Glycool at 50% Capacity – No Dead Band | Liebert TM-10098 instruction

Glycool at 50% Capacity – No Dead Band

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%		Cool 1 On		Cool 2 On
Valve		Open		Cool 1 On
		Open

Closed
70	71	72	73	74	75	76	77	78	79
	Band 1		Band 2 Compressors
	Glycool
	Valve
							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 mounted to the unit supply fluid line and serves as control interface in determining the system operation. Selection of the chilled water or compressorized operation is controlled by microprocessor using this aquastat to sense the water temperature.

The Dual Source Cooling program establishes two distinct control bands for cooling control operation in the same method as Glycool. The first band controls the operation of the chilled water valve and the second controls the operation of the compressors, either 2-stage or 4-stage.

The microprocessor checks the return air temperature and the entering chilled water fluid temperature to determine a cooling capacity. The chilled water cooling capacity is considered to be 100% if the entering Chilled Water fluid temperature is 8°F lower than the return air temperature.

When the microprocessor decides that the return chilled water 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

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Liebert TM-10098 Glycool at 50% Capacity – No Dead Band, Dual Source Cooling, iCOM Controls Training and Service Manual

Contents

TM-10098:Rev. 02/06 Environmental Training and Service ManualLarge Systems iCOM Microprocessor Training & Service Manual iCOM Control Training and Service ManualiCOM Page Table of Contents Chapter 1 Temperature/ Humidity ControliCOM Control Training and Service Manual Chapter 2: Programming Functions Chapter 4: General Troubleshooting DataChapter 3: iCOM Hardware Connections iCOM Controls Training and Service Manual Electrical Schematics How To Use The SchematicsGlossary of Terms Computer and Network Terms Temperature Control Program Types Chapter Temperature and Humidity Control ProgramsCooling and/ or Heating Required, in Percent % iCOM Controls Training and Service Manual Membership iCOM Control Training and Service ManualKnowledge Base/Decision Making Consequence iCOM Controls Training and Service Manual Proportional P ControlProportional + Integral PI Control Proportional + Integral + Derivative PID Control iCOM Control Training and Service Manual A suggested tuning procedure is as follows iCOM Controls Training and Service Manual Operations and Charts Temperature ControliCOM Control Training and Service Manual Temp Set Point + 1/2 Proportional Band 2 Stage Compressorized Cooling – No Dead Band 2 Stage Compressorized Cooling – With Dead Band iCOM Control Training and Service Manual STAGECOMPRESSORS, UNLOADER STATE Temp Set Point + 1/2 Proportional Band 4 Stage Compressorized Cooling – No Dead Band iCOM Controls Training and Service Manual 4 Stage Compressorized Cooling – With Dead BandSTAGE TEMPERATURE As the return air temperature increases Cooling 1, lead compressor unloaded, is activated at 72F or ½ of the dead band value plus 25% of the cooling control band. If the return air temperature continues to increase Cooling 2, lag compressor unloaded, will activate at 73F or ½ of the dead band value plus 50% of the cooling control band. If the return air temperature continues to increase Cooling 3, lead compressor unloaded, is activated at 74F or ½ of the dead band value plus 75% of the cooling control band. If the return air temperature continues to increase Cooling 4, lag compressor loaded, will activate at 75F or ½ of the dead band value plus 100% of the cooling control band iCOM Control Training and Service Manual 1 compressor operation Switch 2nd iCOM Controls Training and Service ManualSwitch 1st compressor ON compressor ON Glycool at 100% Capacity – No Dead Band iCOM Control Training and Service Manual iCOM Controls Training and Service Manual Glycool at 50% Capacity – No Dead BandDual Source Cooling Staged Electric Reheat Dual Cooling at 100% Capacity – No Dead Band iCOM Controls Training and Service Manual 3 Stage Electric Reheat – No Dead BandTemp Set Point - 1/2 Proportional Band 3 Stage Electric Reheat - With Dead Band Humidity Control Program Types Humidity Control Humidity iCOM Control Training and Service