Large Systems iCOM Microprocessor Environmental Training and Service Manual TM-10098: Rev.
iCOM Control Training and Service Manual iCOM Training & Service Manual 1
iCOM Controls Training and Service Manual Disclaimer of Warranties and Limitations of Liabilities The authors and editors have taken every precaution to ensure accuracy and completeness in this manual. The authors and editors make no expressed or implied warranty of any kind with regard to the documentation in this manual. Liebert Corporation assumes no responsibility, and disclaims all liability for incidental or consequential damages resulting from the use of this information or from errors or omissions.
iCOM Control Training and Service Manual Table of Contents Chapter 1: Temperature/ Humidity Control 6 Temperature Control Types Intelligent Control Proportional Control Proportional + Integral (PI) Control Proportional + Integral + Derivative (PID) Control Temperature Control Operations and Charts 2 Stage Compressorized 4 Stage Compressorized Cooling Dual Compressor Digital Scroll Operation Glycool Cooling Dual Source Cooling Staged Reheat Humidity Control Absolute (Predictive) Humidity Control Relative
iCOM Controls Training and Service Manual Chapter 2: Programming Functions 52 Programming Functions iCOM Display Components and Functions 52 53 iCOM Keypad Layout Descriptions iCOM Display Symbols/ Icons 54 55 Programming Functions Status Display Screens Menu Screens – Icons/ Parameter Names User Menu Icons and Descriptions Service Menu Icons and Descriptions 56 56 57 58 59 Advanced Menu Icons and Descriptions User Menu Parameters Service Menu Parameters Advanced Menu Parameters Event Notifications
iCOM Control Training and Service Manual Basic Troubleshooting Steps Moisture Content Charts 121 123 124 126 Suction Transducer Information Digital Scroll High Temperature Sensor Chart Unit Code Description Troubleshooting Checklist Glossary of Unit/ Systems Parameters 143 144 145 146 147 Unit Control Board: Opto-Isolator/ Triac Legends iCOM Diagnostics/ Service Mode Programs Glossary of Terms 156 Computer and Network Terms 160 Network Information 165 How To Use The Schematics 169 Electrical S
iCOM Controls Training and Service Manual Chapter 1 Temperature and Humidity Control Programs This section provides details on how your Liebert iCOM control responds to the user programmed inputs values and room conditions. Refer to this section when you need specific information control operation. This section includes details on four (4) user selectable temperature control programs and two (2) user selectable and humidity control programs.
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 set, qualify this membership with rules, then decide on the output consequence for action. It is not really that simple, but it is basically how it works.
iCOM Controls Training and Service Manual more efficient and precise for most applications, but system performance based on room conditions is not as predictable as standard approaches that use a fixed equation. The Liebert Intelligent Control includes rules that significantly enhance the performance of the system, both from a standpoint of precision control and system reliability. Rules are included that: • Cause the control to ignore very small or temporary temperature/ humidity deviations.
iCOM Control Training and Service Manual The integral (I) term is determined by two things: the difference between the return air temperature and control set point and the amount of time this difference has existed. This term is expressed in % cooling (heating) desired for each minute and degree above (below) the set point. It is adjustable from 0% - 100% per degree/minute.
iCOM Controls Training and Service Manual A suggested tuning procedure is as follows: 1. Initially adjust the integral and derivative settings to 0% / degree-min and 0% / degree / min.. 2. Starting with 20% / degree, adjust the proportional setting in small increments (10% steps) until the control sustains a constant hunting action (the temperature swings are approximately the same amplitude from one peak to the next).
iCOM Control Training and Service Manual Temperature Control Operations and Charts The temperature proportional control band value is divided into two parts: the temperature set point plus ½ of the temperature proportional band for cooling operation and the temperature set point minus ½ of the temperature proportional band for heating operation. A temperature dead band can also be programmed into the control to shift the cooling and/ or heating on/ off operations away from the temperature set point.
iCOM Controls Training and Service Manual The temperature controller deactivates the second stage of cooling (lag compressor) when the return air temperature decreases to 50% of the cooling proportional control band value. The first cooling stage (lead compressor) is deactivated when the return air temperature decreases to the temperature set point value or 0% of the cooling proportional control band value.
iCOM Control Training and Service Manual 2 Stage Compressorized Cooling – With Dead Band Temp Set Point + (1/2 Dead Band + 1/2 Proportional Band) Temp Set Point: 70°F Proportional Band: 8°F Dead Band: 2°F Cool 2 On Cool 1 On 70 71 72 73 74 75 DB Cool 2 Off Cool 1 Off Increasing Temperature Note: in the above example that the control band begins at the 70°F temperature set point and has a length of 5°F, which is ½ of the programmed temperature dead band value plus ½ of the programmed temperature
iCOM Controls Training and Service Manual and will be supplied with an electrical cylinder unloader valve. The electrical solenoid valve used to unload or reduce the cooling capacity of the compressor. The compressors will operate in an on/ off - loaded/ unloaded configuration method to cool the space. The hot gas bypass solenoid valve option is not available on 4 stage systems.
iCOM Control Training and Service Manual 4 Stage Compressorized Cooling – No Dead Band Temp Set Point + (1/2 Proportional Band) Temp Set Point: 70°F Proportional Band: 8°F Cool 4 On Cool 2 On Cool 3 On Cool 1 On 70 71 72 Cool 2 Off Cool 1 Off 73 74 75 Cool 4 Off Cool 3 Off Increasing Temperature Note: in the above example that the control band begins at the 70°F temperature set point and has a length of 4°F, which is ½ of the programmed temperature proportional band value.
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 of the programmed temperature proportional band value.
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 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 73°F or ½ of the dead band value plus 50% of the cooling control band.
iCOM Controls Training and Service Manual Optional Dual Compressor Digital Scroll Operation 100 1 compressor operation 70 50 PWM Switch 2nd compressor ON 2 compressor operation 35 20 Switch 1st compressor ON Off On C1 Start/ stop Off 0% 10 C2 On 20 25 35 70 In the chart above we are defining the Digital Compressor start and stop at the capacity need and how the compressors load and unload with the PWM from the controller and the unit setting for temperature control.
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 for two consecutive hours. When the microprocessor decides that the return glycol fluid temperature is cold enough the first cooling band is the modulating valve control method, and the second band, added to the first band, is for the compressors as in the normal 2-Stage or 4-Stage control method.
iCOM Controls Training and Service Manual Glycool at 50% Capacity – No Dead Band Temp Set Point + (1/2 Proportional Band + 1/2 Proportional Band) Temp Set Point: 70° Proportional Band: 8° 100% Open Valve Closed 70 71 Band 1 Glycool Valve 72 73 Cool 1 On 74 75 Cool 2 On 76 77 78 79 Band 2 Compressors Increasing Temperature Dual Source Cooling When supplied with the Dual Cooling option, the basic unit is supplied with an additional coil, piping, valve and a Glycol Fluid Sensor (AQ), which is
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 band is replaced by the compressor band.
iCOM Controls Training and Service Manual of the heating proportional band. The third electric heating stage activates when the return air temperature decreases to 100% of the heating proportional band. The temperature controller deactivates the third heating stage when the return air temperature increases to 66% of the heating proportional control band value. The second heating is deactivated when the return air temperature increases to 33% of the heating proportional control band value.
iCOM Control Training and Service Manual 3 Stage Electric Reheat – With Dead Band Temp Set Point - (1/2 Dead Band + 1/2 Proportional Band) Temp Set Point: 70°F Proportional Band: 8°F Reheat 1 On Dead Band: 2°F Reheat 2 On Reheat 3 On 65 66 67 68 69 70 DB Reheat 3 Off Reheat 2 Off Reheat 1 Off Decreasing Temperature Note: in the above example that the control band begins at the 70°F temperature set point and has a length of 5°F, which is ½ of the programmed temperature dead band value plus ½ of the
iCOM Controls Training and Service Manual Humidity Control Humidification and/ or Dehumidification Required, in Percent (%) The humidity control programs for the iCOM microprocessor is based on a calculated percent (%RH) requirement for humidification and/ or dehumidification. This percent (%RH) requirement is determined by the control type (algorithm) selected by the user.
iCOM Control Training and Service Manual Temperature Set Point 75°F Humidity Humidity Proportional Set Point Band = 6% 50% +3% 75°F 50% -3% Content Level Grains per LB. 59.2 52.5 The Absolute (Predictive) Humidity Control Flowchart shows what the program is doing and why.
iCOM Controls Training and Service Manual Relative Humidity Control Relative humidity control is based on the humidity content in the return air.
iCOM Control Training and Service Manual Infrared Humidification – No Dead Band Humidity Set Point - (1/2 Proportional Band) Humid Set Point: 50% Proportional Band: 8% Humidification On 45 46 47 48 49 50 Humidification Off Decreasing Humidity Note: in the above example that the control band begins at the 50% humidity set point and has a length of 4%, which is ½ of the programmed humidity proportional band value.
iCOM Controls Training and Service Manual Infrared Humidification – With Dead Band Humidity Set Point - (1/2 Dead Band + 1/2 Proportional Band) Humid Set Point: 50% Proportional Band: 8% Dead Band: 2% Humidification On 45 46 47 48 49 50 DB Humidification Off Increasing Temperature Note: in the above example that the control band begins at the 50% humidity set point and has a length of 5%, which is ½ of the programmed dead band value plus ½ of the programmed humidity proportional band value.
