Trane CGAF-C20, CGAF-C50, CGAF-C40, CGAF-C25, CGAF-C30 Programming, Troubleshooting Manual
...
Programming CG-SVP01B-EN
Troubleshooting
Guide
Library Service Literature
Product Section Refrigeration
Product Hermetic Scroll Liquid Chillers, Air Cooled
Model CG
Literature Type Programming, Trouble Shooting Guide
Sequence 01B
Date January 2005
File No. SV-RF-CG-SVP01B-EN 1/05
Supersedes CG-SVP01A-EN 4/03
IntelliPak
TM
Air-Cooled Cold Generator
Models
"H" and Later Design Sequence
CGAF-C20 CGAF-C40
CGAF-C25 CGAF-C50
CGAF-C30 CGAF-C60
With 3-DTM Scroll Compressors
Ó
ÿ
2005 American Standard Inc. All rights reserved
http://www.trane.com
Trane has a policy of continuous product and product data
improvement and reserves the right to change design and
specifications without notice. Only qualified technicians should
perform the installation and servicing of equipment referred to
in this publication.
About The Manual
Literature Change History
CG-SVP01B-EN (January 2005)
Original issue of this manual; provides specific programming, diagnostic, and troubleshooting information CGAF
units with “K” and later design sequence.
Overview of Manual
Note: One copy of this document ships inside the
control panel of each unit and is customer
property. It must be retained by the unit’s
maintenance personnel.
These units are equipped with electronic control modules
which provides operating functions that are significantly different than conventional units.
The manual is divided into 6 sections. Each section provides the operator with specific information about the system operating parameters and their related screens. By
carefully following the screen layout within this manual
while scrolling through the Human Interface, the operator
can monitor operating status, set specific operating parameters, and diagnose system problems.
Before attempting to operate or service this equipment, refer to the “Start-Up” and “Test Mode” procedures in the applicable Installation, Operation and Maintenance manual,
listed on the unit nameplate.
Note: The procedures discussed in this manual
should only be performed by qualified, experienced
HVAC technicians.
Refer to the Table of Contents and Index for specific topics
contained in this manual and supporting manuals.
2
About The Manual
Literature Change History ....................................................... 2
Overview of Manual ................................................................. 2
General Information
Model Number Description ...................................................... 4
Unit Nameplate ........................................................................ 4
Hazard Identification ................................................................ 4
Commonly Used Acronyms ..................................................... 4
Glossary of Terms .................................................................... 5
UCM Control System ............................................................... 6
UCM Module ............................................................................ 6
Compressor Module ................................................................ 6
Interprocessor Communications Bridge Module ..................... 6
Trane Communications Interface Module ............................... 6
Generic BAS Module ............................................................... 6
Power Disconnecting Switches ............................................... 6
Manual Disconnect Switch ...................................................... 6
115V Control Circuit Switch (1S1) ........................................... 6
24 Transformer Switch (1S70) ................................................ 6
Human Interface Module ......................................................... 7
General Operation ................................................................... 7
Menu Keys ............................................................................... 8
Data Manipulation Keys .......................................................... 8
Unit Operation Keys ................................................................ 9
General Status Display .......................................................... 10
Unit "Off" or "Stopped" .......................................................... 10
Unit "On" ................................................................................ 10
No Configuration .................................................................... 10
Factory Presets ..................................................................... 11
Password Protected Screens ................................................ 14
1 Status Menu
1.1 <top level status screen> ................................................. 15
1.2 Active Leaving Solution Setpoint or
Active Ice Build Terminate STP ........................................ 15
1.3 Compressor Status Submenu ......................................... 15
Compressor Relay K11 ......................................................... 16
Compressor Relay K12 ......................................................... 16
Compressor Relay K3 ........................................................... 16
Compressor Relay K4 ........................................................... 16
Compressor Module Ckt 1, Saturated Condensor Temperature16
Refrigerant Ckt 1, Suction and
Sat Liquid Temperatures ....................................................... 16
Refrigerant Ckt 1, Suction and Liquid Pressures ................. 16
Refrigerant Ckt 1, Superheat and
Subcooling Temperatures ...................................................... 16
Compressor Module Ckt 2, Saturated
Condensor Temperature ........................................................ 16
Refrigerant Ckt 2, Suction and
Sat Liquid Temperatures ....................................................... 17
Refrigerant Ckt 2, Suction and Liquid Pressures ................. 17
Refrigerant Ckt 2, Superheat and
Subcooling Temperatures ...................................................... 17
Ckt 1 and 2 Liquid Line Solenoid Valve ................................ 17
Compressor 1A Currents, Phase A and B............................. 17
Compressor 1B Currents, Phase A and C ............................ 17
Compressor 2A Currents, Phase B and C ............................ 17
Compressor 2B Currents, Phase A and C ............................ 17
1.4 General System Status Submenu ................................... 17
CGM Evap Solution Pump Relay and Evap Soln Flow
Switch Proving ....................................................................... 17
MCM Heat Tape Control Relay ............................................. 18
CGM Hot Gas Bypass Control Relay .................................... 18
CGM Ice Building Control Relay ........................................... 18
Setpoint Value Measured, CGM Ext Leaving Soln STP ....... 18
1.5 Controlling Setpoint Status Submenu ........................... 18
Active Leaving Solution Setpoint, and source ...................... 18
Active Ice Build Termination Setpoint, and source ............... 18
Active Hot Start Load Limit Setpt, and source ...................... 19
Active Capacity Limit Setpoint, and source .......................... 19
1.6 Temperature Input Status Submenu .............................. 19
Temp Measured by Sensor Connected To
CGM Entering Soln Temp Input ............................................ 19
Table of Contents
Temp Measured by Sensor Connected To
CGM Leaving Soln Temp Input ............................................. 19
Temp Measured by Sensor Connected To
CGM Outside Air Temp Input ................................................ 19
Compressor Module Ckt 1 Saturated
Condenser Temperature ........................................................ 19
Refrigerant Ckt 1, Suction and
Liquid Line Temperatures ...................................................... 19
Compressor Module Ckt 2 Saturated
Condenser Temperature ........................................................ 19
Refrigerant Ckt 2, Suction and
Liquid Line Temperatures ...................................................... 20
Temp Measured by Sensor Connected To
CGM Zone Temp Input .......................................................... 20
Temp Measured by Sensor Connected To
CGM ICS Temp Input ............................................................ 20
1.7 Misc Input Status Submenu ............................................ 20
CGM Ice Build Command Input ............................................ 20
CGM Evap Soln Flow Switch Input ....................................... 20
Refrigerant Ckt 1, Suction and Liquid Pressures ................. 20
Refrigerant Ckt 2, Suction and Liquid Pressures ................. 20
Compressor 1A Current, Phase A and B .............................. 20
Compressor 1B Current, Phase A and C .............................. 20
Compressor 2A Current, Phase B and C .............................. 21
Compressor 2B Current, Phase A and C .............................. 21
1.8 GBAS 0-5VDC Module Status Submenu ........................ 21
GBAS 0-5VDC Analog Input 1, Voltage and Assignment ..... 21
GBAS 0-5VDC Analog Input 2, Voltage and Assignment ..... 21
GBAS 0-5VDC Analog Input 3, Voltage and Assignment ..... 21
GBAS 0-5VDC Analog Input 4, Voltage and Assignment ..... 21
GBAS 0-5VDC Demand Limit Input Status ........................... 21
GBAS 0-5VDC Binary Output 1, Status and Assignment ..... 21
GBAS 0-5VDC Binary Output 2, Status and Assignment ..... 21
GBAS 0-5VDC Binary Output 3, Status and Assignment ..... 21
GBAS 0-5VDC Binary Output 4, Status and Assignment ..... 21
GBAS 0-5VDC Binary Output 5, Status and Assignment ..... 21
1.9 GBAS 0-10VDC Module Status Submenu ...................... 21
GBAS 0-10VDC Analog Input 1, Voltage and Assignment ... 21
GBAS 0-10VDC Analog Input 2, Voltage and Assignment ... 21
GBAS 0-10VDC Analog Input 3, Voltage and Assignment ... 21
GBAS 0-10VDC Analog Input 4, Voltage and Assignment ... 21
GBAS 0-10VDC Demand Limit Input Status ......................... 22
GBAS 0-10VDC Binary Output 1, Status and Assignment... 22
GBAS 0-10VDC Analog Output 1, Voltage and Assignment 22
GBAS 0-10VDC Analog Output 2, Voltage and Assignment 22
GBAS 0-10VDC Analog Output 3, Voltage and Assignment 22
GBAS 0-10VDC Analog Output 4, Voltage and Assignment 22
GBAS 0-10VDC Analog Output 5, Voltage and Assignment 22
2 Setpoints Menu
HI Leaving Solution Setpoint ................................................. 34
HI Ice Build Terminate Setpoint ............................................. 34
Low Solution Cutout Temp .................................................... 34
Heat Tape Temperature Setpoint .......................................... 34
Hot Start Load Limit Setpoint ................................................ 34
Low Ambient Pump Override Temp....................................... 34
Low Ambient Comp Lockout Temp........................................ 34
Leaving Solution Setpoint Source ......................................... 34
Ice Building Terminate Setpoint Source ................................ 35
