User Manuals: Dunham-Bush WCFX 12 Water Cooled Chiller

Manuals and User Guides for Dunham-Bush WCFX 12 Water Cooled Chiller. We have 1 Dunham-Bush WCFX 12 Water Cooled Chiller manual available for free PDF download: Installation, Operation & Maintenance Manual

Dunham-Bush WCFX 12 Installation, Operation & Maintenance Manual

Dunham-Bush WCFX 12 Installation, Operation & Maintenance Manual (64 pages)

Rotary Screw Water Chillers

Brand: Dunham-Bush | Category: Chiller | Size: 1 MB

Table of Contents

Table of Contents
2
1 General Information

4
- Receiving and Inspection
  4
- Rigging and Moving
  4
- Dimensional Data
  4
- Application Precautions
  4
  - Water Connections
    4
  - Chilled Water Flow
    4
  - Water Cooled Condenser
    5
  - Water Treatment
    5
2 Installation

10
- Foundation
  10
- Vibration Isolation
  10
- Unmounted Accessories
  10
- Water Piping Connections
  10
- Electrical Wiring
  10
- Controls
  28
  - Connections
    28
  - Settings
    28
- Request for Start-Up Representative
  28
3 Operation

29
- System Water Flow Rate
  29
- Seasonal Shut-Down Procedure
  29
- Seasonal Start-Up Procedure
  29
- Safety Relief Valves
  29
- Refrigeration Cycle
  29
- Oil Management Systems
  30
- Hydraulic Capacity Control System
  30
- Freeze Protection
  34
  - Standby at Low Ambient Temperatures
    34
  - In Operation
    34
  - During Maintenance
    34
4 0 Electrical

35
- Electrical
  35
- Electrical Data
  35
- Wiring Diagram
  35
- Typical Operation
  35
Typical Wiring Schematic

36
- Vision 2020I Controller and Terminal
  45
  - Operator Keypad
    45
    
    The Fifteen Polycarbonate Buttons
    45
    
    Compressor Status Key
    46
    
    Input Status Key
    46
    
    Output Status Key
    46
    
    Setpoint Key
    46
    
    Status Reading
    46
    
    Alarm History Key
    47
    
    Clock Key
    47
    
    Advanced User Key and Menu
    48
    
    Authorization
    48
    
    Authorization Key
    48
    
    Technician Key and Menu
    48
    
    Technician Status Key
    48
    
    Technician Status Key- Main Menu
    48
    
    User Key
    48
    
    Compressor FLA Calibration
    49
    
    Manual Control
    49
    
    To Perform Sensor Calibration
    49
    
    Compressor Control
    50
    
    Anti-Recycle Timer
    51
    
    Chilled Water Pump Interlock and Flow Switch
    51
    
    Control Functions
    51
    
    Customer Control Interlock
    51
    
    Load Control
    51
    
    On Delay Timer
    51
    
    Evaporator Pressure Control
    52
    
    Modmotor Setback Control
    52
    
    Ramp Control
    52
    
    Staging Control
    52
    
    Sump Heater Control
    52
    
    Evaporator Freeze Shutoff
    53
    
    High Oil Temperature Thermostat
    53
    
    High Pressure Cut-Off
    53
    
    Low Pressure Cut-Off
    53
    
    Optical Oil Level Sensor
    53
    
    Overload Protector
    53
    
    Phase Control Relay
    53
    
    Low Differential Pressure Alarm
    54
    
    Sensor Alarm
    54
    
    Stop Alarm
    54
- Calibration of Screw Compressor Capacity Amps at Full Load & Minimum Load Percentage
  54
- Master/Slave Control Sequence
  54
  - Communication Bus
    55
  - Sequence of Operation
    56
- Vision 2020I Local Area Network (DBLAN)
  56
- Network Connection Diagram
  57
- Hardware Setting
  57
LED Status

59
5 Maintenance

60
- General
  60
- Periodic Inspection
  60
- Monthly Inspection
  60
- Water Side Cleaning of Vessels
  60
- Electrical Malfunction
  61
- Charging
  61
  - Refrigerant Charge
    61
  - Oil Charge
    61
R134A Pressure/Temperature Properties

62
- Troubleshooting
  63
- Sample Log Sheet
  64

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