Emerson Liebert ICOM-DO Service Manual

Large Systems iCOM Microprocessor Environmental Training and Service Manual TM-10098: Rev. 02/06

iCOM Control Training and Service Manual The integral (I) term is determined by two things: the difference between the return air temperature and cont

iCOM Control Training and Service Manual MISMATCH 130 UNIT CODE 16 MISMATCH " Alarm yes yes no 131 UNIT CODE 17 MISMATCH " Alarm yes yes

iCOM Controls Training and Service Manual Chapter 3 iCOM Control Board Connections Introduction This section describes the basic connection poi

iCOM Control Training and Service Manual 101 LCD Display Board The Advanced and Advanced with Graphics LCD display board is mounted to the system unit

iCOM Controls Training and Service Manual 102 Control Board DIP Switches and Plug Connectors This section deals with the 20 plug connections and the t

iCOM Control Training and Service Manual iCOM Control Board DIP Switch #2 Settings Connector Input/ Output Type SettingP7-1 (+)/ P7-2 (-) NTC Thermi

iCOM Controls Training and Service Manual iCOM Control Board Jumper Settings Jumper Type SettingP19 Watchdog * On: Shunt on Pins 1 & 2 Off: No Sh

iCOM Control Training and Service Manual Large Display Jumper Settings Jumper Type SettingP3 Watchdog * Shunt on Pins 1 & 2 P4 Manual Contrast

iCOM Controls Training and Service Manual Small Display Jumper Settings Jumper Type SettingP4 Manual Contrast (Rev. 2 only) * Shunt on Pins 2 & 3

iCOM Control Training and Service Manual DS Systems: P3: Not Used P4: 24 VAC Power P4-1: Fuse 1 (24 VAC) P4-3: Fuse 3 (24 VAC) P4-2: Fuse 2 (2

iCOM Controls Training and Service Manual P22: Glycool Valve (Std. Pressure Actuator) P22-1: 24 VAC Out (Close Q18) P22-4: DCV Signal P22-2: DCV Sign

iCOM Controls Training and Service Manual A suggested tuning procedure is as follows: 1. Initially adjust the integral and derivative settings to 0%

iCOM Control Training and Service Manual P38: Smoke Detector P38-1: 24 VAC Out SDC) P38-3: 24 VAC (RAD1) P38-2: E4 (SDC) P38-4: no connection P39

iCOM Controls Training and Service Manual P67: Temperature/ Humidity Sensors P67-1: P16-3: P67-6: P16-4: P65: Site Monitoring Signals – No

iCOM Control Training and Service Manual 111 Fuse Board Layout: All Units This section deals with the seven (7) plug connectors on the fuse board. Th

iCOM Controls Training and Service Manual 112 Temperature/ Humidity Board: All Units This section deals with the single plug connection located on the

iCOM Control Training and Service Manual NOTES 113

iCOM Controls Training and Service Manual 114 Chapter 4 General Troubleshooting Data * Basic Operation of the Opto and Triac * Troublesho

iCOM Control Training and Service Manual 115 The temperature sensor senses a rise in temperature. The rise is transmitted to the Central Processing

iCOM Controls Training and Service Manual 116 BASIC OPERATION OF THE TRIAC To better understand the operation of the triac, we need to look at the mo

iCOM Control Training and Service Manual 117 The triacs that Liebert uses are standard in the industry and are rated at a 2-amp capacity. You can che

iCOM Controls Training and Service Manual 118 Basic Operation of the Opto-Isolator The purpose of the opto-isolator is to provide isolation of two vo

iCOM Control Training and Service Manual Temperature Control Operations and Charts The temperature proportional control band value is divided into

iCOM Control Training and Service Manual 119 Troubleshooting the Output Opto-Isolator The opto-isolator IC chips used in these circuits are the H11J

iCOM Controls Training and Service Manual 120 Troubleshooting the Input Opto-Isolator The opto-isolator IC chips used in these circuits are the H11AA

iCOM Control Training and Service Manual 121 Microprocessor Control Board: Typical Location othe Opto-Isolators and Triacs Input Opto

