Operating Instructions and Installation Instructions

20
Installation - for contractors
INSTALLATION
7. 
Only a qualied contractor should carry out installation,
commissioning, maintenance and repair of the appliance.
7.1 
We guarantee trouble-free function and operational relia-
bility only if original accessories and spare parts intended
for the appliance are used.
!

 Higher
  


7.2 
Note
-

◦ The protection rating IP 25 (hoseproof) can only be
ensured with a correctly tted cable grommet.
◦ The specic electrical resistance of the water must
not fall below that stated on the type plate. In a linked
water network, observe the lowest electrical water
resistance (see chapter "Specication / Application
areas / Conversion table"). Your water supply utility
will advise you of the specic electrical water resist-
ance or conductivity.
8. 
8.1 
The following are delivered with the appliance:
◦ Wall mounting bracket
◦ Threaded stud for wall mounting
◦ Installation template
◦ 2 twin connectors (cold water with shut-off valve)
◦ Flat gaskets
◦ Cable grommet (power cable from above / below)
◦ Screws / rawl plugs for additional securing of the
back panel when making water connections on n-
ished walls
9. 
9.1 
!


frost.
» Always install the appliance vertically and near the
draw-off point.
The appliance is suitable for undersink and oversink in-
stallations.

26_02_02_1345
1
2
1 Cold water inlet
2 DHW outlet

12
26_02_02_1344
1 Cold water inlet
2 DHW outlet
Note
»  

9.2 
◦ Never operate with preheated water.
◦ A safety valve is not required.
◦ Safety valves are not permissible in the DHW pipe.
» Flush the water line thoroughly.
» Ensure that the ow rate for switching on the appli-
ance is achieved (see chapter "Specication / Data
table", On). Increase the mains water pressure if the
required ow rate is not achieved with the draw-off
valve fully opened.

Use appropriate pressure taps. Open taps are not per-
mitted.
Thermostatic pressure valves must be suitable for hydrau-
lically controlled instantaneous water heaters.
Note

 


◦ Cold water inlet pipe:
Galvanised steel pipe, stainless steel pipe, copper
pipe or plastic pipe
◦ DHW outlet pipe:
Stainless steel pipe, copper pipe or plastic pipe