Hot Start Load Limit Setpoint Source ................................... 35
Capacity Limit Setpoint Source ............................................. 35
3 Setup Menu ........................................................ 23
3.1 Language Selection and Unit of Measure ...................... 23
3.2 Local/Remote Control and Unit Address ....................... 23
3.3 General Unit Functions Setup Submenu ....................... 23
Reduce Multi-Unit Startup Power Demand, After
Power-Up, Delay Unit Start ................................................... 23
Demand Limit Definition ........................................................ 24
Compressor Lead/Lag Function Enable/Disable .................. 24
Hot Gas Bypass Function Enable/Disable ............................ 24
Hot Gas Bypass Max Run Time ............................................ 24
Hot Start Time Interval........................................................... 24
3
Table of Contents
Hot Operation Response Option ........................................... 24
Pumpdown Function Enable/Disable .................................... 24
Default Chiller Solution Pump Mode ..................................... 24
Evap Soln Pump Off Delay Time........................................... 25
Loop Stabilization Time ......................................................... 25
Low Ambient Compressor Lockout Enable/Disable.............. 25
Leaving Solution Reset Type ................................................ 25
Reset Start and End Temperatures ....................................... 25
Reset Maximum Amount Applied .......................................... 25
Chiller Application (Comfort or Process Cooling) ................. 25
3.4 Ice Building Control Functions Submenu ..................... 26
Ice Building Function Enable/Disable and Ice Building Mode
(Once or Continuous) ............................................................ 26
Ice Build Delay Time (Between Cycles) ................................ 26
3.5 Head Pressure Ctrl Setup Submenu .............................. 26
Saturated Condenser Temp Control Band, Lower
and Upper Limits ................................................................... 26
Saturated Condenser Temp Control Band, Temporary Low
Limit Suppression .................................................................. 27
Saturated Condenser Temperature, Efficiency Check Point 27
Saturated Condenser Temperature,
Low Ambient Control Point .................................................... 27
Saturated Condenser Temperature, Low Ambient Control
Deadband .............................................................................. 27
Saturated Condenser Temperature, OA Temp Supression
Setpoint .................................................................................. 27
3.6 GBAS 0-5VDC Module I/O Assignment .......................... 27
GBAS (0-5VDC) Analog Input 1 Assignment ........................ 27
GBAS (0-5VDC) Analog Input 2 Assignment ........................ 27
GBAS (0-5VDC) Analog Input 3 Assignment ........................ 27
GBAS (0-5VDC) Analog Input 4 Assignment ........................ 27
GBAS (0-5VDC) Binary Output 1 Definition ......................... 28
GBAS (0-5VDC) Output 1 Alarm Assignments ..................... 28
Assign Diag to GBAS (0-5V) Output 1 .................................. 28
GBAS (0-5VDC) Binary Output 2 Definition ......................... 29
GBAS (0-5VDC) Output 2 Alarm Assignments ..................... 29
Assign Diag to GBAS (0-5V) Output 2 .................................. 29
GBAS (0-5VDC) Binary Output 3 Definition ......................... 29
GBAS (0-5VDC) Output 3 Alarm Assignments ..................... 29
Assign Diag to GBAS (0-5V) Output 3 .................................. 29
GBAS (0-5VDC) Binary Output 4 Definition ......................... 29
GBAS (0-5VDC) Output 4 Alarm Assignments ..................... 29
Assign Diag to GBAS (0-5V) Output 4 .................................. 29
GBAS (0-5VDC) Binary Output 5 Definition ......................... 29
GBAS (0-5VDC) Output 5 Alarm Assignments ..................... 29
Assign Diag to GBAS (0-5V) Output 5 .................................. 29
3.7 GBAS 0-10VDC Module I/O Assignment ........................ 29
GBAS (0-10VDC) Analog Input 1 Assignment ...................... 29
GBAS (0-10VDC) Analog Input 2 Assignment ...................... 29
GBAS (0-10VDC) Analog Input 3 Assignment ...................... 29
GBAS (0-10VDC) Analog Input 4 Assignment ...................... 29
GBAS (0-10VDC) Binary Output Definition .......................... 29
GBAS (0-10VDC) Output Alarm Assignments ...................... 29
Assign Diag to GBAS (0-10V) Output ................................... 30
GBAS (0-10VDC) Analog Output 1 Definition....................... 30
GBAS (0-10VDC) Analog Output 2 Definition....................... 30
GBAS (0-10VDC) Analog Output 3 Definition....................... 30
GBAS (0-10VDC) Analog Output 4 Definition....................... 30
GBAS (0-10VDC) Analog Output 5 Definition....................... 30
3.8 CGM Alarm Output Disagnostic Assignments .............. 30
Assign Diagnostic to CGM Alarm Output .............................. 30
3.9 Device Characteristics Setup Definitions ...................... 31
Actuator Setup, Ckt 1 Low Ambient Output, Max Stroke Time 31
Actuator Setup, Ckt 1 Low Ambient Output, Min Voltage ..... 31
Actuator Setup, Ckt 1 Low Ambient Output, Max Voltage .... 31
Actuator Setup, Ckt 1 Low Ambient Output,
Direct/Reverse Acting ............................................................ 31
Actuator Setup, Ckt 2 Low Ambient Output, Max Stroke Time 31
Actuator Setup, Ckt 2 Low Ambient Output, Min Voltage ..... 31
Actuator Setup, Ckt 2 Low Ambient Output, Max Voltage .... 31
Actuator Setup, Ckt 2 Low Ambient Output,
Direct/Reverse Acting ............................................................ 32
Ckt 1 Suction Line Pressure Transducer, 0 PSIG and 100
PSIG Voltages ....................................................................... 32
Ckt 1 Liquid Line Pressure Transducer, 0 PSIG and 400 PSIG
Voltages ................................................................................. 32
Ckt 1 Suction Line Pressure Transducer, 0 PSIG and 400
PSIG Voltages ....................................................................... 32
Ckt 2 Liquid Line Pressure Transducer, 0 PSIG and 400 PSIG
Voltages ................................................................................. 32
Ckt 2 Suction Line Pressure Transducer, 0 PSIG and 400
PSIG Voltages ....................................................................... 32
3.10 Control Algorithm Tuning Parameters ......................... 32
Comfort Cooling, Design Delta Temperature Setpoint ......... 32
Comfort Cooling, Control Response Setpoint ....................... 33
Process Cooling Control Gains, Proportional and Reset Time 33
Process Cooling Control Gains, Proport Bias and Max Cycle
Rate ....................................................................................... 33
Low Ambient Fan Control Gain, Proportional and Reset Time . 33
Low Ambient Fan Control Gain, Rate Time .......................... 33
4 Configuration Menu .......................................... 36
Configuration - Model Num Digit 5,6,7 Capacity (tonnage) .. 36
Configuration - Model Num Digit 8 Line Voltage .................. 36
Configuration - Model Num Digit 11 Ice Building Control ..... 36
Configuration - Model Num Digit 11 Leaving Solution
Setpoint Range ...................................................................... 36
Configuration - Model Num Digit 13+ Hot Gas Bypass Option ... 36
Configuration - Model Num Digit 13+ Voltage/Phase Monitor..... 36
Configuration - Model Num Digit 13+ GBAS 0-5VDC Module .... 36
Configuration - Model Num Digit 13+ GBAS 0-10VDC Module .. 36
Configuration - Model Num Digit 13+
Superheat/Subcool Module ........................................................... 37
Configuration - Model Num Digit 13+ Current Sensing Module .. 37
Configuration - Model Num Digit 13+ TCI
Communications Module ............................................................... 37
Configuration - Model Num Digit 13+ Remote Human Interface 37
Software Revision Number Report, Cold Generator Module
(CGM) .................................................................................... 37
Software Revision Number Report, Single Compressor
Module (SCM) ........................................................................ 37
Software Revision Number Report, Multiple Compressor
Module (MCM) ....................................................................... 37
Software Revision Number Report, GBAS 0-5VDC Module 37
Software Revision Number Report, GBAS 0-10VDC Module37
Software Revision Number Report, Superheat/Subcool
Module (SSM) ........................................................................ 37
Software Revision Number Report, Current Sensing Module
(CSM) ..................................................................................... 38
Software Revision Number Report, Unit Human Interface (HI)
38
Software Revision Number Report, Remote Human Interface
(RHI) ...................................................................................... 38
Software Revision Number Report, TCI4 Communications
Module (TCI) .......................................................................... 38
5 Service Mode Menu ....................................... 39
CGM Evap Solution Pump Relay .......................................... 39
Liquid Line Solenoid Valve Ctrl Relays, Ckt 1 and Ckt 2...... 39
Low Ambient LPC Bypass Relay(s), Ckt 1 and Ckt 2 ........... 39
CGM Hot Gas Bypass Control Relay .................................... 39
Compressor Relays, K11 and K12 or K11,K12, K3 and K4.. 40
Condenser Fan Outputs, 1A, 1B and 1C .............................. 40
Condenser Fan Outputs, 2A, 2B and 2C .............................. 40
Condenser Fan Speed, Ckt 1 and Ckt 2 ............................... 40
CGM Alarm Output ................................................................ 40
MCM Heater Tape Relay K13................................................ 40
CGM Ice Build Relay Output ................................................. 41
GBAS 0-5VDC Module Relay Outputs 1-5 ........................... 41
GBAS 0-10VDC Module Relay Output ................................. 41
GBAS 0-10VDC Module Analog Outputs 1 and 2 Voltages . 41
GBAS 0-10VDC Module Analog Outputs 3 and 4 Voltages . 41
CGM ICS Controlled Relay ................................................... 41
Index .......................................................................................... 65
4
General Information
G = Superheat / Subcooling
P
* = Field Installed Options
Model Number Description
All Trane products are identified by a multiple-character
model number that precisely identifies a particular type of
unit. An explanation of the alphanumeric identification code
is provided below. Its use will enable the owner/operator, installing contractors, and service engineers to define the op-
Sample Model Number: CGAF - C30 4 A A B 0 D etc.
