SECTION 3

MICROPROCESSOR

3.1TEMPERATURE CONTROL MICROPRO- CESSOR SYSTEM

The temperature control Micro-Link 2i microprocessor system (see Figure 3- 1) consists of a key pad, display module, the control module & expansion module set (controller) and interconnecting wiring. The controller houses the temperature control software and the DataCORDER Software. The temperature control software functions to operate the unit components as required to provide the desired cargo temperature and humidity. The DataCORDER software functions to

record unit operating parameters and cargo temperature parameters for future retrieval. Coverage of the temperature control software begins with paragraph 3.2. Coverage of the DataCORDER software is provided in paragraph 3.6.

The key pad and display module serve to provide user access and readouts for both of the controller functions, temperature control and DataCORDER. The functions are accessed by key pad selections and viewed on the display module. The components are designed to permit ease of installation and removal.

C O N T R O L L E R

CONTROL MODULE

EXPANSION MODULE

DISPLAY MODULE

KEY PAD

TEMPERATURE CONTROL SOFTWARE

CONFIGURATION

 

OPERATIONAL

 

ALARMS

SOFTWARE

 

 

SOFTWARE

 

(AL<70)

 

 

 

 

 

 

 

CONFIGURATION

 

 

FUNCTION

 

TO

VARIABLE

 

 

CODE (Cd)

 

 

DISPLAY

(CnF##)

 

 

 

 

 

 

 

 

 

 

 

PRE--TRIP

INTERROGATION CONNECTOR

DataCORDER SOFTWARE

DATAREADER

CONFIGURATION

 

OPERATIONAL

 

ALARMS

SOFTWARE

 

 

SOFTWARE

 

(AL>69)

 

 

 

 

 

 

 

CONFIGURATION

 

 

FUNCTION

 

TO

VARIABLE

 

 

CODE (dC)

 

 

DISPLAY

(dCF## read only)

 

 

 

 

 

 

 

 

 

 

 

DATA

STORAGE MEMORY

TO

DISPLAY (Scrollback)

Computer Device

With DataLine

Software

Figure 3- 1 Temperature Control System

3-1

T-309

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Image 26
Carrier 69NT20-531-300 manual Section Microprocessor, Temperature Control System

69NT20-531-300 specifications

The Carrier 69NT20-531-300 is a cutting-edge rooftop unit designed to meet the demanding requirements of commercial heating and cooling applications. This model embodies Carrier’s commitment to energy efficiency, reliability, and advanced technological features that enhance indoor comfort while minimizing operational costs.

One of the standout features of the Carrier 69NT20-531-300 is its high energy efficiency. It is equipped with advanced compressor technology that optimizes performance while reducing energy consumption. This ensures that businesses can maintain a comfortable indoor climate without incurring exorbitant utility bills. With a high Seasonal Energy Efficiency Ratio (SEER) and Energy Efficiency Ratio (EER), users can expect not only enhanced comfort but also significant cost savings over time.

The cooling capabilities of the 69NT20-531-300 are complemented by its robust heating options. This unit utilizes a gas heat exchanger, ensuring quick and even heating throughout the space. The combination of cooling and heating capabilities in one compact unit makes it a versatile choice for various applications, including retail spaces, offices, and warehouses.

In addition to its impressive performance specifications, the Carrier 69NT20-531-300 incorporates innovative technologies that further enhance its functionality. The unit comes with advanced controls, allowing for precise temperature regulation and zoning capabilities. This ensures that different areas of a building can maintain their desired temperatures based on usage, improving overall energy efficiency.

Durability is another hallmark of the Carrier 69NT20-531-300. The unit is constructed with high-quality materials and features a weather-proof cabinet that protects it from the elements, ensuring long-term reliability even in harsh conditions. Furthermore, its modular design simplifies maintenance, making it easy for technicians to access critical components.

The 69NT20-531-300 is also designed with low noise operation in mind. It employs sound-dampening technology to ensure that operations are quiet, making it an ideal choice for locations where noise reduction is a priority, such as schools or healthcare facilities.

Overall, the Carrier 69NT20-531-300 stands out as a premier choice for businesses looking for an efficient, reliable, and feature-rich rooftop HVAC unit. Its blend of energy efficiency, advanced technology, and durability positions it as a leader in commercial heating and cooling solutions, making it a valuable investment for any commercial property.