Operating Instructions STBW 225
May 2022
Seite 3
5. Assembly and Installation
Before installing the device, make sure that it is not damaged or has moisture damage,
which may be due to improper transport or storage have arisen.
The housing protection class is IP54. It must be ensured that the housing remains free of
deposits and moisture. The clamps and connecting cables are regularly to be checked for
firm seating and must be free from vibrations.
The ambient temperature limits specified in the technical data must be observed.
5.1 Installation
The thermostats can be installed in the installation position according to DIN 16257 NL 0….NL 90.
The capillary tube must not be shortened or kinked.
6. Electrical Connection
The electrical connection may only be made in a voltage-free state.
The electrical conductors are connected in accordance with the circuit
diagram. The stripping length of 11-13 mm must be observed.
Wire end sleeves must be used when using flexible conductors.
7. Cleaning
Cleaning the opened device is prohibited. dust and dirt with a dry,
solvent-free and soft cloth.
8. Dismantling / Disposal
De-energize before dismantling and secure against being
switched on again.
Dismantle the device and dispose of it properly.