Digit Number: 1,2,3,4 5,6,7 8 9 10 11 12 13 +
Digit 1,2 - Unit Function Digit 9 - Heating Capacity Digit 13, etc. Miscellaneous
CG = Cold Generator A = Standard A = Communications Interface (TCI)
Digit 3 - Unit Type Digit 10 - Design Sequence
A = Air-Cooled Condenser H = Brazed Plate Chiller D = Non-Fused Unit-Mounted Disconnect
Digit 4 - Development Sequence Digit 11 - Leaving Water Setpoint
F = Sixth A = 40 - 50 F w/o Ice Machine
B = 30 - 39 F w/o Ice Machine H = Hot Gas Bypass
Digit 5,6,7 - Nominal Capacity
C20 = 20 Tons E = 20 - 29 F w/o Ice Machine K = Stock Unit
C25 = 25 Tons 1 = 40 - 50 F w Ice Machine L = LonTalk® Communication Interface Module
C30 = 30 Tons 2 = 30 - 39 F w Ice Machine M = *Remote Human Interface
C40 = 40 Tons 3 = 51 - 65 F w Ice Machine N = Generic BAS Module 0-10 VDC Analog Output
C50 = 50 Tons 4 = 20 - 29 F w Ice Machine P = Remote Setpoint Potentiometer P/S
C60 = 60 Tons S = Special Q = *Zone Sensor (Chilled Solution Reset) P/S
Digit 8 - Power Supply
E = 200/60/3 P/S*** W = **Electronic Low Ambient Dampers P/S
F = 230/60/3 Y = *Inter-Processor Comm Bridge (IPCB)
4 = 460/60/3 P/S*** 9 = Packed Stock Unit
5 = 575/50/3
9 = 380/50/3 0 = None ** = Factory or Field Installed Option
D = 415/50/3 1 = UL/CSA *** Available on Pack Stock Units
S = Special
Unit Nameplate
One Mylar unit nameplate is located on the outside upper
left corner of the control panel door. It includes the unit
model number, serial number, electrical characteristics,
weight, refrigerant charge, as well as other pertinent unit
data. A small metal nameplate with the Model Number, Serial Number, and Unit Weight is located just above the Mylar
nameplate, and a third nameplate is located on the inside of
the control panel door.
D = 51 - 65 F w/o Ice Machine J = Generic BAS Module 0-5 VDC Input, Binary O.
Digit 12 - Agency Approval
Hazard Identification
WARNING – Indicates a potentially hazardous
situation which, if not avoided, could result in death or
serious injury.
CAUTION – Indicates a potentially hazardous
situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert against
unsafe practices.
CAUTION - Indicates a situation that may result in
equipment or propertydamage only accidents.
Echelon, LON, LONWORKS, LonBuilder, NodeBuilder, LonManager, LonTalk, LonUsers, Neuron, 3120, 3150, the Echelon logo, and the LonUsers logo are
trademarks of Echelon Corporation registered in the United States and other countries. LonLink, LonResponse, LonSupport, LonMaker, and LonPoint are
trademarks of Echelon Corporation.
eration, specific components, and other options for any specific unit.
When ordering replacement parts or requesting service, be
sure to refer to the specific model number, serial number,
and DL number (if applicable) stamped on the unit nameplate.
B = No Unit Heat Tape (50 Hz Units Only)
C = Compressor Current Sensing (CSM)
E = *Unit Isolators - Neoprene P/S
F = *Unit Isolators - Spring P/S
S = Special
V = Copper Fin Condenser Coil
Commonly Used Acronyms
For convenience, a number of acronyms and abbreviations
are used throughout this manual. These acronyms are alphabetically listed and defined below.
A/D = Analog/Digital
BAS = Building Automation System
CAR = Circuit shuwdown - Auto Reset
Cf = Evaporator limit control integrator
CGA = Air cooled - Cold Generator
UCM = Cold generator module. Contains I/O for most
chilled solution functions.
Comp(s) = compressor(s)
Cond = condenser
Ckt = circuit
CLE = Chilled solution flow integrator
CMR = Circuit shutdown - Manual Reset
CRS = Control response setpoint
CSA = Canadian Standards Association
CCW = counterclockwise
CW = clockwise
DBZ = Width of Dead Band Zone
DDT = Design Delta-T setpoint
Delta T = The temperature difference between EST & LST
Diag = diagnostics
EST = Entering solution temperature
Ent = Entering
5
General Information
Evap = Evaporator
Ext = External
GBAS = Generic Building Automation System Module
gfm = gallons per minute
HGBP = Hot gas bypass
HI = Human Interface
HO = History Only
HSLLS = Hot Start Load Limit setpoint
HVAC = Heating, Ventilation and Air Conditioning
IAR = Information only Auto Reset
IBTS = Ice Build Terminate Setpoint
ICS = Integrated Comfort System
IFW = Informational Warning
INFO = Information Only [Diagnostic]
I/O = Inputs/outputs
IOM = installation/operation/maintenance manual
IPC = Interprocessor communications
IPCB Module = Interprocessor communications bridge
module
IRDT = Ice Rebuild Delay Timer
LCD = Liquid Crystal Display
LCI = LonTalk® Communication Interface
LCI-I = LonTalk® Communication Interface for Intellipak
LED = Light Emitting Diode
LH = left-hand
LonTalk = An open, device networking communications
protocol for controls. This protocol is defined in ANSI
approved standard EIA/CEA-709.1-A-1999.
LSC = Low Solution Temperature Cutout Setpoint
LPC = Low Pressure Cutout [Switch]
LST = Leaving solution temperature
MAR = Machine shutdown - Auto Reset
Max = maximum
MCM = Multiple circuit compressor module
Min = minimum
Misc = miscellaneous
MMR = Machine shutdown - Manual Reset
Mod = module
Mon = monitor
NCS = Number of capacity steps
num = number
OA = Outdoor air
OAT = Outdoor air Temperature
PAR = Partial System Disable, Auto Reset [Diagnostic]
PMR = Partial System Disable, Manual Reset [Diagnostic]
PRT = Pump Run Timer
PSIG = pounds-per-square-inch gauge pressure
PWM = Pulse width modulated
RAM = Random Access Memory
RTM = rooftop module
ROM = Read Only Memory
S/W = Software
Sat - saturated
SCM = single circuit compressor module
SCT = Saturated Condensing Temperature
Soln = solution
STP = setpoint
TCI Module = Trane communications interface module
Temp = temperature
UCM = Unit Control Modules
UL = Underwriter's Laboratories
VFD = Variable Frequency Drive
w.c. = water column
XL = across-the-line start
Glossary of Terms
Carefully review these definitions since they are used
throughout this document and the I.O.M.. Knowledge of
these terms is essential in gaining an understanding of how
these units operate.
