York YB User manual

OPERATION MANUAL
CONTROL CENTER
CENTRIFUGAL LIQUID CHILLERS
Supersedes: Nothing Form 160.60-O2 (1004)
FLEXLOGIX CONTROL CENTER
MODEL YB & YG
GAS ENGINE LIQUID CHILLER
Design Level B

YORK INTERNATIONAL
2
FORM 160.60-O2 (1004)
This equipment is a relatively complicated apparatus.
During installation, operation, maintenance or service,
individuals 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
potential, if misused or handled improperly, to cause
bodily injury or death. It is the obligation and respon-
sibility of operating/service personnel to identify and
recognize these inherent hazards, protect themselves,
and proceed safely in completing their tasks. Failure
to comply with any of these requirements could result
in serious damage to the equipment and the property in
IMPORTANT!
READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDELINES
which it is situated, as well as severe personal injury or
death to themselves and people at the site.
This document is intended for use by owner-authorized
operating/service personnel. It is expected that this in-
dividual possesses independent training that will enable
them to perform theirassigned tasks properly andsafely.
It is essential that, prior to performing any task on this
equipment, this individual shall have read and under-
stood this document and any referenced materials. This
individual shall also be familiar with and comply with
all applicable governmental standards and regulations
pertaining 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
hazardous situation which, if not
avoided, could result in death or se-
rious injury.
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or serious
injury.
CAUTION identiÞes a hazard which
could lead to damage to the machine,
damage to other equipment and/or
environmental pollution. Usually an
instruction will be given, together with
a brief explanation.
All wiring must be in accordance with YORK’s published speciÞcations and must be performed
ONLY by qualified YORK personnel. YORK will not be responsible for damages/problems
resulting from improper connections to the controls or application of improper control signals.
Failure to follow this will void the manufacturer’s warranty and cause serious damage to
property or injury to persons.
NOTE is used to highlight additional
information which may be helpful to
you.

FORM 160.60-O2 (1004)
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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 Modification Level
Condenser Code Engine Size
Compressor Code Power Supply - for 60 Hz
CHANGEABILITY OF THIS DOCUMENT
In complying with YORK’s policy for continuous
product improvement, the information contained in
this document is subject to change without notice.
While YORK makes no commitment to update or
provide current information automatically to the
manual owner, that information, if applicable, can
be obtained by contacting the nearest YORK Applied
Systems Service office.
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 operating/service personnel as to the applicability of
these documents, then, prior to working on the equip-
ment, they should verify with the owner whether the
equipment has been modified and if current literature
is available.

YORK INTERNATIONAL
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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 MESSAGESTABLE 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 STARTUPAUTOMATION 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
TEMPERATURE..............................................................44
INDEX.......................................................................45