iCOM Controls Training and Service Manual Note: Use Pin 5 on the input opto-isolator with reference to the V- terminal for voltage check. The voltage

iCOM Control Training and Service Manual iCOM Diagnostics / Service Mode Program The iCOM controller has a valuable tool built into software under t

iCOM Controls Training and Service Manual Basic Troubleshooting Steps: Example: Unit load is not energizing. Programming: 1. Read and record al

iCOM Control Training and Service Manual 2. If the programming is correct and the output opto-isolator is functioning properly but the load device is

iCOM Controls Training and Service Manual Moisture Content Charts The following charts show moisture content of various levels of relative humidity f

iCOM Control Training and Service Manual Moisture Content at Temperature = 80°F (26.7ºC) RH Grains Per Cu Ft Grains Per Lb. 35 3.864 53.59368 36

iCOM Controls Training and Service Manual Moisture Content at Temperature = 79°F (26.1ºC) RH Grains Per Cu Ft Grains Per Lb. 35 3.7485 51.9917 3

iCOM Controls Training and Service Manual The temperature controller deactivates the second stage of cooling (lag compressor) when the return air temp

iCOM Control Training and Service Manual Moisture Content at Temperature = 78°F (25.6ºC) RH Grains Per Cu Ft Grains Per Lb. 35 3.633

iCOM Controls Training and Service Manual Moisture Content at Temperature = 77°F (25.0ºC) RH Grains Per Cu Ft Grains Per Lb. 35 3.521

iCOM Control Training and Service Manual Moisture Content at Temperature = 76°F (24.4ºC) RH Grains Per Cu Ft Grains Per Lb. 35 3.41215

iCOM Controls Training and Service Manual Moisture Content at Temperature = 75°F (23.9ºC) RH Grains Per Cu Ft Grains Per Lb. 35 3.3068

iCOM Control Training and Service Manual Moisture Content at Temperature = 74°F (23.3ºC) RH Grains Per Cu Ft Grains Per Lb. 35 3.20355

iCOM Controls Training and Service Manual Moisture Content at Temperature = 73°F (22.8ºC) RH Grains Per Cu Ft Grains Per Lb. 35 3.10345

iCOM Control Training and Service Manual Moisture Content at Temperature = 72°F (22.2ºC) RH Grains Per Cu Ft Grains Per Lb. 35 2.9988

iCOM Controls Training and Service Manual Moisture Content at Temperature = 71°F (21.7ºC) RH Grains Per Cu Ft Grains Per Lb. 35 2.91165

iCOM Control Training and Service Manual Moisture Content at Temperature = 70°F (21.1ºC) RH Grains Per Cu Ft Grains Per Lb. 35 2.81925

iCOM Controls Training and Service Manual Moisture Content at Temperature = 69°F (20.6ºC) RH Grains Per Cu Ft Grains Per Lb. 35 2.7293

iCOM Control Training and Service Manual 2 Stage Compressorized Cooling – With Dead Band Temp Set Point: 70°F Proportional Band: 8°F Dead Band: 2°F

iCOM Control Training and Service Manual Moisture Content at Temperature = 68°F (20.0ºC) RH Grains Per Cu Ft Grains Per Lb. 35 2.64985

iCOM Controls Training and Service Manual Moisture Content at Temperature = 67°F (19.4ºC) RH Grains Per Cu Ft Grains Per Lb. 35 2.5578

iCOM Control Training and Service Manual Moisture Content at Temperature = 66°F (18.9ºC) RH Grains Per Cu Ft Grains Per Lb. 35 2.4759

iCOM Controls Training and Service Manual Moisture Content at Temperature = 65°F (18.3ºC) RH Grains Per Cu Ft Grains Per Lb. 35 2.39575

iCOM Control Training and Service Manual 143 Suction Transducer Information (Codes A124-A128) % psig psia

iCOM Controls Training and Service Manual Digital Scroll High Temperature Sensor Chart NTC (Code S606 and S608) 144

