PRO3 Side Mount Packaged Refrigeration System
Max. & Min. Temperature Memorization
How to see the min. temperature
1.Press and release the DOWN key.
2.The “Lo” message will be displayed followed by the minimum temperature recorded.
3.By pressing the DOWN key again or by waiting 5 seconds the normal display will be restored.
How to see the max. temperature
1.Press and release the UP key.
2.The “Hi” message will be displayed followed by the maximum temperature recorded.
3.By pressing the UP key again or by waiting 5 seconds the normal display will be restored.
How to reset the max and min temperature recorded
1.Hold press the SET key for more than 3 seconds, while the max. or min temperature is displayed. (rSt message will be displayed)
2.To confirm the operation the “rSt” message starts blinking and the normal temperature will be displayed
The Hidden Menu
The hidden menu Includes all the parameters of the instrument.
How to enter the hidden parameters
1.Enter the Programming mode by pressing the Set + DOWN keys for 3 seconds (the °C or °F LED starts blinking).
2.Release the keys, then push again the Set+DOWN keys for more than 7 seconds. The Pr2 label will be displayed immediately followed from the HY parameter.
NOW YOU ARE IN THE HIDDEN MENU
3.Select the required parameter.
4.Press the SET key to display its value
5.Use UP or DOWN to change its value.
6.Press SET to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 15 seconds without pressing a key.
NOTE 1: If no parameter is present in Pr1, after 3 seconds the “noP” message is displayed. Keep the keys pushed until the Pr2 message is displayed.
NOTE 2: The set value is stored even when the procedure is exited by waiting the
Main Functions
How to see the
1.Push and immediately release SET key: the display will show the set point value
2.Push and immediately release the SET key or wait 5 seconds to display the probe value again
How to change the
1.Push SET for more than 2 seconds to change the
2.The value of the
3.To change the set value push UP or DOWN arrows within 10 seconds
4.To memorize the new set point value push SET key again or wait 10 seconds
How to start a manual defrost
Push DEF key for more than 2 seconds and a manual defrost will start.
How to change a parameter value
To change a parameter value:
1.Enter the Programming mode by pressing the SET + DOWN keys for 3 seconds (the °C or °F LED starts blinking)
. Select the required parameter. Press SET to display its value.
3.Use UP or DOWN to change its value
4.Press SET to store the new value and move to the following parameter
To exit: Press SET + UP or wait 15 seconds without pressing a key
NOTE: The set value is stored even when the procedure is exited by waiting the
How to move a parameter from the hidden menu to the first level and vice versa
Each parameter present in the HIDDEN MENU can be removed or put into “THE FIRST LEVEL” (user level) by pressing SET + Down.
In HIDDEN MENU when a parameter is present in First Level the decimal point is on.
How to lock the keyboard
1.Keep the UP + DOWN keys pressed for more than 3 seconds.
2.The “POF” message will be displayed and the keyboard will be locked. At this point it will be possible only to see the set point or the MAX o Min temperature stored
3.If a key is pressed more than 3 seconds the “POF” message will be displayed.
To unlock the keyboard
Keep the UP + DOWN keys pressed for more than 3 seconds, until the “Pon” message is displayed.
The continuous cycle
When defrost is not in progress, it can be activated by holding the UP key pressed for about 3 seconds. The compressor operates to maintain the ccS set point for the time set through the CCt parameter. The cycle can be terminated before the end of the set time using the same activation key UP for 3 seconds.
The on/off function
With “onF = oFF”, pushing the ON/OFF key, the instrument is switched off. The “OFF” message is displayed. In this configuration,
To switch the instrument on, push again the ON/OFF key.
WARNING: Loads connected to the normally closed contacts of the relays are always supplied and under voltage, even if the instrument is in stand by mode.
PRO3 Side Mount Packaged Refrigeration System Installation and Operations Manual, May 2008 | 9 |