ManualHumidity Proportional Humidifier Operation Operations and ChartsiCOM Controls Training and Service Manual Relative Humidity Control iCOM Control Training and Service Manual Infrared Humidification – No Dead BandHumidity Set Point - 1/2 Proportional Band Infrared Humidification – With Dead Band iCOM Controls Training and Service Manual Autoflush Control Flow Chart iCOM Control Training and Service Manual Dehumidification Operation Humid Set Point: 50% Humidity Set Point + 1/2 Proportional Band iCOM Controls Training and Service Manual Reheating during Dehumidification iCOM Controls Training and Service Manual ParameterOperationNo Normal Delayed Start Additional ProgramsAuto restart iCOM Control Training and Service Manual High Pressure Cutout Fan Alarm / Fan settingsSuction Pressure Transducer Call for Cooling The Startup and Freeze Protection Program iCOM Control Training and Service Manual iCOM Controls Training and Service Manual Next Maintenance CalculationCalculation of next Maintenance Parameters The Maintenance Calculation is done as follows Parameters for next Maintenance Calculation General Maintenance SettingsiCOM Control Training and Service Manual Shared Parameters an understanding Networking and Functions Understanding the iCOM Network setup processiCOM Control Training and Service Manual The Basics for Cooling Unit Placement The Basics for HardwareiCOM Controls Training and Service Manual The Basic for Programming Example: Display: Example: Control Board: iCOM Control Training and Service Manual iCOM Controls Training and Service Manual Setting ParametersUnit No. Unit No. Power iCOM Control Training and Service ManualSwitch Unit No. U2U:Switc iCOM Controls Training and Service Manual Line S802: Number units connected: xx 01 - iCOM Control Training and Service Manual iCOM Controls Training and Service Manual TeamworkTeamwork Modes “No” Teamwork iCOM Control Training and Service Manual Unit Lead/ Lag or Running/ Standby FunctionTeamwork Mode Typical Lead/ Lag Running/ Standby Function Standby & Cascade iCOM Controls Training and Service Manual iCOM Control Training and Service Manual Notes Programming Functions ChapterSmall Graphic Display with Panel Mount Bezel Optional Large Graphic Display with Panel iCOM Display Components and Functions iCOM Keyboard LayoutiCOM Control Training and Service Manual iCOM Keyboard Layout iCOM Controls Training and Service ManualIcon Key Name iCOM Control Training and Service Manual iCOM Display Symbols/ Icons Status Display Programming Functions iCOM Control Training and Service Manual Menu Screens ICON Symbols Menu Parameters NamesLevel 2: Service Level 1: User iCOM Controls Training and Service Manual User Menu Icons and DescriptionsIcon Name C/ F Service Menu Icons and Descriptions Advanced Menu Icons and Descriptions Menu ParametersUser Menu Parameters iCOM Controls Training and Service Manual User Menu: Spare Parts List, Large Display Only DefaultUser Menu: Set Point Parameters U100 series Menu Line Default iCOM Controls Training and Service ManualUser Menu: Graphics Parameters Parameter Default User Menu: Set Alarm Parameters U200 seriesMenu Line Parameter User Menu: Active Alarms Parameters Parameter iCOM Controls Training and Service ManualUser Menu: Display Setup Parameters U400 series Default Default iCOM Control Training and Service ManualUser Menu Total Run Hours Parameters U500 series Menu Line User Menu: Service Contacts U700 series iCOM Controls Training and Service ManualMenu Line Parameter iCOM Control Training and Service Manual Service Menu ParametersDefault Menu Line Service Menu: Unit Diary Log Parameter DefaultMenu Line Parameter Default iCOM Control Training and Service ManualDefault Menu Line Default DefaultMenu Line Parameter Default iCOM Control Training and Service ManualDefault Menu Line Default iCOM Controls Training and Service ManualDefault Parameters: Page 6 of Default iCOM Control Training and Service ManualMenu Line Parameter Menu Line iCOM Controls Training and Service ManualParameter Range Menu Line iCOM Control Training and Service ManualParameter Range Service Menu Set Alarm Parameters DefaultDefault Menu Line Service Menu: Set Alarm Parameters: Page 3 of iCOM Control Training and Service ManualService Menu Set Alarm Parameters Menu Line Service Menu: Set Alarm Parameters: Page 5 of iCOM Controls