iCOM Control Training and Service Manual Unit Code Description The iCOM controller uses a system parameters auto configuration methodology. The unit

iCOM Controls Training and Service Manual Troubleshooting Checklist 1. Check the obvious before beginning troubleshooting. A. Be sure that a r

iCOM Control Training and Service Manual Glossary of Unit and System Parameters User Menu Code Setpoints Type U102 Temperature setpoint Unit U103

iCOM Controls Training and Service Manual Code Display Setup Type U401 Language Display U402 Date Unit U403 Time Unit U404 Temperature Indication

iCOM Controls Training and Service Manual and will be supplied with an electrical cylinder unloader valve. The electrical solenoid valve used to unlo

iCOM Control Training and Service Manual Code Service contacts Type U703 Address line 1 System U704 Address line 2 System U705 Address line 3

iCOM Controls Training and Service Manual Fan Settings Type S013 Number of starts Unit S014 Working hours Unit S015 Average working time Unit

iCOM Control Training and Service Manual S063 Actual bonus Unit El. Heater 3 Settings Type S068 Number of starts Unit S069 Working hours Unit S

iCOM Controls Training and Service Manual S338 Status Filter Unit S339 Status Customer Input 1 Unit S340 Status Customer Input 2 Unit S341 Status C

iCOM Control Training and Service Manual S614 Calibrated Temp. Sensor A Unit S615 Humidity Sensor A Unit S616 Calibrated Humidity Sensor A Unit

iCOM Controls Training and Service Manual S407 Electrical Unit S408 Hot water On/Off Unit S409 Hot gas Unit S410 3P actuator runtime Unit S411 3

iCOM Control Training and Service Manual A117 Low pressure threshold Phase 1 Unit A118 Low pressure threshold Phase 2 Unit A124 LP1 sensor 0% =

iCOM Controls Training and Service Manual Glossary of Terms Address: A pattern of characters that identifies a unique storage location Algorithm:

iCOM Control Training and Service Manual CPU: Central Processing Unit; the part of a computer system that contains the main storage, arithmetic unit

iCOM Controls Training and Service Manual Impedance: Opposition that a circuit offers to the flow of current through it, measured in Ohms Input: A

iCOM Control Training and Service Manual 4 Stage Compressorized Cooling – No Dead Band Temp Set Point: 70°F Proportional Band: 8°F 70 71

iCOM Control Training and Service Manual Prefill: The period of time between when the water begins to fill the pan and the humidifier lamps turn on

iCOM Controls Training and Service Manual Computer and Network Terms Agent: A program that performs some information gathering or processing task in

iCOM Control Training and Service Manual Ethernet: A local-area network (LAN) architecture developed by Xerox Corporation in cooperation with DEC and

iCOM Controls Training and Service Manual • wide-area networks (WANs): The computers are farther apart and are connected by telephone lines or radio

iCOM Control Training and Service Manual There are a variety of standard protocols from which programmers can choose. Each has particular advantages

iCOM Controls Training and Service Manual Understanding IP Addressing: Every computer that communicates over the Internet is assigned an IP address t

iCOM Control Training and Service Manual 165 Network Information Commonly known as: Network wire, Ethernet cable, Cat5 cable, the information followi

iCOM Controls Training and Service Manual 166 Switches perform the same mechanical function, but they also include software inside that allows communi

iCOM Control Training and Service Manual How To Use The Schematics As you look at the outside edge of the electrical schematic (drawing), you will se

iCOM Controls Training and Service Manual Electrical Schematics 182769 Liebert DS iCOM Global Control 8 - 12 Ton 182770 Liebert DS iCOM Global Contro

iCOM Controls Training and Service Manual The example below is based on a temperature set point of 70°F with a control band length of 4°F, which is ½

iCOM Control Training and Service Manual Notes 169

iCOM Control Training and Service Manual As the return air temperature increases Cooling 1, lead compressor unloaded, is activated at 72°F or ½ of the

iCOM Controls Training and Service Manual Optional Dual Compressor Digital Scroll Operation 2 compressor operation C1 C2Start/ st

