York CodePak YK L1 L1 G4 Manuals

Manuals and User Guides for York CodePak YK L1 L1 G4. We have 1 York CodePak YK L1 L1 G4 manual available for free PDF download: Operation Manual

York CodePak YK L1 L1 G4 Operation Manual (57 pages)

CENTRIFUGAL LIQUID CHILLERS STYLES A & B WITH MICROCOMPUTER CONTROL CENTER PART 371-01200-004 FOR ELECTRO-MECHANICAL STARTER & SOLID STATE STARTER

Brand: York | Category: Chiller | Size: 2.84 MB

Table of Contents
2
Nomenclature
2
Product View
3
SECTION 1 - Description of System and Fundamentals of Operation
3
SECTION 2 - Microcomputer Control Center
5
- Operation
  7
- To Display Chilled Liquid Temperatures
  8
- To Display Refrigerant Pressure
  8
- To Display Oil Pressure
  8
- To Display Options
  8
- To Initiate a Print to Printer
  9
- System Setpoints
  9
- To Display Condenser Liquid Temperatures
  9
- Chilled Liquid Temp
  9
- Pull down Demand
  10
- Daily Schedule
  10
- Remote/Reset Temp Range
  10
- SSS Motor Current/Volts
  10
- Displaying System Setpoints
  11
- To Display Chilled Liquid Temp Setpoint
  11
- To Display % Current Limit Setpoint
  11
- To Display Pull down Demand Setpoint
  11
- To Display Undervoltage Setpoints
  12
- To Display Remote Reset Temp Range Setpoint
  12
- To Display Holiday Setpoints
  12
- Programming System Setpoints
  13
- The Micromputer Control Center
  13
- To Enter Chilled Liquid Temp Setpoints
  14
- To Enter % Current Limit Setpoint
  14
- To Enter Pull down Demand Setpoint
  15
- To Enter Clock Setpoint
  15
- To Enter Daily Schedule Setpoint
  16
- To Enter Holiday Setpoint
  17
- To Enter Remote/Reset Temp Range Setpoint
  17
- Service Keys
  18
- Pre-Rotation Vanes Keys
  18
- Remove Current Limit Setpoint
  19
- Operating Modes
  19
- Display Data
  19
- Manual Oil Pump
  19
- Compressor Switch
  20
- To Change Operating Mode
  20
- To START Chiller Compressor in LOCAL Mode
  20
- To Reset Control Center
  20
- Display Messages
  21
- System Shutdown Messages
  22
- Pre-Starting
  28
SECTION 3 - System Operating Procedures
28
- Start-Up
  29
- Condenser Water Temperature Control
  30
- System Starting and Shutdown Sequence Operator Initiated
  30
- Checking Operation
  31
- Operating Log Sheet
  31
- Operating Inspections
  32
- Need for Maintenance or Service
  33
- Normal and Safety System Shutdown
  33
- Cycling Shutdowns
  33
- Stopping the System
  33
- Prolonged Shutdown
  34
- Start-Up after Prolonged Shutdown
  34
SECTION 4 – System Component Description
35
- Oil Pump
  36
- Lubrication System of Compressor
  36
- Compressor
  36
- Motor Driveline
  37
- Heat Exchanger
  37
- Refrigerant Flow Control
  37
- Oil Heater
  37
- Schematic Drawing - Compressor Lubrication System
  38
- Solid State Starter
  39
- Oil Return System
  39
- Changing the Dehydrator
  39
SECTION 5 - Operational Maintenance
39
- The Oil Charge
  40
- Troubleshooting
  41
SECTION 6 - Trouble Shooting
41
SECTION 7 - Maintenance
46
- System Pressures Table
  47
- Vacuum Testing
  48
- Vacuum Dehydration
  48
- Refrigerant Charging
  49
- Saturation Curve
  49
- Checking the Refrigerant Charge During Unit Shutdown
  50
- Megging the Motor
  50
- Motor Stator Temperature and Insulation Resistances
  51
- Condensers and Coolers
  52
- Chemical Water Treatment
  52
- Cooler
  52
- Tube Cleaning Procedures
  52
- Testing for Cooler and Condenser Tube Leaks
  53
- Pressure Testing
  55
SECTION 8 - Preventive Maintenance
55
Electrical Controls
56

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