FORM 160.60-O2 (1004)
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YORK INTERNATIONAL
FIG. 1 – MODEL YG GAS ENGINE CHILLER.................6
DETAIL A – COMPRESSOR PREROTATION VANES....7
FIG. 2 – REFRIGERANT FLOW-THRU CHILLER...........8
FIG. 3 – PANELVIEW PLUS 1000 .................................10
FIG. 4 – MAIN SCREEN ................................................11
FIG. 5 – HOME SCREEN ..............................................12
FIG. 6 – SYSTEM SCREEN ..........................................13
FIG. 7 – EVAPORATOR SCREEN ................................14
FIG. 8 – CONDENSER SCREEN ..................................15
FIG. 9 – SUBCOOLER SCREEN ..................................16
FIG. 10 – COMPRESSOR SCREEN ............................17
FIG. 11 – OIL SUMP SCREEN ......................................18
FIG. 12 – PRE-ROTATION VANES CALIBRATION
SCREEN .........................................................19
FIG. 13 – HOT GAS VALVE SCREEN ..........................20
FIG. 14 – GEARBOX SCREEN .....................................21
FIG. 15 – ENGINE SCREEN .........................................22
FIG. 16 – LOAD CURVE SCREEN ...............................24
FIG. 17 – CAPACITY CONTROLS SCREEN ................25
FIG. 18 – MANUAL/AUTO STATION (CAPACITY
CONTROLS) SCREEN .................................27
FIG. 19 – TRENDING SCREEN ....................................28
FIG. 20 – PID TUNING SCREEN ..................................29
FIG. 21 – ANTI SURGE TUNING SCREEN ..................31
FIG. 22 – SYSTEM STATUS DISPLAY MESSAGE .......34
FIG. 23 – ALARM POPUP BOX SHOT..........................36
FIG. 24 – HISTORY SCREEN .......................................37
TRIP MESSAGES....................................................38
“5 VOLT SUPPLY REFERENCE FAILED”.................38
“AUXILIARY SAFETY SHUTDOWN INITIATED”..38
FSL-100 “LOW CHILLED WATER FLOW”...............38
PS-151 “CLUTCH PRESSURE SWITCH
MALFUNCTION”.........................................................38
PS-151 “CLUTCH FAILED TO DISENGAGE”..........39
PS-151 “CLUTCH FAILED TO ENGAGE”.................39
ZAHH-140 “COMPRESSOR PROX FORWARD”......39
ZALL-140 “COMPRESSOR PROX REVERSE” ........39
FS-102 “LOW CONDENSER WATER FLOW”...........39
“CHILLER PANEL EMERGENCY STOP” .................39
“ENGINE DIDN’T START; PURGE ENGINE” ..........39
TSHH-162 “ENGINE HIGH WATER JACKET
TEMPERATURE”.........................................................39
TSLL-161 “ENGINE LOW OIL PRESSURE”.............39
“ESS ENGINE OVERSPEED”.....................................39
STH-160A “ENGINE OVERSPEED” ..........................39
“ENGINE PANEL EMERGENCY STOP” ...................39
PSLL-150 “LOW GEAR OIL PRESSURE”.................39
PS-150 “GEAR OIL PRESSURE SWITCH
MALFUNCTION”.........................................................39
PS-150 “GEAR OIL TEMPERATURE SWITCH
MALFUNCTION”.........................................................39
TSHH-150 “HIGH GEAR OIL TEMPERATURE” ......39
TAHH-113 “HIGH DISCHARGE TEMPERATURE” .39
PAHH-113 “HIGH DISCHARGE PRESSURE”...........39
PDHH-143 “HIGH COMPRESSOR OIL
PRESSURE”..................................................................39
TAHH-140 “HIGH SUMP OIL TEMPERATURE”......40
PSHH-113A “HIGH PRESSURE CUTOUT
(HARDWIRED)”...........................................................40
PDHH-143 “HIGH COMPRESSOR OIL
PRESSURE”..................................................................40
PALL-111 “LOW EVAPORATOR PRESSURE”..........40
PALL-143 “LOW COMPRESSOR OIL PRESSURE” .40
TALL-140 “LOW SUMP OIL TEMPERATURE”........40
TALL-100 “LOW LEAVING CHILLED WATER
TEMPERATURE”.........................................................40
“OPERATION MODE SWITCH MALFUNCTION
(BOTH INPUTS HIGH)”..............................................40
“VS OIL PUMP DIDN’T START”................................40
“POWER FAILURE” ....................................................40
“PROGRAM FAULT”...................................................40
“PURGE ENGINE IN MAINTENANCE MODE”.......40
“PROXIMITOR ZE-140 UNCALIBRATED
(J-SERIES COMPRESSORS ONLY)” .........................40
LIST OF FIGURES
DISPLAY MESSAGES (CONT'D)
“ENGINE SPEED LOSS”.........................................40
“COMPRESSOR THRUST BEARING SWITCH”..40
“LOW WATER JACKET LEVEL” ...........................40
“ENGINE RUNNING NO SPEED PICKUP SIGNAL”
41
“ENGINE DIDN’T STOP”........................................41
“ENGINE STARTER MOTOR ANTIRECYCLE”...41
ACKNOWLEDGING ALARMS .............................42
EXECUTING AN ENGINE PURGE.......................42