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 infrared lamps and water valve are activated at the same time to fill the pan to the proper water level and initiate humidification. During normal infrared humidification operation the water makeup valve is periodically closed (no pan fill) and opened (pan fill) based on a timing sequence to allow for the evaporation of water from the pan (see flow chart below).
iCOM Controls Training and Service Manual Dehumidification Operation The Relative Humidity control program is used to illustrate the dehumidification operation in the following examples. The basic dehumidification control band is established at the humidity set point with the length equal to ½ of the programmed humidity proportional band value. The humidity controller activates dehumidification operation when the return air humidity level increases to 100% of the humidity proportional band.
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%, which is ½ of the programmed humidity proportional band value. As the return air humidity increases, dehumidification operation is activated at 54%RH or 100% of the dehumidification control band. When the return air humidity starts to decrease, dehumidification operation is deactivated at 52%RH or 50% of the humidity proportional control band.
iCOM Controls Training and Service Manual The humidity controller activates the first stage of dehumidification operation when the return air humidity level increases to 50% of the humidity proportional band. The second stage of dehumidification is activated when the return air humidity level increases to 100% of the humidity proportional band.
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 dehumidification stage is deactivated. When the return air humidity level decreases to the humidity set point of 50% or 0% of the humidity proportional band the first dehumidification stage is deactivated.
iCOM Controls Training and Service Manual dehumidification process. The end user can choose to select from the following selections: Parameter Operation No No electric reheat allowed during compressorized dehumidification operation. Normal Electric reheat operates as normal. A decrease in return air temperature below set point will start reheats as described previously in his chapter. Delayed No low limit reached / low limit reset: heaters disabled.
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. Remote on/ off input (RSD – Remote Shutdown Device) 2. Display button Note: Switches 1 and 2 are in series; the unit will start only if both switches are in the on position.
iCOM Controls Training and Service Manual Fan Alarm / Fan settings The fan operation is controlled by two (2) digital devices: the Loss of Airflow differential pressure switch and the Main fan Overload motor protection. The time delay at the unit start is always 5 seconds shorter than the control delay. High Pressure Cutout The control uses high head lockout functionality. If one compressor trips or is locked out on high head, the other compressor turns on when the space temperature increases 1°F.
iCOM Control Training and Service Manual The Startup and Freeze Protection Program The sequence for the call for cooling with the program features is as follows: The need for cooling is defined by the control setting for the temperature setpoint, proportional band, and deadband (if used). At this point the Winter Start Kit (WSK) time delay is the wait period for the compressor to run without the indication of the low-pressure condition (also known as LP bypass).
iCOM Controls Training and Service Manual during the second time frame the cooling process locks off and will require a power off sequence. Next Maintenance Calculation Foreword The next maintenance calculation will help run the Liebert Environmental unit in an optimum way, to ensure minimum components stress resulting in increased reliability.
iCOM Control Training and Service Manual The control always takes the component with the most on/ off (cycling) as the reference component, which asking for the nearest maintenance (example: if the fan runs continuously, but the compressor switches on/off all the time, the next maintenance will be calculated from the compressor). Alarms or warnings (like clogged filter, high or low pressure, fans alarm etc.) will decrease the time to next maintenance immediately to 0.
iCOM Controls Training and Service Manual Starts per Day Optimum: the number of individual component starts that is considered as good or optimum. To be set by Service Engineer. Starts per Day Worst: the number of individual component starts that is considered as “hunting” or worst case. To be set by Service Engineer. Number of Alarms: counts the number of alarms occurring between service intervals. Actual Bonus: calculated from “number of starts” and “average working time” values.
iCOM Control Training and Service Manual Freecooling and Dual cooling will operate in the same manner as chilled water with the supervision of the Supply Limit, again showing different valve positions on the units If in a Freecooling or Dual Cooling unit if the limit of the coil operation is detected (no free cooling or no CW available) the valve will close off and unit will become DX operation in the system.
iCOM Controls Training and Service Manual The Basics for Cooling Unit Placement: Installation instructions are found in the product manuals for the Cooling units. Networking setup should include these additional factors for planning. • • • Locations of heat loads in conditioned space. Air distribution for cooling. Number of operating units versus standby. The Basics for Hardware: Multi-unit networking requires the following hardware: Minimum Network Switch Requirements: • IEEE 802.3, IEEE 802.
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 checked before the next board can be setup 6a. Large Displays and Control Boards must each be programmed with a different IP Address. Example: Display: 192.168.254.001 Example: Control Board: 192.168.254.010 6b. Each Display and Control Board in the iCOM network must have the same Gateway IP address. Example: Gateway IP: 192.168.254.75 6c.
iCOM Controls Training and Service Manual Setting Parameters Example: 2 Units with Small Display’s All Network parameters are viewed and programmed using the Service Menu function and by selecting the Network Setup Icon The following example references menu lines on the Network Setup screen: Line S802: Line S803: Line S804: Line S805: Line S806: Line S808: Line S810: Number units connected: xx (2) Teamwork: xx (No, 1, 2) Control Board IP Address: 192.168.254.
iCOM Control Training and Service Manual Example: 2 Units, One Large Display and One Small Display All Network parameters are viewed and programmed using the Service Menu function and by selecting the Network Setup Icon The following example references menu lines on the Network Setup screen: Line S802: Line S803: Line S804: Line S804: Line S805: Line S805: Line S806: Line S806: Line S808: Line S808: Line S810: Number units connected: xx (2) Teamwork: xx (No, 1, 2) Large Display Board IP Address: 192.168.
iCOM Controls Training and Service Manual Example: Large Wall Display and Five Units with Small Displays All Network parameters are viewed and programmed using the Service Menu function and by selecting the Network Setup Icon The following example references menu lines on the Network Setup screen: Line S802: Line S803: Line S804: Line S804: Line S804: Line S806: Line S806: Line S808: Line S808: Line S810: Number units connected: xx (01 - 32) Teamwork: xx (No, 1, 2) Large Display Board IP Address: 192.168.
iCOM Control Training and Service Manual Example: 4 Units in 2 Groups with 2 Large Displays All Network parameters are viewed and programmed using the Service Menu function and by selecting the Network Setup Icon The following example references menu lines on the Network Setup screen: Line S802: Line S803: Line S804: Line S804: Line S806: Line S806: Line S808: Line S808: Line S810: Number units connected: xx (01 - 32) Teamwork: xx (No, 1, 2) Large Display Board IP Address: 192.168.254.
iCOM Controls Training and Service Manual Teamwork Teamwork Modes Teamwork is the ability to group unit functionality, while connected in a network, to provide the ability to work together as a team and address control functions in three different teamwork modes: “No” Teamwork In this mode all units are working independently for control and functionality. No values or sensors are shared.
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 unit will define the temperature and humidity averages for the operational needs if there is a request for cooling, heating, dehumidification or humidification.
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 Mode. One or more units can be defined as lag (standby), the normal status of the lag (standby) unit(s) is off. The lag or standby function can be performed as a daily rotation (setting the time), weekly rotation (setting the day of the week and time) or as a monthly rotation.