iCOM Control Training and Service Manual iCOM Training & Service Manual 1

iCOM Control Training and Service Manual temperature is at least 8°F below the return air temperature, or 3°F lower than the return air temperature fo

iCOM Controls Training and Service Manual Glycool at 50% Capacity – No Dead Band Temp Set Point: 70° Proportional Band: 8° 70

iCOM Control Training and Service Manual 2-Stage or 4-Stage control method. If the chilled water temperature is not cold enough the valve control ban

iCOM Controls Training and Service Manual of the heating proportional band. The third electric heating stage activates when the return air temperatur

iCOM Control Training and Service Manual 3 Stage Electric Reheat – With Dead Band Temp Set Point: 70°F Proportional Band: 8°F Dead Band: 2°F 65

iCOM Controls Training and Service Manual Humidity Control Humidification and/ or Dehumidification Required, in Percent (%) The humidity control pro

iCOM Control Training and Service Manual Temperature Set PointHumidity Set PointHumidity Proportional Band = 6%Content Le

iCOM Controls Training and Service Manual Relative Humidity Control Relative humidity control is based on the humidity content in the return air. The

iCOM Control Training and Service Manual Infrared Humidification – No Dead Band Humid Set Point: 50% Proportional Band: 8% 45 46 47

iCOM Controls Training and Service Manual Infrared Humidification – With Dead Band Humid Set Point: 50% Proportional Band: 8% Dead Band: 2% 45

iCOM Controls Training and Service Manual Disclaimer of Warranties and Limitations of Liabilities The authors and editors have taken every precautio

iCOM Control Training and Service Manual If the off time is less than 15 hours (or user programmed value) the pre-fill program is bypassed and the inf

iCOM Controls Training and Service Manual Dehumidification Operation The Relative Humidity control program is used to illustrate the dehumidification

iCOM Control Training and Service Manual Note: in the above example that the control band begins at the 50% humidity set point and has a length of 4%

iCOM Controls Training and Service Manual The humidity controller activates the first stage of dehumidification operation when the return air humidity

iCOM Control Training and Service Manual When the return air humidity level decreases to 52%RH or 50% of the dehumidification control band the second

iCOM Controls Training and Service Manual dehumidification process. The end user can choose to select from the following selections: Parameter Opera

iCOM Control Training and Service Manual Additional Programs Start The unit fan is activated. The unit can be switched on/ off from 2 inputs: 1. R

iCOM Controls Training and Service Manual Fan Alarm / Fan settings The fan operation is controlled by two (2) digital devices: the Loss of Airflow di

iCOM Control Training and Service Manual The Startup and Freeze Protection Program The sequence for the call for cooling with the progr

iCOM Controls Training and Service Manual during the second time frame the cooling process locks off and will require a power off sequence. Next Mai

iCOM Control Training and Service Manual Table of Contents Chapter 1: Temperature/ Humidity Control 6Temperature Control Types 6Intelligent Control

iCOM Control Training and Service Manual The control always takes the component with the most on/ off (cycling) as the reference component, which aski

iCOM Controls Training and Service Manual Starts per Day Optimum: the number of individual component starts that is considered as good or optimum. T

iCOM Control Training and Service Manual Freecooling and Dual cooling will operate in the same manner as chilled water with the supervision of the Sup

iCOM Controls Training and Service Manual The Basics for Cooling Unit Placement: Installation instructions are found in the product manuals for the Co

iCOM Control Training and Service Manual 6. Each set of unit control boards must be set up individually, then connected to the network switch and che

iCOM Controls Training and Service Manual Setting Parameters Example: 2 Units with Small Display’s All Network parameters are viewed and program

iCOM Control Training and Service Manual Example: 2 Units, One Large Display and One Small Display All Network parameters are viewed and programmed

iCOM Controls Training and Service Manual Example: Large Wall Display and Five Units with Small Displays All Network parameters are viewed and prog

iCOM Control Training and Service Manual Example: 4 Units in 2 Groups with 2 Large Displays All Network parameters are viewed and programmed using

