User manual

1592022700 User manual iCHILL 200CX Rel. 1.0 22/04/2009
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.
14.6 MODE WITH DIGITAL INPUT CONFIGURATED AS HEAT PUMP REQUEST
Unit configured as motocondensing CF03 = 1
Digital input heat pump 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 OnH
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.
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.
15 COMPRESSOR THERMOREGULATION
15.1 THERMOREGULATION PARAMETER DESCRIPTION
Par. ST01 Chiller Setpoint
It allows to set the chiller working temperature within the range ST02..ST03.
Par. ST02 Minimum setpoint limit in chiller.
The user can not program a setpoint value lower than ST02, the range is –50 °C..ST01.
Par. ST03 Maximum setpoint limit in chiller.
The user can not program a setpoint value higher than ST02, the range is ST01..70°C.
Par. ST04 Heat pump setpoint
It allows to set the Heat pump working temperature within the range ST05..ST06.
Par. ST05 Minimum setpoint limit in heat pump.
The user can not program a setpoint value lower than ST05, the range is –50 °C..ST04.
Par. ST06 Maximum setpoint limit in heat pump
The user can not program a setpoint value higher than ST06, the range is ST01..70°C.
Par. ST07 Regulation band width in chiller mode.
The configured resources are distributed inside the regulation band.
Example Unit configured with 2 circuits, 1 compressors per circuit and thermoregulation controlled by the evaporator inlet NTC probe.
Chiller setpoint: evaporator inlet water = 12°C, evaporator outlet water 7°C: when the evaporator inlet water is 12°C all the compressor
outputs are on while when the evaporator inlet water is 7 °C all the compressors are OFF.
Thermoregulation parameters: Par. ST01 = 7 °C / Par. ST07 = 5 °C
Functioning: the regulation band ST07= 5 °C is divided by the number of resources 2 compressors therefore the step for each resource
is 2.5°C, each2.5°C if the temperature is increasing or decreasing one of the resource is turned on or off.
Par. ST08 Regulation band in heat pump mode
The configured resources are distributed inside the regulation band.
Example Unit configured with 2 circuits, 1 compressors per circuit and thermoregulation controlled by the evaporator outlet NTC probe.
Chiller setpoint: evaporator inlet water = 40°C, evaporator outlet water 45°C: when the evaporator outlet water is 40°C all the
compressor outputs are on while when the evaporator outlet water is 45 °C all the compressors are OFF.
Thermoregulation parameters: Par. ST04 = 40 °C / Par. ST08 = 5 °C
Functioning: the regulation band ST08=5 °C is divided by the number of resources 2 compressors therefore the step for each resource
is 2.5°C, each 2.5°C if the temperature is increasing or decreasing one of the resource is turned on or off.
Par. ST08 Regulation band in heat pump mode
The configured resources are distributed inside the regulation band.
Par. ST09 Defines the thermoregulation probe in chiller.
0= NTC Temperature probe of the evaporator inlet
1= NTC Temperature probe of the evaporator circuit 1
2= NTC Temperature probe of the evaporator circuit 2
3= NTC Temperature probe of the common evaporator
4= Probe temperature of the remote keyboard 1
5= Probe temperature of the remote keyboard 2
The ST10 parameter defines the thermoregulation probe of the unit with heat pump control
0= NTC probe temperature of the evaporator inlet
1= NTC probe temperature of the evaporator 1 outlet
2= NTC probe temperature of the evaporator 2 outlet
3= NTC probe temperature of the evaporator common outlet
4= Probe temperature of the remote keyboard 1
5= Probe temperature of the remote keyboard 2
6= NTC probe temperature of the condenser common inlet
7= NTC probe temperature of the condenser 1 inlet
8= NTC probe temperature of the condenser 2 inlet
9= NTC probe temperature of the condenser 1 outlet
10= NTC probe temperature of the condenser 2 outlet
11= NTC probe temperature of the condenser common outlet
ATTENTION