YORK INTERNATIONAL
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FORM 160.60-O2 (1004)
SYSTEM OPERATION
In operation, liquid water flows through the evaporator
where boiling refrigerant absorbs heat from the water.
The chilled water is then piped to fan coil units or other
air conditioning terminal units, where it absorbs heat
from the air. The warmed water is then returned to the
evaporator to complete the chilled liquid circuit.
The refrigerant vapor, which is produced by the boiling
action in the evaporator, flows into the compressor
where the rotating impeller increases its pressure and
temperature and discharges it into the condenser. Water
flowing through the condenser removes heat from the
refrigerant vapor, causing it to condense into a liquid
state. The condenser water is supplied to the condenser
from an external source, usually a cooling tower. The
condensed refrigerant drains fromthe condenser into the
subcooler, where additional heat is removed, lowering
its temperature. In the subcooler, the refrigerant liquid
SECTION 1
DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION
GENERAL SYSTEM DESCRIPTION
TheYORK Model YG Gas Engine Chiller is commonly
applied to large air conditioning systems, but may be
used on other applications. The chiller is completely
factory packaged including: the evaporator, refrigerant
condenser, compressor, gas engine, lubrication systems,
power panel, control center and all interconnecting unit
piping and wiring.
The chiller is controlled by a modern state-of-the-
art Control Center that monitors its operation. The
Control Center is programmed by the operator to suit
job specifications.
The chiller control panel provides control of the
entire system, including the gas engine starting and
monitoring. The control panel includes a color TFT
display surrounded by “soft” keys that are redefined
based on the screen displayed at the time. A keypad is
provided on the panel to enter and/or modify system
parameters and setpoints.
FIG. 1 – MODEL YG GAS ENGINE CHILLER
Description of System and Fundamentals of Operation
PanelView
Operator
Interface
Compressor
Suction Line
Compressor
Compressor
Discharge
Pipe
Turbocharger Engine Water
Level Sensor
Clutch Compressed
Air Line Battery
Charger Engine Ignition Module
Engine Coolant Heat
Exchanger Heat Recovery
Heat Exchanger
5 kVA
Panel
Transformer
LD09976

FORM 160.60-O2 (1004)
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YORK INTERNATIONAL
1
level is maintained by the subcooler level control valve,
which meters liquid refrigerant into the evaporator to
complete the refrigerant circuit.
The subcooler liquid level is continuously monitored
to provide optimum subcooler, refrigerant condenser
and evaporator performance. The level control valve
automatically adjusts to all “real world” operating
conditions, providing the most efficient and reliable
operation of refrigerant flow control.
CAPACITY CONTROLS
The major components of the chiller are selected to
handle the refrigerant that would be evaporated at
full load design conditions. However, most systems
will be called upon to deliver full load capacity for
only a relatively small part of the time the unit is in
operation.
During part-load operation at off-design conditions, the
chiller capacity is reducedto maintain a constantleaving
chilled liquid temperature by first decreasing the speed
and closing the compressor pre-rotation vanes (PRV)
(See Detail A), then opening the hot gas bypass valve.
7619A(D)
DETAIL A – COMPRESSOR PREROTATION VANES
The hot gas bypass valve admits hot, high-pressure
refrigerant from the compressor discharge back into
the condenser, partially short-circuiting the refrigeration
cycle. This practice prevents compressor surging under
low part-load conditions.
The position of the vanes is automatically controlled
through a lever arm attached to an electric motor
located outside the compressor housing. The automatic
adjustment of the vane position in effect provides the
performance of many different compressors to match
various load conditions from full load with vanes wide
open to minimum load with vanes completely closed.
The combination of PRV position manipulation, speed
reduction and hot gas bypass valve function provides
capacity reductionfrom 100% to15% ofdesign capacity.
The speed iscontrolled by anelectro-mechanical throttle
actuator attached to the engine throttle linkage, and is
managed by the capacity control logic.

YORK INTERNATIONAL
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FORM 160.60-O2 (1004)
FIG. 2 – REFRIGERANT FLOW-THRU CHILLER
Description of System and Fundamentals of Operation
REFRIGERANT FLOW DIAGRAM
LEGEND
HIGH PRESSURE VAPOR
HIGH PRESSURE LIQUID REFIGERANT
LOW PRESSURE LIQUID REFIGERANT
LOW PRESSURE VAPOR
EVAPORATOR
REFRIGERANT
DRAIN AND CHARGING
ELIMINATOR
SUB-COOLER
CONDENSER
DISCHARGE
COMPRESSOR
SUCTION
HOT GAS
BYPASS VALVE
LEVEL CONTROL
VALVE
LIQUID LEVEL
SENSOR

