AEG DDLE LCD 18 / 21 / 24 / 27 - Инструкция по эксплуатации - Страница 26

26

!

Only trained and authorised experts must install the device and make the electrical connection under full 
observance of these installation instructions.

2.1 

Equipment layout 

A

 - 

O

1 Temperature selector with LCD

16 Flow sensor

2 Device cap

17 Temperature selector plug “set T”

3 Lower section, back panel

18 Type plate

4

DHW฀compression฀itting

19 Mounting bracket

5

Cold฀water฀compression฀itting

20 Stud for mounting bracket

6 Top, back panel

21 Cable grommet (power cable from above/below)

7 Electronics

22 Twin nipple (cold water with shut off valve)

8 Coding card for output selection for  

the DDLE LCD 18/21/24

23 Flat packing

9

LED฀diagnostic฀“trafic฀light”฀for฀operating฀

and fault indications

24

Screws/rawl฀plugs฀for฀ixing฀the฀back฀panel฀in฀

case฀of฀water฀connection฀on฀inished฀walls

10 Plug-in position from the temperature 

selector cable

25 Flow limiter, only for theDDLE LCD 18/21/24 

(secured to the cold water pipe)

11 Safety pressure limiter (AP 3) with reset 

button

26 Installation and operating instructions

12 Mains terminal

27 Installation template

13 Knock-out for power connection from above

28 Sieve

14 Fixing toggle

29 Flow limiter

15 Heating system

30

Proile฀washer

31 Support panel

2.2 

Brief description

This electronically regulated instantaneous water heater is a pressure device for the heating of cold water to 
DIN 1988 that can supply one or several draw-off points. 
The bare wire heating system is suitable for hard and soft water areas (for application range, see  
"5.2 Application areas").

2.3 

Important information

•฀

Air฀in฀the฀cold฀water฀supply฀can฀destroy฀the฀bare฀wire฀heating฀system฀inside฀the฀equipment฀or฀can฀trip฀

the฀safety฀system.฀If฀the฀water฀supply฀to฀the฀instantaneous฀water฀heater฀has฀been฀interrupted,฀e.g.฀

because฀of฀a฀risk฀of฀frost฀or฀work฀on฀the฀water฀system,฀take฀the฀following฀measures฀prior฀to฀taking฀the฀

equipment฀back฀into฀use:

1.฀ Remove฀fuses฀or฀trip฀the฀appropriate฀MCBs.
2.฀ Open฀and฀close฀a฀tap฀downstream฀of฀the฀equipment฀several฀times,฀until฀all฀air฀has฀been฀vented฀

from฀the฀cold฀water฀supply฀line฀upstream฀and฀the฀equipment.

3.฀ Replace฀the฀fuses฀or฀reset฀the฀relevant฀MCBs.
฀ The฀instantaneous฀water฀heater฀is฀equipped฀with฀an฀air฀detector฀which,฀to฀the฀greatest฀extent,฀

prevents฀damage฀to฀the฀heating฀system:

฀ If,฀during฀operation,฀air฀is฀drawn฀into฀the฀instantaneous฀water฀heater,฀the฀equipment฀shuts฀down฀

the฀heating฀load฀for฀one฀minute,฀thereby฀protecting฀the฀equipment.

•฀ Taps
฀ –฀ Direct฀draw-off฀tap฀for฀instantaneous฀water฀heater฀ADEo฀70฀WD฀-฀mono-lever฀mixer฀with฀changeover฀฀

฀ bath/hand฀shower,฀part฀no.฀18฀39฀34.

฀ -฀ The฀installation฀may฀be฀carried฀out฀using฀commercially฀available฀pressure฀tested฀taps.
฀ -฀ For฀thermostatic฀pressure฀tested฀valves,฀see฀information฀"1.6฀Recommended฀adjustment".
•฀ Always฀carefully฀observe฀all฀information฀in฀these฀operating฀and฀installation฀instructions.฀฀

These฀contain฀important฀information฀regarding฀safety,฀operation,฀installation฀and฀maintenance฀of฀this฀

equipment.

2.4 

Instructions and regulations

•฀ The฀installation฀(water฀and฀electrical฀work)฀and฀commissioning,฀as฀well฀as฀the฀maintenance฀of฀this฀

equipment,฀must฀only฀be฀carried฀out฀by฀a฀qualiied฀contractor฀in฀accordance฀with฀these฀instructions.

•฀ Perfect฀function฀and฀safe฀operation฀can฀only฀be฀assured฀when฀using฀original฀accessories฀and฀spare฀parts฀

intended for this equipment.

•฀ Observe฀all฀locally฀applicable฀instructions฀and฀regulations฀regarding฀water฀and฀electrical฀connections,฀such฀

as DIN VDE 0100, DIN 1988, DIN 4109, DIN 44851.

•฀ Observe฀all฀regulations฀of฀your฀local฀water฀and฀electricity฀supply฀companies.

For contractors

2. 

Installation instructions