TM-10098:Rev. 02/06
Environmental Training and Service Manual
Large Systems
iCOM Microprocessor
Training & Service Manual
iCOM Control Training and Service Manual
iCOM
Page
Table of Contents
Chapter 1 Temperature/ Humidity Control
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Chapter 2: Programming Functions
Chapter 4: General Troubleshooting Data
Chapter 3: iCOM Hardware Connections
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Electrical Schematics
How To Use The Schematics
Glossary of Terms
Computer and Network Terms
Temperature Control Program Types
Chapter Temperature and Humidity Control Programs
Cooling and/ or Heating Required, in Percent %
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Membership
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Knowledge Base/Decision Making
Consequence
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Proportional P Control
Proportional + Integral PI Control
Proportional + Integral + Derivative PID Control
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A suggested tuning procedure is as follows
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Operations and Charts
Temperature Control
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Temp Set Point + 1/2 Proportional Band
2 Stage Compressorized Cooling – No Dead Band
2 Stage Compressorized Cooling – With Dead Band
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STAGECOMPRESSORS, UNLOADER STATE
Temp Set Point + 1/2 Proportional Band
4 Stage Compressorized Cooling – No Dead Band
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4 Stage Compressorized Cooling – With Dead Band
STAGE TEMPERATURE
As the return air temperature increases Cooling 1, lead compressor unloaded, is activated at 72F or ½ of the dead band value plus 25% of the cooling control band. If the return air temperature continues to increase Cooling 2, lag compressor unloaded, will activate at 73F or ½ of the dead band value plus 50% of the cooling control band. If the return air temperature continues to increase Cooling 3, lead compressor unloaded, is activated at 74F or ½ of the dead band value plus 75% of the cooling control band. If the return air temperature continues to increase Cooling 4, lag compressor loaded, will activate at 75F or ½ of the dead band value plus 100% of the cooling control band
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1 compressor operation Switch 2nd
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Switch 1st compressor ON
compressor ON
Glycool at 100% Capacity – No Dead Band
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iCOM Controls Training and Service Manual
Glycool at 50% Capacity – No Dead Band
Dual Source Cooling
Staged Electric Reheat
Dual Cooling at 100% Capacity – No Dead Band
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3 Stage Electric Reheat – No Dead Band
Temp Set Point - 1/2 Proportional Band
3 Stage Electric Reheat - With Dead Band
Humidity Control Program Types
Humidity Control
Humidity
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Humidity
Proportional
Humidifier Operation
Operations and Charts
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Relative Humidity Control
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Infrared Humidification – No Dead Band
Humidity Set Point - 1/2 Proportional Band
Infrared Humidification – With Dead Band
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Autoflush Control Flow Chart
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Dehumidification Operation
Humid Set Point: 50%
Humidity Set Point + 1/2 Proportional Band
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Reheating during Dehumidification
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ParameterOperation
No Normal Delayed
Start
Additional Programs
Auto restart
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High Pressure Cutout
Fan Alarm / Fan settings
Suction Pressure Transducer
Call for Cooling
The Startup and Freeze Protection Program
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iCOM Controls Training and Service Manual
Next Maintenance Calculation
Calculation of next Maintenance Parameters
The Maintenance Calculation is done as follows
Parameters for next Maintenance Calculation
General Maintenance Settings
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Shared Parameters an understanding
Networking and Functions
Understanding the iCOM Network setup process
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The Basics for Cooling Unit Placement
The Basics for Hardware
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The Basic for Programming
Example: Display: Example: Control Board:
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iCOM Controls Training and Service Manual
Setting Parameters
Unit No.
Unit No.
Power
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Switch
Unit No.
