York MILLENNIUM YS User Manual

Name: York MILLENNIUM YS
Brand: York
Rating: 4 (1 reviews)

48 pages

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38 YORK INTERNATIONAL

Compressor Port SC - 2

Compressor Port SC - 1

Load

Unload

Load

Load and Unload

Supply Oil

Pressure from

Manifold at SB-2

4 - Way Capacity Control

Solenoid Valve Sub-Plate

Compressor Port SC - 11

Service Isolation Valves

FIG. 23 – CAPACITY CONTROL PIPING SCHEMATIC

LD04300

Operation

Nomenclature2
Table of Contents3
Section 1 Installation5
- General5
- Inspection6
- Data Plate6
- Location6
- Foundation6
- Clearance6
- Rigging7
- Weights - English, R-22 and R-134A Units, 50 and 60 Hz8
- Weights - SI, R-22 and R-134A Units, 50 and 60 Hz10
- Locating and Installing Isolator Pads12
- Checking the Isolator Pad Deflection12
- Standard Neoprene Vibration Isolator Pad Mounts13
- Overall Dimensions - English, S0 Thru S3 Compressor14
- Overall Dimensions - English, S4 and S5 Compressor15
- Installing Optional Spring Isolators18
- Spring Isolators18
- Piping Connections19
  - Check for Piping Alignment19
- Cooler and Condenser Water Piping20
  - Cooling Units - Chilled Water20
  - Cooling Units - Condenser Water Circuit20
  - Stop Valves20
  - Flow Switches (Field Installed)20
  - Drain and Vent Valves20
  - Checking Piping Circuits and Venting Air20
- Schematic of a Typical Piping Arrangement for Cooling Units20
- Refrigerant Relief Piping21
Typical Refrigerant Vent Piping from Relief Valves21
Typical Refrigerant Vent Piping from Rupture Disk22
- Unit Piping23
- Control Wiring23
Power Wiring23
- Unit with Electro-Mechanical Starter23
- Refrigerant Relief Characteristics23
  - Unit with Solid State Starter (Optional)24
- Insulation24
- Insulation Check - Request for Start-Up Service24
YS Motor Connections (Electro-Mechanical Starter Application)25
Installation Check List and Request for Authorized Start-Up Engineer26
Section 2 Operation27
- Basic Description27
- Components27
Component Layout Drawing28
- Condensing Water Temperature29
  - R-22 Refrigerant29
  - R-134A Refrigerant29
- Oil System29
Oil Filter Location29
Oil Piping Schematic30
Oil Pressure Transducer Location31
Eductor Block31
Oil Separator Schematic32
- Oil Eductor Circuit33
- Liquid Refrigerant Circuit34
  - Dual Service Chillers34
Filter Driers and Oil Eductor34
- Variable Orifice Pressure Differential Setpoints34
Oil Eductor Schematic35
Refrigerant Schematic36
- Capacity Control37
Capacity Control Piping Schematic38
Section 3 Maintenance39
- General39
- Compressor Oil39
  - Changing Compressor Oil39
- York Oil Types39
- Compressor Oil Limits39
  - Oil Level41
- Oil Filter41
- Oil Filter Replacement41
  - Single Oil Filter41
  - Dual Oil Filters41
Oil Heater and Sight Glass41
- Filter Drier Replacement42
- Motor42
- Determining Correct Refrigerant Charge Level42
- Refrigerant Charge Level42
- Water Flow Velocities44
  - Vibration Analysis45
Transducer Measurement Points45

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York MILLENNIUM YS Specifications

General

Brand	York
Model	MILLENNIUM YS
Category	Chiller
Language	English

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York MILLENNIUM YS User Manual

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York MILLENNIUM YS Specifications

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