FORM 160.60-O2 (1004)
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YORK INTERNATIONAL
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FORM 160.60-O2 (1004)
SECTION 2
PANELVIEW PLUS 1000 CONTROL CENTER INTRODUCTION
GENERAL PANEL DESCRIPTION
The Allen-Bradley PanelView Plus 1000 operator
interface isfurnished standard onthe chillerand provides
the ultimate in efficiency, automation, monitoring, data
recording and chiller protection. The Control Center
is a factory-mounted, wired and tested control system
for R134a centrifugal chillers. The panel is configured
with a color TFTdisplay surrounded by “soft” keys that
are redefined based on the screen being displayed. This
makes chiller operation quicker and easier with a single
button revealing a wide array of information on a large,
full-color illustration of the appropriate component.
The TFT display features graphic animated display of
the chiller, chiller subsystems and system parameters,
allowingthepresentationof severaloperatingparameters
at once.
During engine startup, operation and shutdown, the
system will display vital information available at any
time. The locations of various chiller parameters are
clearly marked and instructions for specific operation
are provided on many of the screens.
NAVIGATING THE CONTROL PANEL
Navigating through the various screens of the operator
interface panel is highly intuitive. Soft keys to the left,
right and bottom of the Display Screen allows the user
to select from the available screen displays and make
setpoint adjustments.
Setpoint valuesare entered withthe keypadat theright of
the operator interface panel. Arrow keys on the keypad
allow the user to page up, page down and move to the
beginning and end of the available screens.
SCREEN SELECTION
Graphical, animated screens provide a means of data
display and service for various system components.
Screens indicate all aspects of operation and sensor data
pertaining to the particular component depicted.
At the top of each main screen is displayed the system
status, present date and time, local or remote control
source and system access level. (See below)
PanelView Plus 1000 Control Center
FIG. 3 – PANELVIEW PLUS 1000 LD09878

FORM 160.60-O2 (1004)
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YORK INTERNATIONAL
Sub-screens may also be available for some system
components, providing additional data access. Screens
are selected byselecting the appropriatetabs on the sides
of the display. Press the soft button corresponding to a
particular screen tab.
INTERACTIVE SCREEN FEATURES
Various aspects of chiller operation may be adjusted by
theoperatorwithinthe appropriatescreen. Functionkeys
(F1 -F16 and K1 – K16) allow the operator to select
a tab appropriate to the adjustment he wishes to make.
Some interactive controls aredepicted graphically while
others, such as setpoints, appear as entry fields in which
the operator may enter values directly.
The operator may move between entry fields using the
tab keys on the keypad, !and ". When an entry field
is highlighted, pressing any key on the keypad opens
a window on the display depicting the keypad itself.
The operator may then enter a value on the keypad by
pressing the return key (#). An entry may be voided
by pressing the ESC key.
The chiller Control System has four
access levels: VIEW, OPERATOR,
SERVICE and SUPER USER. This
instruction is intended only as an
operator manual. As such, depicted
here are the system parameters
available atthe VIEWand OPERATOR
levels of access. Additional parameters
are accessible at the service level
under SERVICE and SUPER USER
authorization, which require user
login. See the service manual for
login instruction and details relating
to system service.
System adjustments should be
performed only by a qualiÞed operator.
Read all instructions carefully before
making adjustments
OPERATOR LOGIN
In order to gain access to operator authorized features, it
is necessary to log into the system. On the home screen
is the F2 LOGIN tab. Selecting this tab brings up a
display depicting the control panel keypad. Enter the
user access code and press the return key on the keypad.
The System Status display at the top of the screen shows
the current login access level.
When the chiller system is first powered on, the default
display is the Home Screen. The primary values that
must be monitored and controlled are shown on this
screen. The Home Screen display depicts a visual
representation of the chiller itself.
FIG. 4 – MAIN SCREEN
LD09906
LD09879

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FORM 160.60-O2 (1004)
DISPLAY
Leaving Chilled Liquid Temperature
Displays the temperature of the chilled liquid leaving
the evaporator
Entering Chilled Liquid Temperature
Displays the temperature of the liquid entering the
evaporator
Return Condenser Liquid Temperature
Displays the temperature of the liquid leaving the
condenser
Leaving Condenser Liquid Temperature
Displays the temperature of the liquid leaving the
condenser
PRV Position
Displays the position of the pre-rotation vanes in
percent
Engine Speed
Displays the engine speed in RPM
Condenser Flow Switch
Indicates that liquid is flowing through the condenser
Evaporator Flow Switch
Indicates that liquid is flowing through the evaporator
Ignition Enable
Indicates that the engine is ready to start
Engine Run
Indicates that the engine is running
Starter
Indicates that the engine starter motor is operating
The System Screen is essentially an extension of the
Home Screen, providing additional system information
to the operator
HOME SCREEN
LD09879
FIG. 5 - HOME SCREEN
PanelView Plus 1000 Control Center

