York YK-ZCU2x0-0 Global and Instant Shutdown, Trend Data Collection, Exception Schedules

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You can also force a single schedule, or all schedules, into the temporary occupancy state from the UI. This action places all members of the schedule into temporary occu- pancy. Members of the schedule can be a Group of zones or one or more CV RTUs. Again, when the time-out period expires, the members return to their normal occu- pancy schedule.

You can change the temporary occupancy time-out delay. Its range is from 15 to 240 minutes, with a default value of 120 minutes. You can also cancel temporary occu- pancy at any time from the UI.

To indicate which schedules (if any) are temporarily occupied, view the Schedules Summary on the System Manager or Coordinator. The Zone Status screen indicates whether a particular zone is temporarily occupied.

All Schedules - Temporary Occupancy

This option places all schedules under temporary occupancy. This function is the same as if just one schedule was under temporary occupancy. The same duration applies: 15 to 240 minutes.

Exception Schedules

You can add exception schedules throughout the year to accommodate holidays and other periods of time that require different scheduling. Each exception schedule can be for a single or reoccurring event, such as once every year. The exception replaces the complete weekly schedule for the day it is active. Two sets of occupied and unoccu- pied times can be defined per exception schedule.

Global and Instant Shutdown

The Global Shutdown function shuts down the entire system from the System Man- ager. This command shuts down all Coordinators and CV RTUs that report to the Sys- tem Manager. An enable function is also available to re-enable the entire system.

The Instant Shutdown function shuts down a single Coordinator, CV RTU, or IOM. Shutting down a coordinator also shuts down all of its zones. An enable function is also available to re-enable a single system.

Trend Data Collection

The System Manager and Coordinator keep records of the changing values of points in the system. You can view these values on a Trend report. The System Manager or Coordinator collects one sample every 15 minutes over the past 72 hours for the fol- lowing values:

•Zone temperature

•Supply or discharge air temperature

•Return air temperature

•Outside air temperature

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System Manager/Zone Coordinator User’s Manual

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Contents User’s Manual System Manager/Zone Coordinator Basic Procedures Setup ProceduresScheduling Procedures Zones, Groups, and Members Event SchedulingAlarm Procedures Summary ProceduresZone Setup Procedures Zoning System Setup ProceduresAuxiliary Points Setup Procedures Dial-up Communication ProceduresDocument Introduction System Manager/Zone Coordinator on the Network System Configuration System StartupSystem Manager/Coordinator Menu Structure Local Controller Display Menu StructureIcons on Main Selection Bar Screen LayoutZC6 Details Title Area Main Display AreaHelp Text/Paging Information Area Navigation AreaEnter Operator password Enter Password ScreenThree User Password Levels Default Passwords Provided List of Default PasswordsContents of Home Screen Display Home ScreensYK-SMU-0 Setup Display and Navigation ScreensData Entry Screens Schedule 1 Mon Occupancy TimeSpecifying User Name and Password in Browser Remote User InterfaceAlarms and Alarm Priorities Types of AlarmsAlarm Destinations Alarm DetectionBuffer Limitation PagersZones, Groups, and Members Event SchedulingText Messages Temporary Occupancy OverrideGlobal and Instant Shutdown Trend Data CollectionAll Schedules Temporary Occupancy Exception SchedulesDisplay Units Display Units on User InterfaceMaintenance Procedures Waking up the Display Basic ProceduresEntering Your Password Logging On the Remote User Interface Logging Off the Remote User InterfaceSetup Procedures Setup Options Menu StructureTime Management Parameters Setting Date and Time ParametersTime Management Changing the Administrator or Operator Password Change Operator PasswordEnabling or Disabling Password Security Security PasswordEnabling or Disabling the Remote User Interface Remote User InterfaceModem Setup Setting up a ModemSpecifying Ethernet Settings Modem ParametersEthernet Setup Ethernet ParametersCalibrating the Display YK-SMU-0 Display SetupSelecting Display Units Calibrate Screen Specifying System Manager/Zone Coordinator Name System Manager NameEntering Job Name Job NameScheduling Procedures Schedule Options Menu Structures Schedule 1 Daily Schedules Adding a ScheduleSchedule 1 Schedule Mon Example Schedules Screen for MondayDeleting a Schedule Delete Schedule ScreenSelect New Member for Schedule Adding a Member to a ScheduleSchedule 1 Member List Deleting a Member from a ScheduleAdding an Exception Schedule Properties for Exception May 15, 2008 through May 15Setting up Temporary Occupancy Time Properties for Exception Definition ScreenBeginning Temporary Occupancy of a Schedule Temporary Occupancy TimeEnding Temporary Occupancy of a Schedule Beginning or Ending Temporary Occupancy to All SchedulesAlarm Procedures Alarm Options Menu StructurePager Setup Parameters Part 1 Pager SetupConfiguring Pager as Alarm Destination Configuring E-mail Account as Alarm Destination Email SetupPager Setup Parameters Part 2 Mail Destination Setup Parameters Configuring Text Message as Alarm DestinationText Message Setup Text Message Setup Parameters Part 1Text Message Setup Parameters Part 2 Setting Alarm IndicatorsAlarm Priorities That Activate Alarm Indicators Screen Alarm Priorities that Activate Alarm IndicatorsYK-SMU-10 Alarms Viewing an Alarm SummaryDeleting One or All Alarms Alarms Detail ScreenSummary Procedures Summary Options Menu StructureYK-SMU-10 Summary Viewing System SummariesZC6 Zone Temperature Trend Viewing Trend DataZone Setup Procedures Zone Setup Options Menu StructureZC6 Zone Setup Setting Up a Changeover Bypass ZoneZone Setup Parameters Setting Up a CV RTU ZoneCV RTU 24 Zone Setup CV RTU Zone Setup ParametersVAV 24 Zone Setup Setting up a VAV RTU ZoneVAV RTU Zone Setup Parameters Editing a Zone Name Zone NameZC6 Zone Status Viewing Zone StatusCopying Zone Setup to All Zones Requesting Global Shutdown of all Zones in all Systems Instant Shutdown of All SystemsCV RTU1 Diagnostic Viewing Device DiagnosticsZoning System Setup Procedures Zoning System Setup Options Menu StructureYK-ZCU Zoning System Setup Setting Up a Zoning SystemZoning System Setup Parameters Zoning System Setup Parameters VAV RTUYK-ZCU Zoning System Status Viewing Zoning System StatusRequesting Instant Shutdown of a Zoning System Instant Shutdown of CV RTU24Balance Mode Balancing a Zoning SystemAuxiliary Points Setup Procedures Auxiliary Points Setup Options Menu StructureIOM-1 Auxiliary Points Selection Setting up Auxiliary PointsIOM Points Setup Selections Part 1 IOM Points Setup Selections Part 2 BO4Editing an IOM Controller Name IOM NameIOM-1 Auxiliary Points Details Viewing Auxiliary Points StatusAI1 Trend Viewing IOM Controller Point Trend DataDial-up Communication Procedures Creating a Dial-up ConnectionGetting Ready Window Connection Name Window Connection Availability Window Completing the New Connection Wizard New Connection Window Dialing up a System Manager or Coordinator Connection WindowMaintenance Options Menu Structure Backing up Current Configuration YK-SMU-0 Backup to USB Flash DriveRestoring Configuration Information YK-SMU-0 Restore from USB Flash DriveRestore Confirmation Screen System Manager Restoring Factory Settings YK-SMU-0 Restore Factory DefaultsRelearning Connected Devices YK-SMU-0 Relearn Connected DevicesRestarting the System Manager/Zone Coordinator

