User manual

1592022700 User manual iCHILL 200CX Rel. 1.0 22/04/2009
Pg.30/114
CF51 = 1 External air temperature probe > St12+ ST13
the unit starts in chiller, External air temperature probe < ST12 the unit
starts in heat pump.
14 UNIT START - STOP
The unit start sotp can be done from one of the following operations:
• From keyboards
• RTC Time table
• Digital input configured as remote ON/OFF
14.1 START – STOP AND STAND- BY FROM KEYBOARD
TURN THE UNIT ON IN CHILLER OR HEAT PUMP MODE FROM THE KEYBOARD
Push and release the key allows to start in chiller mode if CF51=0, in heat pump if CF51=1. When the unit is running the
corresponding icon on the display is on.
INPORTANT: to change from chiller to heat pump and viceversa the unit must be set in stand-by before continuing.
Push and release the key allows to start in heat pump mode if CF51=0, in chiller if CF51=1. When the unit is running the
corresponding icon on the display is on.
INPORTANT: To change from chiller to heat pump and viceversa the unit must be set in stand-by before continuing.
STAND- BY ( OR UNIT OFF, NOT RUNNING)
The unit is considered in stand by when the leds and are both off. The stand-by is reached each time the Chiller or the Heat
Pump are turned off. During the stand by the user can:
• Show all the probe measurements
• Detect and reset the alarm events.
14.2 UNIT START- STOP FROM DIGITAL INPUT
Turn on or off the unit from digital input
Set the digital input as remote ON/OFF, depending on the input polarity it can generate the unit off
• The digital input overrides the keyboard command.
• The keyboard can run only if the digital input is not active.
• When the digital input is not active the instrument restore its status (had before the digital input activation).
14.3 MOTOCONDENSING UNIT START- STOP FROM DIGITAL INPUT
14.4 MODE WITH DIGITAL INPUT CONFIGURED AS THERMOREGULATION REQUEST
Unit configured as motocondensing CF03 = 1
Digital input thermoregulation request (motocondensing)
• With contact OFF unit on stand-by , the top display shows OFF
• With contact ON unit on stand-by , the top display shows On
With active contact select the chiller mode from the keyboard (the top display shows OnC) or heat pump (the top display shows OnH),
with the funcioning mode active the step is activated, the others, if availables, will be requested by configured digital input as resources
on circuits.
With active contact if the unit is being switched off by keyboard it can be switched on by keyboard. If the unit is being switched off by
keyboard, in order to switch on the unit from digital input it must be deactivated and activated.
14.5 MODE WITH DIGITAL INPUT CONFIGURED AS CHILLER REQUEST
Unit configured as motocondensing CF03 = 1
Digital input chiller request (motocondensing)
• With contact OFF unit on stand-by , the top display shows OFF
• With contact ON unit on stand-by , the top display shows OnC
With active contact unit on chiller mode is activated also a step, the others, if availables, will be requested by configured digital input as
as resources on circuits.