Active Setpoint
The setpoint which is currently being used for control by
the setpoint source selection.
Comm3
Trane proprietary network communication protocol.
Comm5
Trane’s implementation of LonTalk (an open network
communication protocol.)
Chilled Solution Temperature Reset
A function that shifts the Leaving Solution Temp Setpoint
an amount based on the value of another parameter—
typically ZoneTemp, Entering Solution Temp or Outdoor
Air Temp. The purpose of this function is to lower unit capacity to better meet load requirements.
Compressor Protection Switch
A pressure switch installed on the suction line that prevents compressor operation below the switch's setpoint.
Control Band
The range of temperatures or pressures which would
normally be maintained by the various control functions.
Control Point
The value of a setpoint that an algorithm is using at any
given time.
Deadband
As applied to LST control, this refers to a range of temperatures equally spaced above and below the CSS in
which the control algorithm is satisfied. There is not adjustment of machine capacity within the deadband.
Emergency Stop
UCM binary input. Can be used for emergency shutdown
of the unit by field-installed contacts. A diagnostic is produced when this input is open.
External Auto/Stop
A binary input on the UCM that allows the use of a fieldsupplied switch to perform normal unit on/off action.
Leaving Solution Setpoint
Active leaving solution setpoint. This setpoint is the control setpoint for process and comfort cooling.
Leaving Solution Temperature Control Point
The revised temperature setpoint after chilled solution
temp reset has been applied.
LonTalk©
An open, device networking communications protocol for
controls. This protocol is defined in ANSI approved standard EIA/CEA-709.1-A-1999.
Low Ambient Compressor Lockout
A function which prevents compressor operation at low
outdoor ambient temperatures.
Remote Human Interface
A human interface module designed to be mounted remotely from the unit. There will be some functional differences between a unit mounted and a remote mounted
human interface module.
Reset Amount Maximum
The maximum amount of reset allowed.
Reset End Temperature
The temperature at which the maximum reset amount
will occur.
Reset Start Temperature
The temperature at which reset will begin.
Unit Control Module
This term is used to describe the set of electronic modules which make up the unit control system.
6
General Information
UCM Control System
Trane Large Commercial Cold Generator Units are controlled by a microelectronic control system that consists of a
network of modules and are referred to as Unit Control
Modules (UCM).
The unit size, peripheral devices, options, etc... determine
the number and type of modules that a particular unit may
employ.
The UCM receives analog and binary inputs, then processes this information and supplies outputs in the form of
modulating voltages, contact closures, etc... to control
damper actuators, fan motors, compressors, valves, and
other electrical devices in the system to maintain set temperature levels.
The UCM provides some equipment protection functions
both directly and indirectly, such as chilled water flow and
compressor lockouts.
Listed below are the various modules that may be employed in a UCM control system.
Cold Generator Module (1U48) (CGM - Standard)
The Cold Generator Module (CGM) responds to cooling requests by energizing the proper unit components based on
information received from other unit modules, sensors, remote panels, and customer supplied binary inputs. It initiates unit operation based on that information.
Compressor Module (1U49) (MCM)
The Compressor module, (Single Circuit & Multiple Circuit),
upon receiving a request for mechanical cooling, energizes
the appropriate compressors and condenser fans. It monitors the compressor operation through feedback information
it receives from various protection devices. It also provides
heat tape output control for heat exchanger protection.
Interprocessor Communications Board (1U55) (IPCB used with Optional Remote Human Interface)
The Interprocessor Communication Board expands communications from the unit’s UCM network to a Remote Human
Interface Panel. DIP switch settings on the IPCB module for
this application should be; Switches 1 and 2 “Off”, Switch 3
“On”.
Trane Communications Interface Module (1U54) (TCI Optional - used with Trane ICS
The Trane Communication Interface module expands communications from the unit’s UCM network to a Trane Tracer
™
100
or a Tracer Summit™ system and allows external
setpoint adjustment and monitoring of status and diagnostics.
DIP Switch settings on the TCI module for these applications should be:
Switches 1, 2, and 3 are “Off”
™
)
Generic Building Automation System Module (1U51 =
GBAS 0-5V, 1U98 = GBAS 0-10V) (Optional - used with
Non-Trane Building Control System)
The Generic Building Automation System (GBAS) module
allows a non-Trane building control system to communicate
with the unit and accepts external setpoints in form of analog inputs (0 - 5 DCV or 0 - 10 DCV depending on the module selected) and a binary Input for demand limit. Five (5)
binary outputs are available on 0 - 5 DCV modules. One (1)
binary output and four (4) analog outputs are available on
the 0 - 10 DCV modules. Refer to the “Field Installed Control Wiring” section for the control wiring to the GBAS module and the various desired setpoints with the corresponding DC voltage inputs.
Lontalk Communication Interface Module (1U54)
(LCI Optional - used on units with Trane ICS
Building Automation Systems)
The LonTalk Communication Interface module expands
communications from the unit’s UCM network to a Trane
Tracer Summit™ or a 3rd party building automation system,
that utilizes LonTalk, and allows external setpoint and configuration adjustment and monitoring of status and diagnostics.
Current Sensing Module (1U90) (CSM - Optional)
Current transformers located around two (2) of the main
power leads for each compressor monitors the running current during compressor operation. The information is sent to
the UCM and can be accessed through the “Compressor
Status” submenu displayed at the Human Interface Module.
Superheat & Subcooling Module (1U91) (SSM Optional)
Monitors the system operating superheat and subcooling
through the use of pressure transducers, liquid line, and
suction line temperature sensors. The information is sent to
the SSM and can be accessed through the “Compressor
Status” submenu displayed at the Human Interface Module.
™
or 3rd party
Power Disconnecting Switches
Manual Disconnect Switch
(Optional 1S14) Manual disconnect switch 1S14, located in
the unit control panel, instead of the power terminal block
1TB1, allows the operator to disconnect power from the
unit's “high” voltage (200V-575V) section, the 115V section,
and the 24V section without having to open the control
panel door. A description of its features and operation are
given in the Installation, Operation, & Maintanence manual.
115V Control Circuit Switch (1S1)
Control circuit switch (1S1) is provided on all units and is located downstream of the 115V transformer 1T1. It allows
the operator to disconnect power from the unit's 115V control components by placing the switch in the "Off" position.
24V Transformer Switch (1S70)
Transformer switch 1S70 is provided on all units and is located downstream of 24V transformers 1T2 and 1T3. It allows the operator to disconnect (24V) power from all of the
unit's control modules by placing the switch in the "Off" position.
For a complete description of the 24V components and operation, refer to the latest edition of the applicable Installation, Operation and Maintenance manual listed on the unit
nameplate.
7
General Information
Human Interface Module
(1U65 = Local 6U66 = Remote)
The Human Interface (HI) Module illustrated in Figure 1 is
the device which enables the customer, building owner, or
contractor, to communicate to the unit the necessary parameters for unit operation.
The local (unit mounted) Human Interface and the Remote
Human Interface Panels’ functions are identical, except for
Service mode which is not available on the Remote Human
Interface Panel.
The local HI Module is located in the unit’s main control
panel. A small door located in the unit’s control panel door
allows access to the HI Module’s keypad and display window.
There is a 2 line by 40 character LCD screen which provides status information for the various unit functions as
well as menus used to set or modify the operating parameters. There is a 16 key keypad adjacent to the LCD screen
which allows the operator to scroll through the various
menus and make adjustments to the setpoints, etc...
The information displayed in the LCD window will be top
level unit status information unless the operator initiates
other displays.
Figure 1
Human Interface Module
General Operation
At power-up, the Human Interface LCD will display one of
three initial screens illustrated in the "General Status" section.
1. Unit Status (Unit Off or Stopped) (The unit is configured
and operational, but is not running). This screen shows
state, mode, and function information when the unit is off
or stopped.
2. Unit Status (Unit On) (The unit is configured and operational, and is running). This screen shows state, mode,
and function information when the unit is on.
3. No Configuration (the unit needs to be configured). This
screen shows that required configuration data is missing.
