1592015820 User manual IC260_261L_D DUO FW1.9 rel. 1.0
Pag. 51 of 149
19. COMPRESSOR REGULATION
CF94
Working mode of the compressor
0 = chiller and heat pump
1 = only chiller
2 = only heat pump
0
2
It is possible to decide how many compressors are used in chiller, heat pump and sanitary water production.
o
parameter CO76: number of compressors to use in chiller
o
parameter CO77: number of compressors to use in heat pump
o
parameter CO78: number of compressors to use in sanitary water
In case of contemporary production of sanitary water and chiller the number of compressors is defined
by sanitary water request.
19.1 Compressor Security Time
o
CO01 Minimum ON time of the compressor after switching on
o
CO02 Minimum OFF time of the compressor after switching off
o
CO91 Minimum time between two switch on of the same compressor
20. CHILLER / HEAT PUMP REGULATION
20.1 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 cannot program a setpoint value lower than ST02, the range is –30 °C..ST01.
Par.
ST03
Maximum setpoint limit in chiller.
The user cannot 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 cannot program a setpoint value lower than ST05, the range is –30 °C..ST04.
Par.
ST06
Maximum setpoint limit in heat pump
The user cannot program a setpoint value higher than ST06, the range is ST01..70°C.
Par.
ST07
Regulation band width in chiller mode.
Par.
ST08
Regulation band in heat pump mode
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= Remote keyboard 1 probe
5= Remote keyboard 2 probe
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
