Most buildings require some aspect of water flow and, often, BTU measurement. Several different flow sensor techniques can be used depending on need. These include water type, application, accuracy, required measurement, installation challenges, and cost effectiveness. Below is a table to help you determine which technique, product, and installation is most relevant for your project. […]
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Guidelines for Replacement of Old Fire and Smoke Actuators
For Belimo combination fire/smoke damper actuators intended for installation in accordance with National Protection Association Standard for Installation of Air Conditioning and Ventilating Systems, NFPA 90A, damper actuators must meet the construction and performance requirements in UL555: Standard for Fire Dampers and UL555S: Standard for Smoke Dampers. Often, customers replace damper actuators for varying reasons […]
Read PostOutside Air Temperature Sensor Location
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 […]
Read PostTech 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 […]
Read PostTech 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 […]
Read PostTemperature Sensor Curve ID Numbers
Need help figuring out what type sensor you need for your automation system? This handy temperature curve chart might help. If not, give Kele a call! Sensor Type Temperature Sensor Description Typical Sensor User 3 10,000Ω @ 77°F, Type III material AET, American Automatrix, Andover, Carrier, Delta, Invensys, Teletrol, York 21 2252Ω @ […]
Read PostBelimo Zip Economizer – Time Saver!
The Belimo Zip Economizer is really a cool product that captured my attention. If you are or were in the field like I was, I’m sure you’ve struggled just as I did with the “Black Box” style of economizer modules. They could be difficult to commission at start-up if the OSA (outside air) was not […]
Read PostHoneywell T775 Controller
I started at Kele about 19 years ago. Over the years I’ve been fortunate to learn a good bit about controls from many very talented folks – mentors, fellow employees, industry experts, and customers. It is easy to have favorites in my line of work. Being in tech support over an extended period of time, […]
Read PostMeasuring Flow in Tight Spots
Often, one of the most challenging aspects of applying a flow-sensing device is the hunt. Tracking down the elusive and mysterious twenty diameters of straight, accessible pipe that the sensor manufacturer demands can be impossible at times. Let’s face it – it isn’t often that the Architect, Engineer, General Contractor, and all the subcontractors conspire […]
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