The LCD screen has a backlight that makes the information
easier to read. The light will go out if no keys are pressed
for 30 minutes. If it goes out, simply press the STATUS key.
8
General Information
Menu Keys
The six keys illustrated in Figure 2 in the MENU area (STATUS, SETPOINTS, SETUP, CONFIGURATION, DIAGNOSTICS, and SERVICE MODE) are used to bring up the various interactive menus where the user inputs and accesses
unit operating data. Pressing these keys will display the initial screen for the menu designated by the key’s name. The
following information describes the keys and their functions
when viewing the various menus.
If no key is pressed for 30 minutes while the LCD is displaying a menu screen, it will revert back to the unit operating
status screen.
Figure 2
Human Interface Keypad
SETPOINTS Key
Pressing the SETPOINTS key will cause the LCD screen to
display the first of the setpoint screens where the operator
will designate default temperature setpoints and setpoint
source information. While scrolling through the setpoint
screens, pressing this key again will cause the LCD to display the first setpoint screen.
DIAGNOSTICS Key
Pressing the DIAGNOSTICS key at any time will allow the
operator to view any unit function failures. The LCD screen
will display one of the diagnostic screens (depending on
which diagnostic, if any, is present). If no key is pressed for
30 minutes while the screen is displaying diagnostic information, it will revert back to the operating status display.
CONFIGURATION Key
Pressing the CONFIGURATION key will cause the LCD
screen to display the first of the configuration screens
where the operator will designate unit configuration data
such as unit type, capacity, installed options, etc...
This information was programmed at the factory. Pressing
the configuration key at any level in the configuration menu
will display the first configuration screen.
Note: This key should be used if the unit's
configuration data is lost or new options are added
in the field, and to view current configuration.
STATUS Key
Pressing the STATUS key causes the LCD to display the
operating status screen; i.e. "On", "Unit Stop", "External
Stop", "Emergency Stop", "Service Mode". Pressing the
NEXT key allows the operator to scroll through the screens
which provide information such as air and refrigerant temperatures, pump operation, compressor operation, as well
as active cooling and compressor lockout setpoints. Pressing the STATUS key while viewing any of the data screens
will cause the LCD to go back to the operating status
screen.
SETUP Key
Pressing the SETUP key will cause the LCD screen to display screens where the operator will designate various operating parameters such as temperature ranges, limits, percentages, etc. for the control of the unit’s various operating
modes. Pressing the SETUP key at any level in the SETUP
menu will display the first SETUP screen.
SERVICE MODE Key
Pressing the SERVICE MODE key causes the LCD to display the first of the service test mode screens showing various unit components which may be turned on or off for the
particular test being performed. Once the status of these
components is designated, the LCD will display screens
that allow the operator to designate the TEST START time
delay for each test.
Data Manipulation Keys
The six data manipulation keys illustrated inFigure 2, (ENTER, CANCEL, + (Plus), - (Minus), PREVIOUS, and NEXT
are used to modify the data within the screens (change values, move the cursor, confirm choices, etc...)
ENTER Key
This key will confirm the new values that were designated
by pressing the + (Plus) or - (Minus) keys at all edit points.
When viewing status and diagnostics screens, it has no
function.
CANCEL Key
After changing data, at an editable screen, but before confirming it with the ENTER key, pressing the CANCEL key
will return the data to its previous value. This key shall also
function to clear active diagnostics.
9
General Information
+ (Plus) Key
When viewing a setpoint screen, this key will increase the
temperature or pressure value of the setpoint. When working with a status menu, it will add the current status display
to the custom menu. When viewing the setup or service test
screens, it will increase setpoints or toggle choices On or
Off at each edit point.
- (Minus) Key
This key when viewing the setpoint screen will decrease the
temperature or pressure value of the setpoint. When viewing the setup or service test screens, it will decrease
setpoints or toggle choices On or Off at each edit point.
When viewing the custom menu, pressing the - (Minus) key
will remove the status screen from the custom menu. When
viewing diagnostics screens it has no function.
PREVIOUS Key
Pressing the PREVIOUS key causes the LCD to scroll
backwards through the various displays for each menu. At
displays with multiple edit points, it moves the cursor from
one edit point to another.
NEXT Key
Pressing the NEXT key causes the LCD to scroll forward
through the various displays for each menu. At displays
with multiple edit points it moves the cursor from one edit
point to another.
Unit Operation Keys
AUTO Key
Pressing the AUTO key at any time will cause the display to
go to the top level status display and, if the unit is shutdown, will cause the unit to begin operation in the appropriate mode no matter what level in the menu structure is currently being displayed. If the current display is an editable
display, the AUTO key will confirm the desired edit.
STOP Key
Pressing the STOP key will cause the unit to transition to
the stop state. If the current display is editable, pressing the
STOP key will cancel the desired edit.
TEST START Key (SERVICE)
Pressing this key while viewing any screen in the SERVICE
Mode menu will start the service test. When viewing status,
setup, setpoint, and diagnostics screens, it has no function.
CUSTOM Key
The Custom menu is simply a status menu that contains
screens that the user monitors most frequently. The Custom
menu can only contain five status screens. To create the
Custom menu, press the STATUS key, followed by the
NEXT key (this brings up the initial status screen). If you
want to add this screen to the Custom menu, press the +
(Plus) key, if not, press the Next key again until a status
screen appears that you would like to add to the Custom
menu. Pressing the + (Plus) key while viewing any of the
various status screens will add that screen to the Custom
menu. Once the Custom menu is programed it can be accessed by pressing the CUSTOM key. To remove a status
screen from the Custom menu, press the CUSTOM key,
then press the NEXT key until the status screen that you
want to remove appears, then press the - (Minus) key.
After adding a screen to the Custom menu, the following
screen is displayed:
“Item Added to Custom Menu”
If the + (PLUS) key is pressed and the Custom menu is full,
the following screen is displayed:
“Custom Menu Is Full”
After deleting a screen from the Custom Menu, the following screen is displayed:
“Item Deleted from Custom Menu”
If the CUSTOM key is pressed and there are no entries, the
following screen is displayed:
No items are selected for Custom Report
See Operators Manual to select entries
10
General Information
(Blank)
(Diagnostics)
Trouble Indicator
____________________ ____________________
General Status Display
Anytime the unit is powered up, or the STATUS, AUTO, or STOP keys are pressed, the unit mounted Human Interface will
display one of the following three general status display screens. The operator will then be able to enter keystrokes which
will allow him to navigate through a set of menus and submenus in order to provide/access various monitoring, setup, and
configuration infromation. The Human Interface will not display screens or parts of screens for which the unit is not configured.
Unit "Off" or "Stopped"
If at power up the unit is not running, the following display will appear on the Human Interface LCD screen. When this screen
is being displayed, the only functional keys are the six menu keys (STATUS, SETPOINTS, DIAGNOSTICS, SETUP, CONFIGURATION, AND SERVICE MODE), the AUTO key, the CUSTOM key, and the STOP key.
Mode of Oper ation
(On)
(Off)
_______________
Solution Pump
_____
Top Level State
(External Stop)
(Emergency Stop)
Trouble Indicator
(Unit Shutdown)
(Unit Stop) (Blank)
Unit "On"
If the unit has entered an operating state (running), the following display will appear on the Human Interface LCD screen.
When this screen is being displayed, the only functional keys are the six menu keys (STATUS, SETPOINTS, DIAGNOSTICS, SETUP, CONFIGURATION, AND SERVICE MODE), the AUTO key, the CUSTOM key, and the STOP key.
Mode of Operation
(Cool 0)
(Hot Gas Bypass)
(Cool 1)
(Cool 2) (On)
(Cool 3) (Off)
(Cool 4)
(Flow SW State Fail)*
_______________
Top Level State
(Servi ce Mode On) Ice Bui lding Co mple te
(Comfort Cooling) Ice Rebuild Delay
(Process Cooling) Unit Standby (Diagnostics)
(Ice Building) (Blank)
(Loop Stabilization)
Solution Pump
_____
*Service Test Mode Only - Flow switch failed to open after solution pump turned off.
No Configuration
If at power up the unit has not been programmed with the necessary configuration data for normal unit operation, the following display will appear on the Human Interface LCD screen. When this screen is being displayed, the only functional key is
the CONFIGURATION key.
No Configuration Present
Press Configuration Key
Note: This screen will only appear when the CGM has been field replaced. Refer to the Configuration Menu.
