Operating instructions
cod. 1592001300
1592001300 XC440C gb r1.0 07.06.2004.doc
rel. 1.0
Page
9 / 28
3.
Check and if necessary modify the set point limits (LSE and HSE par.).
1.
Push the SET key for more than 2 seconds;
2.
The Lower display will show the “SEtC” label for compressor/“SEtF” label
for fans, will the Upper display will show its value flashing.
3.
To change the Set value push the
9
9
or
8
8
within 30s.
4.
To memorise the new value and pass to the normal display push the SET
key.
To exit: push the SET key or wait for 30 without pressing any keys.
6. Parameters programming
6.1 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.
6.2 How to enter in parameters list “Pr2”
The “Pr2” parameter list is protected by a security code (Password).
SECURITY CODE is
321
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
9
9
or
8
8
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” +
8
8
. When a parameter is present also in “Pr1” decimal point of the lower display is on.
6.3 How to change parameter values
1. Enter the Programming mode.
2. Select the required parameter with
9
9
or
8
8
.
