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CONTENTS
Page
SAFETY CONSIDERATIONS ......................1
INTRODUCTION
................................5
ABBREVIATIONS
...............................5
17EX CHILLER FAMILIARIZATION
.................5
Chiller Identification Label
.......................5
System Components
............................5
Cooler
........................................5
Condenser
....................................5
Compressor
...................................5
Control Center
.................................5
Motor Starter (Purchased Separately)
..............5
Economizer/Storage Vessel
......................5
REFRIGERATION CYCLE
.......................5-8
OIL COOLING CYCLE
...........................8
Compressor Oil Cooling
.........................8
External Gear Oil Cooling
........................8
LUBRICATION CYCLE
..........................8,9
Compressor Lubrication Cycle
...................8
External Gear Lubrication Cycle
..................9
STARTERS
....................................9
CONTROLS
.................................11-43
Definitions
....................................11
• ANALOG SIGNAL
• DIGITAL SIGNAL
• VOLATILE MEMORY
General
......................................11
PIC System Components
.......................12
• PROCESSOR/SENSOR INPUT/OUTPUT MODULE (PSIO)
• STARTER MANAGEMENT MODULE (SMM)
• LOCAL INTERFACE DEVICE (LID)
• SIX-PACK RELAY BOARD
• EIGHT-INPUT MODULES
• FOUR-IN/TWO-OUT (4-IN/2-OUT) MODULE
• OIL HEATER CONTACTOR (1C)
• COMPRESSOR OIL PUMP CONTACTOR (2C) AND GEAR
OIL PUMP CONTACTOR (5C)
• HOT GAS BYPASS CONTACTOR RELAY (3C) (Optional)
• OIL AUXILIARY RELAY (4C)
• CONTROL TRANSFORMERS (T1-T4)
• CONTROL AND OIL HEATER VOLTAGE
SELECTOR (S1)
• OIL DIFFERENTIAL PRESSURE/POWER SUPPLY
MODULE
LID Operation and Menus
.......................16
• GENERAL
• ALARMS AND ALERTS
• LID DEFAULT SCREEN MENU ITEMS
• MENU STRUCTURE
• TO VIEW OR CHANGE POINT STATUS
• OVERRIDE OPERATIONS
• TO VIEW OR CHANGE TIME SCHEDULE OPERATION
• TO VIEW AND CHANGE SET POINTS
• SERVICE OPERATION
PIC System Functions
..........................32
• CAPACITY CONTROL
• ENTERING CHILLED WATER CONTROL
• DEADBAND
• PROPORTIONAL BANDS AND GAIN
• DEMAND LIMITING
• CHILLER TIMERS
• OCCUPANCY SCHEDULE
Safety Controls
...............................33
• SHUNT TRIP
Page
Default Screen Freeze .........................33
Auxiliary Compressor Oil Pump Control
..........33
Auxiliary Gear Oil Pump Control
................33
Shaft Seal Oil Control
..........................33
Ramp Loading Control
.........................33
Capacity Override
.............................35
High Discharge Temperature Control
.............35
Oil Sump Temperature Control
..................35
Oil Cooler
....................................36
Remote Start/Stop Controls
.....................36
Spare Safety Inputs
...........................36
Spare Alarm Contacts
.........................36
Condenser Pump Control
......................36
Condenser Freeze Prevention
...................36
Tower-Fan Relay
..............................36
Auto. Restart After Power Failure
................36
Water/Brine Reset
.............................37
Demand Limit Control, Option (Requires Optional
8-Input Module)
.............................37
Surge Prevention Algorithm
....................37
Surge Protection
..............................38
Lead/Lag Control
.............................38
• COMMON POINT SENSOR INSTALLATION
• CHILLER COMMUNICATION WIRING
• LEAD/LAG OPERATION
• FAULTED CHILLER OPERATION
• LOAD BALANCING
• AUTO. RESTART AFTER POWER FAILURE
Ice Build Control
..............................40
• ICE BUILD INITIATION
• START-UP/RECYCLE OPERATION
• TEMPERATURE CONTROL DURING ICE BUILD
• TERMINATION OF ICE BUILD
• RETURN TO NON-ICE BUILD OPERATIONS
Attach to Network Device Control
...............41
• ATTACHING TO OTHER CCN MODULES
Service Operation
.............................42
• TO ACCESS THE SERVICE SCREENS
• TO LOG OFF
• HOLIDAY SCHEDULING
START-UP/SHUTDOWN/RECYCLE SEQUENCE
...43-45
Local Start-Up
................................43
Shutdown Sequence
...........................44
Automatic Soft Stop Amps Threshold
............44
Chilled Water Recycle Mode
....................44
Safety Shutdown
..............................45
BEFORE INITIAL START-UP
...................45-57
Job Data Required
............................45
Equipment Required
...........................45
Using the Economizer/Storage Vessel and Pumpout
System
....................................45
Remove Shipping Packaging
...................45
• MOTOR
• EXTERNAL GEAR
Motor Electrical Connection
....................45
Motor Auxiliary Devices
........................46
Open Oil Circuit Valves
........................46
Tighten All Gasketed Joints and Guide Vane
Shaft Packing
...............................46
Check Chiller Tightness
........................46
Refrigerant Tracer
.............................46
Leak Test the Chiller
...........................46
Standing Vacuum Test
.........................49
Chiller Dehydration
............................49
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