User Manuals: PolyScience DA750 Portable Chiller

Manuals and User Guides for PolyScience DA750 Portable Chiller. We have 1 PolyScience DA750 Portable Chiller manual available for free PDF download: Operator's Manual

PolyScience DA750 Operator's Manual

PolyScience DA750 Operator's Manual (52 pages)

DuraChill Air- and Water-Cooled Chillers 5, 7.5 and 10 HP

Brand: PolyScience | Category: Chiller | Size: 1 MB

Table of Contents

Table of Contents
2
Introduction

5
Controls and Components

9
- Fan Cycling Switch
  10
- Refrigerant Safety Relief Valve
  11
- Component Identification
  12
  - HP Chillers - Rear
    13
Installation and Startup

14
- Electrical Power
  15
  - Alarm Output
    16
  - RS-232/RS-485 Serial Output
    16
- Signal Inputs/Outputs
  16
- External Piping
  17
  - General Considerations
    17
  - Process Fluid Connections
    17
  - Facility Water Connections
    17
  - Reservoir Drain
    17
  - Reservoir Vent
    17
  - Full Flow Bypass
    18
- Process Coolant
  19
  - Suitable Fluids
    19
- Startup
  20
Normal Operation

22
Display, Alarm and Error Messages

32
- Automatic Restart from Alarm Mode
  34
Routine Maintenance

35
- Recommended Routine Maintenance Schedule
  35
- Reservoir Coolant Level
  35
- Coolant Freeze Protection
  35
- Inline Strainer
  35
- Air Filters
  36
Troubleshooting

37
- Troubleshooting Chart
  37
- Compressor Overload Fault (Ft20)
  38
  - Low Pressure Sensor
    38
  - High Pressure Sensor
    38
Technical Information

39
- Chiller Specifications
  39
  - Air-Cooled Chillers (DA500, DA750, DA1000)
    39
  - Water-Cooled Chillers (DW500)
    39
- Electrical Specifications
  40
  - DA500 Chillers
    40
  - DW500 Chillers
    41
  - DA750 Chillers
    42
  - DA1000 Chillers
    42
- Pump Performance
  43
- RS-232 Serial Communications (RS-485 Option)
  44
Equipment Disposal (WEEE Directive)

45
Service and Technical Support

45
Polyscience Chiller Fluids

46
Warranty

46
Appendix

47

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