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14
MODIFICATION OF THE MANUFACTURER’S
PARAMETERS
The Manufacturer level allows the configuration of all controller
parameters, and therefore, in addition to the Assistance
parameters, the parameters corresponding to the management of
alarms, probes and valve configuration.
Procedure:
1. Press Esc one or more times to go to the standard display.
2. Select the A or B driver for which you want to change the
parameters.
3. Press Prg: the display shows a screen asking for the
PASSWORD;
4. Press ENTER and enter the password for the Manufacturer
level: 66, starting from the rightmost digit and confirm each
digit with ENTER.
5. If the value entered is correct, the list of parameter categories
appears:
• Configuration
• Probes
• Control
• Special
• Alarm configuration
• Valve
6. Press UP/DOWN to select the category and ENTER to access
the first parameter of the category.
7. Press UP/DOWN to select the parameter to be changed and
ENTER to move to the parameter value.
8. Press UP/DOWN to modify the value.
9. Press ENTER to save the new parameter value.
10. Repeat steps 7, 8 and 9 to modify the other parameters.
11. Press ESc to exit the Manufacturer parameter modification
procedure.
NOTES:
- The entry at the Manufacturer level allows modification of
all controller parameters.
- If an out-of-range value is entered during the configuration
of a parameter, it is not accepted and the parameter
returns to the value before the modification after a
short time.
- If no key is pressed, the display automatically returns to the
standard display after 5 minutes.
NETWORK ADDRESS
The network address assigns the controller an address for serial
connection to a supervisory system via RS485 and to a pCO
controller via pLAN, tLAN, Modbus®. It is a common parameter for
both driver A and B.
Parameter/description
Predet.
Min
Max
UM
Configuration
Network address
198
1
207
-
In the case of network connection of the RS485/Modbus® models,
it is also necessary to set the communication speed in bits per
second, by means of the parameter “Network settings.
REFRIGERANT
The type of refrigerant is essential for the calculation of superheat.
It is also used to calculate the evaporating and condensing
temperature from the pressure probe measurement.
Parameter/description
Predet.
Configuration
Refrigerant
R404A
VALVE
By setting the valve type, all the control parameters are automatically
defined based on the construction data of each model. In the
manufacturer’s programming mode it will then be possible to fully
customize the control parameters in case the valve used is not
present in the predefined list. In such a case, the controller will
indicate the modification by marking the valve type as “Custom”.
Parameter/description
Predet.
Configuration
Valve:
CAREL
1= CAREL ExV;
EXV
- If no key is pressed, the display automatically returns to the
standard display after 5 minutes.
- To set a negative value, position with Enter on the leftmost
digit and press Up/Down.
NOTES:
- The configuration of two CAREL ExV valves connected
together must be selected whenever two CAREL
ExV valves are to be connected to the same terminal,
to achieve parallel or complementary operation;
- As indicated above, regulation is only possible with CAREL
ExV valves;
- Not all CAREL valves can be connected.
Control