11
General Information
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Factory Presets
If your application requires different settings, turn to the
listed page beside the function, press the designated funcThe CGM controlled unit has many operating functions
whose settings are preset at the factory, but may be modified to meet the unique requirements of each job. The following list identifies each of the unit's adjustable functions
tion menu key, then press and hold the NEXT or PREVI-
OUS key until its screen appears on the LCD. Once the
proper screen appears, simply follow the programming in-
structions given below the applicable screen in this manual.
and the value assigned to it. If these factory presets match
your application's requirements and the"System Start-Up
procedures in the Installation, Operation & Maintyenance
manual has been completed, simply press the AUTO key at
Note: Record any changes made to the factory
preset values in the corresponding space provided.
the Human Interface module to begin unit operation.
Factory Preset Changed See page... To adjust
To to adjust Press....
Setpoints
Leavin
Low Ambient Compressor Lockout
Temperature Setpoint 40 de
Heat Tape Temperature Setpoint 40 de
Hot Start Load Limit Setpoint 71 de
Ice Buildin
Low Solution Cutout Temperature 35 de
Low Ambient Pump Override Temperature 35 de
Use Leavin
Use Ice Buildin
Use Hot Start Load Limit Setpoint From: HI STP Menu 35 SETPOINTS
Use Capacity Limit Setpoint From: No Source Selected 35 SETPOINTS
Solution Setpoint 44 deg F 34 SETPOINTS
F 34 SETPOINTS
F 34 SETPOINTS
F 34 SETPOINTS
Terminate Temperature 27 deg F 34 SETPOINTS
F 34 SETPOINTS
F 34 SETPOINTS
Solution Setpoint From: HI STP Menu 34 SETPOINTS
Terminate Setpoint From: HI STP Menu 34 SETPOINTS
Information format
Display Text in En
Display Units in En
Unit Control Local 23 SETUP
Unit Address
General Unit Functions Setup
Delay unit Start 0 Seconds 23 SETUP
Demand Limit Definition None 24 SETUP
Hot Gas Bypass Function Disabled 24 SETUP
Hot Gas Bypass Max Run Time 30 Minutes 24 SETUP
Hot Start Time In terval 60 Minutes 24 SETUP
Hot Operation Response Option 50% Capacity
Pumpdown Function Disabled 24 SETUP
Compressor Lead/La
Default Chiller Solution Pump Mode Auto 24 SETUP
Evaporator Solution Pump Off Delay Time 30 Seconds 25 SETUP
Loop Stabilization Time 120 Seconds 25 SETUP
Low Ambient Compressor Lockout Enabled 25 SETUP
Leavin
Chiller Application Comfort 25 SETUP
Evaporator Solution Flow Switch Provin
OA Temp Reset Type: Start Temp 70 de
OA Temp Reset Type: End Temp 50 de
OA Temp Reset Type: Max Amount of Reset 5 de
Zone Temp Reset Type: Start Temp 78 de
Zone Temp Reset Type: End Temp 75 de
Zone Temp Reset Type: Max Amount of Reset 5 de
Enterin
Enterin
Enterin
Solution Reset Type None 25 SETUP
Solution Temp Reset Type: Start Temp 45 deg F 25 SETUP
Solution Temp Reset Type: End Temp 40 deg F 25 SETUP
Solution Temp Reset Type: Max Amount 5 deg F 25 SETUP
Function Disabled 24 SETUP
lish Language 23 SETUP
lish 23 SETUP
23 SETUP
(Auto Reset Dia
Disabled 25 SETUP
.) 24 SETUP
F 25 SETUP
F 25 SETUP
F 25 SETUP
F 25 SETUP
F 25 SETUP
F 25 SETUP
12
General Information
Factory Presets (Continued)
Factory Preset Changed See page... To adjust
To to adjust Press....
Ice Building C ontrol Fuctions
Ice Building Function Disabled 26 SETUP
Ice Building Mode One Time 26 SETUP
Ice Rebuild Delay Time 360 Minutes 26 SETUP
GBAS 0-5 VDC Module I/O Assignments
GBAS (0-5 VDC) Analog Input 1 Assignment Not Assigned 27 SETUP
GBAS (0-5 VDC) Analog Input 2 Assignment Not Assigned 27 SETUP
GBAS (0-5 VDC) Analog Input 3 Assignment Not Assigned 27 SETUP
GBAS (0-5 VDC) Analog Input 4 Assignment Not Assigned 27 SETUP
GBAS (0-5 VDC) Binary Output 1 Definition Indicate any comp
is running 28 SETUP
GBAS 0-5 V Output 1 Alarm Assignments Any active diagnostic 28 SETUP
GBAS (0-5 VDC) Binary Output 2 Definition Indicate selected
diagnostics 29 SETUP
GBAS 0-5 V Output 2 Alarm Assignments Comp protection LPC
Open C kt 1 29 SETUP
Comp protection LPC
Open Ckt 2 (40-60 Ton) 29 SETUP
Compressor Trip Ckt 1 29 SETUP
Compressor Trip Ckt 2
(40 - 60 Ton) 29 SETUP
Comp Contactor Fail Ckt 1 29 SETUP
Comp Contactor Fail Ckt 2
(40 - 60 Ton) 29 SETUP
Low Press Control
Open - Ckt 1 29 SETUP
Low Press Control
Open - Ckt 2 (40-60 Ton) 29 SETUP
GBAS (0-5 VDC) Binary Output 3 Definition Indicate Unit at
Max capacity 29 SETUP
GBAS (0-5 VDC) Output 3 Alarm Assignments Any active diagnostic 29 SETUP
GBAS (0-5 VDC) Binary Output 4 Definition Indicate selected
diag alarms 29 SETUP
GBAS (0-5 VDC) Output 4 Alarm Assignments Any active diagnostic 29 SETUP
GBAS (0-5 VDC) Binary Output 5 Definition Indicate selected
diag alarms 29 SETUP
GBAS (0-5 VDC) Output 5 Alarm Assignments Any active diagnostic 29 SETUP
GBAS 0-10 VDC Module I/O Ass ignments
GBAS (0-10 VDC) Analog Input 1 Assignment Not Assigned 29 SETUP
GBAS (0-10 VDC) Analog Input 2 Assignment Not Assigned 29 SETUP
GBAS (0-10 VDC) Analog Input 3 Assignment Not Assigned 29 SETUP
GBAS (0-10 VDC) Analog Input 4 Assignment Not Assigned 29 SETUP
GBAS (0-10 VDC) Binary Output Definition Indicate selected
GBAS (0-10 VDC) Output Alarm Assignments Any active diagnostic 30 SETUP
GBAS (0-10 VDC) Analog Output 1 Assignment Leaving solution temp 30 SETUP
GBAS (0-10 VDC) Analog Output 2 Assignment Entering solution temp 30 SETUP
GBAS (0-10 VDC) Analog Output 3 Assignment Active cooling capacity 30 SETUP
GBAS (0-10 VDC) Analog Output 4 Assignment Outside air temperature 30 SETUP
CGM alarm output de finitions
diag alarms 29 SETUP
Any Active Diagnostic 30 SETUP
13
General Information
S
C
Factory Presets (Continued)
Factory Preset Changed See page... To adjust
To to adjust Press....
Actuator Setup Definitions
Number 1 Low Ambient Maximum Stroke 30 seconds 31 SETUP
Number 1 Low Ambient Minimum Voltage 2.0v 31 SETUP
Number 1 Low Ambient Maximum Voltage 10.0v 31 SETUP
Number 1 Low Ambient Acting Direct 31 SETUP
Number 2 Low Ambient Maximum Stroke 30 seconds 31 SETUP
Number 2 Low Ambient Minimum Voltage 2.0v 31 SETUP
Number 2 Low Ambient Maximum Voltage 10.0v 31 SETUP
Number 2 Low Ambient Acting Direct 31 SETUP
Ckt 1 Suction Line Pressure Transducer - voltage at 0 PSIG 0.118 V 32 SETUP
Ckt 1 Suction Line Pressure Transducer - voltage at 100 PSIG 4.847 V 32 SETUP
Ckt 2 Suction Line Pressure Transducer - voltage at 0 PSIG 0.118 V 32 SETUP
Ckt 2 Suction Line Pressure Transducer - voltage at 100 PSIG 4.847 V 32 SETUP
Ckt 1 Liquid Line Pressure Transducer - voltage at 0 PSIG 0.118 V 32 SETUP
Ckt 1 Liquid Line Pressure Transducer - voltage at 400 PSIG 4.847 V 32 SETUP
Ckt 2 Liquid Line Pressure Transducer - voltage at 0 PSIG 0.118 V 32 SETUP
Ckt 2 Liquid Line Pressure Transducer - voltage at 400 PSIG 4.847 V 32 SETUP
Head Pressure Control Setup
Saturated condenser Temp Control Band
(Lower Limit) 85 deg F 26 SETUP
Saturated condenser Temp Control Band
(Upper Limit) 125 deg F 26 SETUP
Saturated condenser Temp Control Band
(Temporary Low Limit Suppression) 10 deg F 27 SETUP
Saturated condenser Temp
(Efficiency Check Point) 110 deg F 27 SETUP
Saturated condenser Temp (Low Ambient
Control Point) 100 deg F 27 SETUP
aturated condenser Temp (Low Ambient
ontrol Deadband)
Saturated condenser Temp (OA Temp
Suppression Setpoint)
4.0 deg F 27 SETUP
40 deg F 27 SETUP
14
General Information
Password Protected Screens
Some of the operating displays on the Human Interface LCD screen are intended to be accessed by qualified users only,
and require a password to change. The following screens display the various programming sections that require a password
in order to view or to modify the preset operating parameters. The password for each screen is a different series of + (Plus)
or - (Minus) key strokes in a predefined sequence. Shown below are the password protected screens, and the passwords for
accessing them.
