1592001440 XC645CX GB r3.4 31.10.2017.docx XC645CX 17/54
• This information is always available
• SSC1: Supervising Set for circuit 1, if supervising system is sending the set point
to the controller
• SSC2: Supervising Set for circuit 2, if supervising system is sending the set point
to the controller
• SStF: Supervising Set for fan, if supervising system is sending the set point to
the controller
• SH: Superheat
EXIT: push the SET+UP keys together.
11. Parameters programming
11.1 How to enter the “Pr1” parameter list
To enter the “Pr1” parameter list, user accessible, operate as follows:
1. Hold pressed the SET and DOWN key for 3s.
2. The controller displays the name of the parameter in the Lower display, its value on the Upper
display.
3. Press the “SET” key: the value of the parameter will start blinking.
4. Use “UP” or “DOWN” to change the value.
5. Press “SET” to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 30s without pressing a key.
NOTE: the set value is stored even when the procedure is exited by waiting the time-out to expire.
11.2 How to enter in parameters list “Pr2”
The “Pr2” parameter list is protected by a security code (Password).
SECURITY CODE is 3210
To access parameters in “Pr2”:
1. Enter the “Pr1” level.
2. Select “Pr2” parameter and press the “SET” key.
3. The flashing value “0 ---” is displayed.
4. Use o or n to input the security code and confirm the figure by pressing “SET” key.
5. Repeat operations 2 and 3 for the other digits.
NOTE: each parameter in “Pr2” can be removed or put into “Pr1” (user level) by pressing “SET”
+ n. When a parameter is present also in “Pr1” decimal point of the lower display is on.
11.3 How to change parameter values
1. Enter the Programming mode.
2. Select the required parameter with o or n.
3. Press the “SET” key the value start blinking.
4. Use o or n to change its value.
5. Press “SET” to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 15s without pressing a key.
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