23 PUMP DOWN 40
23.1 OFF UNIT WITH PUMP DOWN AND WITH LOW PRESSURE SWITCH CONTROL 40
23.2 PUMP DOWN WITH DEDICATED PRESSURE SWITCH 41
23.3 PUMP DOWN FUNCTION WITH DEDICATED PRESSURE PROBE 41
23.4 PUMP DOWN ALARM DURING COMPRESSORS START- UP 42
23.5 PUMP DOWN ALARM DURING COMPRESSORS SWITCHING OFF 42
23.6 PUMP DOWN BY DELAY TIME 42
24 UNLOADING 43
24.1 HIGH TEMPERATURE OF THE EVAPORATOR WATER INLET 43
24.2 UNLOADING DESCRIPTION 43
24.3 UNLOADING INFORMATION 43
24.4 UNLOADING WITH PRESSURE / CONDENSING TEMPERATURE OR EVAPORATING PRESSURE CONTROL 43
24.5 REGULATION IN CHILLER MODE 43
24.6 REGULATION IN HEAT PUMP MODE 44
24.7 LOW TEMPERATURE OF THE EVAPORATOR WATER OUTLET 44
25 SOLENOID VALVE FOR LIQUID INJECTION 44
25.1 FUNCTIONNING 44
26 WATER PUMP OF THE EVAPORATOR / SUPPLY FAN 44
26.1 WATER PUMP OF THE EVAPORATOR / SUPPLY FAN (AIR/AIR UNIT) 44
26.2 HOT START (SUPPLY FAN) ONLY FOR AIR / AIR UNIT IN HEAT PUMP MODE 45
26.3 SUPPLY FAN OPERATION WITH DIGITAL INPUT AND RTC 45
27 EVAPORATOR PUMP GROUP 45
27.1 EVAPORATOR WATER PUMP ROTATION 45
27.2 EVAPORATOR WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL 45
28 WATER PUMP OF THE CONDENSER 46
28.1 CONDENSER WATER PUMP CONTROL 46
29 PUMP GROUP OF THE CONDENSER 46
29.1 CONDENSER WATER PUMP ROTATION 46
29.2 CONDENSER WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL 47
30 MODULATING OPERATION OF THE PUMPS 47
31 CONDENSER FAN REGULATION 48
31.1 ON/OFF CONDENSER FAN 49
31.2 PROPORTIONAL FAN CONTROL (PWM OR 0..10V) 49
31.3 CONDENSING UNIT: COMMON OR SEPARATE 49
31.4 GRAPH: PROPORTIONAL REGULATION OF CONDENSER FANS 50
31.5 GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN CHILLER MODE 50
31.6 GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN HEAT PUMP MODE 50
32 THERMOREGULATION OF THE ANTI FREEZE, INTEGRATION HEATING
OR BOILER 51
32.1 THERMOREGULATION OF THE HEATERS IN CHILLER 51
32.2 THERMOREGULATION OF THE HEATERS IN HEAT PUMP 51
32.3 THERMOREGULATION OF THE SUPPORT HEATERS FOR AIR/AIR UNIT 51
32.4 CONDENSER ANTI-FREEZE HEATERS REGULATION 51
32.5 GRAPH OF THE ANTI-FREEZE- INTEGRATION HEATING - BOILER HEATER RELAYS 52
32.6 BOILER FUNCTION 52
33 DEFROST CYCLE 53
33.1 FORCED DEFROST 53
33.2 COMBINED DEFROST 53
33.3 MANUAL DEFROST 53
33.4 DEFROST START CONDITION WITH TWO CIRCUIT UNIT 53
33.5 START/STOP DEFROST IN A TWO CIRCUITS UNIT WITH ONE CONDENSING FAN CONTROL UNIT 53
33.6 START/STOP DEFROST IN A TWO CIRCUITS UNIT WITH TWO CONDENSING FAN CONTROL UNIT 53
33.7 AUTOMATIC DEFROST PROCEDURE 54
33.8 OTHER INFORMATION ABOUT THE DEFROST 55
33.9 DEFROST BY CONDENSER FAN 55
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