the threaded stud and the cable grommet. Pull the cable grommet by the locking hooks into the back panel using pliers, until both locking hooks audibly click into place. Push the back panel firmly against the wall. Lock the fixing toggle by turning it 90° clockwise.

10.2.2 Electrical connection on finished walls

Note

This type of connection changes the protection rating of the appliance.

Change the type plate. Cross out "IP 25" and mark the box "IP 24". Please use a ballpoint pen to do this.

Material losses

If you break out the wrong knock-out by mistake, use a new back panel.

Cleanly cut or break out the required opening in the appliance back panel (see chapter "Installation / Specification / Dimensions and connections"). De-burr the sharp edges with a file if necessary.

Route the power cable through the cable grommet and connect it to the mains terminal.

10.2.3 Connecting a load shedding relay

Install a load shedding relay in the distribution board in conjunction with other electric appliances, e.g. electric storage heaters. The relay responds when the instantaneous water heater starts.

Material losses

Connect the phase that switches the load shedding relay to the indicated terminal of the mains terminal in the appliance (see chapter "Installation / Specification / Wiring diagram").

10.2.4 Undersink installation, water connections - from above

An undersink installation with water connections from above can be achieved with an additional pipe assembly for undersink appliances. Cleanly break out the water pipe knock-outs in the back panel and fit the pipe assembly.

10.2.5 Water installation on finished walls

Note

This type of connection changes the protection rating of the appliance.

» Change the type plate. Cross out "IP 25" and mark the box "IP 24". Please use a ballpoint pen to do this.

» Fit the water plugs with gaskets in order to seal the connection for unfinished walls. » Fit a suitable pressure tap.

Click the lower section of the back panel into place in the upper section of the back panel. » Secure the connection pipes to the appliance. Secure the back panel at the bottom with two additional screws.

Material losses

If you break out the wrong knock-out by mistake, use a new back panel.

Cleanly break out the knock-outs in the appliance cover. Deburr the sharp edges with a file if necessary.

Slide the lower section of the back panel under the tap connection pipes. Click the lower section of the back panel into place. Secure the connection pipes to the appliance.

10.2.6 Operation with preheated water

You can limit the maximum inlet temperature by installing a central thermostatic valve.

10.2.7 Temperature limit

CAUTION Burns

If operating with preheated water, the set temperature limit and anti-scalding protection may be ineffective.

In this case, limit the temperature with an upstream central thermostatic valve.

You can set the temperature limit inside the appliance cover to 43°C.

Push the set value transducer cable plug onto the 43°C temperature limiter.

After enabling the temperature limit, you can only select temperatures between 30 and 43°C.

10.3 Completing the installation

Open the shut-off valve in the twin connector or the cold water inlet line.

11. Commissioning

WARNING Electrocution. Commissioning may only be carried out by a qualified contractor in accordance with safety regulations.

11.1 Initial start-up

Open and close all connected draw-off valves several times, until all air has been vented from the pipework and the appliance. Carry out a tightness check. Activate the safety pressure limiter by firmly pressing in the reset button (safety pressure limiter disabled in the delivered condition). Plug the temperature selector cable plug into the PCB. Fit the appliance cover. The appliance cover must audibly click into place. Check that the appliance cover is seated correctly. Switch the mains power ON. Calibrate the temperature. Turn the temperature selector fully clockwise then fully anti-clockwise. Check the function of the appliance.

Appliance handover

Explain the functions of the appliance to the user. Show the user how to operate the appliance. Make the user aware of potential dangers, especially the risk of scalding. Hand over these instructions.

11.2 Recommissioning

Vent the appliance and the cold water inlet line (see chapter "Operation / Settings"). See chapter "Installation / Installation / Commissioning / Initial start-up".

12. Shutdown

Isolate all poles of the appliance from the power supply.

Drain the appliance (see chapter "Installation / Maintenance").

13. Troubleshooting

WARNING Electrocution

To test the appliance, it must be supplied with power.

