Control wiring.............................................................................................................................................61
Modular communications...................................................................................................................63
Commissioning...............................................................................................................................................72
Preparing with the power off.............................................................................................................72
Preparing with the power on............................................................................................................. 73
First time start-up................................................................................................................................ 74
Special items required for vacuuming and refrigerant charging........................................................ 74
Vacuuming procedure...............................................................................................................................75
Confirming a vacuum................................................................................................................................ 76
Water evaporation..................................................................................................................................... 76
Refrigerant charging for R-454B.............................................................................................................. 77
Confirming the correct refrigerant tank................................................................................................. 77
Charging the refrigerant...........................................................................................................................77
Technical data................................................................................................................................................. 79
Heat exchanger flow........................................................................................................................... 79
Operational limitations....................................................................................................................... 80
Operating and storage conditions...........................................................................................................81
Physical data.........................................................................................................................................84
Electrical data....................................................................................................................................... 87
Refrigerant and oil charge..................................................................................................................88
Water requirements............................................................................................................................ 89
Sound data........................................................................................................................................... 89
Dimensions...........................................................................................................................................90
Unit operation...............................................................................................................................................100
General................................................................................................................................................100
Control system................................................................................................................................... 100
Unit operating sequence.................................................................................................................. 100
Human machine interface (HMI).....................................................................................................102
Main interface...........................................................................................................................................103
System....................................................................................................................................................... 104
Unit.............................................................................................................................................................105
Fault........................................................................................................................................................... 107
HMI............................................................................................................................................................ 108
Changing the system setpoints..............................................................................................................108
Changing the access level.......................................................................................................................108
Starting or stopping the chiller.............................................................................................................. 108
Setting the date and time....................................................................................................................... 109
Setting a schedule....................................................................................................................................109
Setting a holiday.......................................................................................................................................109
Setting the water temperature control using return (RT) or leaving (LT).........................................109
Setting the cooling and heating setpoints............................................................................................109
Setting the low temperature leaving alarm..........................................................................................110
5YMAE Air-Cooled Inverter Scroll Chiller and Heat Pump
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