428516-YUM-B-0908

Note: The user name and password screen in Figure 8 may also appear whenever you are logged on to the System Manager/Coordinator and access an operation, which requires user authentication such as changing your password. After you enter your password, you do not need to enter it again during the session, unless you request an operation that requires a higher level password.

Note: All screen representations in this document reflect how they appear at the display, not how they appear at the remote interface.

Alarms and Alarm Priorities

The System Manager and Zone Coordinator monitor the status of equipment on the network and report an alarm whenever they detect a problem has occurred such as an offline condition. The following information is gathered for each alarm:

•Name of the device the alarm is associated with

•Alarm condition

•Date and time when the condition occurred

•Suggested user action

•Priority of alarm, which can be one of the following:

•Service - service whenever convenient

•Service Priority - service is required as soon as possible

•Critical - service is required immediately

Types of Alarms

The Zone Coordinator generates an alarm for each new problem condition, such as:

•Offline transitions of the COB or VAV Rooftop Unit (RTU) Controller, Bypass Damper Controller and Zone Controllers on its Zone Bus

•Online transitions of the COB or VAV RTU Controller, Bypass Damper Controller and Zone Controllers on its Zone Bus

•Mechanical equipment problems detected by a COB or VAV RTU Controller Similarly, the System Manager generates an alarm for:

•Offline transitions of the COB or VAV RTU Controller, IOM Controllers and Coordinators on its System Bus

•Online transitions of the COB or VAV RTU Controller, IOM Controllers and Coordinators on its System Bus

•Mechanical equipment problems detected by a CV RTU, COB RTU or VAV RTU Controller

System Manager/Zone Coordinator User’s Manual

17

Page 16 Page 18
Page 17
Image 17
York YK-ZCU2x0-0, YKSMU2x0-0, YK-ZCU4x0-0 user manual Alarms and Alarm Priorities, Types of Alarms
Page 16 Page 18

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.
Top Page Image Contents