Possible indications of diagnostic traffic light (LED)

Red Illuminates in the event of a fault

Yellow Illuminates during heating mode

Green Flashing: Appliance is supplied with mains power

1 Diagnostic traffic light

Fault / diagnostic traffic light LED display	Cause Remedy
The flow rate is too low. The strainer in the	the appliance is dirty. Clean the strainer.
The set temperature is not achieved.	One phase down.	Check the fuse/MCB in your fuse box/distribution panel.
The heating system does not switch on.	The system detects air in the water. Heating output stops temporarily.	The appliance restarts after one minute.
No hot water and no traffic light display.	The MCB/fuse has responded/blown.	Check the fuse/MCB in your fuse box/distribution panel.
	The safety pressure limiter has tripped.	Remove the cause of the fault (e.g. faulty pressure washer).
		Protect the heating system against overheating by opening a draw-off valve downstream of the appli- ance for one minute. This depressurises and cools down the heating system.
		Activate the safety pressure limiter at flow pressure by pressing the reset button (see chapter "Installa-tion / Commissioning / Initial start-up").
	The PCB is faulty.	Check the PCB and replace if required.
Traffic light display: Green flashing or constantly on	The PCB is faulty.	Check the PCB and replace if required.
No hot water at a flow rate of >3 l/min.	The flow meter DFE is not plugged in.	Plug the flow meter plug back in.
	The flow meter plug is faulty.	Check the flow meter and replace if required.
Traffic light display: Yellow constantly on; green flashing	The high limit safety cut-out has responded or its lead is broken.	Check the high limit safety cut-out and replace if required.
No hot water at a flow rate of >3 l/min.
	The heating system is faulty.	Check the heating system resistor and replace if required.
	The PCB is faulty.	Check the PCB and replace if required.
Traffic light display: Yellow constantly on; green flashing	The outlet sensor has been pulled off. A lead is broken.	Plug in the outlet sensor or replace if required.
Traffic light display: Red constantly on; green flashing	The cold water sensor is faulty.	Check the PCB and replace if required.
No hot water Required temperature >45 °C is not achieved.	The cold water inlet temperature exceeds 45 °C.	Reduce the cold water inlet temperature to the ap- pliance.
Traffic light display: Red constantly on; green flashing	The outlet sensor is faulty (short circuit).	Check the outlet sensor and replace if required.

14. Maintenance

WARNING Electrocution Before any work on the appliance, disconnect all poles from the power supply.

Draining the appliance

You can drain the appliance for maintenance work or to protect it from frost.

WARNING Burns Hot water may escape when the appliance is being drained.

Close the shut-off valve in the twin connector or the cold water inlet line. Open all draw-off valves. Undo the water connections on the appliance. If dismantled, store the appliance in a room free from the risk of frost, as water residues remaining inside the appliance can freeze and cause damage.

Cleaning the strainer

If dirty, clean the strainer in the threaded cold water fitting. Close the shut-off valve in the cold water inlet line before removing, cleaning and refitting the strainer.

15. Specification

15.1 Dimensions and connections

b02 Entry electrical cables I
c01 Cold water Inlet Male thread G 1/2 A
c06 DHW outlet	Male thread	G 1/2 A

Alternative connection options

b02	Entry electrical cables I
b03	Entry electrical cables II
b04	Entry electrical cables III

15.2 Wiring diagram

3/PE ~ 380 - 415 V

1 Heater 2 High limit safety cut-out 3 Safety pressure limiter

Load shedding relay LR 1-A

1 Control cable to the contactor of the second appliance (electrical storage heater for example). 2 Control contact opens when switching the instantaneous water heater on.

15.3 DHW output

The DHW output is subject to the mains voltage, the appliance's connected load and the cold water inlet temperature. The rated voltage and rated output can be found on the type plate (see chapter "Operation / Troubleshooting").

Specific electrical resistance and specific electrical conductivity (see chapter "Installation / Specification / Data table").