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 display screen display which features a 128 x 64 dot matrix graphics. The display provides both descriptive text readouts and two (2) menu icons. The optional large screen display features a 320 x 240 dot matrix graphic display that shows user and service icons as well as descriptive text and graphics.
iCOM Control Training and Service Manual iCOM Display Components and Functions The large display is shown for reference. The keypad and LEDs are identical on all displays. Liquid Crystal display LED Status Indicators Top LED is red or flashing red - alarm, Bottom LED is amber (power on) or green (unit on) Keypad iCOM Keyboard Layout: The iCOM control screen displays text and icons for monitoring and programming your Liebert unit and/ or network of units.
iCOM Controls Training and Service Manual iCOM Keyboard Layout: Icon Key Name Function On/ Off Key Controls the operation state of the unit. Alarm Key Silences the audible alarm. Help Key Accesses the integrated help menus. ESCape Key Enter Key Returns to the previous display. Confirms all selections, icons and text. Increase Key (Up Arrow) Moves upward through the menu or increases the value of the selected parameter.
iCOM Control Training and Service Manual iCOM Display Symbols/ Icons fan compressor freecooling maintenance hot water el. heaters dehum hum horn The iCOM programming functions are separated into three (3) basic menus: • User Menu • Service Menu • Advanced Menu When the desired icon has been selected, press the enter key. If the selected menu item has submenus, they are now revealed. If there are no submenus, the function or setting or command level text is displayed.
iCOM Controls Training and Service Manual Programming Functions Status Display The unit display will show the unit operational mode(s), return air temperature/ humidity readings and if active present alarm conditions. The end user can select from two (2) display types, graphical or simple.
iCOM Control Training and Service Manual Menu Screens ICON Symbols Menu Parameters Names Level 1: User Level 2: Service Level 3: Advanced Readable w/o password PW required to program Readable w/o password PW required to program PW required to read or program 1 Setpoints Setpoints Factory Settings 2 Spare Parts List Unit Diary 3 Events Log/ Status Report Standby Settings/ Lead-Lag 4 Graphics Maintenance/ Wellness Settings 5 View Network Diagnostics/ Service Mode 6 Set Alarms Set Ala
iCOM Controls Training and Service Manual User Menu Icons and Descriptions: Icon Name Descriptions Available Display °C/ °F % RH SET Set Points To view and change temperature and humidity set points Small and Large Spare Parts List Displays the spare parts list of the unit Large EVENT LOG Event Log Contains a log of the last 400 events Small and Large Graphic Data Record Displays the temperature and humidity graphs Small and Large View Network Shows the status of all connected units Lar
iCOM Control Training and Service Manual Service Menu Icons and Descriptions: Icon Name Descriptions Available Display °C/ °F % RH SET Set Points To view and change temperature and humidity set points Small and Large Unit Diary Is a notepad containing notes from the service person or customer Large Programs lead/ lag setup when multiple units are connected together Small and Large Maintenance/ Wellness Settings Allows programming of the maintenance interval reminder, maintenance messages, num
iCOM Controls Training and Service Manual Advanced Menu Icons and Descriptions: Icon Name Factory Settings Change Passwords Descriptions Available Display Factory configuration files. Do Not Change Settings Consult the Factory First Small and Large Allows the user to change the various passwords Small and Large Menu Parameters All of the various parameters and program ranges are shown in tables located in this chapter.
iCOM Control Training and Service Manual User Menu: Set Point Parameters U100 series Menu Line Parameter Default Range - - U101 Password U102 Temperature Setpoint 73ºF 41 - 104ºF U103 Humidity Setpoint 50% 1 – 80% U104 Humidity Control Type Yes Yes or No U105 Supply Limit Disabled Disabled or Enabled U106 Supply Limit Temp Value 41°F 41 - 77°F U107 U108 U109 U110 U111 User Menu: Spare Parts List, Large Display Only Parameter Unit spare parts list User Menu: Event Log Parameter St
iCOM Controls Training and Service Manual User Menu: Graphics Parameters Parameter System Temperature Time Scale Default Range 24 Hours 8, 32 min or 1, 12, 24 hours or 2, 4, 8, 16 days 9ºF ±36ºF 24 Hours 8, 32 min or 1, 12, 24 hours or 2, 4, 8, 16 days 10% ±20% 24 Hours 8, 32 min or 1, 12, 24 hours or 2, 4, 8, 16 days 9ºF ±36ºF 24 Hours 8, 32 min or 1, 12, 24 hours or 2, 4, 8, 16 days 10% ±20% System Temperature Graph Height System Humidity Time Scale System Humidity Graph Height Unit Tem
iCOM Control Training and Service Manual User Menu: Set Alarm Parameters U200 series Menu Line Parameter Default Range - - Enabled Enabled or Disabled U201 Password U202 Return Sensor Alarms U203 High Return Temperature 80ºF 33 - 210ºF U204 Low Return Temperature 60ºF 33 - 210ºF U205 High Return Humidity 60% 1 – 99% U206 Low Return Humidity 40% 1 – 99% U207 Sensor A Alarms Disabled Disabled or Enabled U208 High Temperature Sensor A 90ºF 33 - 210ºF U209 Low Temperature Se
iCOM Controls Training and Service Manual User Menu: Sensor Data U300 series: Page 1 of 2 Menu Line Parameter Time/ Value U313 Daily High Temperture U314 Daily Low Temperature U315 Daily High Humidity U316 Daily Low Humidity User Menu: Active Alarms Parameters Parameter User to view all active alarms of all units connected together (only Large Display) User Menu: Display Setup Parameters U400 series Menu Line Parameter Default Range English English . . .
iCOM Control Training and Service Manual User Menu: Total Run Hours Parameters U500 series Menu Line Parameter Range (Hours) U501 - Actual U502 Fan motor(s) 0 - 32000 U503 Compressor 1 0 - 32000 U504 Compressor 2 0 - 32000 U505 Chilled Water/ Free Cool 0 - 32000 U506 Hot Gas / Hot Water 0 - 32000 U507 Electrical Heater 1 0 - 32000 U508 Electrical Heater 2 0 - 32000 U509 Electrical Heater 3 0 - 32000 U510 Humidifier 0 - 32000 U511 Dehumidification 0 - 32000 User Menu: Slee
iCOM Controls Training and Service Manual User Menu: Service Contacts U700 series Menu Line Parameter Range U703 Address Line 1 Text String U704 Address Line 2 Text String U705 Address Line 3 Text String U706 Address Line 4 Text String U701 U702 66
iCOM Control Training and Service Manual Service Menu Parameters The Service menu display allows the user to customize the various unit settings for site specific operation. The factory default password to access the service menu items for programming is “501”.
iCOM Controls Training and Service Manual Service Menu: Set Point Parameters S100 series: Page 2 of 2 Menu Line Parameter Default Range - - 10% 1 – 20% S112 Password S113 Humidity Proportional Band S114 Humidity Integration Time 0 0 – 5 minutes S115 Humidity Deadband 0 0 – 50% S116 DT Between Room / FC Type Disable Disable, Contact, Value S117 DT Between Room Air / FC Fluid 8ºF 0 - 36ºF S118 Minimum CW Temp Disable Enable / Disable S119 Minimum CW Temp Value 45ºF 32 - 68ºF
iCOM Control Training and Service Manual Service Menu: Standby Setting / Lead-lag Parameters S500 series Menu Line Parameter Default Range S501 Password - - S502 Number of Standby Units 0 0 – 15 S503 Rotation Frequency No No, Daily, Every M, T, W, Th, F, S, Su S504 Rotate at (hour) 0 0 – 23 S505 Rotate at (minute) 0 0 – 59 S506 Rotate by 1 1–8 S507 Perform one rotation - No or Yes S508 Cascade units No No, Yes, Cool, Temp S509 Start All Standby Units by HT No No or Ye
iCOM Controls Training and Service Manual Service Menu: Fan Settings Maintenance / Wellness Parameters: Page 2 of 8 Menu Line Parameter Default Range S012 Password - - S013 Number of Starts - 0 – 32000 S014 Run Hours - 0 – 32000 S015 Average Working Time - 0 – 999 minutes S016 Starts per Day Optimum 1 1 – 240 S017 Starts per Day Worst 24 1 – 240 S018 Number of Alarms - 0 – 32000 S019 Actual Bonus - 0 - 12 Service Menu: Compressor 1 Settings Maintenance / Wellness Paramete
iCOM Control Training and Service Manual Service Menu: Compressor 2 Settings Maintenance / Wellness Parameters: Page 4 of 8 Menu Line Parameter Default Range S034 Password - - S035 Number of Starts - 0 – 32000 S036 Run Hours - 0 – 32000 S037 Average Working Time - 0 – 999 minutes S038 Starts per Day Optimum 12 1 – 240 S039 Starts per Day Worst 240 1 – 240 S040 Number of HP Alarms - 0 – 32000 S041 Number of LP Alarms - 0 – 32000 S042 Number of OL Alarms - 0 – 32000 S04
iCOM Controls Training and Service Manual Service Menu: Electric Heater 2 Settings Maintenance / Wellness Parameters: Page 6 of 8 Menu Line Parameter Default Range S056 Password - - S057 Number of Starts - 0 – 32000 S058 Run Hours - 0 – 32000 S059 Average Run Time - 0 – 999 minutes S060 Starts per Day Optimum 24 1 – 240 S061 Starts per Day Worst 240 1 – 240 S062 Number of Alarms - 0 – 32000 S063 Actual Bonus - 0 - 12 Service Menu: Electric Heater 3 Settings Maintenance /
iCOM Control Training and Service Manual Service Menu: Humidifier Settings Maintenance / Wellness Parameters: Page 8 of 8 Menu Line Parameter Default Range S078 Password - - S079 Number of Starts - 0 – 32000 S080 Run Hours - 0 – 32000 S081 Average Run Time - 0 – 999 minutes S082 Starts per Day Optimum 24 1 – 240 S083 Starts per Day Worst 240 1 – 240 S084 Number of Alarms - 0 – 32000 S085 Actual Bonus - 0 - 12 Service Menu: Diagnostics / Service Mode S300 series: Page 1 of
iCOM Controls Training and Service Manual Service Menu: Diagnostics / Service Mode: Page 2 of 5 Menu Line Parameter Range S312 Password - S313 HP 1 Alarm Counter 0 S314 HP 2 Alarm Counter 0 S315 HT 1 Alarm Counter 0 S316 HT 2 Alarm Counter 0 S317 S318 S319 S320 Electric Heat 1(or HG/ HW) Off or On S321 Heat 2 (or E.Heat 1) Off or On S322 Heat 3 (or E.
