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Table of Contents

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

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