5
YORK INTERNATIONAL
FORM 201.19-NM1 (204)
TABLE OF CONTENTS (CONT’D)
Units with Single-Point Power Supply Wiring ....34
115VAC CONTROL SUPPLY TRANSFORMER........34
Remote Emergency Stop Device..........................35
CONTROL PANEL WIRING........................................35
VOLTS FREE CONTACTS ..........................................35
Chilled Liquid Pump Starter ................................35
Run Contact..........................................................35
Alarm Contacts.....................................................35
SYSTEM INPUTS.........................................................35
Flow Switch..........................................................35
Remote Run / Stop ...............................................35
Remote Print.........................................................35
Remote Setpoint Offset – Temperature ................35
Remote Setpoint Offset – Current........................35
SECTION 5 - COMMISSIONING
PREPARATION.............................................................42
PREPARATION – POWER OFF ..................................42
Inspection .............................................................42
Refrigerant Charge...............................................42
Valves ...................................................................42
Compressor Oil ....................................................42
Fans ......................................................................42
Isolation/Protection ..............................................42
Control Panel........................................................42
Power Connections...............................................42
Grounding.............................................................42
Overloads .............................................................42
Supply Voltage .....................................................42
Control Transformer.............................................42
Switch Settings.....................................................43
Crankcase Heaters................................................43
Water System........................................................43
Flow Switch..........................................................43
Temperature Sensor(s)..........................................43
Control Supply .....................................................43
Programmed Options............................................43
Programmed Settings ...........................................43
Date and Time ......................................................43
Start/Stop Schedule ..............................................43
Setpoint and Remote Offset .................................43
FIRST TIME START-UP...............................................44
Interlocks..............................................................44
System Switches...................................................44
Start-up.................................................................44
Oil Pressure ..........................................................44
Refrigerant Flow ..................................................44
Fan Rotation.........................................................44
Suction Superheat.................................................44
Expansion Valve ..................................................44
Economizer Superheat .........................................44
Subcooling............................................................44
General Operation ................................................44
SECTION 6 - OPERATION
GENERAL DESCRIPTION..........................................46
START-UP .....................................................................46
NORMAL RUNNING AND CYCLING.......................46
SHUTDOWN.................................................................46
SECTION 7 - TECHNICAL DATA
FLOW RATE AND PRESSURE DROP CHARTS.......48
GLYCOL CORRECTION FACTORS...........................48
TEMPERATURE AND FLOWS...................................49
PHYSICAL DATA.........................................................51
OPERATING LIMITATIONS AND SOUND POWER
DATA.............................................................................53
Electrical Data......................................................54
Electrical Notes ....................................................62
WIRING DIAGRAM.....................................................64
ELEMENTARY DIAGRAM.........................................66
CONNECTION DIAGRAM (SYSTEM WIRING)......77
COMPRESSOR TERMINAL BOX ..............................78
DIMENSIONS–YCAS0130-YCAS0180 (ENGLISH) .82
DIMENSIONS–YCAS0130-YCAS0180 (SI)...............84
DIMENSIONS–YCAS0200-YCAS0230 (ENGLISH) .86
DIMENSIONS–YCAS0200-YCAS0230 (SI)...............88
TECHNICAL DATA......................................................90
WEIGHT DISTRIBUTION AND ISOLATOR
MOUNTING POSITIONS ............................................91
INSTALLATION INSTRUCTIONS FOR VMC SERIES
AWR/AWMR AND CP RESTRAINED
MOUNTINGS..............................................................107
COMPRESSOR COMPONENTS...............................111
UNIT CHECKS (NO POWER)...................................117
SYSTEM STARTUP CHECKLIST.............................117
PANEL CHECKS ........................................................118
PROGRAMMED VALUES.........................................118
INITIAL START-UP....................................................119
CHECKING SUBCOOLING AND SUPERHEAT ....119
CHECKING ECONOMIZER SUPERHEAT .............120
LEAK CHECKING .....................................................120
