PIN + ent

0 = OMIT ZONES [ent] to Select

8

8 = CODES [ent] to Select

ent

CODES

1 = User Codes

ent

001 USER

L3

ent

[ent] to Select 1 = Modify PIN

ent

001PIN

>5678

ent

001PIN

>#5678

Indicates

Dual Code

001 USER

L3

Selecting Codes

Enter the QUICK MENU. Press key 8 followed by the ent key.

User Codes

When the Codes option has been selected, press key 1 to access User Codes. Display each of the user numbers using key A>. Each user number offers options for PIN, level, name and where applicable time zones and groups. When the user number to be modified is displayed, press the ent key to access the Modify Pin option.

Modify Pin

The Modify Pin option allows a pin to be assigned to a user or an existing PIN to be modified. The PIN must be a four, five or six digit number that is unique to the system. If a duplicate PIN is assigned, the message Duplicate Entry is displayed. As each digit is entered it appears on the bottom line of the display. Pressing the * key erases the last digit displayed. Continued pressing of the *key will erase all of the digits. When the correct PIN has been assigned press the ent key to accept the programming and return to the previous menu level.

When a PIN has been assigned to a user number, a solid box („) is displayed on the line of the user number details screen.

Deleting a Pin

Existing PIN entries can be completely erased using the * key instead of a digit entry. When there is no PIN assigned to a user number a hollow square (†) is displayed in the top line of the users details screen.

Assigning Dual Codes

To program a user code as a Dual Code press the # key while theModify PIN option is selected. The # displays at the start of the assigned user PIN e.g. #5678. When a PIN has been as- signed as a dual code two solid boxes („„) are displayed in the top line of the users details screen.

Dual Codes Operation

Entry of a single dual code cannot gain access to the menu, set or unset the system. The message NO ACCESS – ADDI- TIONAL CODE is displayed. A second dual code must be entered within 60 seconds to access the menu, set or unset the system. Dual codes can be of different levels. The highest level code entered determines the access level to the system.

A single entry of a dual code, without a second dual code entry within 60 seconds, results in an Illegal Code record in the EventLog. All outputs programmed as Illegal Code are acti- vated.

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Honeywell 3-520C, 3-48C, 3-144C Selecting Codes, Modify Pin, Deleting a Pin, Assigning Dual Codes, Dual Codes Operation

3-520, 3-48C, 3-144, 3-520C, 3-144C specifications

Honeywell has established itself as a leader in electronic control and automation, and their series of products, including the 3-520C, 3-520, 3-144C, 3-48C, and 3-144, exemplify the company's commitment to innovation and quality. These devices are primarily designed for use in climate control and industrial automation applications, providing reliable operation and advanced features.

The Honeywell 3-520C and 3-520 are versatile controllers known for their ability to manage complex HVAC systems effectively. They feature intuitive programming capabilities and user-friendly interfaces, which make them suitable for both novice and experienced users. The 3-520 model has a comprehensive set of inputs and outputs that allow for the precise control of various HVAC components. One of its key technologies is the use of PID control algorithms, which ensure optimal temperature regulation by continuously adjusting based on real-time feedback.

The Honeywell 3-144C and 3-144 models provide enhanced control solutions with a focus on energy efficiency and performance. The 3-144C boasts advanced diagnostics and monitoring capabilities that facilitate quick troubleshooting, while its built-in analytics tools help users optimize energy consumption. Both models support various communication protocols, enabling seamless integration with existing building management systems.

Another notable product in this lineup is the Honeywell 3-48C, which stands out for its compact design and robust performance. This model is particularly well-suited for smaller systems where space is limited. Despite its size, the 3-48C does not compromise on features; it offers precise temperature control, programmable settings, and compatibility with a variety of HVAC components.

The characteristics of these Honeywell controllers include durable construction, ensuring long service life even in demanding environments. They are designed to operate efficiently across a broad range of temperatures and conditions. Additionally, the user-friendly interface and programmable settings allow for tailored control strategies, improving overall system performance.

Overall, Honeywell’s 3-520C, 3-520, 3-144C, 3-48C, and 3-144 models highlight the company’s dedication to providing advanced technological solutions that cater to modern HVAC needs, prioritizing efficiency, reliability, and ease of use. As the industry continues to evolve, these controllers remain relevant by incorporating the latest in control technology, making them excellent choices for climate control applications.