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Designated as an American National Standard, the Uniform Swimming Pool, Spa and Hot Tub Code (USPSHTC) is a model code developed by the International Association of Plumbing and Mechanical Officials to govern the installation and inspection of plumbing systems associated with swimming pools, spas and hot tubs as a means of promoting the public's health, safety and welfare.
Air coil freeze stat. A freeze stat is a temperature sensing device for HVAC that monitors a heat exchanger to prevent its coils from freezing.Freeze stats can be used on both refrigerant-to-air, and refrigerant-to-liquid type heat exchangers and serve different purposes with similar goals for each.
Freeze thaw resistance, or freezing and thawing resistance, is the property of solids to resist cyclic freezing and melting. See also. Frost weathering;
Active systems are often using a wearable on the swimmer, such as a wristband, that monitors the behaviour and position of the swimmer. If the swimmer is detected to be under water för a certain period, an alarm is triggered and through acoustic underwater communication from the wristband to receivers installed in the pool the alarm is transferred to on-site lifeguards that immediately can ...
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A freeze watch is a notice issued by the National Weather Service that announces that temperatures of 32 °F (0 °C) and below is possible in the next 48 hours. This watch is only issued during the growing season when the freezing temperature may damage or kill unharvested crops, which would end the growing season.
In aeronautics, ice protection systems keep atmospheric moisture from accumulating on aircraft surfaces, such as wings, propellers, rotor blades, engine intakes, and environmental control intakes. [1] Ice buildup can change the shape of airfoils and flight control surfaces, degrading control and handling characteristics as well as performance.
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