The following screens display the various programming sections that require a
specific PASSWORD to be entered by a qualified operator in order to view or
to modify the operating parameters.
The following screen will appear if the PASSWORD is not entered within approximately
15 seconds.
Password Entry Time Limit Exceeded
1. Press the NEXT key until the following screen is displayed.
Configuration is Password Protected
Please Enter Pasword:
2. Press the + or - keys in this sequence ( + - - - ) to access this restricted screen.
3. Press the ENTER key to confirm the password and enter the menu.
4. Press the NEXT key until the following screen is displayed.
Dia gnostic Re set is Password Pr otected
Please Enter Pasword:
1. Press the + or - keys in this sequence ( - + + ) to access this restricted screen.
2. Press the ENTER key to confirm the password and Lock the definitions.
3. Press the NEXT key until the following screen is displayed.
Diagnostic Log is Password Protected
Please Enter Pasword: __________
1. Press the + or - keys in this sequence ( - + + -) to access thi s restricted screen.
2. Press the ENTER key to confirm the password and Lock the definitions.
3. Press the NEXT key until the following screen is displayed.
15
System Operating Status
See "General Status" Display Description
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Active Ice Build Terminate STP = 0 - 99 F
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STATUS Menu
The STATUS menu is used to view various operating conditions such as temperatures and humidity levels. It’s used to
view unit component status such as fan, compressor,
heater, and economizer operation, as well as setpoint status.
Press the STATUS key to enter into the status menu. The
"STATUS MODE" will automatically return to the power up screen
after 30 minutes, if no keys are pressed.
Cool 0 Solution Pump Off
Standb
1. Press the NEXT key to scroll forward thro ugh the status screens.
2. Press the PREVIOUS key to scroll backwards to view previously
displayed status screens.
3. Press the + (Plus) key while viewin
that screen to the custom menu. Refer to the custom menu for
the creation and maintenance of customized menus.
Active Leaving Solution Setpoint 55.0 F
Temp: Entering 55.0 F Leaving 50.0 F
This screen is displayed when the unit is in Ice Buildin
Active Ice Build Ter mina te STP 5 5.0 F
Temp: Entering 55.0 F Leaving 50.0 F
Diagnostics
any status screen to add
OR
.
The screens shown in this section are for example only.
Pressing the + (Plus) key while viewing any of the status
display screens will add that screen to the Custom menu.
When a status screen is displayed for 30 minutes without a
key being pressed, the LCD screen will revert to the general
operating status display. If this happens, press the STATUS
key again to return to the status menu. The following are
examples of status screens that may be viewed by pressing
the STATUS key.
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Enteri n
Leavin
Used on Units:
Possible Values:
Enteri ng = 0 - 99.9 F
Leavin
All Units
All Units
Active Solution Setpoint = 0 - 99 F
= 0 - 99.9 F
= 0 - 99.9 F
All Units
= 0 - 99.9 F
Compressor Status Submenu
Press ENTER to View Data in This Submenu
1. Press the ENTER key to advance to the followin
2. Press the NEXT key to bypass this menu and advance to
"General Status Submenu"
screen.
Note:
The ran
are 0 to 99.9 F. "ERR" will appear if the
temperature is out of ran
Used on Units:
e for all temperature inputs
e.
All Units
16
System Operating Status
K3 - On, Off, Locked,
/
Suction range 0 - 100 PSIG
Comp Off
q
p
The following screens are displayed for 20 through 60 Ton units.
Compressor Relay K11 Off
Enabled
1. Press the NEXT key until the following screen is displayed. K11 - On, Off, Locked, or
Compressor Relay K12 Off
Enabled
1. Press the NEXT key until the following screen is displayed.
The following screens are displayed for 40 through 60 Ton units.
Compressor Relay K3 Off
Enabled
1. Press the NEXT key until the following screen is displayed.
Compressor Relay K4 Off
Enabled
Disabled By:
Bad Cond Temp Sensor Hot Start Operation
Bad Ent Soln Sensor Low Ambient Lockout
Bad Leav Soln Sensor Low Leav Soln Cutout
Compressor Protection Low Pressure Cutout
Compressor Protect LPC LPC Delay
Contactor Failure Minimum Off Time
Demand/Capacity Limit Over/Under Voltage
Evap Flow Protection Phase Loss/Reversal
Evap Limit Control Tracer Lockout
Used on Units:
Possible Values:
K4 - On, Off, L ocked,
K12 - On , Off, Locked
20 thru 60 Ton Units
1. Press the NEXT key until the following screen is displayed.
Compre ssor Module Ckt 1
Satura ted Conde nsor Temperature 8 1.0 F
1. Press the NEXT key until the following screen is displayed.
The following three screens are applicable when Superheat
Subcool Module is installed.
Refrigerant Ckt 1 - Temperature Data
Suction 75 .0 F Sat Liquid 81.0 F
1. Press the NEXT key until the following screen is displayed.
Refrigerant Ckt 1 - Pressure Data
Suction 72 PSIG Li
1. Press the NEXT key until the following screen is displayed. Comp Off
Refrigerant Circuit 1
Su
erhea t 28.0 F Subcooling 18.0 F
1. Press the NEXT key until the following screen is displayed.
The following screens are displayed for 40 through 60 Ton units.
Compressor Module Ckt 2
Saturated Condenser Temperature 97.0 F
uid 265 PSIG
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Liquid range 0 - 400 PSIG
Used on Units:
Possible Values:
Used on Units:
Possible Values:
All Units
-40 to 200 F
With superheat/subcool module
-40 to 200 F
With superheat/subcool module
With superheat/subcool module
0 - 99.9 F
40 Thru 60 Ton Units
-40 to 200 F
17
1. Press the NEXT key until the following screen is displayed.
/
Suction range 0 - 100 PSIG
40 Thru 60 Ton Units
The following three screens are applicable when Superheat
Subcool Module is installed.
Refrigerant Ckt 2 - Temperature Data
Suction 72.0 F Sat Liquid 9 7.0 F
1. Press the NEXT key until the following screen is displayed.
Refrigerant Ckt 2 - Pressure Data
Suction 65 PSIG Liquid 251 PSIG
1. Press the NEXT key until the following screen is displayed.
Refrigerant C ircuit 2
Superheat 2 8.0 F Subcooling 18 .0 F
1. Press the NEXT key until the following screen is displayed.
Ckt 1 Liquid Line Solenoid Valve: OPEN
System Operating Status
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Liquid range 0 - 400 PSIG
Comp Off
Used on Units:
Possible Values:
Comp Off
Used on Units:
Possible Values:
40-60 Ton Units with superheat/subcool module
-40 to 200 F
40-60 Ton Units with superheat/subcool module
40-60 Ton Units with superheat/subcool module
0 - 99.9 F
20, 25 & 30 Ton Units
Open, Closed
The following screen is displayed for 40 through 60 Ton units.
OR
Ckt 1 Liquid Line Sole noid Valve: OPEN
Ckt 2 Liquid Line Sole noid Valve: CLOSED
1. Press the NEXT key until the following screen is displayed.
Compressor 1A Phase Currents - Amps
Phase A 86 Phase B 84
1. Press the NEXT key until the following screen is displayed.
Compressor 1B Phase Currents - Amps
Phase A 81 Phase C 78
1. Press the NEXT key until the following screen is displayed.
The following screens are displayed for 40 through 60 Ton units.