U2U:Switc
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Line S802: Number units connected: xx 01 -
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iCOM Controls Training and Service Manual
Teamwork
Teamwork Modes
“No” Teamwork
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Unit Lead/ Lag or Running/ Standby Function
Teamwork Mode
Typical Lead/ Lag Running/ Standby Function
Standby & Cascade
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iCOM Control Training and Service Manual
Notes
Programming Functions
Chapter
Small Graphic Display with Panel Mount Bezel
Optional Large Graphic Display with Panel
iCOM Display Components and Functions
iCOM Keyboard Layout
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iCOM Keyboard Layout
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Icon
Key Name
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iCOM Display Symbols/ Icons
Status Display
Programming Functions
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Menu Screens ICON Symbols Menu Parameters Names
Level 2: Service
Level 1: User
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User Menu Icons and Descriptions
Icon
Name
C/ F
Service Menu Icons and Descriptions
Advanced Menu Icons and Descriptions
Menu Parameters
User Menu Parameters
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User Menu: Spare Parts List, Large Display Only
Default
User Menu: Set Point Parameters U100 series
Menu Line
Default
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User Menu: Graphics Parameters
Parameter
Default
User Menu: Set Alarm Parameters U200 series
Menu Line
Parameter
User Menu: Active Alarms Parameters Parameter
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User Menu: Display Setup Parameters U400 series
Default
Default
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User Menu Total Run Hours Parameters U500 series
Menu Line
User Menu: Service Contacts U700 series
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Menu Line
Parameter
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Service Menu Parameters
Default
Menu Line
Service Menu: Unit Diary Log Parameter
Default
Menu Line
Parameter
Default
iCOM Control Training and Service Manual
Default
Menu Line
Default
Default
Menu Line
Parameter
Default
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Default
Menu Line
Default
iCOM Controls Training and Service Manual
Default
Parameters: Page 6 of
Default
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Menu Line
Parameter
Menu Line
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Parameter
Range
Menu Line
iCOM Control Training and Service Manual
Parameter
Range
Service Menu Set Alarm Parameters
Default
Default
Menu Line
Service Menu: Set Alarm Parameters: Page 3 of
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Service Menu Set Alarm Parameters
Menu Line
Service Menu: Set Alarm Parameters: Page 5 of
iCOM Controls Training and Service Manual
Service Menu Set Alarm Parameters
Menu Line
Menu Line
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Parameter
Range
Default
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Default
Menu Line
Default
iCOM Control Training and Service Manual
Default
Menu Line
Default
iCOM Controls Training and Service Manual
Default
Menu Line
Default
iCOM Control Training and Service Manual
Default
Menu Line
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Advanced Menu Parameters
Menu Code
Parameter
Default
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Default
Menu Code
Default
iCOM Controls Training and Service Manual
Default
Menu Code
Menu Code
Default
Parameter
Range
Menu Code
Default
Parameter
Range
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Events Notifications Parameters
Type
Description Large Display
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Events Notifications Parameters continued
Type
Description Large Display
Events Notifications Parameters continued
iCOM Control Training and Service Manual
Type
Description Large Display
Event ID number, Description and Function
Events Notifications Parameters continued
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Default
LOSS OF
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HUM HRS
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Unit
COMP
DIG SCROLL2
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UNIT CODE
MISMATCH
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Control Board Connections
Chapter
Introduction
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LCD Display Board
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Large Disdplay Small Display
Control Board DIP Switches and Plug Connectors
Unit Mounted Control Board
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iCOM Control Board DIP Switch #2 Settings
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Connector
Setting
iCOM Control Board Jumper Settings
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Setting
Default Setting
Setting
Large Display Jumper Settings
Default Setting
Small Display DIP Switch #3 Settings
Small Display Jumper Settings
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Setting
Default Setting
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DS Systems
P4 24 VAC Power
P8: 24 VAC Alarm Inputs
P22 Glycool Valve Std. Pressure Actuator
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P32: Compressor Devices
P33: Compressor Devices
P38 Smoke Detector
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P39: Firestat & Remote Shutdown
P40: Basic Unit Connections
P65: Optional Intelleslot Power Suplly
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P64: Unit Large Display Digital Signals
P66: Unit Small Display Digital Signals
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Fuse Board Layout: All Units
P4: 24 VAC Power
P41: 24 VAC Power
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Temperature/ Humidity Board: All Units
Temperature/ Humidity Assembly Housing
Temperature/ Humidity Board
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NOTES
Chapter
General Troubleshooting Data
C P U
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Isolation
