HONEYWELL 621-9938 Module

New original DCS Module 621-9938 In Stock

Description 

An HVAC system is designed according to capacity requirements, an acceptable combination of first cost and operating costs, system reliability, and available equipment space.Figure 2 shows how an HVAC system may be distributed in a small commercial building. The system control panel, boilers, motors, pumps, and chillers are often located on the lower level. The cooling tower is typically located on the roof. Throughout the building are ductwork, fans, dampers, coils, air filters, heating units, and variable air volume (VAV) units and diffusers. Larger buildings often have separate systems for groups of floors or areas of the building.The control system for a commercial building comprises many control loops and can be divided into central system and local- or zone-control loops. For maximum comfort and efficiency, all control loops should be tied together to share information and system commands using a building management system. Refer to the Building Management System Fundamentals section of this manual.

About Us

High Five PLC Parts Limited for many years, is a professional engaged in large-scale system (distributed control system, programmable controller, redundant fault-tolerant control systems, robot control system, large servo control system is the central feeding system plastic molding auxiliary equipment and automation of whole plant planning) imported automation system such as spare parts, modules, sales and system integration of high-tech enterprises. The company is equipped with professional technicians to provide customers with better service.

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We double check and test the goods before shipping, we have experienced and   dedicated technical staff for inspecting every module and card as to ensure the end user use them perfectly without any probelm and added trouble.

We help customer save cost with high quality and comparative price. We care about what customer care, and see the end user's benefits as important, we would like to build long-term business relationship with customers.