66
1: purge drain, 2: Cooler, 3: Pumpout drain, 4: High side float chamber, 5: sight glass, 6: strainer, 7: 3-way
actuated valve, 8: strainer, 9: pump, 10: 2-way actuated valve, 11: refrigerant filter, 12: bearing filter, 13: pumpout
drain.
Fig 37
– Lube control assembly schematic
4.3 Shutdown
The unit can be stopped locally using the HMI by pressing the green Start/Stop icon. The Unit Start/Stop screen is
displayed. Press Confirm Stop (see Fig. 38).
Fig. 38
— Confirm Stop
Chiller shutdown begins if any of the following occurs:
• Local OFF button is pressed
• A recycle condition is present
• The time schedule has gone into unoccupied mode when in Network or Local Schedule control mode
• The chiller protective limit has been reached and chiller is in alarm
• The start/stop status (CHIL_S_S) is overridden to stop from the network when in Network mode.
If the chiller is normally shut down from running; soft stop shutdown will be performed. The soft stop feature closes
the guide vanes of the compressor automatically if a non-alarm stop signal occurs before the compressor motor is
de-energized.
Any time the compressor is directed to stop (except in the cases of a fault shutdown), the guide vanes are directed
to close and VFD is directed to minimum speed for variable speed compressor, and the compressor shuts off
when any of the following is true:
• PERCENT LOAD CURRENT (%) drops below the SOFT STOP AMPS THRESHOLD
• ACTUAL GUIDE VANE OPENING drops below 4%
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 ...
