428516-YUM-B-0908

Default Passwords Provided

Several default passwords are defined from the factory. Each is listed as follows:

Table 4: List of Default Passwords

User Name

Default

Privileges

Available at:

 

Password

 

 

Guest

<blank>

View only

Remote UI only

 

 

 

 

Operator

1111

Modify all (except

Local and remote UI

 

 

password)

 

 

 

 

 

Admin

2222

All privileges

Local and remote UI

 

 

 

 

Home Screens

The Home screen appears when you first activate the System Manager or Zone Coor- dinator by touching its screen. This screen indicates the name and type of device, the current date and time, the software revision, and the outdoor air temperature. The Zone Coordinator Home Screen also shows Zone System Status. After 10 minutes of touch screen inactivity, the local UI times out, the user is logged out, and the screen goes to the Home screen. After 5 more minutes of inactivity (15 minutes total), the screen turns black.

System Manager Home Screen

YK-SMU-0

Thursday, May 8, 2008 5:23:44 PM

Outdoor Air Temperature: 63.1 Deg F

Zone Coordinator Home Screen

YK-ZCU-10

Thursday, May 8, 2008 5:23:44 PM

Zoning System Status: Off

Outdoor Air Temperature: 68.3 Deg F

Software Revision: 1.0.2445

Software Revision: 1.0.2445

Figure 5: Home Screens - System Manager and Zone Coordinator

Table 5 indicates the varied information for displaying the outdoor air temperature and zone system status on the Home screen. The current date, current time, outdoor air temperature, and zone system status values refresh.

Table 5: Contents of Home Screen Display

Type of Information

Status

What is Displayed

Outdoor Air Temperature

Reliable

Current outdoor air temperature with units are shown

 

 

 

 

Problem with

Sensor Problem

 

Sensor

 

 

 

 

 

Offline

Change-over Bypass (COB), Constant Volume (CV), or

 

 

Variable Air Volume (VAV) Rooftop Unit (RTU) Offline

 

 

 

 

Unavailable

Unavailable

 

 

 

Zoning System Status

Online

COB or VAV RTU status

 

 

 

 

Offline

COB or VAV RTU Offline

 

 

 

FIG:HmeScrn

System Manager/Zone Coordinator User’s Manual

13

Page 13
Image 13
York YK-ZCU4x0-0 Home Screens, Default Passwords Provided, List of Default Passwords, Contents of Home Screen Display

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.