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Areas of Control
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BASIC OPERATION OF THE TRIAC
Semiconductor
Semiconductor Showing No Movement of Electrons
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Schematic Drawing for the Triac
Front and Left Side Views of the Triac
Basic Operation of the Opto-Isolator
Output Opto-Isolator
Input Opto-Isolator
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Troubleshooting the Output Opto-Isolator
Output Opto-IsolatorPin Location
OUTPUT VOLTAGE CHECK
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Troubleshooting the Input Opto-Isolator
Input Opto-IsolatorPin Location
INPUT VOLTAGE CHECK
Microprocessor Control Board
Alarm Input Opto-IsolatorLegend
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Opto
Control Output Triac Legend
Control Output Opto-IsolatorLegend
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Opto
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iCOM Diagnostics / Service Mode Program
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Basic Troubleshooting Steps
Programming
DC Voltage check
If 24 VAC is present perform the following
iCOM Control Training and Service Manual
iCOM Controls Training and Service Manual
Moisture Content Charts
Moisture Content at Temperature = 80F 26.7ºC
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Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 79F 26.1ºC
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Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 78F 25.6ºC
iCOM Control Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 77F 25.0ºC
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 76F 24.4ºC
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 75F 23.9ºC
iCOM Controls Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 74F 23.3ºC
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 73F 22.8ºC
iCOM Controls Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 72F 22.2ºC
iCOM Control Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 71F 21.7ºC
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 70F 21.1ºC
iCOM Control Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 69F 20.6ºC
iCOM Controls Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 68F 20.0ºC
iCOM Control Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 67F 19.4ºC
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 66F 18.9ºC
iCOM Control Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
Moisture Content at Temperature = 65F 18.3ºC
iCOM Controls Training and Service Manual
Grains Per Cu Ft
Grains Per Lb
iCOM Control Training and Service Manual
Suction Transducer Information Codes A124-A128
Digital Scroll High Temperature Sensor Chart
NTC Code S606 and S608
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Unit Code Description
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FACTORY SERVICE TECHNICIAN
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Troubleshooting Checklist
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Glossary of Unit and System Parameters User Menu
Set Alarms
Code
Display Setup
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Timer
Code
Service contacts
Service Menu
Standby settings / Lead-lag
Wellness / General Settings
Fan Settings
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Compr. 1 Settings
Compr. 2 Settings
Humidifier Settings
El. Heater 3 Settings
Diagnostics / Service
Code
Set Alarms
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Code
Type
System / Network Setup
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Options Setup
Code
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Advanced Menu
Service contacts
Factory Settings
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Access
Code
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Glossary of Terms
Hysteresis: Differential
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Input: An incoming information signal
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Prefill: The period of time between when the water begins to fill the pan and the humidifier lamps turn on
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iCOM Controls Training and Service Manual
Computer and Network Terms
Ethernet: A local-areanetwork LANarchitecture developed by Xerox Corporationin cooperation with DECand Intelin 1976. Ethernet uses a bus or star topologyand supports data transfer ratesof 10 Mbps. The Ethernet specification served as the basis for the IEEE 802.3 standard, which specifies the physicaland lower softwarelayers. Ethernet uses the CSMA/CDaccess method to handle simultaneous demands. It is one of the most widely implemented LAN standards
•the type of error checking to be used
iCOM Controls Training and Service Manual
There are a variety of standard protocols from which programmerscan choose. Each has particular advantages and disadvantages; for example, some are simpler than others, some are more reliable, and some are faster. From a userspoint of view, the only interesting aspect about protocols is that your computeror device must supportthe right ones if you want to communicate with other computers. The protocol can be implemented either in hardwareor in software
iCOM Control Training and Service Manual
Understanding IP Addressing: Every computer that communicates over the Internet is assigned an IP address that uniquely identifies the device and distinguishes it from other computers on the Internet. An IP address consists of 32 bits, often shown as 4 octets of numbers from 0-255represented in decimal form instead of binary form. For example, the IP address 168.212.226.204 in binary form is:
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iCOM Control Training and Service Manual
Network Information
What is networking?…
HUBS AND SWITCHES
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UNIT IDENTIFICATION OR ADDRESSING
Twisted pair - 10baseT - UTP Cable
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How To Use The Schematics
Electrical Schematics
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182769 Liebert DS iCOM Global Control 8 - 12 Ton
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