FORM 160.60-O2 (1004)
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YORK INTERNATIONAL
DISPLAY
Discharge Temperature
Displays the temperature of the refrigerant gas leaving
the compressor
Compressor Head
Displays the head pressure, expressed as the difference
between the compressor suction pressure and the
compressor discharge pressure
Condenser Liquid Temperature
Entering/Leaving
Displays the temperature of the cooling liquid both
entering and leaving the condenser
Oil Sump Temperature
Displays the temperature of the oil in the compressor
oil sump
Oil Supply Pressure
Displays the pressure of the compressor oil system
Chilled Liquid Temperature Entering/Leaving
2
SYSTEM SCREEN
LD09880
FIG. 6 - SYSTEM SCREEN
Displays the temperature of the chilled liquid both
entering and leaving the condenser
Condenser Pressure
Displays the operational pressure of the condenser
Condenser Saturation (Temperature)
Displays the current saturation temperature of the
refrigerant in the condenser
Evaporator Pressure
Displays the operational pressure of the evaporator
Evaporator Temperature (Saturation)
Displays the current saturation temperature of the
refrigerant in the evaporator

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FORM 160.60-O2 (1004)
DISPLAY
Leaving Chilled Liquid Temperature
Displays the temperature of the chilled liquid leaving
the evaporator
Entering Chilled Liquid Temperature
Displays the temperature of the liquid entering the
evaporator
Evaporator Refrigerant Liquid Temperature
Displays the current temperature of the refrigerant in
the evaporator
Evaporator Small Temperature Difference
Displays the temperature expressed as the differential
temperature between the chilled liquid temperature
entering and leaving
Leaving Chilled Temperature Setpoint
Displays the current chilled liquid temperature
setpoint
Evaporator Pressure and Temperature
Displays the pressure and temperature of the evaporator
refrigerant
Remote Setpoint
Displays the remotely set chilled water setpoint
Evaporator Flow Switch
Indicates that chilled liquid is flowing through the
evaporator
PROGRAMMABLE
Controlled Stop Unload Setpoint
Designatedchilledwatertemperatureatwhichtheengine
disengages from the drive train during shutdown.
INTERACTIVE
(F3) Local Chilled Water Setpoint
Selecting this tab allows the operator to enter the local
chilled water temperature setpoint
(K3) Local Start
Selecting this tab toggles the start mode from local to
remote
(K4) Local Setpoint
Selecting this tab toggles between local and remote
setpoints
(K7) Network Remote Start
Selecting this tab toggles between network remote start
and hardwire remote start features
(K8) Network Setpoints
Selecting this tab togglesbetween hardwire andnetwork
chilled water setpoint
PanelView Plus 1000 Control Center
EVAPORATOR SCREEN
LD09881
FIG. 7 - EVAPORATOR SCREEN

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YORK INTERNATIONAL
DISPLAY
Return Condenser Water Temperature
Displays the temperature of the cooling water returning
to the condenser
Leaving Condenser Water Temperature
Displays the temperature of the cooling water leaving
the condenser
Condenser Refrigerant Temperature
Displays the temperature of the condenser refrigerant
Subcooled Drop Leg Temperature
Displays the temperature of the refrigerant in the drop
leg of the subcooler
Condenser Small Temperature Difference
Displays the temperature expressed as the differential
between the water entering and the water leaving the
condenser
Condenser Pressure
Displays the current operating pressure of the
condenser
Subcooler Level (Graphical)
Displays the level of refrigerant inside the subcooler
OVA Output
Displays the status of the subcooler level control valve
from fully open to fully closed in percent
Condenser High Pressure Cutout
Indicates the status of the high pressure cutout switch
INTERACTIVE
(F3) Subcooler Level Setpoint
Allows the operator to adjust the subcooler refrigerant
level setpoint
CONDENSER SCREEN
LD09882
FIG. 8 - CONDENSER SCREEN
2

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FORM 160.60-O2 (1004)
DISPLAY
Return Condenser Water Temperature
Displays the temperature of the condenser water
returning to the condenser
Leaving Condenser Water Temperature
Displays the temperature of the condenser water
returning to the condenser
Condenser Refrigerant Temperature
Displays the current temperature of the condenser
refrigerant
Subcooler Temperature
Displays the temperature of the refrigerant in the
subcooler
Condenser Small Temperature Difference
Displays the temperature expressed as a differential
temperature between the water leaving and the water
entering the condenser
Evaporator Refrigerant Level (Graphical)
Displays the evaporator refrigerant level in percent
INTERACTIVE
The programmable portion of the
Subcooler Screen contains settings that
should only be changed by a qualiÞed
service person
(F1) Subcooler Valve
Allowstheoperatortomanuallyadjustthesubcooler
valve to the desired setting
Pressing the F1Auto tab allows the operator
to adjust the subcooler level valve from 0
– 100% open using the F2 and F10 keys on
the bottom of the display.
PanelView Plus 1000 Control Center
SUBCOOLER SCREEN
LD09883
FIG. 9 - SUBCOOLER SCREEN

