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York YK
Johnson Controls York YK Operation And Maintenance
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035-27332-100
Form Number: 160.76-O1 (421)
Supersedes:
160.76-O1 (321)
Operations and Maintenance
Issue Date:
2021-04-25
Model Y
K (Style H), R-
134
a and R-513
A
With OptiView Control Center for Electromechanical
Starter, Solid-State Starter, and Variable Speed Drive
2
Table of Contents
Table of Contents
3
General Safety Guidelines
5
Safety Symbols
5
Changeability of this Document
6
Revision Notes
6
Associated Literature
6
Conditioned Based Maintenance
7
Nomenclature
8
Description of System and Fundamentals of Operation
9
System Operation Description
9
Capacity Control
10
System Operating Procedures
11
Oil Heaters
11
Oil Heater Operation
11
Checking the Oil Level in the Oil Reservoir
11
Start-Up
12
Chiller Operation
12
Condenser Water Temperature Control
13
Operating Log Sheet
13
Operating Inspections
14
Need for Maintenance or Service
16
Stopping the System
16
Prolonged Shutdown
16
System Components Description
17
Compressor
17
Capacity Control
17
Compressor Lubrication System
17
Oil Pump
18
Oil Heater
20
Motor Driveline
21
Heat Exchangers
21
Refrigerant Flow Control
21
Optional Service Isolation Valves
22
Optional Hot Gas Bypass
22
Optiview™ Control Center
22
Solid State Starter (Optional)
22
Variable Speed Drive (Optional)
23
Operational Maintenance
24
Oil Return System
24
Changing the Dehydrator
24
The Oil Charge
25
Oil Charging Procedure
25
Troubleshooting
26
Maintenance
28
Renewal Parts
28
Checking System for Leaks
28
Conducting a System Pressure Test
28
System Evacuation
31
Refrigerant Charging
36
Checking and Trimming the Refrigerant Charge
38
Checking the Refrigerant Charge During Unit Shutdown
39
Handling Refrigerant for Dismantling and Repairs
39
Megging the Motor
41
Compressor
44
Electrical Controls
44
Preventive Maintenance
45
Compressor
45
Compressor Motor
45
Greased Bearings
45
Motor Relubrication Instruction
45
Leak Testing
52
Evaporator and Condenser
52
Oil Return System
52
Electrical Controls
52
Maintenance Inspections
52
Unit Conversion
55
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Johnson Controls York YK Specifications
General
Brand
Johnson Controls
Model
York YK
Category
Industrial Equipment
Language
English
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