Training and Service ManualService Menu Set Alarm Parameters Menu Line Menu Line iCOM Control Training and Service ManualParameter Range Default iCOM Controls Training and Service ManualDefault Menu Line Default iCOM Control Training and Service ManualDefault Menu Line Default iCOM Controls Training and Service ManualDefault Menu Line Default iCOM Control Training and Service ManualDefault Menu Line iCOM Controls Training and Service Manual Advanced Menu ParametersMenu Code Parameter Default iCOM Control Training and Service ManualDefault Menu Code Default iCOM Controls Training and Service ManualDefault Menu Code Menu Code DefaultParameter Range Menu Code DefaultParameter Range iCOM Control Training and Service Manual Events Notifications ParametersType Description Large Display iCOM Controls Training and Service Manual Events Notifications Parameters continuedType Description Large Display Events Notifications Parameters continued iCOM Control Training and Service ManualType Description Large Display Event ID number, Description and Function Events Notifications Parameters continuediCOM Controls Training and Service Manual Default LOSS OF iCOM Control Training and Service Manual HUM HRS iCOM Controls Training and Service Manual Unit COMP DIG SCROLL2 iCOM Control Training and Service Manual UNIT CODE MISMATCH iCOM Control Training and Service Manual Control Board Connections ChapterIntroduction iCOM Controls Training and Service Manual LCD Display Board iCOM Control Training and Service ManualLarge Disdplay Small Display Control Board DIP Switches and Plug Connectors Unit Mounted Control BoardiCOM Controls Training and Service Manual iCOM Control Board DIP Switch #2 Settings iCOM Control Training and Service ManualConnector Setting iCOM Control Board Jumper Settings iCOM Controls Training and Service ManualSetting Default Setting Setting Large Display Jumper SettingsDefault Setting Small Display DIP Switch #3 Settings Small Display Jumper Settings iCOM Controls Training and Service ManualSetting Default Setting iCOM Control Training and Service Manual DS SystemsP4 24 VAC Power P8: 24 VAC Alarm Inputs P22 Glycool Valve Std. Pressure Actuator iCOM Controls Training and Service ManualP32: Compressor Devices P33: Compressor Devices P38 Smoke Detector iCOM Control Training and Service ManualP39: Firestat & Remote Shutdown P40: Basic Unit Connections P65: Optional Intelleslot Power Suplly iCOM Controls Training and Service ManualP64: Unit Large Display Digital Signals P66: Unit Small Display Digital Signals iCOM Control Training and Service Manual Fuse Board Layout: All UnitsP4: 24 VAC Power P41: 24 VAC Power iCOM Controls Training and Service Manual Temperature/ Humidity Board: All UnitsTemperature/ Humidity Assembly Housing Temperature/ Humidity Board iCOM Control Training and Service Manual NOTES Chapter General Troubleshooting DataC P U iCOM Controls Training and Service Manual Isolation iCOM Control Training and Service ManualAreas of Control iCOM Controls Training and Service Manual BASIC OPERATION OF THE TRIACSemiconductor Semiconductor Showing No Movement of Electrons iCOM Control Training and Service Manual Schematic Drawing for the TriacFront and Left Side Views of the Triac Basic Operation of the Opto-Isolator Output Opto-IsolatorInput Opto-Isolator iCOM Control Training and Service Manual Troubleshooting the Output Opto-IsolatorOutput Opto-IsolatorPin Location OUTPUT VOLTAGE CHECK iCOM Controls Training and Service Manual Troubleshooting the Input Opto-IsolatorInput Opto-IsolatorPin Location INPUT VOLTAGE CHECK Microprocessor Control Board Alarm Input Opto-IsolatorLegendiCOM Control Training and Service Manual Opto Control Output Triac Legend Control Output Opto-IsolatorLegendiCOM Controls Training and Service Manual Opto iCOM Control Training and Service Manual iCOM Diagnostics / Service Mode Program iCOM Controls Training and Service Manual Basic Troubleshooting StepsProgramming DC Voltage check If 24 VAC is present perform the following iCOM Control Training and Service Manual iCOM Controls Training and Service Manual Moisture Content Charts Moisture Content at Temperature = 80F 26.7ºC iCOM Control Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 79F 26.1ºC iCOM Controls Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 78F 25.6ºC iCOM