Standard specifica-tion at 15 °C			20 °C			25 °C
Resist- ance ρ	Conductiv- ity Ω		Resist- ance ρ	Conductiv- ity Ω		Resist- ance ρ	Conductiv- ity Ω
Ωcm	mS/m	μS/cm	Ωcm	mS/m	μS/cm	Ωcm	mS/m	μS/cm
900	111	1111	800	125	1250	735	136	1361
1000	100	1000	890	112	1124	815	123	1227
1100	91	909	970	103	1031	895	112	1117
1200	83	833	1070	93	935	985	102	1015
1300	77	769	1175	85	851	1072	93	933

15.5 Pressure drop

Taps

Pressure drop at taps at flow rate of 10 l/min
Mono lever mixer tap, approx.	MPa	0.04 - 0.08
Thermostatic valve, approx.	MPa	0.03 - 0.05
Hand shower, approx.	MPa	0.03 - 0.15

Sizing the pipework

When calculating the size of the pipework, a pressure drop for the appliance of 0.1 MPa is recommended.

15.6 Fault conditions

In case of faults, loads up to a maximum of 95°C at a pressure of 1.2 MPa can occur temporarily in the installation.

15.7 Details on energy consumption

Product data complies with EU regulations relating to the Directive on the eco-design of energy related products (ErP).

		DDLE Basis 11	DDLE Basis 13	DDLE Basis 18	DDLE Basis 18/21/24	DDLE Basis 27
		229296	229297	222388	222390	222391
Manufacturer		AEG Haustechnik	AEG Haustechnik	AEG Haustechnik	AEG Haustechnik	AEG Haustechnik
Load profile		XS	XS	S	S	S
Energy efficiency class		A	A	A	A	A
Annual power consumption	kWh	473	473	477	477	481
Energy conversion efficiency	%	39	39	39	39	39
Default temperature setting	°C	60	60	60	60	60
Sound power level	dB(A)	15	15
Special information on measuring efficiency		none	none	none	Data at Pmax.	none

15.8 Data table

DDLE Basis		11		DDLE Basis 13			DDLE Basis 18			DDLE Basis 18/21/24			DDLE Basis 27
229296 229297 222	388 222	390	222391
Electrical data
Rated voltage	V	380	400	380	400	415	380	400	415	380	400	415	380	400
Rated output	kW	10.1	11	12.2	13.5	14.5	16.2	18	19.4	16.2/19/21.7	18/21/24	19.4/22.6/25.8	24.4	27
Rated current	A	15.4	16	18.5	19.5	20.2	24.7	26	27	27.6/29.5/35	29/31/35	30.1/32.2/36.3	37.1	39
Fuse	A	16	16	20	20	20	25	25	32	32/32/35	32/32/35	32/32/40	40	40
Phases		3/PE		3/PE			3/PE			3/PE			3/PE
Frequency	Hz	50/60	50/60	50/60	50/60	50/-	50/60	50/60	50/-	50/60	50/60	50/-	50/60	50/60
Specific resistance ρ 15≥ (at δcold ≤25 °C)	Ω cm	900	900	900	900	1000	900	900	1000	900	900	1000	900	900
Specific conductivity σ15≤ (at δcold ≤25 °C)	μS/cm	1111	1111	1111	1111	1000	1111	1111	1000	1111	1111	1000	1111	1111
Specific resistance ρ 15≥ (at δcold ≤45 °C)	Ω cm	1200	1200	1200	1200	1300	833	1200	1300	833	1200	1300	833	1200
Specific conductivity σ15≤ (at δcold ≤45 °C)	μS/cm	830	830	830	830	770	1200	833	770	1200	833	770	1200	833
Max. mains impedance at 50Hz	Ω						0.379	0.360	0.347	0.284	0.270	0.260	0.254	0.241
Connections
Water connection		G 1/2 A		G 1/2 A			G 1/2 A			G 1/2 A			G 1/2 A
Application limits
Max. permissible pressure	MPa	1		1			1			1			1
Max. inlet temperature for reheating	°C	45		45			45			45			45
Values
Max. permissible inlet temperature	°C	60		60			60			60			60
On	l/min	>3		>3			>3			>3			>3
Flow rate for pressure drop	l/min	3.1		3.9			5.2			5.2/6.0/6.9			7.7
Pressure drop at flow rate	MPa	0.07 (0.02 without DMB)		0.11 (0.03 without DMB)			0.08 (0.06 without DMB)			0.08/0.10/0.13 (0.06/0.08/0.10 without DMB)			0.16(0.12 without DMB)
Flow rate limit at	l/min	4.0		4.0			8.0			8.0 / 8.0 / 9.0			9.0
DHW delivery	l/min	5.6		6.9			9.2			9.2/10.7/12.3			12.7
Δδ on delivery	K	28		28			28			28			28
Hydraulic data
Nominal capacity	I	0.4		0.4			0.4			0.4			0.4
Versions
Connected load adjustable			-
Temperature setting range	°C	ca. 30-60		ca. 30-60			approx. 30-60			approx. 30-60			approx. 30-60
Insulating block		Plastic		Plastic			Plastic			Plastic			Plastic
Heating system heat generator		Bare wire		Bare wire			Bare wire			Bare wire			Bare wire
Cover and back panel		Plastic		Plastic			Plastic			Plastic			Plastic
Colour		White		White			White			White			White
IP rating		IP25		IP25			IP25			IP25			IP25
Dimensions
Height	mm	485		485			485			485			485
Width	mm	226		226			226			226			226
Depth	mm	93		93			93			93			93
Weights
Weight	kg	3.6		3.6			3.6			3.6			3.6