FORM 160.60-O2 (1004)
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YORK INTERNATIONAL
DISPLAY
Oil Supply Pressure
Displays the oil supply pressure
Oil Sump Temperature
Displays the oil sump temperature
Discharge Temperature
Displays the temperature of the refrigerant gas at the
compressor outlet
Discharge Superheat
Displays the temperature expressed as the differential
between the discharge temperature and the condenser
saturation temperature
Compressor Head
Displays the head pressure expressed as a differential
between the compressor suction and discharge
Oil Pump Frequency
Displays the operating frequency of the variable-speed
oil pump drive
PRV Motor Opening/Closing
Indicates the status of the pre-rotation vane actuator
PRV Position
Displays the position of the pre-rotation vanes in
percent
Vane Motor Switch
Indicates the status of the vane motor switch
Oil Return Solenoid
Displays the status of the oil return solenoid
Calculated Engine Load
Displays the engine load in percent
INTERACTIVE
(F1) Pre-rotation vanes
Operator may manually adjust the position of the pre-
rotation vanes
Pressing the F1Auto tab allows the operator
to adjust the pre-rotation vane setting from
0 – 100% open using the F2 and F10 keys
on the bottom of the display.
COMPRESSOR SCREEN
LD09884
FIG. 10 - COMPRESSOR SCREEN
2

YORK INTERNATIONAL
18
FORM 160.60-O2 (1004)
PanelView Plus 1000 Control Center
DISPLAY
Oil Sump Temperature
Displays the oil sump temperature
Oil Sump Pressure (HOP)/(LOP)
Displays the pressure at the high and low pressure sides
of the oil sump
Oil Supply Pressure
Displays the oil supply pressure
Oil Pump Frequency
Displays the variable-speed oil pump drive frequency
Oil Pump Run
Indicates the operational status of the oil pump
Oil Return Solenoid
Indicates the status of the oil return solenoid
OIL SUMP SCREEN
FIG. 11 - OIL SUMP SCREEN
Oil Heater
Indicates the operational status of the oil heater
INTERACTIVE
(F3) Manual Lubrication Off
Toggles the oil pump off/on

FORM 160.60-O2 (1004)
19
YORK INTERNATIONAL
2
DISPLAY
PRV Raw Input
Displays the vane position signal provided by the
Control System
PRV Position
Displays the real-time position of the vanes
PRV Motor Opening/Closing
Displays the status of the vane actuator
PROGRAMMABLE
Zero Value Setpoint
For manual calibration of the PRV; corresponds to
the raw PRV potentiometer input with the vanes fully
closed
Span Value
For manual calibration of the PRV; corresponds to
the raw PRV potentiometer input with the vanes fully
open
INTERACTIVE
(F2) Start Calibration
Selecting thistab initiates avane position calibration
algorithm.
(F3) End Calibration
Selecting this tab accepts the automated vane
calibration
When F2 START CALIBRATION is select-
ed, a message “Vane motor stroking; please
wait” appears. Press F3 END CALIBRA-
TION to accept calibration
PRE-ROTATION VANES CALIBRATION SCREEN
LD09886
FIG. 12 - PRE-ROTATION VANES CALIBRATION SCREEN

YORK INTERNATIONAL
20
FORM 160.60-O2 (1004)
PanelView Plus 1000 Control Center
DISPLAY
PRV Position
Displays the position of the pre-rotation vanes in
percent
Discharge Temperature
Displays the compressor discharge temperature
Discharge Superheat
Displays the temperature expressed as a differential
between the discharge temperature and the condenser
saturation temperature
Compressor Head
Displays the pressureexpressed as adifferentialbetween
the compressor suction and compressor discharge
pressures
Valve Position
Displays the position of the valve in terms of percentage
open
INTERACTIVE
(F1) Hot Gas Valve
Allows the operator to manually adjust the position of
the hot gas bypass valve
Pressing the F1Auto tab allows the operator
to adjust the hot gas valve position from 0
– 100% open using the F2 and F10 keys on
the bottom of the display.
HOT GAS VALVE SCREEN
LD09887
FIG. 13 - HOT GAS VALVE SCREEN