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York YDHA-81 - User Manual

York YDHA-81
44 pages
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SERVICE INSTRUCTION
CENTRIFUGAL COMPRESSORS
Supersedes: 160.49-M1 (1292)
Form 160.49-M1 (601)
USED WITH YORK MODEL YK
CENTRIFUGAL LIQUID CHILLERS
26439A
COMPRESSOR COMPRESSOR
MODEL CODE
YDHF-39 P1
YDHF-40 P2
YDHF-42 P3
YDHF-44 P4
YDHA-36 & LHA-36 G3
YDHA-41 & LHA-41 G4
YDHA-46 & LHA-46 H0
YDHA-50N & LHA-50N H1
YDHA-50W & LHA-50W H1
YDHB-57, LHB-57, HA-57 H2
YDHB-61 H3
YDHD-46 H4
YDHD-50N & 50W H5
YDHD-57 H6
YDHD-59 H7
YDHD-61 H8
YDHA-65 & LHA-65 J1
YDHA-73 & LHA-73 J2
YDHA-81 & LHA-81 J3
YDHA-90 & LHA-90 J4
(Also see NOMENCLATURE, page 5)
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Summary

Safety Guidelines

General Safety Guidelines and Symbols

Outlines critical safety rules, procedures, and explains safety symbols used in the manual.

General Compressor Information

General Description and Nomenclature

Provides an overview of the YORK Model YK compressors and explains model identification.

Compressor Service and Maintenance

Service Guidelines, Tools, and Rigging

Covers service best practices, special tools, rigging, weights, and torque specifications.

Motor and Shaft Seal Service

Procedures for motor removal/replacement and servicing of cartridge/bellows type shaft seals.

Rotor Support, Impeller, and Balance Piston Service

Covers disassembly of rotor support, impeller removal, and balance piston seal/diffuser plate service.

Bearing and Housing Service

Details removal and installation of front/rear bearings, bearing housing, and gears.

Installation of Gears, Bearings, and Impeller

Procedures for installing gears, bearings, diffuser plates, and impellers.

Rotor Scroll, Nozzle Plate, and Eye Seal Service

Steps for disassembling rotor scroll, nozzle base plate, and servicing impeller eye seal.

Pre-Rotation Vane and Control Shaft Service

Procedures for servicing the pre-rotation vane housing and control shaft assembly.

Oil Pump Service

Oil Pump Service Procedures

Covers oil pump removal, disassembly, and reassembly into the oil sump.

Summary

Safety Guidelines

General Safety Guidelines and Symbols

Outlines critical safety rules, procedures, and explains safety symbols used in the manual.

General Compressor Information

General Description and Nomenclature

Provides an overview of the YORK Model YK compressors and explains model identification.

Compressor Service and Maintenance

Service Guidelines, Tools, and Rigging

Covers service best practices, special tools, rigging, weights, and torque specifications.

Motor and Shaft Seal Service

Procedures for motor removal/replacement and servicing of cartridge/bellows type shaft seals.

Rotor Support, Impeller, and Balance Piston Service

Covers disassembly of rotor support, impeller removal, and balance piston seal/diffuser plate service.

Bearing and Housing Service

Details removal and installation of front/rear bearings, bearing housing, and gears.

Installation of Gears, Bearings, and Impeller

Procedures for installing gears, bearings, diffuser plates, and impellers.

Rotor Scroll, Nozzle Plate, and Eye Seal Service

Steps for disassembling rotor scroll, nozzle base plate, and servicing impeller eye seal.

Pre-Rotation Vane and Control Shaft Service

Procedures for servicing the pre-rotation vane housing and control shaft assembly.

Oil Pump Service

Oil Pump Service Procedures

Covers oil pump removal, disassembly, and reassembly into the oil sump.

York YDHA-81 Specifications

General IconGeneral
BrandYork
ModelYDHA-81
CategoryAir Compressor
LanguageEnglish

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