iCOM Control Training and Service Manual Service Menu: Diagnostics / Service Mode: Page 4 of 5 Menu Line Parameter Range S334 Password - S335 Status Remote Shutdown S336 Status Airflow Loss OK or Active S337 Status Motor Overload OK or Active S338 Status Filter OK or Active S339 Status Customer Input 1 OK or Active S340 Status Customer Input 2 OK or Active S341 Status Customer Input 3 OK or Active S342 Status Customer Input 4 OK or Active Off or On Service Menu: Diagnostics / S
iCOM Controls Training and Service Manual Service Menu: Set Alarm Parameters S200 series: Page 1 of 6 Menu Line Parameter Default Range - - Enabled Disabled or Enabled S201 Password S202 Return Sensor Alarms S203 High Return Temperature 80ºF 34 - 210ºF S204 Low Return Temperature 65ºF 34 - 210ºF S205 High Return Humidity 60% 1 – 99% S206 Low Return Humidity 40% 1 – 99% S207 Sensor A Alarms Disabled Disabled or Enabled S208 High Temperature Sensor A 90ºF 34 - 210ºF S209 L
iCOM Control Training and Service Manual Service Menu: Set Alarm Parameters: Page 3 of 6 Menu Line S223 Parameter Password S224 DELAY EN-DIS TYPE S225 Main Fan Overload 10 Sec En Alarm S226 Loss of Airflow 10 Sec En Alarm S227 Clogged Filters 60 Sec En Warning S228 High Room Temperature 10 Sec En Warning S229 Low Room Temperature 10 Sec En Warning S230 High Room Humidity 10 Sec En Warning S231 Low Room Humidity 10 Sec En Warning S232 High Temp Sensor A 10 Sec En
iCOM Controls Training and Service Manual Service Menu: Set Alarm Parameters: Page 5 of 6 Menu Line S249 Parameter Password S250 DELAY EN-DIS TYPE - En Warning S251 Working Hours Exceeded S252 Smoke Detected 5 Sec En Alarm S253 Water Under Floor 5 Sec En Alarm S254 Cond Pump-High Water 5 Sec En Alarm S255 Loss of Flow 5 Sec En Alarm S256 Standby Glycol Pump On 5 Sec En Alarm S257 Standby Unit On 5 Sec En Alarm S258 Humidifier Problem 5 Sec En Alarm S259 No Conn
iCOM Control Training and Service Manual Service Menu: Sensor Calibration/ Setup Parameters S600 series: Page 1 of 3 Menu Line Parameter S601 Password S602 Return temperature S603 Calibrated return temperature S604 Return humidity S605 Calibrated return humidity S606 Digital Scroll 1 NTC S607 Calibrated digital scroll 1 NTC S608 Digital Scroll 2 NTC S609 Calibrated digital scroll 2 NTC Range ±17ºF 32 - 122ºF ±9.
iCOM Controls Training and Service Manual Service Menu: Sensor Calibration/ Setup Parameters: Page 3 of 3 Menu Line Parameter S623 Password S624 Glycol sensor PTC or NTC S625 Default Range - NTC NTC or PTC Glycol sensor - ±17ºF S626 Calibrated glycol sensor - 4 – 113ºF S627 Supply sensor PTC or NTC NTC NTC or PTC S628 Supply sensor - ±17ºF S629 Calibrated supply sensor - 32 - 122ºF S630 Temperature sensor C - ±17ºF S631 Calibrated temperature sensor C - 32 - 122ºF S632
iCOM Control Training and Service Manual Service Menu: System / Network Setup Parameters Series S800: Page 2 of 2, System View Menu Line Function Default Range S812 Password - - S813 IP Address - IP Address S814 Netmask - Netmask Range S815 Gateway - Gateway Range S816 MAC - MAC Range S817 U2U Protocol - - S818 U2U Address - 33 - 64 S819 - - S820 - S821 Bootloader Variables Status - Changed, Updating S822 Bootloader Variables Control - No, Save + Reboot Service M
iCOM Controls Training and Service Manual Service Menu: System / Network Setup Parameters Series S800: Page 2 of 2, Unit View Menu Line Function Default Range S834 Password - S835 Monitoring Protocol - - S836 IP Address - IP Range S837 Netmask - Netmask Range S838 Gateway - Gateway Range S839 MAC - MAC Range S840 U2U Protocol - 33 - 64 S841 U2U Address - - S842 - S843 Bootloader Variables Status - Changed, Updating S844 Bootloader Variables Control - No, Save + Re
iCOM Control Training and Service Manual Service Menu: Option Setup Parameters S400 series:: Page 2 of 2 Menu Line Function Default Range - - Yes Yes or No 150% 110 – 500% S412 Password S413 Humidification Enabled S414 Infrared Flush Rate S415 Dehumidification Enabled Yes No or Yes S416 Electric Reheat Operation No No, Normal, Delayed S417 Single Unit Auto Restart 5 Seconds 0 – 999 seconds S418 On – Off Enabled Yes Yes or No S420 CW Flush No No, 1 – 99 Hours S421 Freecoo
iCOM Controls Training and Service Manual Advanced Menu Parameters The Advanced menu displays allows the service technician to set the unit configuration code and to customize the various unit settings for site-specific operation. The factory default password to access the advanced menu items for programming is “221”.
iCOM Control Training and Service Manual Advanced Menu: Factory Settings Parameters A100 series: Page 2 of 6 Menu Code Function Default Range - - R22 R22, R407C A101 Password A102 Refrigerant Type A103 Main Fan Overload Shut down Shut down, Disable A104 Loss of Airflow Shut down Shut down, Disable A105 Number of Compressors 2 0, 1, 2 A106 Compressor Delay Time 0 0 - 120 Sec A107 Compressor Minimum On Time 3 Min 0 - 5 Min A108 Compressor Minimum Off Time 3 Min 0 - 5 Min A1
iCOM Controls Training and Service Manual Advanced Menu: Factory Settings Parameters: Page 4 of 6 Menu Code Parameter Default Range - - A123 Password A124 LP1 Sensor 10% 0 - 100% A125 LP1 Signal 150 psiA -87.0 to +725 psiA A126 Actual LP1 Signal - 0 - 100% A127 LP2 Sensor 10% 0 - 100% A128 LP2 Signal 150 psiA -87.0 to +725 psiA A129 Actual LP2 Signal - 0 - 100% A130 Pumpdown Cutout 35 psiA 0.0 - 145 psiA A131 Pumpdown Recycle 80 psiA 0.
