product operating instruction
E.G.O. Germany (E.G.O. Elektro-Gerätebau GmbH)
document id.: 90.60145.653-001-02-A / state: 230 - released
designation: Thermostats 55.xxxxx.xxx / 56.xxxxx.xxx
2.3.17 Temperatures too high or too low
Exceeding the maximum permissible sensor temperature according to the type drawing may lead to
malfunctions and even destruction of the thermostat.
When designing the application, note and adhere to the maximum sensor temperature specified in
the type drawing. Pay particular attention to post heat.
Exceeding the maximum permissible ambient temperature in the area of the housing may lead to
malfunctions and even destruction of the thermostat.
When designing the application, observe and adhere to the maximum ambient temperature
specified in the type drawing and the approved technical data.
The following dangers exist if the temperature falls below the minimum permissible according to the
type drawing:
If the sensor is suddenly heated up from being undercooled, the sensor can burst.
The break protection can be triggered unintentionally.
When designing the application, observe and adhere to the minimum ambient and sensor
temperature specified in the type drawing.
2.3.18 Too high pressure on the sensor
Exceeding the maximum permissible pressure at the sensor may lead to malfunctions and even
destruction of the thermostat.
Note the maximum permissible sensor pressure:
– Boiler sensor: 20 bar
– Tube sensor: 30 bar
– High pressure sensor: 250 bar
2.3.19 Changes and readjustments on the thermostat
Changes and readjustments to the thermostat may lead to malfunctions.
Never change the E.G.O. factory setting.
2.3.20 Blocking of the switching mechanism
Blocking of the switching mechanism, in particular through manipulation of the reset mechanism, may
lead to malfunctions.
Never change the switching mechanism or the reset mechanism.
Make sure that the reset button always moves freely and is not blocked by surrounding components
or foreign bodies.
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