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YORK INTERNATIONAL
2
FORM 160.60-O2 (1004)
This equipment is a relatively complicated apparatus.
During installation, operation, maintenance or service,
in di vid u als may be exposed to certain components or
conditions including, but not limited to: refrigerants,
oils, materials under pressure, rotating components, and
both high and low voltage. Each of these items has the
po ten tial, if misused or handled improperly, to cause
bodi ly injury or death. It is the obligation and re spon -
si bil i ty of operating/service per son nel to identify and
rec og nize these inherent hazards, protect themselves,
and pro ceed safely in completing their tasks. Failure
to com ply with any of these requirements could result
in se ri ous dam age to the equipment and the property in
IMPORTANT!
READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDELINES
which it is sit u at ed, as well as severe personal injury or
death to them selves and people at the site.
This document is intended for use by CONTROL-CENTER/' >owner-authorized
operating/service personnel. It is expected that this in-

di vid u al possesses independent training that will en able
them to perform their assigned tasks properly and safe ly.
It is essential that, prior to performing any task on this
equipment, this individual shall have read and un der -
stood this document and any referenced materials. This
in di vid u al shall also be familiar with and comply with
all ap pli ca ble governmental standards and regulations
per tain ing to the task in question.
SAFETY SYMBOLS
The following symbols are used in this document to alert the reader to areas of potential hazard:
WARNING indicates a potentially
haz ard ous sit u a tion CONTROL-CENTER/' class='doin' >which, if not
avoid ed, could result in death or se-
ri ous in ju ry.
DANGER indicates an im mi nent ly
hazardous situation CONTROL-CENTER/' class='doin' >which, if not
avoid ed, will re sult in death or se ri ous
injury.
CAUTION identiÞ es a hazard which
could lead to damage to the ma CONTROL-CENTER/' target='blank' class='doin' >chine,
damage to other equip ment and/or
en vi ron men tal pollution. Usually an
in struc tion will be given, together with
a brief ex pla na tion.
All wir ing must be in ac cor dance with YORKs pub lished spec i Þ ca tions and must be per formed
ONLY by qual i fied YORK personnel. YORK will not be re spon si ble for dam ag es/problems
re sult ing from im prop er con nec tions to the con trols or ap pli ca tion of im prop er con trol sig nals.
Failure to fol low this will void the man u fac tur ers warranty and cause serious dam age to
property or injury to per sons.
NOTE is used to highlight ad di tion al
information which may be helpful to
you. FORM 160.60-O2 (1004)
3
YORK INTERNATIONAL
NOMENCLATURE
The model number denotes the following characteristics of the unit.
YG NC NC H2 - G3408 B S
Model Code






Special Features

Evaporator Code




Modi cation Level


Condenser Code


Engine Size












Compressor Code

Power Supply - for 60 Hz
CHANGEABILITY OF THIS DOCUMENT
In complying with YORKs policy for continuous
prod uct improvement, the information contained in
this doc u ment is subject to change without notice.
While YORK makes no commitment to update or
pro vide current in for ma tion automatically to the
manual own er, that in for ma tion, if applicable, can
be ob tained by con tact ing the nearest YORK Applied
Systems Service of ce.
It is the responsibility of operating/service personnel
as to the applicability of these documents to the equip-

ment in question. If there is any question in the mind
of op er at ing/service personnel as to the applicability of
these documents, then, prior to working on the equip-