iCOM Control Training and Service Manual Advanced Menu: Factory Settings Parameters: Page 6 of 6 Menu Code Parameter Default Range - - A145 Password A146 Humidifier Model No No, external, IFS, IFL A147 Humidity in Last xx Hours 15hr 1 - 120 hours A148 Prefill Time IFS 30 IFL 60 1 - 120 seconds A149 Fill Time IFS 30 IFL 50 1 - 120 seconds A150 Humidifier On Time IFS 8 IFL 10 1 - 60 minutes A151 Dehum with Compressor 2 1, 2, both A152 Analog Output 1 Not used * See note 3 A
iCOM Controls Training and Service Manual Advanced Menu: Factory Access Parameters A200 series: Menu Code Parameter Default Range A201 Password Level 1 (User) 149 4 digits A202 Password Level 2 (Service) 501 4 digits A203 Password Level 3 (Advanced) 221 4 digits 88
iCOM Control Training and Service Manual Events Notifications Parameters ID Type Description (Large Display) Description (Small Display) 000 Alarm GENERAL ALARM GENERAL ALARM 001 Alarm COMP. 1 HIGH PRESSURE COMP. 1 HIGH PRESSURE 002 Alarm COMP. 1 LOW PRESSURE COMP. 1 LOW PRESSURE 003 Warning HIGH CHILLED WATER HIGH CHILLED WATER 004 Warning LOW CHILLED WATER FLOW LOW WATER FLOW 005 Warning EL. HEAT. OVERHEATED EL. HEAT.
iCOM Controls Training and Service Manual Events Notifications Parameters (continued) ID Type Description (Large Display) Description (Small Display) 037 Message UNIT OFF UNIT OFF 038 Message SLEEP MODE SLEEP MODE 039 Message STANDBY MODE STANDBY MODE 040 Message POWER ON UNIT LOGIN POWER ON UNIT LOGIN 041 Message POWER OFF POWER OFF 042 Warning Unit 1 disconnected Unit 1 disconnected 043 Warning Unit 2 disconnected Unit 2 disconnected 044 Warning Unit 3 disconnected Unit
iCOM Control Training and Service Manual Events Notifications Parameters (continued) ID Type Description (Large Display) Description (Small Display) 070 Warning NO CONNECTION TO UNIT 1 NO CONN.
iCOM Controls Training and Service Manual Events Notifications Parameters (continued) ID Type Description (Large Display) Description (Small Display) 111 Warning EL.HEAT 1 HOURS EXCEEDED EL.HEAT 1 HOURS EXC. 112 Warning EL.HEAT 2 HOURS EXCEEDED EL.HEAT 2 HOURS EXC. 113 Warning EL.HEAT 3 HOURS EXCEEDED EL.HEAT 3 HOURS EXC.
iCOM Control Training and Service Manual 007 LOSS OF AIRFLOW 008 CLOGGED FILTERS 018 HIGH ROOM TEMP 019 LOW ROOM TEMP 020 HIGH ROOM HUM 021 LOW ROOM HUM 022 HIGH TEMP SENSOR A 023 LOW TEMP SENSOR A 024 HIGH HUM SENSOR A 025 LOW HUM SENSOR A 026 UNIT HRS EXCEEDED 027 COMP 1 HRS EXCEEDED not enough airflow Alarm through the unit. this event can be set to switch off the unit or to disable hum and electric heat. air filters are dirty Warning actual return air temperature (value from std.
iCOM Controls Training and Service Manual 028 HUM HRS EXCEEDED 029 SUPPLY SENSOR FAILURE 031 ROOM SENSOR FAILURE 032 SENSOR A FAILURE 034 NETWORK FAILURE actual working hours of Warning the fan are higher than the threshold set. Warning sensor faulty or not present, but needed from control (supply limit control enabled). no valid data from the Alarm std. sensor no valid data from sensor A the unit showing this event has no connection to the unit #1.
iCOM Control Training and Service Manual 048 Unit 7 disconnected 049 Unit 8 disconnected 050 Unit 9 disconnected 051 Unit 10 disconnected 052 Unit 11 disconnected 053 Unit 12 disconnected 054 Unit 13 disconnected 055 Unit 14 disconnected 056 Unit 15 disconnected 057 Unit 16 disconnected 058 COMP 2 HIGH PRESSURE " Warning no no - " Warning no no - " Warning no no - " Warning no no - " Warning no no - " Warning no no - " Warning no no - " Warning no no - " Warning no
iCOM Controls Training and Service Manual 072 COMP 2 OVERLOAD Compressor 2 stopped because of overload Alarm no 079 UNIT DISABLED Message this message appears after a critical alarm (airflow, main fan overload) and indicates that the unit is operating w/o humidifier or electrical heaters. - yes (broken co will remain off) - this message appears Message after a critical alarm (airflow, main fan overload) and indicates that the unit is shut down due to the alarm.
iCOM Control Training and Service Manual 098 DIG SCROLL2 Digital Scroll compressor Alarm HIGH TEMP #1 shut off because of high temperature (sensor is inside the compressor). Message 103 SHORT CYCLE compressors are requested from control to start too often - control is unstable. 104 SMOKE customer input is active. Alarm DETECTED no yes yes (broken co will remain off) - no - no yes yes (if not disabled externally) customer input is active.
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. the unit code must be set in order to let the board know in which type of unit it is mounted, which component it shall drive and how to map the inputs and outputs.
iCOM Control Training and Service Manual MISMATCH 130 UNIT CODE 16 " MISMATCH 131 UNIT CODE 17 " MISMATCH 132 UNIT CODE 18 " MISMATCH 99 Alarm yes yes no Alarm yes yes no Alarm yes yes no
iCOM Controls Training and Service Manual Chapter 3 iCOM Control Board Connections Introduction This section describes the basic connection points on the Liebert Deluxe System 3 units. Each sub-section describes the standard electrical connections supplied with the iCOM controls.
iCOM Control Training and Service Manual LCD Display Board The Advanced and Advanced with Graphics LCD display board is mounted to the system unit accent panel. The LCD display board connection to the system control board is identified as ribbon connector P26.
iCOM Controls Training and Service Manual Control Board DIP Switches and Plug Connectors This section deals with the 20 plug connections and the terminal block located on the unit control board. The tables in this section show all of the pin connections and the reference points for signal flow through these connections.
iCOM Control Training and Service Manual iCOM Control Board DIP Switch #2 Settings Connector Input/ Output Type Setting P7-1 (+)/ P7-2 (-) NTC Thermistor * Software (ASW1 = 1) PTC Thermistor Software (ASW1 = 0) Analog Voltage: 0 to +10V * Sw2-1: Off/ Sw2-2: Off Analog Voltage: 0 to +5V Sw2-1: On/ Sw2-2: Off Analog Current: 4 to 20mA Sw2-1: On/ Sw2-2: On P11-3 (+)/ P11-4 (-) +5V Output None P11-5 (+)/ P11-6 (-) Analog Voltage: 0 to +10V * Sw2-3: Off/ Sw2-4: Off Analog Voltage: 0 to +5V S
iCOM Controls Training and Service Manual iCOM Control Board Jumper Settings Jumper Type Setting P19 Watchdog * On: Shunt on Pins 1 & 2 Off: No Shunt P78 CAN Bus Terminator On: Shunt on Pins 2 & 3 * Off: Shunt on Pins 1 & 2 P83 Bootloader Enabled: Shunt on Pins 1 & 2 * Disabled: No Shunt * Default Setting Large Display DIP Switch #3 Settings Position Type Setting 1 CAN Address Off 2 CAN Address Off 3 CAN Address Off 4 CAN Address Off 5 CAN Address Off 6 CAN Address Off 7 CA
iCOM Control Training and Service Manual Large Display Jumper Settings Jumper Type Setting P3 Watchdog * Shunt on Pins 1 & 2 P4 Manual Contrast (Rev. 1) * Shunt on Pins 2 & 3 P8 open * open P13 open * open P78 CAN Termination * Shunt on Pins 2 & 3 P82 Watchdog (Rev.
iCOM Controls Training and Service Manual Small Display Jumper Settings Jumper Type Setting P4 Manual Contrast (Rev. 2 only) * Shunt on Pins 2 & 3 P78 CAN Termination * Shunt on Pins 2 & 3 P80 BDM Header * open P82 Watchdog (Rev.
