Ruck ETA K 1200 V W, Assembly And Operating Manual

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English
Tel. +49 7930 9211-0 Fax +49 7930 9211-150
9.7.3 Safety temperature limiter for types with electrical heating coil
Fig. 20:
Position reset button STL
ETA K 1200 V (4 STB)
safety temperature limiter
reset button
Cover
Depending on the type and in case of a fault, the safety temperature limiter (STL) switches off the
electrical heating coil when the temperature reaches 75 °C. Once the safety temperature limiter has
been tripped, it has to be reset manually (see Fig. 19/20). Before resetting the STL and reinstalling
the electrical heating coil, the cause for tripping of the STL needs troubleshooting and debugging.
safety temperature limiter
reset button
•
Electricity warning (hazardous voltage)!
»
Failure to observe the hazard may result in death, injury or damage to property.
→
Before performing any work on conductive parts, always disconnect the unit completely
from the electricity supply and make sure that it cannot be switched back on again.
CAUTION: Tripping of the STL indicates no direct error message. (Possibly in conjunction
with error F18.)
Possible cause for tripping of the STL: - Regulation fault
- Relay fault
- Supply air fan failure
- Air duct is blocked
Cover
safety temperature limiter
reset button
Fig. 19:
Position reset button STL
ETA K 600 V (1 STB)