return air grille

return grille

return grille
A grille, 2 through which return air is extracted; usually not provided with an adjustment for volume of airflow.
References in periodicals archive ?
The temperature difference between the supply air and nearby return air grille was only 0.8 to 2.0 [degrees]C 1.4 to 3.6 [degrees]F) in building B; thus, the degree of temperature stratification in the occupied space was small.
Cut out a stud space opening to fit a return air grille. Cut off the grille screws and glue just the heads in place.
170 m 2 clean room lights 69 pieces return air grille 113 pieces clean room doors 4 pieces tread plate clean room ceiling 387 pieces injection circuits 3 pieces ball valves 68 pieces piping stainless steel approx.
COMPONENT CASE 1 CASE 2 CASE 3 CASE 4 Return Air Grille [check] Supply Air Diffuser [check] Ductwork [check] Conventional DX Air [check] Conditioning Unit Conventional Hot Water [check] Boiler Water Pipes [check] Expansion Tanks [check] Control Valves [check] VRF & DX Units With [check] Variable Speed Compressors Condensing Hot Water [check] Boilers Constant Speed Pumps/Fan [check] Pumps/Fans With Variable [check] Speed Drive Industrial Local Exhaust [check] Commercial Kitchen [check] Exhaust Duct Commercial Kitchen Hood [check] COMPONENT COMMENTS Return Air Grille Reduced noise, possible reduction in pressure drop in ducted return systems.
The temperature difference between the supply air and nearby return air grille was only 0.8 to 2.0[degrees]C 1.4 to 3.6[degrees]F) in building B; thus, the degree of temperature stratification in the occupied space was small.
The variation of temperature and humidity at return air grille were recorded by a multi-channel data logger (YOKOGAWA, Model MV100) with several temperature and humidity transmitters.
My teenage children entertained themselves for hours spying on each other by listening through the return air grilles. The first modification my wife and I made to the house was to blank off the return air grille to our bedroom ...
The variation of temperature and humidity at return air grille were recorded by a multi-channel data logger (YOKOGAWA, Model MV 100) with several temperature and humidity transmitters.
The modular simple display case composed of supply air grille with minimum width of 4 cms, and return air grille positioned at variable angles and the air in the room is allowed to mix with the supply incoming air from the jet along the length of the Discharge Air Grille, DAG and along its height.
The return air passed through a hinged core return air grille. I opened the grille core, and there was the filter totally clogged with dirt.
The return air grilles, return air ducts to the air handling unit (AHU), the interior surfaces of the AHU, mixing box, coil compartment, condensate drain pans, humidifiers and dehumidifiers, supply air ducts, fans, fan housing, fan blades, air wash systems, spray eliminators, turning vanes, filters, filter housings, reheat coils, and supply diffusers are all considered part of the HVAC system.