System information

C0240111-06-07-GB
77
WATER-WATER UNIT “B”
Digital inputs
ID1 Circuit 1 high pressure switch
ID2 Circuit 2 high pressure switch
ID3 Remote on/off
ID4 Chiller/Heat pump from external contact
ID5 Evaporator flow switch
ID6 Circuit 1 low pressure switch
ID7 Circuit 2 low pressure switch
ID8 Compressor 1 thermal protection
ID9 Compressor 2 thermal protection
ID10 Pump 1 thermal protection
ID11
Condenser flow switch (units with freon-side
reversal only)
ID12 Phase sequence
ID13 System pressure control
ID14 Pump 2 thermal switch
ID15 Demand limit
Analogue inputs
B1 Circuit 1 high pressure transducer
B2 Circuit 2 high pressure transducer
B3 Evaporator inlet water temperature
B4 Evaporator outlet 1 water temperature
B5 Evaporator outlet 2 water temperature
B6 Condenser outlet water temperature
B7 Outlet 2 water temp. / cond. inlet
B8 Setpoint var. from ext. signal output 4-20 mA
Digital outputs
NO1 Evaporator antifreeze heating element
NO2
Unit operating mode: Chiller - Heat pump /
Circuit 1 cycle reversal valve (units with freon-
side reversal only)
NO3
Circuit 2 cycle reversal valve (units with freon-
side reversal only)
NO4
NO5 Pump 1
NO6 Compressor 1
NO7 Compressor 2
NO8 General alarms cumulative
NO9
Pump 2 / Condenser pump (units with freon-side
reversal only)
NO10
NO11
NO12
Analogue outputs
Y1 Condensation adjustment (PWM)
Y2