iCOM Controls Training and Service Manual Teamwork Teamwork Modes Teamwork is the ability to group unit functionality, while connected in a network,

iCOM Controls Training and Service Manual Chapter 2: Programming Functions 52Programming Functions 52iCOM Display Components and Functions 53iCOM K

iCOM Control Training and Service Manual Teamwork Mode 2 In teamwork mode 2 all system parameters are shared equally as in teamwork mode 1. The lead

iCOM Controls Training and Service Manual The Lead/ Lag function may be used in the either the No Teamwork Mode, in Teamwork 1 Mode and in Teamwork 2

iCOM Control Training and Service Manual Notes: 51

iCOM Controls Training and Service Manual Chapter 2 Programming Functions The standard iCOM control is supplied with a front panel mounted small d

iCOM Control Training and Service Manual iCOM Display Components and Functions The large display is shown for reference. The keypad and LEDs are ide

iCOM Controls Training and Service Manual iCOM Keyboard Layout: Icon Key Name Function On/ Off Key Controls the operation state of the unit. Ala

iCOM Control Training and Service Manual iCOM Display Symbols/ Icons hot water el. heaters dehum humhornfan compressor freeco

iCOM Controls Training and Service Manual Programming Functions Status Display The unit display will show the unit operational mode(s), return air te

iCOM Control Training and Service Manual Menu Screens ICON Symbols Menu Parameters Names Level 1: User Level 2: Service Level 3: Advanced Reada

iCOM Controls Training and Service Manual User Menu Icons and Descriptions: Icon Name Descriptions Available Display °C/ °F % RH SET Set Points To

iCOM Control Training and Service Manual Unit Control Board: Opto-Isolator/ Triac Legends 121iCOM Diagnostics/ Service Mode Programs 123Basic Trouble

iCOM Control Training and Service Manual Service Menu Icons and Descriptions: Icon Name Descriptions Available Display °C/ °F % RH SET Set Points T

iCOM Controls Training and Service Manual Advanced Menu Icons and Descriptions: Icon Name Descriptions Available Display Factory Settings Factory c

iCOM Control Training and Service Manual User Menu: Set Point Parameters U100 series Menu Line Parameter Default Range U101 Password - - U102

iCOM Controls Training and Service Manual User Menu: Graphics Parameters Parameter Default Range System Temperature Time Scale 24 Hours 8, 32 min

iCOM Control Training and Service Manual User Menu: Set Alarm Parameters U200 series Menu Line Parameter Default Range U201 Password - - U202

iCOM Controls Training and Service Manual User Menu: Sensor Data U300 series: Page 1 of 2 Menu Line Parameter Time/ Value U313 Daily High Tempert

iCOM Control Training and Service Manual User Menu: Total Run Hours Parameters U500 series Menu Line Parameter Range (Hours) U501 - Actual U502

iCOM Controls Training and Service Manual User Menu: Service Contacts U700 series Menu Line Parameter Range U701 U702 U703 Address Line 1

iCOM Control Training and Service Manual Service Menu Parameters The Service menu display allows the user to customize the various unit settings for s

iCOM Controls Training and Service Manual Service Menu: Set Point Parameters S100 series: Page 2 of 2 Menu Line Parameter Default Range S112 Pass

iCOM Controls Training and Service Manual Chapter 1 Temperature and Humidity Control Programs This section provides details on how your Liebert iC

iCOM Control Training and Service Manual Service Menu: Standby Setting / Lead-lag Parameters S500 series Menu Line Parameter Default Range S501

iCOM Controls Training and Service Manual Service Menu: Fan Settings Maintenance / Wellness Parameters: Page 2 of 8 Menu Line Parameter Default R

iCOM Control Training and Service Manual Service Menu: Compressor 2 Settings Maintenance / Wellness Parameters: Page 4 of 8 Menu Line Parameter

iCOM Controls Training and Service Manual Service Menu: Electric Heater 2 Settings Maintenance / Wellness Parameters: Page 6 of 8 Menu Line Parame