Guarantee

The guarantee conditions of our German companies do not apply to appliances acquired outside of Germany. In countries where our subsidiaries sell our products a guarantee can only be issued by those subsidiaries. Such guarantee is only granted if the subsidiary has issued its own terms of guarantee. No other guarantee will be granted.

We shall not provide any guarantee for appliances acquired in countries where we have no subsidiary to sell our products. This will not affect warranties issued by any importers.

Environment and recycling

We would ask you to help protect the environment. After use, dispose of the various materials in accordance with national regulations.

10.3 Mounting and closing

Unless otherwise specified, all dimensions are given in millimeters.

2. Safety technology

2.1 Intended use

The appliance is intended for household use. Safe operation by the user does not require special training. The appliance can be used not only in households, but also, for example, in small businesses, provided that the operating conditions are observed.

The pressure-type appliance is intended for heating tap water or for additional heating of previously heated water. The appliance can supply water to one or several draw-off points.

Any other use not specified in this manual is considered use not in accordance with the intended purpose. Use in accordance with the intended purpose includes compliance with the requirements of this manual, as well as the manuals for the accessories used.

2.2 General safety instructions

CAUTION: Hot surface

During operation, the mixer can heat up to temperatures above 60°C.

If the water temperature at the outlet exceeds 43°C, there is a risk of scalding.

CAUTION: Hot surface

In operating mode with the use of pre-heated water, for example, from a solar installation, the temperature of the prepared hot water may deviate from the set temperature.

WARNING: Injury

Children over 8 years of age, as well as persons with reduced physical, sensory, or mental capabilities, or those lacking experience and knowledge of the appliance, are only allowed to use the appliance under the supervision of other persons or after receiving appropriate instructions on safe use and understanding the potential dangers in case of non-compliance with these rules. Do not allow children to play with the appliance. Children may perform cleaning and user maintenance tasks only under adult supervision.

If the appliance is used by persons with reduced physical, sensory, or mental capabilities, we recommend setting a constant temperature limit. This setting can be performed by a specialist.

Material damage

The user must ensure that the water pipes are protected from freezing.

2.3 Symbols

The device complies with all the main requirements:

Directives for low-voltage equipment,

Directives for electromagnetic compatibility. The maximum permissible total network distortion is specified in the Installation / Technical characteristics / Parameters table chapter.

