Safety; General Safety Instructions; Instructions, Standards And Regulations; Appliance Description - Stiebel Eltron ETW 120 Plus Utilisation Et Installation

INsTALLATIoN

safety

INsTALLATIoN
9. Safety
Only a qualified contractor should carry out installation, commis-
sioning, maintenance and repair of the appliance.
9.1

General safety instructions

We guarantee trouble-free function and operational reliability only
if original accessories and spare parts intended for the appliance
are used.
9.2

Instructions, standards and regulations

WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
WARNING Electrocution
The connection to the power supply must be in the form
of a permanent connection.
Ensure the appliance can be separated from the power
supply by an isolator that disconnects all poles with at
least 3 mm contact separation.
Material losses
Observe the type plate. The specified voltage must match
the mains voltage.
Design all materials in accordance with the rated con-
sumption of the appliances.
Material losses
Secure the appliance to the wall or floor in such a way
as to ensure stability.
Material losses
- Never install the appliance directly below a wall
socket.
- Ensure that the power cable is not in contact with
any appliance components.
Material losses
Observe all applicable national and regional regulations
and instructions.
38 | ETW 120-480 Plus

10. Appliance description

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1 Cover panel
2 Heating element
3 Room temperature sensor
4 Fan (M1)
5 Protective temperature controller (N5)
6 Air intake
7 Air discharge
8 Insulation
9 Storage blocks
10 Front panel and inner front panel

10.1 Function

The storage blocks are heated via the heating elements between
the rows of storage blocks. The charge can be adjusted with the
charge controller. The start and duration of the charge time are
set by the local power supply utility (PSU).
Two integral protective temperature controllers and a high limit
safety cut-out prevent the appliance overheating. The protective
temperature controllers switch back on automatically but the high
limit safety cut-out must be switched back on by pressing the
button in its centre after the cause of the fault has been rectified.
The stored heat is transferred via a fan, and partially also via
the appliance surface. For this, indoor air is drawn in by the fan
through the air intake and released through the air ducts in the
storage blocks, which heat it.
Before the hot air produced in this way is released via the air dis-
charge grille, it is mixed with cooler indoor air via two mixing air
dampers, so the expelled air does not exceed the highest permis-
sible temperature. The position of the mixing air damper, and thus
the mixing ratio of the air, is regulated via a bi-metal controller.
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