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100
tubes should be covered with liquid refrigerant at all times. There is no benefit to have a refrigerant level higher
than the tubes and capacity will be lost if the tubes are not covered with liquid.
Refrigerant may be added either through a storage tank or directly into the chiller as described in the Charging
Refrigerant section.
9.2 Weekly maintenance
9.2.1 Check the Refrigerant Lubrication System
1. Enter INPUT menu and verify that Liquid Level Switch is closed (if compressor is on).
2. Check moisture indicating sight glass on bearing supply line (
Fig. 56
) as well as on the motor/VFD liquid
cooling line (located between vessels feeding of the high side float chamber; sight glass is located downstream of
filter drier)
Summary of Contents for PIC 5+
Page 26: ...26 VFD not shown Fig 13 Sensors actuators location ...
Page 52: ...52 Fig 24 19DV control box ...
Page 53: ...53 1 Power supply 24V AC 2 LEN 3 CCN 4 Ethernet 5 USB Fig 25 19DV HMI box rear view ...
Page 54: ...54 Fig 26 19DV IOB1 wiring Fig 27 19DV IOB2 wiring ...
Page 57: ...57 ...
Page 113: ...113 APPENDIX A SmartView SCREEN AND MENU STRUCTURE ...
Page 114: ...114 Detailed menu description ...
Page 116: ...116 APPENDIX B MAINTENANCE SUMMARY AND LOGSHEETS Cont 19DV monthly Maintenance Log ...