2.4 Technical control mark

See the factory plate on the device.

Eurasian conformity

This device complies with the safety requirements of the technical regulation of the Customs Union, confirmed by the conformity assessment procedure.

2.5 Technical control mark

See the factory plate on the device.

State permits and certificates: Germany

In accordance with construction standards and regulations, a general certificate of conformity has been issued for the possibility of using the device from the point of view of its noise characteristics.

3. Description of the device

The flow-through water heater with electronic control automatically regulates the heating power, allowing to ensure a constant water temperature at the outlet, taking into account the maximum power of the device. When the maximum power of the device is exceeded, the temperature regulation is carried out by reducing the water flow through the fitting.

Heating system

The heating system with an open heating element is protected by a sealed plastic housing. The heating system is suitable for both soft and hard water. Such a system is less susceptible to scale formation. The heating system provides fast and effective supply of hot water.

Instruction for the device

The device is equipped with an air detection system that prevents damage to the heating system. If air enters the device during operation, the device turns off the heating for one minute, thereby protecting its heating system.

4. Settings

The outlet water temperature is regulated steplessly.

Temperature limiter

A specialist can set a temperature limiter on the device to a value of 43°C. If the temperature limiting function is activated, it can be adjusted by turning the rotary switch within the limits of the switch knob's rotation. The outlet water temperature can only be set between 30°C and 43°C.

Note

If, with the draw-off valve fully open, the set temperature is at its maximum value, and the outlet water is not hot enough, it means that more water is flowing through the device than the heating system can heat. The device is operating at its power limit.

In such a case, it is necessary to reduce the water flow at the draw-off valve.

Recommendations for settings when using thermostatic fittings

Set the temperature regulator knob to the maximum value.

After disconnecting the water supply

Material damage

To avoid damage to the system with an exposed heating element, the device must be switched on after disconnecting the water supply in the following manner.

Disconnect the device by turning off the circuit breaker. Open the mixer valve for one minute until all air has been removed from the device and the cold water supply. Then restore the power supply.

8.2 Accessories

Mixer

ADEo 70 WD - single-lever mixer with bath/shower diverter

Connection set for the appliance

Connection set for electric water heater DDLE Basis 11 and DDLE Basis 13

Mounting accessories

Pipe set for mounting under the sink UT 104, connection: open mounting, G 3/8, from above. Connection pipes with 12 mm compression fittings.

Universal mounting frame

Mounting frame with electrical terminals.

Pipe set for mounting the appliance under the sink

If the water connection is made from above (G 3/8 A), a set for mounting under the sink is required.

Pipe set for mounting with mixer

If during installation the appliance is shifted 90 mm vertically relative to the water connection pipe, a pipe set with elbow is required for mounting.

Pipe set for conversion to gas column

If the existing pipes of a gas water heater are used during installation (cold water connection on the left, hot water on the right), a pipe set for installation is required.

Reset button (LR 1-A)

The reset button is intended for installation in an electrical distribution device; it ensures the rapid connection of the instantaneous water heater for temporary operation, for example, with electric instantaneous water heaters.

ZTA 3/4 - central thermostat mixing valve

The thermostatic mixing valve is intended for centralized preliminary mixing, for example, of water for instantaneous water heaters and solar installations.

9. Preparatory measures

9.1 Installation location

Material damage to the device is permitted only in frost-free rooms.

The device should be installed vertically, in the immediate vicinity of the draw-off point.

The device can be installed above the sink or on it.

Installation above the sink 26_02_02_1345

1 Cold water inlet 2 Hot water outlet pipe

Installation above the sink

26.02.02.1344

1 Cold water inlet 2 Hot water outlet pipe

Note

Mount the device on the wall. The wall must have sufficient load-bearing capacity.

