VARISTAR LHX 20
Maintenance and Repair
Cooling module 60714-050
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31
R2.1, May 10, 2012
7.4.6 Replacing the temperature sensors
Hazardous voltage!
Under certain circumstances during commissioning, completion, maintenance
and service it is necessary to open the enclosure.
Some exposed parts may be under live voltage. These works must therefore
only be carried out by specially trained technical personnel.
Always disconnect the supply voltage before opening the module!
The cooling module contains 5 temperature sensors.
The temperature sensors for the air exit temperature (F1/F2) are situated be-
tween the heat exchanger and the droplet separator.
To remove these sensors the fan unit and droplet separator must be removed.
Temperature sensors for the air inlet temperature (F3/F4) are situated behind
the air inlet grille and are directly accessible.
The water inlet temperature sensor is situated on the pipework near the control
valve.
All temperature sensors are connected to the control board (X11 connector,
see arrow).
The control board is situated beneath the cover on which the display is
mounted.
Summary of Contents for 60714-050
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