70040-082_01-A.docx
The information described below are useful for the user staff. The faults that
require the intervention of a refrigeration engineer must be carried out only by
specialized staff. Follow all electrical legislation when working on the unit based on
valid laws of the countries were the unit is placed.
4.4. Entering a password to access to Installation level “Level
1”
To view parameters visible for the given password, open folder PASS (press esc and set together
[esc+set] from the main display and search the folder “PASS”using the up/down keys) and set the
PASS value (54).
In main view, press Prg to access the
programming menu.
Label PAr appears
Pressing the two keys will open the menu
containing the list of folders. Use the "up" and
"down" keys to scroll the list until you find the
PASS folder.
Press the set key to open the PASS folder.
Enter the password (54) from here, press the set
key and exit. Now open and view parameters to
change a value (see chapter Parameters).
WARNING: Turn off and then on again whenever you change the configuration parameters
to prevent malfunctioning on configuration and / or ongoing timings.
Note: To change the setpoint please refer to chapter Status / Setpoint menu
5. Errors table
Water Temperature Probe
Fault
Automatic (after replacing/repairing of the
probe)
Fluid min Temperature
alarm1
AUTO (after increase of the temperature
t>5°C)
Fluid max Temperature
alarm1
AUTO (after temperature drops t<40°C)
* depends on the problem
1showed only with option installed
6. Cooling
The regulator gets the temperature measure from the thermoregulation probe; the setpoint is 20°C ± 2°C for Water+Glycol
units.
Regulation of the 3 way valve is done by PID regulator to remove the error between measure from the thermoregulation
probe and set-point.