iCOM Control Training and Service Manual DS Systems: P3: Not Used P4: 24 VAC Power P4-1: Fuse 1 (24 VAC) P4-2: Fuse 2 (24 VAC) P4-3: P4-4: Fuse 3 (24 VAC) Fuse 4 (24 VAC) P7: Fluid Sensor P7-1: Aquastat Sensor P7-2: Aquastat Sensor P8: 24 VAC Alarm Inputs P8-1: 24 VAC (RAD1/ TS 50) P8-2: 24 VAC (RAD2/ TS 51) P8-3: 24 VAC (RAD3/ TS 55) P8-4: 24 VAC (RAD4/ TS 56) P8-5: P8-6: P8-7: P8-8: 24 VAC (HWA) 24 VAC Out (TS 24) 24 VAC Out (HWA) no connection P12-5: P12-6: P12-7: P12-8: T+ Analog 3 (TS 45) T- An
iCOM Controls Training and Service Manual P22: Glycool Valve (Std.
iCOM Control Training and Service Manual P38: Smoke Detector P38-1: 24 VAC Out SDC) P38-2: E4 (SDC) P38-3: P38-4: P39: Firestat & Remote Shutdown P39-1: 24 VAC Out (HTS) P39-2: 24 VAC Return (HTS) P40: Basic Unit Connections P40-1: no connections P40-2: no connections P40-3: no connections P40-4: 24 VAC Out (Opt.
iCOM Controls Training and Service Manual P67: Temperature/ Humidity Sensors P67-1: P16-3: P67-6: P16-4: P65: Site Monitoring Signals – No Intelleslot Supplied P65-1: +5 VDC to TS 78 P65-2: -5 VDC to TS 77 P65: Optional Intelleslot Power Suplly P65-1: P65-3: P65-2: P65-4: P64: Unit Large Display (Digital Signals) P66: Unit Small Display (Digital Signals) TB1: 24 VAC TB1-1: 24 VAC (T2) TB1-2: 24 VAC (T3) TB1-3: 24 VAC (T4) TB1-4: 24 VAC (T5) TB1-5: TB1-6: TB1-7: TB1-8: E1 (G2) E2 (G3) E3 (G4) E4 (G5) E1/
iCOM Control Training and Service Manual Fuse Board Layout: All Units This section deals with the seven (7) plug connectors on the fuse board. The fuse board is supplied on all systems with iCOM and is located in the low voltage section of the unit. The tables in this section show all of the connections and reference points for signal flow through these connectors.
iCOM Controls Training and Service Manual Temperature/ Humidity Board: All Units This section deals with the single plug connection located on the system temperature and humidity board. The temperature/ humidity board is supplied on all systems with iCOM controls. The cable is plugged into Plug P67 on the unit microprocessor board and transmits information using “CAN” – Controlled Area Network communication. Troubleshooting is accomplished by observing an LED located on the board.
iCOM Control Training and Service Manual NOTES 113
iCOM Controls Training and Service Manual Chapter 4 General Troubleshooting Data * Basic Operation of the Opto and Triac * Troubleshooting the Opto-Isolator and Triac * Control Input Check (Sensors) * Frequency Conversion Chart (Temperature) * Frequency Conversion Chart (Humidity) * Troubleshooting Signals and Checklist * Moisture Content Charts This section covers only very basic electronics.
iCOM Control Training and Service Manual The temperature sensor senses a rise in temperature. The rise is transmitted to the Central Processing Unit (CPU). The CPU looks into its memory for information and instructions on what to do with the rise in temperature. The CPU then makes the decision to call for cooling. Isolation We use the opto-isolator and the triac to isolate areas of control and voltage. There are three areas of control and two voltage levels.
iCOM Controls Training and Service Manual BASIC OPERATION OF THE TRIAC To better understand the operation of the triac, we need to look at the movement of electrons in a special type of material used in electronics. Here we have a semiconductor material with what is called a depletion region. The depletion region restricts the flow of electrons to a point.
iCOM Control Training and Service Manual The triacs that Liebert uses are standard in the industry and are rated at a 2-amp capacity. You can check these devices for proper operation while they are connected in the circuit. If the load is removed from the device, you can get a false reading from the meter. This is because the voltage potential is present and is detected by the meter. When the load is applied to the device, the potential is not detected by the meter.
iCOM Controls Training and Service Manual Basic Operation of the Opto-Isolator The purpose of the opto-isolator is to provide isolation of two voltage sources. This allows a DC voltage source to activate an AC voltage load device or allows an AC voltage source to provide a DC signal. We are working with two types of circuits, an input and an output. Therefore, we require two types of opto-isolators (referred to as optos).
iCOM Control Training and Service Manual Troubleshooting the Output Opto-Isolator The opto-isolator IC chips used in these circuits are the H11J (output) devices. The drawing shows the pin location for component checks on the output opto. The indented circle in the upper left hand corner of this chip indicates the location of Pin 1. Note that the number sequence is in a "U" format: downward 1, 2 and 3 on the left and upward 4, 5 and 6 on the right.
iCOM Controls Training and Service Manual Troubleshooting the Input Opto-Isolator The opto-isolator IC chips used in these circuits are the H11AA (input) devices. The pin location for component checks on the input opto. The indented circle in the upper left hand corner of this chip indicates the location of Pin 1. Note that the number sequence is in a "U" format: down 1 and 2 on the left and up 3 and 4 on the right.
iCOM Control Training and Service Manual Microprocessor Control Board: Typical Location othe Opto-Isolators and Triacs Input Opto-Islators Output Opto-Isolators and Triacs Microprocessor Control Board Alarm Input Opto-Isolator Legend: Opto Purpose Opto Purpose U15 Air Safety Switch U23 Power On U16 Custom Alarm 1 U24 Compressor 2 Overload U17 Custom Alarm 2 U25 Low Pressure Switch 2 U18 High Water Alarm U26 High Head Pressure 2 U19 Custom Alarm 3 U27 Compressor 1 Overload U20 Hu
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 level is 5 VDC.
iCOM Control Training and Service Manual iCOM Diagnostics / Service Mode Program The iCOM controller has a valuable tool built into software under the SERVICE MENU. This program allows the user to evacuate and charge the refrigerant circuit at installation, turn on/off all loads (outputs) for testing, and allows user to check all inputs. The procedure is as follows: 1- From the main screen select the SERVICE MENU parameters. 2- In the SERVICE MENU screen select the SERVICE icon.
iCOM Controls Training and Service Manual Basic Troubleshooting Steps: Example: Unit load is not energizing. Programming: 1. Read and record all program parameter values. 2. Read and record all DIP (control) switch positions on all boards. Check all jumpers on each board, check for the CAN healthy light on the boards and check programming per the read and record sheet in appropriate manuals to verify selected options. 3.
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 not activated the next step is to check the triac and hard wiring to the load device. Verify that 24 VAC is being applied to Pin 1 of the triac, place the VOM leads between Pin 1 and the proper transformer ground connection. If 24 VAC is not present at Pin 1 of the triac backtrack the circuit to the proper secondary hot of the control transformer.
iCOM Controls Training and Service Manual Moisture Content Charts The following charts show moisture content of various levels of relative humidity for given temperatures. Follow the procedures below to use the charts: STEP 1: Locate the chart for the temperature with which you are working. STEP 2: Locate the line with the relative humidity with which you are working. STEP 3: Read the moisture content of the relative humidity in either grains per cubic foot or grains per pound of air.
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 3.9744 55.12493 37 4.0848 56.65618 38 4.1952 58.18743 39 4.3056 59.71868 40 4.416 61.24992 41 4.5264 62.78116 42 4.6368 64.31241 43 4.7472 65.84367 44 4.8576 67.37492 45 4.968 68.90616 46 5.0784 70.43741 47 5.1888 71.96865 48 5.2992 73.4999 49 5.4096 75.03115 50 5.52 76.5624 51 5.6304 78.09365 52 5.7408 79.
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 36 3.8556 53.47717 37 3.9627 54.96265 38 4.0698 56.44813 39 4.1769 57.9336 40 4.284 59.41908 41 4.3911 60.90456 42 4.4982 62.39004 43 4.6053 63.87551 44 4.7124 65.36099 45 4.8195 66.84647 46 4.9266 68.33194 47 5.0337 69.81742 48 5.1408 71.3029 49 5.2479 72.78838 50 5.355 74.27385 51 5.4621 75.75933 52 5.
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 50.38971 36 3.7368 51.82942 37 3.8406 53.26913 38 3.9444 54.70883 39 4.0482 56.14854 40 4.152 57.58824 41 4.2558 59.02795 42 4.3596 60.46765 43 4.4634 61.90736 44 4.5672 63.34707 45 4.671 64.78677 46 4.774801 66.22648 47 4.8786 67.66618 48 4.9824 69.10589 49 5.0862 70.5456 50 5.19 71.9853 51 5.2938 73.425 52 5.3976 74.
