62 EC-30C | 1.00.02 +49 2102 935 888 www.mc-techgroup.com
10.3 Changing the 0-20 V-Module
DANGER
Dangerous voltage!
Risk of death by electric shock!
Do not open the device!
Disconnect power supply before opening the device for access.
Make sure that all external power supplies, including all alarm and
control circuits, are disconnected.
If the self-test during start-up of the EC-30C fails and the fourth icon shown on the screen
is a ‘Test failed’-icon, or if an alarm signal with the codes 14 or 24 is issued during operation,
the 0-20 V-Module has to be changed. If a warning message with the codes 13 or 23 is
shown, changing the module is not yet necessary, but recommended, to avoid break-
down of the unit.
Follow these steps to change the 0-20 V-Module:
Disconnect the cooler from the power supply.
Unscrew and open the front panel, but keep it hinged to the rail at the bottom
plate.
Disconnect the electrical connectors X12, X13, X16, X17 and X18.
Unscrew the electronics cover from the front panel and remove it.
Carefully unplug the connector between main board and 0-20 V-Module
electronics.
Open the two screws which are holding the 0-20 V-Module. Replace the
module.
Carefully plug in the connector between main board and the 0-20 V-Module
electronics.
Fasten the electronics cover back to the front panel again.
Connect the plugs X12, X13, X16, X17 and X18 again.
Close and secure the front panel.
Turn on the device and check the result.
To Next Page
Loading...
