Operating manual
Document nr. : 022091
Version : V2.3
MC 785-SC
Client : General
Page : 6 of 32
3.
Control
The MC785-SC is divided into two parts: on the left side is the compressor part (SUCTION) and on
the right side is the condenser part (DISCHARGE).
Both these parts are almost identical for control or readout.
The current status of the controller is shown on the front.
General:
Switching the controller on and off.
By pressing the
ON/OFF
key the controller can be switched on or off.
Password.
Before any change can be made, the controller will ask for a password.
In the SUCTION display appears “Code” and in the DISCHARGE display “- - - -“.
By pressing the
UP
or
DOWN
keys the last number will be changed, set it to the right number
(see parameter 999). By pressing the
SELECT
key the next number can be set (with the
UP
or
DOWN
keys). All four numbers must be set to the correct code (P 999) and, as a last action,
press the
SELECT
key.
If the code is correct, the settings of the controller can now be changed. The correct password
can be used for 2 minutes, after which time it deactivates so that the controller is locked
again.
The password can be set at the internal parameter P999 and is set on a default value as shown
in the parameter table.
Attention: Remember a set password well and keep it in a safe place!
Readout and setting the clock.
Press the
CLOCK
key to readout the time on the DISCHARGE display.
To set the clock, first readout the clock as above, then press the right
SELECT
key in order to
change the hours and minutes with the right
UP
and/or
DOWN
keys. Then press the right
SELECT
key again to change the day setting with the right
UP
and/or
DOWN
keys. Finally,
press the right
SELECT
key yet again to activate the new time setting.
If no key is pressed for 10 seconds, the controller will return to its normal function.