9.2 Water connection work

Installation of a safety valve is not required. Carefully flush the water supply system. It is necessary to ensure that the volume flow (see chapter "Installation/Technical data/Parameter table") is sufficient for the device to be switched on. If the volume flow value is not reached, the volume flow limiter must be adjusted (see chapter "Installation/Installing the volume flow limiter"). If, with the draw-off valve fully open, the required volume flow value is not reached, the pressure in the water supply main must be increased.

Mixer

Use low-pressure mixers. The use of high-pressure mixers is prohibited.

Note

To reduce the flow rate, it is forbidden to use shut-off valves or supply of cold water! The shut-off valve serves to lock the device.

Permitted materials for water pipes

Pipework for the water connection: galvanized steel, stainless steel, copper or plastic. Pipework for the water supply: pipe made of stainless steel and steel, copper or plastic.

Material for pipes

When using plastic pipes, the maximum temperature and maximum permissible pressure must be taken into account (see chapter "Installation / Technical data / Parameter table").

Flexible hoses for water supply

When connecting the device with flexible hoses, it is necessary to prevent twisting of the union nuts and pipe bends. Secure the hose wall, fixing it from below with two additional screws.

10. Installation

10.1 Standard installation

From above, hidden wiring for concealed installation of the DDLE Basis 18/21/24 water connection. Monobloc adjustment to 21 kW.

Material damage

Reduction of flow rate. It is forbidden to use a shut-off valve on the cold water supply line!

Preparing the rear wall

Material damage

If by mistake the wrong hole was drilled for the cable bushing, a new rear wall must be used!

D0000041893

» Drill a hole in the rear wall for the cable bushing. If there are sharp edges, deburr them with a file.

Installing the appliance

D0000041894

》Place the rear wall and the cable bushing. Insert the cable bushing with pliers into the retainer on the rear wall so that both retainers engage with the visible ring.

Remove the protective caps from the pipe connections before connecting the water. Fit the supply line tightly to the wall. Secure the retaining screw by turning it right to 90°.

Connect the pipes with flat seals to the double nipples.

Material damage

！ For the appliance to work, installation of a sieve filter is necessary.

Before using the device, check the presence of the mains fuse (see chapter "Installation / Technical service").

Dismantling / replacement of the flow rate limiter

Warning

Use of thermostatic valves: dismantling the flow rate limiter is prohibited.

36-02-02-07

1 Plastic spring plate 2 Flow rate limiter. Remove the flow rate limiter. Install the plastic spring plate in place.

Model DDLE Basis 18/21/24 Replacement of the flow rate limiter

When choosing the required power of 24 kW, the installed flow rate limiter (white) must be replaced with the flow rate limiter from the supply kit (orange, attached to the cold water pipe).

Connection to the mains

DANGER: Danger of electric shock

All work on electrical connection and installation must be carried out in accordance with the instructions.

DANGER: Danger of electric shock

Connection to the electrical network is only permitted in a non-detachable design and with a cable gland. The device must be disconnected from the mains with a contact opening of at least 3 mm on all poles.

DANGER: Danger of electric shock

Check the connection of the device to the protective conductor.

The data can be checked against the factory plate. The voltage must match the value indicated on the plate.

Connect the appliance to the mains via an omnipolar switch (see chapter "Installation/Technical characteristics/Electrical diagram").

Model DDLE Basis 18/21/24 - Power selector switch

In the as-delivered state, the power selector switch is set to the 21 kW position. To switch to another single-phase power level, the following steps must be performed:

Move the power selector switch to the position corresponding to the selected power (for the power selection and the device's protective devices, see chapter "Installation/Technical characteristics/Parameter table"). Mark the selected power on the factory plate with a cross. Use a ballpoint pen for this.

Mounting the lower part of the rear panel

Mount the lower part of the rear panel. Secure the lower part of the rear panel.

Align the installed device by loosening the mounting screws, adjusting the electrical cable and the rear panel, and then retightening the mounting screws. If the rear panel does not fit flush against the wall, the device can be secured from below with two additional screws (see chapter "Installation/Alternative mounting options/On-wall installation, open mounting").