Control Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 77F 25.0ºC Grains Per Cu FtGrains Per Lb Moisture Content at Temperature = 76F 24.4ºC Grains Per Cu FtGrains Per Lb Moisture Content at Temperature = 75F 23.9ºC iCOM Controls Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 74F 23.3ºC Grains Per Cu FtGrains Per Lb Moisture Content at Temperature = 73F 22.8ºC iCOM Controls Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 72F 22.2ºC iCOM Control Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 71F 21.7ºC Grains Per Cu FtGrains Per Lb Moisture Content at Temperature = 70F 21.1ºC iCOM Control Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 69F 20.6ºC iCOM Controls Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 68F 20.0ºC iCOM Control Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 67F 19.4ºC Grains Per Cu FtGrains Per Lb Moisture Content at Temperature = 66F 18.9ºC iCOM Control Training and Service ManualGrains Per Cu Ft Grains Per Lb Moisture Content at Temperature = 65F 18.3ºC iCOM Controls Training and Service ManualGrains Per Cu Ft Grains Per Lb iCOM Control Training and Service Manual Suction Transducer Information Codes A124-A128 Digital Scroll High Temperature Sensor Chart NTC Code S606 and S608iCOM Controls Training and Service Manual Unit Code Description iCOM Control Training and Service ManualFACTORY SERVICE TECHNICIAN iCOM Controls Training and Service Manual Troubleshooting Checklist iCOM Control Training and Service Manual Glossary of Unit and System Parameters User MenuSet Alarms Code Display Setup iCOM Controls Training and Service ManualTimer Code Service contacts Service MenuStandby settings / Lead-lag Wellness / General Settings Fan Settings iCOM Controls Training and Service ManualCompr. 1 Settings Compr. 2 Settings Humidifier Settings El. Heater 3 SettingsDiagnostics / Service Code Set Alarms iCOM Controls Training and Service ManualCode Type System / Network Setup iCOM Control Training and Service ManualOptions Setup Code iCOM Controls Training and Service Manual Advanced MenuService contacts Factory Settings iCOM Control Training and Service Manual AccessCode iCOM Controls Training and Service Manual Glossary of Terms Hysteresis: Differential iCOM Control Training and Service Manual Input: An incoming information signal iCOM Controls 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 Control Training and Service Manual iCOM Controls Training and Service Manual Computer and Network Terms Ethernet: A local-areanetwork LANarchitecture developed by Xerox Corporationin cooperation with DECand Intelin 1976. Ethernet uses a bus or star topologyand supports data transfer ratesof 10 Mbps. The Ethernet specification served as the basis for the IEEE 802.3 standard, which specifies the physicaland lower softwarelayers. Ethernet uses the CSMA/CDaccess method to handle simultaneous demands. It is one of the most widely implemented LAN standards •the type of error checking to be used iCOM Controls Training and Service Manual There are a variety of standard protocols from which programmerscan choose. Each has particular advantages and disadvantages; for example, some are simpler than others, some are more reliable, and some are faster. From a userspoint of view, the only interesting aspect about protocols is that your computeror device must supportthe right ones if you want to communicate with other computers. The protocol can be implemented either in hardwareor in software iCOM Control Training and Service Manual Understanding IP Addressing: Every computer that communicates over the Internet is assigned an IP address that uniquely identifies the device and distinguishes it from other computers on the Internet. An IP address consists of 32 bits, often shown as 4 octets of numbers from 0-255represented in decimal form instead of binary form. For example, the IP address 168.212.226.204 in binary form is: iCOM Controls Training and Service Manual iCOM Control Training and Service Manual Network InformationWhat is networking?… HUBS AND SWITCHES iCOM Controls Training and Service Manual UNIT IDENTIFICATION OR ADDRESSINGTwisted pair - 10baseT - UTP Cable iCOM Control Training and Service Manual How To Use The Schematics Electrical Schematics iCOM Controls Training and Service Manual182769 Liebert DS iCOM Global Control 8 - 12 Ton iCOM Control Training and Service Manual