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 48.83628 36 3.6216 50.2316 37 3.7222 51.62691 38 3.8228 53.02224 39 3.9234 54.41756 40 4.024 55.81288 41 4.124601 57.20821 42 4.2252 58.60353 43 4.3258 59.99885 44 4.4264 61.39417 45 4.527 62.78949 46 4.6276 64.18481 47 4.7282 65.58013 48 4.8288 66.97546 49 4.9294 68.37078 50 5.03 69.7661 51 5.1306 71.16143 52 5.
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 47.32652 36 3.50964 48.67871 37 3.60713 50.03089 38 3.70462 51.38307 39 3.80211 52.73527 40 3.8996 54.08745 41 3.99709 55.43964 42 4.09458 56.79182 43 4.19207 58.14401 44 4.28956 59.4962 45 4.38705 60.84838 46 4.48454 62.20057 47 4.58203 63.55276 48 4.67952 64.90494 49 4.77701 66.25713 50 4.8745 67.60931 51 4.97199 68.
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 45.86532 36 3.40128 47.17575 37 3.49576 48.48619 38 3.59024 49.79663 39 3.68472 51.10707 40 3.7792 52.4175 41 3.87368 53.72794 42 3.96816 55.03838 43 4.06264 56.34882 44 4.15712 57.65926 45 4.251601 58.9697 46 4.34608 60.28013 47 4.44056 61.59057 48 4.53504 62.901 49 4.62952 64.21145 50 4.724 65.52188 51 4.81848 66.
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 44.43324 36 3.29508 45.70276 37 3.38661 46.97228 38 3.47814 48.2418 39 3.56967 49.51132 40 3.6612 50.78085 41 3.75273 52.05037 42 3.84426 53.31989 43 3.93579 54.58941 44 4.02732 55.85893 45 4.11885 57.12845 46 4.21038 58.39797 47 4.30191 59.66749 48 4.39344 60.93701 49 4.48497 62.20654 50 4.5765 63.47605 51 4.66803 64.
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 43.04485 36 3.19212 44.2747 37 3.28079 45.50456 38 3.36946 46.73441 39 3.45813 47.96426 40 3.5468 49.19412 41 3.63547 50.42397 42 3.72414 51.65382 43 3.81281 52.88367 44 3.90148 54.11352 45 3.99015 55.34338 46 4.07882 56.57323 47 4.16749 57.80309 48 4.25616 59.03294 49 4.34483 60.26279 50 4.4335 61.49264 51 4.52217 62.
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 41.59336 36 3.08448 42.78174 37 3.17016 43.97012 38 3.25584 45.1585 39 3.34152 46.34688 40 3.4272 47.53527 41 3.51288 48.72365 42 3.59856 49.91203 43 3.68424 51.10041 44 3.76992 52.28879 45 3.8556 53.47717 46 3.94128 54.66555 47 4.02696 55.85393 48 4.11264 57.04232 49 4.19832 58.2307 50 4.284 59.41908 51 4.36968 60.
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 40.38459 36 2.99484 41.53843 37 3.07803 42.69228 38 3.16122 43.84613 39 3.24441 44.99997 40 3.3276 46.15381 41 3.41079 47.30766 42 3.49398 48.46151 43 3.57717 49.61535 44 3.66036 50.7692 45 3.74355 51.92304 46 3.82674 53.07688 47 3.90993 54.23073 48 3.99312 55.38458 49 4.07631 56.53842 50 4.1595 57.69227 51 4.24269 58.
iCOM Control Training and Service Manual Moisture Content at Temperature = 70°F (21.1ºC) RH Grains Per Cu Ft 35 2.81925 39.103 36 2.8998 40.22023 37 2.98035 41.33746 38 3.0609 42.45469 39 3.14145 43.57192 40 3.222 44.68914 41 3.30255 45.80637 42 3.3831 46.9236 43 3.46365 48.04083 44 3.5442 49.15806 45 3.62475 50.27529 46 3.7053 51.39252 47 3.78585 52.50975 48 3.8664 53.62697 49 3.94695 54.7442 50 4.0275 55.86143 51 4.10805 56.97866 52 4.1886 58.
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 37.85539 36 2.80728 38.93697 37 2.88526 40.01856 38 2.96324 41.10014 39 3.04122 42.18173 40 3.1192 43.2633 41 3.19718 44.34489 42 3.27516 45.42647 43 3.35314 46.50805 44 3.43112 47.58964 45 3.5091 48.67122 46 3.58708 49.7528 47 3.66506 50.83438 48 3.74304 51.91596 49 3.82102 52.99755 50 3.899 54.07913 51 3.97698 55.
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 36.75342 36 2.72556 37.80352 37 2.80127 38.85362 38 2.87698 39.90371 39 2.95269 40.95381 40 3.0284 42.00391 41 3.10411 43.05401 42 3.17982 44.10411 43 3.25553 45.1542 44 3.33124 46.2043 45 3.40695 47.2544 46 3.48266 48.30449 47 3.55837 49.35459 48 3.63408 50.40469 49 3.70979 51.45479 50 3.7855 52.50489 51 3.86121 53.
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 35.47669 36 2.63088 36.49031 37 2.70396 37.50393 38 2.77704 38.51755 39 2.85012 39.53116 40 2.9232 40.54479 41 2.99628 41.5584 42 3.06936 42.57202 43 3.14244 43.58565 44 3.21552 44.59926 45 3.2886 45.61288 46 3.36168 46.62651 47 3.43476 47.64012 48 3.50784 48.65374 49 3.58092 49.66736 50 3.654 50.68098 51 3.72708 51.
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 34.34073 36 2.54664 35.3219 37 2.61738 36.30306 38 2.68812 37.28422 39 2.75886 38.26539 40 2.8296 39.24655 41 2.90034 40.22772 42 2.97108 41.20888 43 3.04182 42.19005 44 3.11256 43.17121 45 3.1833 44.15237 46 3.25404 45.13354 47 3.32478 46.1147 48 3.39552 47.09587 49 3.46626 48.07703 50 3.537 49.05819 51 3.60774 50.
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 33.22905 36 2.4642 34.17846 37 2.53265 35.12785 38 2.6011 36.07726 39 2.66955 37.02666 40 2.738 37.97606 41 2.80645 38.92546 42 2.8749 39.87486 43 2.94335 40.82426 44 3.0118 41.77366 45 3.08025 42.72307 46 3.1487 43.67247 47 3.21715 44.62187 48 3.2856 45.57127 49 3.35405 46.52067 50 3.4225 47.47008 51 3.49095 48.
iCOM Control Training and Service Manual Suction Transducer Information (Codes A124-A128) % 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 psig -33.5 -31.6 -29.7 -27.8 -26.0 -24.1 -22.2 -20.3 -18.5 -16.6 -14.7 -12.8 -11.0 -9.1 -7.2 -5.3 -3.5 -1.6 0.3 2.2 4.1 5.9 7.8 9.7 11.6 13.4 15.3 17.2 19.1 20.9 22.8 24.7 26.6 28.4 30.3 32.2 34.1 35.9 37.8 39.7 41.6 43.4 45.3 47.2 49.1 50.9 52.8 54.7 56.6 58.4 60.
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 will have a code on a serial tag displayed on the front of the electric panel. This code when entered during the factory QA process will define unit configuration and auto set various parameters for functionality.
iCOM Controls Training and Service Manual Troubleshooting Checklist 1. Check the obvious before beginning troubleshooting. A. Be sure that a remote control switch has not been shut off. B. Be sure that the communication cable is properly connected. C. Be sure that power is reaching all modules associated with the system. 2. Power down the entire unit during the process of removing or replacing any component or cable. A. Serious damage to components may result if this step is not taken. B.
