For contractors
2.
Installation instructions
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
1 Temperature selector
2 Equipment cap
3 Base, back panel
4 DHW compression fitting
5 Cold water compression fitting
6 Top, back panel
7 Electronics
8 Coding card for output selection for
the DDLE Basis 18/21/24
9 LED diagnostic "traffic light" for operating
and fault indications
10 Plug-in position from the temperature
selector cable
11 Safety pressure limiter (AP 3) with reset
button
12 Mains terminal
13 Knock-out for power connection from above
14 Fixing toggle
15 High limit safety cut-out (STB) with reset
button
16 Heating system
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
!
2.4
Instructions and regulations
equipment, must only be carried out by a qualified contractor in accordance with these instructions.
intended for this equipment.
as DIN VDE 0100, DIN 1988, EN 806, DIN 4109, DIN 44851.
24
-
A
O
17 Flow sensor
18 Temperature selector plug "set T"
19 Type plate
20 Mounting bracket
21 Stud for mounting bracket
22 Cable grommet (power cable from above/below)
23 Twin nipple (cold water with shut off valve)
24 Flat packing
25 Screws/rawl plugs for fixing the back panel in
case of water connection on finished walls
26 Second flow limiter, only for the DDLE Basis
18/21/24 (secured to the cold water pipe)
27 Installation and operating instructions
28 Installation template
29 Sieve
30 Flow limiter
31 Profile washer