ment, they should verify with the owner wheth er the
equipment has been modi ed and if current lit er a ture
is available. YORK INTERNATIONAL
4
FORM 160.60-O2 (1004)
ROUTINE MESSAGES ............................................ 34
READY TO START ...................................................34
REMOTE START ENABLED...................................34
ENGINE START INITIATED ...................................34
REMOTE ENGINE START INITIATED ................34
SYSTEM RUNNING.................................................34
SYSTEM COASTDOWN..........................................34
CONTROL STOP.......................................................34
ENGINE WARMUP...................................................34
RAMPING TO MINIMUM SPEED ..........................34
CHILLER PRE-LUBE ...............................................34
REMOTE LOCKOUT ...............................................34
ENGINE COOLDOWN.............................................34
ENGINE PURGE .......................................................35
ENGINE MAINTENANCE STANDBY ...................35
ENGINE MAINTENANCE RUN ............................35
CHILLER OFF...........................................................35
ALARM MESSAGES ............................................... 37
VANE MOTOR SWITCH NOT CLOSED ................37
PERFORM MONTHLY 750 HOUR ENGINE
MAINTENANCE ......................................................37
PLC BATTERY NEEDS REPLACING.....................37
REMOTE START DENIED.......................................37
PURGE IS REQUIRED; PUT ENGINE IN
MAINTENANCE MODE............................................37
TAL-100 LOW LEAVING CHILLED WATER
TEMPERATURE .........................................................37
TAL-140 LOW SUMP OIL TEMPERATURE ..........37
PAL-143 LOW COMPRESSOR OIL PRESSURE....37
PAL-111 LOW EVAPORATOR PRESSURE ............37
INVALID ANTI-SURGE VANE PARAMETERS ....37
INVALID ANTI-SURGE SPEED PARAMETERS...37
TAH-140 HIGH SUMP OIL TEMPERATURE.........38
PDH-143 HIGH COMPRESSOR OIL PRESSURE..38
PAH-113 HIGH DISCHARGE PRESSURE .............38
TAH-113 HIGH DISCHARGE TEMPERATURE ....38
R1 HARDWIRE RELAY NOT RESET.....................38
PS-150 GEAR OIL PRESSURE SWITCH
MALFUNCTION.........................................................38
PSL-150 LOW GEAR OIL PRESSURE....................38
SAH-160A ENGINE OVERSPEED ..........................38
PAL-160 ENGINE LOW OIL PRESSURE ...............38
ZAL-140 COMPRESSOR PROX FORWARD
(J-SERIES ONLY) .......................................................38
ZAL-140 COMPRESSOR PROX REVERSE
(J-SERIES ONLY) .......................................................38
DISPLAY MESSAGES
TABLE OF CONTENTS
SECTION 1 - DESCRIPTION OF SYSTEM AND
FUNDAMENTALS OF OPERATION....6
GENERAL SYSTEM DESCRIPTION ................................ 6
SYSTEM OPERATION...................................................... 6
CAPACITY CONTROLS.................................................... 7
REFRIGERANT FLOW DIAGRAM.................................... 8
SECTION 2 - PANELVIEW PLUS 1000 CONTROL
CENTER INTRODUCTION ................10
GENERAL PANEL DESCRIPTION ................................. 10
NAVIGATING THE CONTROL PANEL............................ 10
SCREEN SELECTION .................................................... 10
INTERACTIVE SCREEN FEATURES..............................11
OPERATOR LOGIN .........................................................11
HOME SCREEN.............................................................. 12
SYSTEM SCREEN.......................................................... 13
EVAPORATOR SCREEN ................................................ 14
CONDENSER SCREEN.................................................. 15
SUBCOOLER SCREEN.................................................. 16
COMPRESSOR SCREEN............................................... 17
OIL SUMP SCREEN ....................................................... 18
PRE-ROTATION VANES CALIBRATION SCREEN ........ 19
HOT GAS VALVE SCREEN ............................................ 20
GEARBOX SCREEN....................................................... 21
ENGINE SCREEN........................................................... 22
LOAD CURVE SCREEN ................................................. 24
CAPACITY CONTROLS SCREEN.................................. 25
MANUAL/AUTO STATION (CAPACITY CONTROLS)
SCREEN.......................................................................... 27
TRENDING SCREEN...................................................... 28
PID TUNING SCREEN (CAPACITY CONTROLS).......... 29
ANTI-SURGE TUNING SCREEN.................................... 31
SECTION 3 - SYSTEM OPERATING
PROCEDURES .................................32
MODE SELECT SWITCH POSITIONS ........................... 32
CHILLER OPERATION ................................................... 32
NORMAL STARTUP AUTOMATION SEQUENCE .......... 32
NORMAL SHUTDOWN ................................................... 33
ENGINE PURGE INITIATION ......................................... 33
NORMAL SHUTDOWN AUTOMATION SEQUENCE ..... 33
SECTION 4 - SYSTEM STATUS DISPLAY
MESSAGES .......................................34
SECTION 5 - ALARM AND TRIP MESSAGES .......36
SECTION 6 - RESTARTING THE CHILLER AFTER
SYSTEM TRIP....................................42
CORRECTING ALARMS AND SYSTEM TRIPS ............. 42
SI METRIC CONVERSION ............................................. 44
TEMPERATUR