YK-ZCU2x0-0, YKSMU2x0-0, YK-ZCU4x0-0 specifications

York YK chillers are known for their reliability, efficiency, and advanced technology, making them a popular choice for a wide range of commercial applications. Among the various models, the YK-ZCU4x0-0, YKSMU2x0-0, and YK-ZCU2x0-0 stand out for their innovative features and performance capabilities.

The YK-ZCU4x0-0 is designed to offer maximum cooling capacity while maintaining energy efficiency. One of its main features is the variable speed drive technology, which allows for precise control of the compressor speed based on real-time cooling demands. This technology not only enhances energy savings but also reduces wear and tear on components, extending the unit's lifespan. Additionally, the YK-ZCU4x0-0 is equipped with advanced microchannel heat exchanger technology, enabling better heat transfer and smaller refrigerant charges, which contributes to its lower environmental impact.

The YKSMU2x0-0 model is particularly notable for its integrated controls and monitoring systems. This chiller comes with a user-friendly touch screen interface that allows operators to monitor performance metrics and make adjustments with ease. The model features an intelligent control system that optimizes operational efficiency by adapting to changing load conditions. Moreover, its robust design makes it suitable for diverse applications, from data centers to manufacturing facilities, where reliability is crucial.

Finally, the YK-ZCU2x0-0 emphasizes modular design, which allows for easy installation and scalability. Its compact footprint makes it suitable for spaces with limited installation area. This model also supports modular redundancy, ensuring that if one module experiences issues, others can take over without disruption to the cooling process. The combination of high-efficiency performance, modularity, and state-of-the-art features makes the YK-ZCU2x0-0 an attractive option for facility managers looking for dependable chillers.

In summary, the York YK-ZCU4x0-0, YKSMU2x0-0, and YK-ZCU2x0-0 chillers represent the forefront of cooling technology, offering advanced features that cater to energy efficiency, flexibility, and operational reliability. Whether needing a robust solution for cooling large industrial spaces or a more compact unit for specific applications, these models provide the versatility and performance required in today's demanding environments.
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