iCOM Control Training and Service Manual Service Menu: Humidifier Settings Maintenance / Wellness Parameters: Page 8 of 8 Menu Line Parameter Def

iCOM Controls Training and Service Manual Service Menu: Diagnostics / Service Mode: Page 2 of 5 Menu Line Parameter Range S312 Password - S313 H

iCOM Control Training and Service Manual Service Menu: Diagnostics / Service Mode: Page 4 of 5 Menu Line Parameter Range S334 Password - S335 St

iCOM Controls Training and Service Manual Service Menu: Set Alarm Parameters S200 series: Page 1 of 6 Menu Line Parameter Default Range S201 Pass

iCOM Control Training and Service Manual Service Menu: Set Alarm Parameters: Page 3 of 6 Menu Line Parameter S223 Password S224 DELAY

iCOM Controls Training and Service Manual Service Menu: Set Alarm Parameters: Page 5 of 6 Menu Line Parameter S249 Password S250 DELAY

iCOM Control Training and Service Manual untrue type of statement is not used. The consideration now is how to set the input value into a membership

iCOM Control Training and Service Manual Service Menu: Sensor Calibration/ Setup Parameters S600 series: Page 1 of 3 Menu Line Parameter Range S60

iCOM Controls Training and Service Manual Service Menu: Sensor Calibration/ Setup Parameters: Page 3 of 3 Menu Line Parameter Default Range S623 P

iCOM Control Training and Service Manual Service Menu: System / Network Setup Parameters Series S800: Page 2 of 2, System View Menu Line Function

iCOM Controls Training and Service Manual Service Menu: System / Network Setup Parameters Series S800: Page 2 of 2, Unit View Menu Line Function D

iCOM Control Training and Service Manual Service Menu: Option Setup Parameters S400 series:: Page 2 of 2 Menu Line Function Default Range S412 Pa

iCOM Controls Training and Service Manual Advanced Menu Parameters The Advanced menu displays allows the service technician to set the unit configurat

iCOM Control Training and Service Manual Advanced Menu: Factory Settings Parameters A100 series: Page 2 of 6 Advanced Menu: Factory Settings Param

iCOM Controls Training and Service Manual Advanced Menu: Factory Settings Parameters: Page 4 of 6 Advanced Menu: Factory Settings Parameters A100 s

iCOM Control Training and Service Manual Advanced Menu: Factory Settings Parameters: Page 6 of 6 Menu Code Parameter Default Range A145 Password

iCOM Controls Training and Service Manual Advanced Menu: Factory Access Parameters A200 series: Menu Code Parameter Default Range A201 Password

iCOM Controls Training and Service Manual more efficient and precise for most applications, but system performance based on room conditions is not as

iCOM Control Training and Service Manual Events Notifications Parameters ID Type Description (Large Display) Description (Small Display) 000 Alar

iCOM Controls Training and Service Manual Events Notifications Parameters (continued) ID Type Description (Large Display) Description (Small Displ

iCOM Control Training and Service Manual Events Notifications Parameters (continued) ID Type Description (Large Display) Description (Small Displa

iCOM Controls Training and Service Manual Events Notifications Parameters (continued) ID Type Description (Large Display) Description (Small Displa

iCOM Control Training and Service Manual 007 LOSS OF AIRFLOW not enough airflow through the unit. this event can be set to switch off the unit or to d

iCOM Controls Training and Service Manual 028 HUM HRS EXCEEDED actual working hours of the fan are higher than the threshold set. Warning no no - 02

iCOM Control Training and Service Manual 048 Unit 7 disconnected " Warning no no - 049 Unit 8 disconnected " Warning no no - 050 Unit 9

iCOM Controls Training and Service Manual 072 COMP 2 OVERLOAD Compressor 2 stopped because of overload Alarm no yes yes (broken co will remain off

iCOM Control Training and Service Manual 098 DIG SCROLL2 HIGH TEMP Digital Scroll compressor #1 shut off because of high temperature (sensor is inside

iCOM Controls Training and Service Manual 114 UNIT CODE MISSING this alarm appears if a totally new board was started the very first time in its life.