Alternative Installation Methods; Electrical Connection On Finished Walls; Connecting A Load Shedding Relay; Water Installation On Finished Walls - Stiebel Eltron DEL 18/21/24 Plus Utilisation Et Installation

INsTALLATIoN

Alternative installation methods

13.3 Electrical connection on finished walls

Note
This type of connection changes the IP rating of the ap-
pliance.
f Change the type plate. Cross out "IP 25" and mark f
the box "IP 24". Use a ballpoint pen to do this.
30
1 Cable grommet
Electrical connection on finished walls
Positioned in lower section of appliance
Positioned in upper section of appliance
f Prepare the power cable. Fit the cable grommet. f
Material losses
!
If you break out the wrong knock-out in the back panel/
appliance cover by mistake, you must use a new back
panel/appliance cover.
f Cleanly cut and break out the required cable entries from the f
back panel and appliance cover (for the positions, see chap-
ter "Specification / Dimensions and connections"). Deburr any
sharp edges with a file.
f Route the power cable through the cable grommet. f
f Connect the power cable to the mains terminal. f

13.4 Connecting a load shedding relay

Install a load shedding relay in the distribution board in conjunc-
tion 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 "Specification / Wiring diagram").

13.5 Water installation on finished walls

Note
This type of connection changes the IP rating of the ap-
pliance.
f Change the type plate. Cross out "IP 25" and mark f
the box "IP 24". Use a ballpoint pen to do this.
www.stiebel-eltron.com
A
1
Dimension A
160
110
24
18 Nm
f Fit water plugs with gaskets to seal the concealed connec- f
tions. All taps obtained as accessories are supplied with
plugs and gaskets as standard. For pressure taps other than
those recommended by us, plugs and gaskets can be ordered
as accessories.
f Fit a suitable pressure tap. f
f Push the lower back panel section under the connection f
pipes of the tap and push it into the back panel.
f Secure the connection pipes to the tee and the 3-way ball f
shut-off valve.
Note
You can break off the pipe fitting tabs on the lower back
panel section if required.
1
1 Tab
13.6 Water installation on finished walls with
solder/press-fit fittings
Note
This type of connection changes the IP rating of the ap-
pliance.
f Change the type plate. Cross out "IP 25" and mark f
the box "IP 24". Use a ballpoint pen to do this.
You can connect copper or plastic pipes using the accessories
"solder fitting" or "press-fit fitting".
With "solder fitting" with threaded fitting for 12 mm copper pipes,
proceed as follows:
f Push the union nuts over the connection pipes. f
f Solder the inserts to the copper pipes. f
f Push the lower back panel section under the connection f
pipes of the tap and push it into the back panel.
f Secure the connection pipes to the tee and the 3-way ball f
shut-off valve.
Note
Observe the tap manufacturer's instructions.
19
5 Nm
DEL Plus | 37