10.2 Alternative mounting options

10.2.1 Electrical connection from below, concealed wiring

Install the cable grommet.

Material damage If an incorrect hole for the cable grommet was drilled by mistake, a new rear panel must be used!

Insert the cable gland into the hole in the rear panel. If there are sharp edges, protect them with a grommet.

Disconnect the device from the power supply before mounting the rear panel on the wall and cable gland. Insert the flat cable into the cable gland and attach the cable gland to the bracket on the rear panel so that both brackets snap into place with the protruding tab. Press the cable firmly against the panel. Lock the screw collar by turning it 90° to the right.

10.2.2 Electrical connection, exposed wire

Note

With this connection method, the degree of protection of the device changes.

Change the data on the factory nameplate. Pull out the "IP 25" marking and mark the "IP 24" box with a cross. Use a ballpoint pen for this.

Material damage

If the wrong hole for the cable gland was drilled by mistake, a new rear panel must be used.

Drill the required through holes in the rear panel (see chapter Installation / Technical data / Dimensions and connections). If there are sharp edges, protect them with a grommet.

Route the power cable through the cable gland and connect this cable to the terminal block of the mains.

10.2.3 Connection of the load shedding relay

The load shedding relay in the electrical distribution device must be used together with other electrical appliances, for example, with electric storage water heaters. Load shedding is carried out by the operation of the water heater.

Material damage

Connect the device on which the load shedding relay is installed to the terminal block of the mains in the device (see chapter Installation / Technical data / Electrical connection diagrams).

10.2.4 Installation under the sink, water connection pipes from above

For mounting the device under the sink with top pipe connections and water connection, use the mounting kit. Carefully make the through holes for the pipes, then install the pipes from the kit.

10.2.5 CONNECTION TO WATER SUPPLY FOR OPEN MOUNTING

Note

With this connection method, the device's back panel will change.

Change the data on the factory nameplate. Pull out the "IP 25" marking and mark the "IP 24" box with a cross. Then use the ball handle.

26

To close the openings for concealed mounting, install the plugs with seals. Perform the installation according to the appropriate mixer pressure.

2006 2007 2008

Insert the lower part of the back panel into the surface part and snap it in. Connect the pipes to the device. Secure the back panel by screwing it from below with two mounting screws.

Material damage

If by mistake the wrong hole for the cable ducts was made, a new back panel must be used!

Carefully break out the through holes in the device cover. If sharp edges are present, protect them with a grommet.

Push the lower part of the back panel under the pipes of the mixer connection and fix the lower part of the back panel. Connect the pipes to the device.

10.2.6 Working with preheated water

When installing central thermostatic valves, the maximum supply temperature is limited.

10.2.7 Temperature limiter

Carefully

During operation, using a preheated device may be ineffective. In this case, the limiter is set by the central thermostatic valve.

On the inside of the device cover, a temperature limit of 43 °C can be set.

Connect the plug of the locking device to the temperature limiter set to 43 °C.

After setting the temperature limiter, the temperature selection is only possible in the range from 0 to 43 °C.

10.3 Completion of installation

Open the shut-off valves in the double pipe or in the cold water supply pipeline.

11. Commissioning

WARNING: Risk of electric shock

The device may only be put into operation by a specialist, provided that the safety regulations are observed.

11.1 Initial commissioning

Open and close all connected draw-off valves several times until all air has escaped from the water pipes and the device. Check for leaks. Activate the pressure relief valve by firmly pressing the release button (the pressure relief valve is supplied in the deactivated state). Connect the temperature regulator plug to the electronics unit. Install the device cover. The device cover must be secured with the latch. Check the position of the device cover. Apply the mains voltage. Perform temperature calibration. Turn the temperature regulator to the right and left as far as it will go.

building 2

129343 Moscow

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Switzerland

STIEBEL ELTRON AG

Industrie West

Gass 8

5242 Lupfig

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