Compressor 2A Phase Currents - Amps
Phase B 88 Phase C 90
1. Press the NEXT key until the following screen is displayed.
Compressor 2B Phase Currents - Amps
Phase A 93 Phase C 89
1. Press the NEXT key until the following screen is displayed.
End of Submenu (NEXT) to R e-enter STATU S
2. Pressing the NEXT key will display the beginning of
the Submenu.
3. Press the NEXT key again to advance to the following screen.
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Open, Closed
All Units with Current Sensing Module
0 - 255
All Units with Current Sensing Module
0 - 255
40-60 Ton Units with Current Sensing Module
0 - 255
40-60 Ton Units with Current Sensing Module
0 - 255
General System Status Submenu
Press ENTER to View Data in This Submenu
1. Press the ENTER key until the following screen is displayed.
2. Press the NEXT key to bypass this menu and advance to
"Controlling Setpoint Status Submenu"
CGM Evap Solution Pump Relay: OFF
Evap Soln Flow Switch Proving: FLOW
1. Press the NEXT key until the following screen is displayed.
Used on Units:
Possible Values:
Evap Soln Flow Switch Proving = Flow, No Flow
All Units
CGM Evap So lu tion Pump Relay = On, Off
18
This screen is displayed on units with Brazed Plate.
Used on Units:
g
g
Used on Units:
With Ice Building Control
g
g
Used on Units:
g
g
g
MCM He at Tape Control Relay: OFF
1. Press the NEXT key until the followin
This screen is displayed when Hot Gas Bypass is installed.
CGM Hot Gas Bypass Control Relay: OFF
screen is displayed.
System Operating Status
Possible Values:
Used on Units:
Possible Values:
All Brazed Plate Units
On, Off
With Hot Gas Bypass option
On, Off
1. Press the NEXT key until the followin
CGM Ice Building Control R elay: ON
1. Press the NEXT key until the followin
This screen is displayed when Leavin
is selected.
Setpoint Value Measured
CGM Ext Leaving Soln STP Input is 4 4.0 F
1. Press the NEXT key until the followin
End Of Sub-Menu (NEXT) To Re-e nter STA TUS
2. Pressin
the Submenu.
3. Press the NEXT key a
the NEXT key will display the beginning of
ain to advance to the following screen.
screen is displayed.
screen is displayed.
Solution Setpoint Source
screen is displayed.
Controlling Setpoint Status Submenu
Press ENTER to View Data in This Submenu
1. Press the ENTER key until the following screen is displayed.
2. Press the NEXT key to bypass this menu and advance to
"Temperature Input Status Submenu"
Active Leaving Solution Setpoint From
EXT LEAVING SOLN STP INPUT is 55.0 F
1. Press the NEXT key until the following screen is displayed.
This screen is displayed when Ice Building is enabled.
Active Ice Build Terminate Setpoint From
HUMAN INTERFACE STP MENU is 33.0 F
Possible Values:
Source se le cted
Possible Values:
Used on Units:
Possible Values:
On, Off
With CGM Ext Leaving Soln Setpoint
0 - 99
All Units
Human Interface STP Menu,
Ext Leaving Soln STP Input,
GBAS 0-10 VDC Module,
GBAS 0-5 VDC Module,
BAS/NETWORK
Setpoi nt Range = 0 - 99.9 F
Used on Units:
Possible Values:
With Ice Building Option
Human Interface STP Menu,
Ext Leaving Soln STP Input,
GBAS 0-10 VDC Module,
GBAS 0-5 VDC Module,
BAS/NETWORK (Tracer) (TCI only)
Setpoi nt Range = 0 - 99.9 F
19
1. Press the NEXT key until the following screen is displayed.
Active Hot Start Load Limit Setpt From
HUMAN INTERFACE STP MENU is 78.0 F
1. Press the NEXT key until the following screen is displayed.
Activ e Capacity Limit Setpoint Fr om
HUMAN INTERFACE STP MENU is 63 %
1. Press the NEXT key until the following screen is displayed.
End of Submenu (NEXT) to Re-e nter STATUS
2. Pressing the NEXT key will display the beginning of
the Submenu.
3. Press the NEXT key again to advance to the following screen.
Temperature Input Status Submenu
Press ENTER to View Data in This Submenu
System Operating Status
Used on Units:
Possible Values:
GBAS 0-10 VDC Module,
GBAS 0-5 VDC Module,
Setpoint Range = 0 - 99.9 F
Used on Units:
Possible Values:
GBAS 0-10 VDC Module,
GBAS 0-5 VDC Module,
BAS/NETWORK
Setpoint Range = 0 - 99.9 F
Blank
All Units
Human Interface STP Menu,
With GBAS 5V or GBAS 10V or TCI or LCI
No Source Selected,
1. Press the ENTER key until the following screen is displayed.
2. Press the NEXT key to bypass this menu and advance to
"Misc Input Status Submenu"
Temp Measur ed By Sensor Connected To
CGM Entering Soln Temp Input 55 F
1. Press the NEXT key until the following screen is displayed.
Temp Measur ed By Sensor Connec te d To
CGM Leaving Soln Temp Input 50.0 F
1. Press the NEXT key until the following screen is displayed.
Temp Measured By Sensor Connected To
CGM Outside Air Temp Input 86.0 F
1. Press the NEXT key until the following screen is displayed.
Compressor Module Ckt 1
Saturated Condenser Temperature 81.0 F
1. Press the NEXT key until the following screen is displayed.
Refrigerant Ckt 1 - Temperature Data
Suction 75.0 F Sat Liquid 81.0 F
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
All Units
All Units
All Units
All Units
With Superheat/Subcooling installed
-40.0 to 200 F
-40.0 to 200 F
-40.0 to 200 F
-40.0 to 200 F
-40.0 to 200 F
1. Press the NEXT key until the following screen is displayed.
The following screens are displayed for 40 through 60 Ton units.
Compr essor Module Ckt 2
Saturated Condenser Temperature 97.0 F
20
Used on Units:
Possible Values:
40 through 60 Ton
-40.0 to 200 F
System Operating Status
With Ice Building Control Option
Suction =
Suction =
Refrigerant Ckt 2 - Temperature Data
Suction 72.0 F Sat Liquid 97.0 F
1. Press the NEXT key until the following screen is displayed.
Temp Measured By Sensor Connected To
CGM Zone Temp Input 75.0 F
1. Press the NEXT key until the following screen is displayed.
Temp Measured By Sensor Connected To
CGM ICS Temp Input 62.0 F
1. Press the NEXT key until the following screen is displayed.
End of Submenu (NEXT) to Re-enter STATUS
2. Pressing the NEXT key will display the beginning of
the Submenu.
3. Press the NEXT key again to advance to the following screen.
Misc Input Status Submenu
Press ENTER to View Data in This Submenu
1. Press the ENTER key until the following screen is displayed.
2. Press the NEXT key to bypass this menu and advance to
"GBAS 0-5VDC Module Status Submenu"
Used on Units:
40-60 Ton with Superheat/Subcooling
Module installed
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
-40.0 to 200 F
All Units
-40.0 to 200 F
With TCI Module Installed
-40.0 to 200 F
CGM Ice Build Command Input: OFF
1. Press the NEXT key until the following screen is displayed.
CGM Evap Soln Flow Switch Input: FLOW
1. Press the NEXT key until the following screen is displayed.
Refrigerant Ckt 1 - Pressure Data
Suction 72 PSIG Liquid 265 PSIG
1. Press the NEXT key until the following screen is displayed.
Refrigerant Ckt 2 - Pressure Data
Suction 65 PSIG Liquid 251 PSIG
1. Press the NEXT key until the following screen is displayed.
Compressor 1A Phase Currents - Amps
Phase A 86 Phase B 84
1. Press the NEXT key until the following screen is displayed.
Compressor 1B Phase Currents - Amps
Phase A 81 Phase C 78
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Used on Units:
Possible Values:
Liquid = 0.0 to 400.0 PSIG
Comp Off
Used on Units:
Possible Values:
Liquid = 0.0 to 400.0 PSIG
Comp Off
Used on Units: With
Possible Values:
Used on Units: With
Possible Values:
Off, Make Ice
All Units
Flo w, No Flo w
All Units with Superheat/Subcooling
0.0 to 100.0 PSIG
40 - 60 Ton Units with Superheat/Cooling
0.0 to 100.0 PSIG
Current Sensing Module
0 to 255
Current Sensing Module
0 to 255
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