Emerson Copeland YA K1 Series Manual

AE4-1486 R1
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6-15 Ton YA*K1 and YP*K1 Copeland™ Scroll Compressors
IMPORTANT SAFETY INFORMATION ........................... 2
Responsibilities, Qualifications and Training ............... 2
No table of contents entries found.
Terminal Venting and Other Pressurized System
Hazards ........................................................................ 2
Flammable Refrigerant Hazards .................................. 3
Electrical Hazards ........................................................ 3
Hot Surface and Fire Hazards ..................................... 3
Lifting Hazards ............................................................. 3
POE Oil Hazards .......................................................... 3
Precautions .................................................................. 3
Signal Word Definitions ................................................ 4
INTRODUCTION ............................................................... 5
Nomenclature ............................................................... 5
Operating Envelopes ................................................... 5
High Pressure Control .................................................. 5
Low Pressure Control .................................................. 5
Advanced Scroll Temperature Protection (ASTP) ....... 5
Discharge Temperature Protection .............................. 6
Shut Down Device ....................................................... 6
Discharge Check Valve ................................................ 6
Shell Temperature ....................................................... 6
Compressor Cycling ..................................................... 6
Long Pipe Lengths / High Refrigerant Charge ............. 7
Suction and Discharge Fittings .................................... 7
System Tubing Stress .................................................. 7
Accumulators ............................................................... 7
Off-Cycle Migration Control .......................................... 7
Crankcase Heaters ...................................................... 7
Pump Down Cycle ....................................................... 8
Pump Out Cycle ........................................................... 8
Reversing Valves ......................................................... 8
Contaminant Control .................................................... 8
Oil Type ........................................................................ 9
Power Factor Correction .............................................. 9
Soft Starters ................................................................. 9
Manifolded Compressors ............................................. 9
VARIABLE SPEED OPERATION .................................... 9
Introduction .................................................................. 9
APPLICATION TESTS ..................................................... 9
ASSEMBLY LINE PROCEDURES ................................ 10
Installing the Compressor .......................................... 10
Mounting .................................................................... 10
© 2020 Emerson Climate Technologies, Inc.

TABLE OF CONTENTS

Suction and Discharge Fittings .................................. 10
Table of Contents
Assembly Line Brazing Procedure ............................. 10
Unbrazing System Components ................................ 11
Removing Compressors ............................................. 11
Pressure Testing ........................................................ 11
Assembly Line System Charging Procedure ............. 11
'Hipot' (AC High Potential) Motor Testing................... 11
Final Run Test ............................................................ 12
SERVICE PROCEDURES .............................................. 12
Field Replacement ..................................................... 12
Removing Oil .............................................................. 12
Electrical ..................................................................... 12
Compressor Replacement After a Motor Burn ........... 12
Manifolded Compressor Replacement ....................... 12
Start-Up of a New or Replacement Compressor ....... 12
Refrigerant Retrofits ................................................... 13
New Installations ........................................................ 14
Field Service ............................................................... 14
Figures & Tables
Figure 1 - ASTP Label ....................................................... 6
Figure 2 - Scroll Tube Fitting Brazing .............................. 14
Figure 3 - YA YP Scroll Nomenclature ............................ 15
Figure 4 - Crankcase Heater Location ............................ 16
Figure 5 - Operating Envelope YA67K1 - YA91K1 ......... 17
Figure 6 - Operating Envelope YA104K1, YA122K1 ....... 18
Figure 7 - Operating Envelope YA137K1 - YA182K1 ..... 19
Figure 8 - Operating Envelope YP137K1 - YP182K1 ..... 20
Figure 9 - Operating Envelope YP72K1 - YP97K1 ......... 21
Figure 10 - Operating Envelope YP105K1, YP123K1 ..... 22
Figure 11 - Oil Dilution Chart ........................................... 23
Table 1- Product Features ............................................... 24
Table 2 - Torque Values .................................................. 24
Table 3 - Refrigerant Charge Limits ................................ 25
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April 2023