Field Economizer Retrofit Guide

Is your economizer really working? Did you know, according to our market research, that as many as 70% of economizer systems installed may not be functioning at optimum efficiency today? Conditions such as faulty control setting, incorrect wiring, installation, or commissioning, or rusted or jammed air dampers could be restricting the ability to experience “free […]

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Panels 101: Designing and Building Control Panels

The most critical element that shapes a panel design project must be addressed at the very beginning of a project: where is the completed unit going to be installed? This very basic question dictates the type of protection the enclosure must provide to the equipment. The switchgear inside the enclosure must be protected from the […]

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Tech Talk: I need an explosion-proof control panel with a few pilot lights and…

Q: I’ve been buying explosion-proof enclosures and devices from Kele, and I must say that the Hazardous Locations section of your catalog is a gold mine of hard-to-find products! Now I need an explosion-proof control panel with a few pilot lights and externally operable selector switches mounted on the door of the panel. Can Kele help me with […]

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Tech Talk: Timing relays are confusing to me. Can you explain the difference between single-shot and interval timers? What happens if the output driving the relay changes state during a timing sequence?

When all of the possible combinations of timing states and initiating device transitions are considered, a stronger word than “confusing” may be in order! Below are some timing diagrams and sequences of operation in simple terms that may be of help. Since it is an electronic circuit that is energized rather than a coil, the […]

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Tech Talk: Air Capacity and Consumption – Choosing Electronic to Pneumatic Transducer

When it comes to selecting an electronic to pneumatic (E/P) transducer, the type of input and the pressure range of the output are the most common selection criteria considered. There are a couple of other specifications that are worth reviewing to select the best transducer for the job. These additional specifications are Air Consumption and […]

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Tech Talk: Demand Control Ventilation

How many sensors are required in a typical installation? Where should they be located? The number of zones with different occupancy patterns should dictate the number of sensors. In a small office application, for example, it would be ideal to have a sensor in the office space and one in the conference area. Carbon dioxide […]

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A simple approach is the future of building automation systems

Thanks to improved wireless networking technology and standardized communication protocols, it’s easier than ever to collect data from sensors. Plus, silicon chips continue to get cheaper, faster and better and can be located in valves, actuators, thermostats and wall outlets to provide more memory and faster computing. With the Internet of Things (IoT) continually expanding […]

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Building Automation and The Internet of Things

The Internet of Things (IoT) is changing the way people run their homes. More and more devices are becoming available to consumers that allow them to automate their thermostats and regulate their power consumption, often-times controlling these systems from the phone in their pocket. Products like the Nest thermostat and the Sense home energy monitor […]

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