Service/maintenance
Chapter 7
OPERATION MANUAL
V2.3.0en/22.04.20//17.12
Heat Transfer Station eo
69
7
Service/maintenance
7.1
Messages from the temperature control unit
Messages output by the temperature control unit can be divided into various classes.
Follow the instructions displayed on the
>Touchscreen<
[88]. Once a message has been acknowl-
edged, a symbol is output on the
>Touchscreen<
[88]. Tapping the symbol takes you to an overview
of all messages in chronological order.
Displayed symbol:
7.2
Electrical fuse
The electrical device fuse is located in the
>Power supply<
[35]. Please check for a blown fuse in
case of an error (temperature control unit without function). Disconnect the temperature control
unit from the power supply if a fuse blows again immediately after resetting. Please contact Cus-
tomer Support. The telephone number can be found on page 80, section
. For more
details on the fuse, please refer to the spare parts list (from page 81 in section
).
7.3
Replacing the “Pilot ONE®”
Replacing the electronics while the temperature control unit is operating
MORTAL DANGER FROM FIRE
Stop an ongoing temperature control process.
Turn off the temperature control unit.
Also disconnect the temperature control unit from the power supply.
In case of fault, you can replace the “Pilot ONE” yourself. If you have questions or difficulties, please
contact your dealer, your local office or our Customer Support.
PROCEDURE
Turn off the temperature control unit.
Disconnect the temperature control unit from the power supply.
Release the
>Fixing screw for Pilot ONE<
[89] at the front of the housing.
Carefully pull the “Pilot ONE” away upwards.
Carefully insert the replacement “Pilot ONE”.
Close the
>Fixing screw for Pilot ONE<
[89] at the front of the housing.
Connect the temperature control unit to the power supply.
Turn on the temperature control unit.
Replacing the
“Pilot ONE”