HONEYWELL 621-1201 Module

New original DCS Module 621-1201 In Stock

Description 

An HVAC system is designed according to capacityrequirements, an acceptable combination of first cost andoperating costs, system reliability, and available equipmentspace.Figure 2 shows how an HVAC system may be distributed ina 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. Throughoutthe building are ductwork, fans, dampers, coils, air filters,heating units, and variable air volume (VAV) units anddiffusers. Larger buildings often have separate systems forgroups of floors or areas of the building.The control system for a commercial building comprisesmany control loops and can be divided into central system andlocal- or zone-control loops. For maximum comfort andefficiency, all control loops should be tied together to shareinformation and system commands using a buildingmanagement system. Refer to the Building ManagementSystem Fundamentals section of this manual.

About Us

Jak PLC for many years, is a professionalengaged in large-scale system (distributed control system, programmablecontroller, redundant fault-tolerant control systems, robot control system,large servo control system is the central feeding system plastic moldingauxiliary equipment and automation of whole plant planning) imported automationsystem such as spare parts, modules, sales and system integration of high-techenterprises. The company is equipped with professional technicians to providecustomers with better service.

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Wedouble check and test the goods before shipping, we have experienced and   dedicated technical staff for inspectingevery module and card as to ensure the end user use them perfectly without anyprobelm and added trouble.

Wehelp customer save cost with high quality and comparative price. We care aboutwhat customer care, and see the end user's benefits as important, we would liketo build long-term business relationship with customers.