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ADJUSTMENT AND CONTROL
Inputs and outputs
To monitor the unit, the controller has the following inputs and outputs :
• Analogue inputs :
4
• Digital inputs :
5
• Analogue outputs :
1
• Digital outputs :
6
DESCRIPTION
CHARACTERISTICS
Analogue inputs
AI1
SIW
water inlet probe
NTC temperature sensor (-50°C ÷ 99°C)
AI2
SUW
water outlet probe
NTC temperature sensor (-50°C ÷ 99°C)
AI3
SL
liquid probe
NTC temperature sensor (-50°C ÷ 99°C)
AI4
STAE / IN CF1
outside air probe / remote ON/OFF - S/W.-
demand limit-economy
NTC temperature sensor
(-50°C ÷ 99°C)
/ DIG IN
AI5
IN CF2
see AI5 on "digital inputs"
configured as digital input
- Input AI4 is factory-set as not enabled. Its configuration for specific use must be carried out at the time of installation according to the needs of the
moment, modifying the configuration by parameter.
- Input AI5 is factory-set as neutral and its configuration for specific use must be carried out at the time of installation according to the needs of the
moment, modifying theconfiguration by parameter.
Modification and parameter configuration operations must only be carried out by an authorised service centre or by competent personnel.
Digital inputs
DI1
TC1*
Thermal switch compressor 1 – thermo-
statted delivery 1 –high pressure switch
Digital input with voltage-free contact
DI2
TC2*
Thermal switch compressor 2 –thermo-
statted delivery 2 – high pressure switch
Digital input with voltage-free contact
DI3
PB +SEQ + TV
Low pressure sequence
meter + fan thermal switch
Digital input with voltage-free contact
DI4
TP1
Thermal switch pump 1
Digital input with voltage-free contact
DI5
TP2
Thermal switch pump 2
Digital input with voltage-free contact
DI6
P.diff.
Differential pressure switch
Digital input with voltage-free contact
AI5-IN DIG
Multiconf.
Remote ON/OFF - S/W.-demand limit-eco-
nomy
Analogue input configured as digital
*refer to section alarms. ER10-ER11 for more details
Note for input ID5 thermal switch pump 2.
If only one pump is used and only one thermal switch is required, ID5 can be used as an additional multiconf. input for Remote ON/OFF -
S/W.-demand limit-economy.
In this way it is possible to have both the
- remote ON/OFF, and
- S/W - demand limit – economy
- External probe
ID5 is factory-configured as pump 2 thermal switch. To modify the configuration, refer to the section “configurable inputs setting”.
