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3.1
Electrical connections .................................................................................................................................................................6
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The LED display.........................................................................................................................................................................7
4.2
Operating indications..................................................................................................................................................................7
4.3
Keypad........................................................................................................................................................................................7
&RQILJXUDWLRQRIWKHFRQWUROOHUV 5.1
Configuration of the controllers as Master or Slave: ..................................................................................................................9
5.2
Selecting the principal operating parameters ..............................................................................................................................9
5.3
Other important parameters ......................................................................................................................................................10
5.4
Important parameters for all units (Master/Slave).....................................................................................................................10
5.5
List of parameters to be checked during installation.................................................................................................................11
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Accessing the parameters..........................................................................................................................................................12
6.2
Modifying the parameters .........................................................................................................................................................12
6.3
Exiting the programming procedure .........................................................................................................................................13
6.4
Manual reboot of the controllers...............................................................................................................................................13
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7.1
Remote control layout...............................................................................................................................................................14
7.2
Introduction. .............................................................................................................................................................................14
7.3
Technical specifications............................................................................................................................................................15
7.4
Description of the keypad .........................................................................................................................................................15
7.5
The PSW button and the command buttons..............................................................................................................................16
7.6
How to use the remote control ..................................................................................................................................................16
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10.1
Network defrost for multiplexed systems..................................................................................................................................20
10.2
Remote alarm signals. ...............................................................................................................................................................20
10.3
The network auxiliary relay. .....................................................................................................................................................20
10.4
Configuring a network by “downloading” the parameters from the Master unit. .....................................................................20
10.5
Functions available to the RS485 serial supervisory system.....................................................................................................21
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Configuration parameters..........................................................................................................................................................22
11.2
Parameter categories .................................................................................................................................................................22
11.3
The password ............................................................................................................................................................................22
11.4
/ = parameters for the management of the temperature probes..................................................................................................23
11.5
r = parameters for temperature regulation.................................................................................................................................25
11.6
c = parameters for compressor management .............................................................................................................................27
11.7
d = Parameters for defrost management....................................................................................................................................30
11.8
A = parameters for alarm control ..............................................................................................................................................33
11.9
Digital inputs and description of the interface commands for the supervisor. ..........................................................................34
11.10
F = parameters for controlling the evaporator fans...............................................................................................................38
11.11
H = other settings .................................................................................................................................................................39
2SHUDWLQJVWDWHVRIWKHXQLWV 12.1
Sequence of the main phases ....................................................................................................................................................41
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Defective or incorrect operation ...............................................................................................................................................42
13.2
Description of the signals flashing on the display of the MPX.................................................................................................42
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15.1
Technical characteristics:..........................................................................................................................................................45
15.2
Temperature/Resistance ratios for NTC thermistors .................................................................................................................46
15.3
View of the instrument .............................................................................................................................................................47
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16.1
MPX contact rear view: ............................................................................................................................................................48
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