iCOM Control Training and Service Manual Glossary of Unit and System Parameters User Menu Code U102 U103 U104 U105 U106 Code U202 U203 U204 U205 U206 U207 U208 U209 U210 U211 Code U301 U302 U303 U304 U305 U306 U307 U308 U309 U310 U311 U312 Setpoints Temperature setpoint Humidity setpoint Predictive Humidity control Supply Limit Supply Limit Value Graphics System temperature time scale System temperature graph height System humidity time scale System humidity graph height Unit temperature time scale Unit
iCOM Controls Training and Service Manual Code U401 U402 U403 U404 U405 U406 U407 U408 U409 U410 Code U502 U502 U503 U503 U504 U504 U505 U505 U506 U506 U507 U507 U508 U508 U509 U509 U510 U510 U511 U511 Code U603 U603 U603 U603 U603 U603 U603 U605 U607 U609 U610 U611 Display Setup Language Date Time Temperature Indication Display contrast Buzzer Frequency Backlight off after x hours Screen: Display shows: Display View Total Run Hours Fan Motor Fan Motor Limit Compressor 1 Compressor 1 Limit Compressor 2 Com
iCOM Control Training and Service Manual Code U703 U704 U705 U706 Service contacts Address line 1 Address line 2 Address line 3 Address line 4 Type System System System System Service Menu Code S102 S103 S104 S105 S106 S107 S108 S109 S110 S113 S114 S115 S116 S117 S118 S119 Code S502 S503 S504 S505 S506 S507 S508 Code S002 S003 S004 S005 S006 S007 S008 Setpoints Temperature setpoint Humidity setpoint Predictive Humidity control Supply Limit Supply Limit Value Autoset enable Temperature proportional band
iCOM Controls Training and Service Manual S013 S014 S015 S016 S017 S018 S019 S024 S025 S026 S027 S028 S029 S030 S031 S032 S033 S035 S036 S037 S038 S039 S040 S041 S042 S043 S044 S046 S047 S048 S049 S050 S051 S052 S057 S058 S059 S060 S061 S062 Fan Settings Number of starts Working hours Average working time Starts per day optimum Starts per day worst Number of alarms Actual bonus Compr.
iCOM Control Training and Service Manual S063 S068 S069 S070 S071 S072 S073 S074 S079 S080 S081 S082 S083 S084 S085 Code S302 S303 S304 S304 S305 S306 S307 S307 S308 S309 S313 S314 S315 S324 S325 S326 S327 S328 S329 S330 S331 S332 S333 S335 S336 S337 Actual bonus El.
iCOM Controls Training and Service Manual S338 S339 S340 S341 S342 S343 S344 S346 S347 S348 S349 S350 S351 S352 S353 S354 Code S202 S203 S204 S205 S206 S207 S208 S209 S210 S211 S213 S214 S215 S216 S217 S218 S219 S220 Code S602 S603 S604 S605 S606 S607 S608 S609 S613 Status Filter Status Customer Input 1 Status Customer Input 2 Status Customer Input 3 Status Customer Input 4 HP 1 alarm counter per 12 hours HP 2 alarm counter per 12 hours Status HP 1 Status LP 1 Status TH 1 Status HP 2 Status LP 2 Status TH
iCOM Control Training and Service Manual S614 S615 S616 S617 S618 S619 S620 S624 S625 S626 S627 S628 S629 S630 S631 S632 S633 Code S802 S803 S804 S805 S806 S807 S808 S809 S810 S811 S813 S814 S815 S816 S817 S818 S819 S820 S821 S822 Code S402 S403 S404 S405 S406 Calibrated Temp. Sensor A Humidity Sensor A Calibrated Humidity Sensor A Temperature Sensor B Calibrated Temp.
iCOM Controls Training and Service Manual S407 S408 S409 S410 S411 S413 S414 S415 S416 Code S702 S703 S704 S705 S706 Electrical Hot water On/Off Hot gas 3P actuator runtime 3P actuator direction Humidification enabled Infrared Flush Rate Dehum enabled Electric reheat operation Service contacts Country Address line 1 Address line 2 Address line 3 Address line 4 Unit Unit Unit Unit Unit Unit Unit Unit Type System System System System System Advanced Menu Code A002 A003 A004 A005 A006 A007 A008 A009 A010 A0
iCOM Control Training and Service Manual A117 A118 A124 A124 A125 A125 A126 A127 A127 A128 A128 A129 A130 A131 A132 A135 A136 A137 A138 A139 A140 A141 A142 A143 A146 A147 A148 A149 A150 A151 A152 A153 A154 A155 Code A201 A202 A203 Low pressure threshold Phase 1 Low pressure threshold Phase 2 LP1 sensor 0% = LP1 sensor 0% = LP1 sensor 100% = LP1 sensor 100% = Actual LP1 signal LP2 sensor 0% = LP2 sensor 0% = LP2 sensor 100% = LP2 sensor 100% = Actual LP2 signal Pump down cutout Pump down recycle Condenser C
iCOM Controls Training and Service Manual Glossary of Terms Address: A pattern of characters that identifies a unique storage location Algorithm: A set of procedures to obtain a given result Ambient: Condition on immediately surrounding atmosphere or area: usually refers to temperature or pressure Analog: Refers to circuitry; also called linear circuitry; circuitry that varies certain properties or electricity continuously and smoothly over a range Anti-Static Material: A slightly conductive material that
iCOM Control Training and Service Manual CPU: Central Processing Unit; the part of a computer system that contains the main storage, arithmetic unit and special register groups (It performs arithmetic operations, controls instruction processing and provides timing signals.
iCOM Controls Training and Service Manual Impedance: Opposition that a circuit offers to the flow of current through it, measured in Ohms Input: An incoming information signal Isolation: Separation of one device or environment from the effects of an adjacent or connected device or environment Lead Compressor: Compressor coming on first as a result of a call for Cooling 1 Lag Compressor: Compressor coming on second as a result of a call for Cooling 2 LED: Light Emitting Diode; a semiconductor that emits ligh
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 Program: A set of instructions to achieve a certain result PROM: Programmable Read-Only Memory; an Integrated Circuit (IC) memory chip whose stored data can be read at random (The IC can be used only one time.
iCOM Controls Training and Service Manual Computer and Network Terms Agent: A program that performs some information gathering or processing task in the background. Typically, an agent is given a very small and well-defined task. Although the theory behind agents has been around for some time, agents have become more prominent with the recent growth of the Internet. Many companies now sell software that enables you to configure an agent to search the Internet for certain types of information.
iCOM Control Training and Service Manual Ethernet: A local-area network (LAN) architecture developed by Xerox Corporation in cooperation with DEC and Intel in 1976. Ethernet uses a bus or star topology and supports data transfer rates of 10 Mbps. The Ethernet specification served as the basis for the IEEE 802.3 standard, which specifies the physical and lower software layers. Ethernet uses the CSMA/CD access method to handle simultaneous demands. It is one of the most widely implemented LAN standards.
iCOM Controls Training and Service Manual • • • • wide-area networks (WANs): The computers are farther apart and are connected by telephone lines or radio waves. campus-area networks (CANs): The computers are within a limited geographic area, such as a campus or military base. metropolitan-area networks MANs): A data network designed for a town or city. home-area networks (HANs): A network contained within a user's home that connects a person's digital devices.
iCOM Control Training and Service Manual There are a variety of standard protocols from which programmers can choose. Each has particular advantages and disadvantages; for example, some are simpler than others, some are more reliable, and some are faster. From a user's point of view, the only interesting aspect about protocols is that your computer or device must support the right ones if you want to communicate with other computers. The protocol can be implemented either in hardware or in software.
iCOM Controls 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 0-255 represented in decimal form instead of binary form. For example, the IP address 168.212.226.204 in binary form is: 10101000.11010100.11100010.11001100.
iCOM Control Training and Service Manual Network Information Commonly known as: Network wire, Ethernet cable, Cat5 cable, the information following will explain the connectivity for Liebert Environmental units. Fundamentally, this section will explain the terms of networking so that you can apply the information to building your own network. The parts and components are discussed in generic fashion since equipment manufacturers and price range of the equipment varies and changes on an almost daily basis.
iCOM Controls Training and Service Manual Switches perform the same mechanical function, but they also include software inside that allows communication to operate at faster speeds and allow for multiple unit communication. Switches are the latest technology, but you are safe to use either device. d ig i t al Hubs are available in different configuration, with 4, 8, 12, 15 or 24 RJ45 connections. You can plug in the RJ45-connector into a hub while the network is running on the other connected 192.168.168.
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 see the numbers 8 through 1 (reading left to right) across the top and bottom and the letters D through A (reading from top to bottom) along both the left and right edges of the schematic. These numbers and letters are called locators, just like on a map.
iCOM Controls Training and Service Manual Electrical Schematics 182769 182770 182771 182772 182952 Liebert DS Liebert DS Liebert DS Liebert DS iCOM Global Control 8 - 12 Ton iCOM Global Control 15 – 30 Ton, 380 – 575V iCOM Global Control 15 – 30 Ton, 200 – 230V iCOM Global Control 8 - 12 Ton, SCR Reheat Connection Drawing Liebert DS 168
iCOM Control Training and Service Manual Notes 169
