STIEBEL ELTRON DHE 18 - Installation - Safety; Installation Safety Responsibility and Contractor Use; Shower Operation and Preheated Water Safety; Inlet Temperature, Pressure Limits, and Electrical Safety

INSTALLATION
Safety
72 | DHE www.stiebel-eltron.com
INSTALLATION
7. Safety
Only a qualified contractor should carry out installation, commis-
sioning, 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 tem-
peratures may damage the appliance. You can limit
the maximum inlet temperature by installing a central
thermostatic valve (see chapter "Appliance description/
Accessories").
WARNING Electrocution
This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly exceed60VDC.
7.2 Shower operation
CAUTION Burns
 When supplying a shower, set the internal an-
ti-scalding protection to 55°C or less; see chapter
"Commissioning/ Preparations".
CAUTION Burns
If operating with preheated water, e.g. if using a solar
thermal system, observe the following information:
- The DHW temperature may exceed the set tempera-
ture or a set temperature limit.
- The dynamic anti-scalding protection between the
appliance and a wireless remote control may not be
effective.
 In such cases, limit the temperature with an up-
stream central thermostatic valve (e.g. ZTA3/4).
7.3 Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
- The IP24/ IP25 protection rating can only be ensured with a
correctly fitted cable grommet.