Name: York YMAA 0065
Brand: York
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FORM NO.:6U6K-B01E-NB-EN

JOHNSON CONTROLS

AIR-COOLED CHILLER

AND HEAT PUMP

Supersedes: 6U6K-B01E-NA-EN

FORM NO.: 6U6K-B01E-NB-EN

INSTALLATION,COMMISSIONING,

OPERATION & MAINTENANCE

R410A

Issue Date:

February 26, 2018

YMAA / YMPA 0045-0260

AIR-COOLED CHILLER AND HEAT PUMP

50Hz

44-255kW

Cooke Industries - Phone: +64 9 579 2185 Email: sales@cookeindustries.co.nz Web: www.cookeindustries.co.nz

Table of Contents5
Section 1 - General Information and Safety8
Introduction8
Warranty8
Safety8
About this Manual9
Misuse of Equipment9
Section 2 - Product Description11
Introduction11
General System Description11
Optiview Lt Controller12
Power Panel12
Driver Panel13
Standard Equipment13
Options14
Hydro Kit14
Refrigerant Flow Diagram15
Unit Components18
Section 3 - Handling and Storage27
Lifting Weights27
Delivery and Storage27
Operating and Storage Conditions28
Inspection28
Moving the Unit by Forklift Trucks28
Lifting the Unit28
Section 4 - Installation31
Installation Checklist31
Handling31
Inspection31
Location and Clearances31
Isolators (Optional)32
Compressor Mounting32
Chilled Liquid Piping32
Pipework Arrangement33
Wiring36
Circuit Breaker37
Emergency Cutout Button37
Compressor Heaters37
Bphe and Piping Heaters37
Dual Pressure Relief Valves37
Pressure Cutout37
Wire Controller37
Sc-Equipment Communication Card37
Power Supply Connection38
Control Wiring41
Section 5 - Technical Data43
Operational Limitations45
Physical Data47
Electrical Data49
Electrical Diagram51
Wiring Diagram52
Dip Switch Setting63
Dimensions65
Technical Data - Clearances75
Isolators - Weight Distribution and Isolator Mounting Positions76
Isolator Details - One Inch Deflection Spring Isolator Cross-Reference80
One Inch Deflection - Spring Isolators Installation Instructions83
Two Inch Deflection Spring Isolator Cross-Reference84
Two Inch Deflection Spring Isolator Installation and Adjustment87
Neoprene Isolator Cross-Reference88
Neoprene Isolator Installation and Adjustment91
Section 6 - Commissioning93
Commissioning93
Preparation - Power off93
Preparation - Power on94
Unit Operating Sequence98
Hydro Kit Commissioning98
Circulation Pump98
Control Modes99
Mode Setting100
Display100
Operation101
Section 7 - Optiview Lt Operation102
Introduction102
Main Interface102
Privilege Management102
System102
System Setpoints103
Unit104
Fault105
Hmi106
Schedule107
Diagnosis107
Section 8 - Wire Controller Operation109
Introduction109
Interface109
Basic Operations110
Advanced Operations110
Section 9 - Unit Operation112
Capacity Control112
Suction Pressure Limit Controls112
Discharge Pressure Limit Controls112
Compress Ratio Limit Controls112
Discharge Temperature Controls113
Inverter Frequency Control113
Liquid Temp. Control115
Variable Leaving Water Temperature Controls116
Compressor Sequencing117
Defrost Controls118
Anti-Recycle Timer119
Anti-Coincidence Timer119
Evaporator and Piping Heater Controls119
Compressor Crankcase Heaters119
Auxiliary Heater Control119
Ec Fan Control119
Alarm Status119
Section 10 - Service and Troubleshooting120
Service Mode120
Analog and Digital Inputs120
Digital/Pwm Outputs and Communications121
Running Status121
Troubleshooting122
Section 11 - Maintenance124
Important124
Compressors124
Condenser Coils124
Operating Parameters124
Condenser Fan Motors124
Bphe (Evaporator) Heater124
Expansion Tank124
Overall Unit Inspection124
Pressure Relief Valves124
Modbus Protocol128
Bacnet Point Table137
Pressure Transducer Diagram141
Ec Fan Speed Chart142
R410A Pressure Temperature Chart143

Brand	York
Model	YMAA 0065
Category	Heat Pump
Language	English

York YMAA 0065 User Manual

Table of Contents

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York YMAA 0065 Specifications

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