For hot water baseboards, air bleed means removing any trapped air from the heating system. Heating water causes it to release dissolved air into the units. Over time, the air builds up, causing noise and uneven heating when the boiler operates. In some cases, the air lock becomes so bad that it completely blocks water circulation, according to SF Gate.
Each radiator or baseboard unit has a small, cylindrical fitting sticking up from its supply line. The valve is approximately 1 inch in height and has a screw at the top with a small nozzle on the side. Some bleed valves are located out of sight behind the shroud or end cover.
Turning the screw in a counterclockwise direction opens the valve, allowing air and some water to escape. To bleed the unit completely, the valve should remain open until a steady stream of water escapes. When valves do not release air or water, corrosion is likely closing off the opening, requiring cleaning or replacement of the valve.
Upon completion of the bleeding procedure, turning the screw in a clockwise direction closes the valve. Upon removal of the air from all units, owners should check lines for correct operation and replace any covers that were removed.Learn More
Electrostatic filters use polypropylene and polyurethane materials that create static electricity when air particles pass through them. The static electricity attracts and traps the air particles in the filter.Full Answer >
An air-cooled chiller is a refrigerating system used to cool or dehumidify air by flowing a refrigerant over an evaporator tube bundle. This process draws vapors out of the evaporator and ultimately allows the pressurized refrigerant to condense on a system of tubes and cool the air. When the refrigerant passes through an expansion device, it lowers its temperature. Air-cooled chillers are used in a number of professional settings.Full Answer >
An electric heater might blow cold air because the thermostat is set too low or is not working properly, the air has not had enough time to warm up yet or there is leaky or blocked duct work. Most of these are easily determined and corrected by the homeowner.Full Answer >
The water filters in Cuisinart coffeemakers remove the calcium and chlorine in tap water, and they help to rid the water of any unpleasant tastes or odors that may be present. As of 2014, Cuisinart coffeemakers such as the Coffee Plus programmable model use charcoal water filters.Full Answer >