series KD Dual duct terminal units

Selection tables and Coding 6

Dual duct box, type KD Description The Koolair dual duct box, KD is utilised in systems where the accurate regulation of the air temperature is made by the actuation of a single spindle controlling both the heated and cooled air supplied into the mixing box. The box can be fitted with a constant flow regulator. The dual duct box has two spigot inlet connections for introduction of cold and hot air, spigots are circular or oval, depending on the size of the unit. Inlet duct dampers are interconnected and mounted at 90 degrees, with the control being carried out either electrically or pneumatically...

Selection table. Description Regenerated noise (air flow). Sound pressure level in dB (A) for different static pressures of air intake ducts considering attenuation and local characteristic of -10 dB. Ps min: minimum static pressure (air inlet) Sample selection: Input data: Total airflow required out of KD dual duct box of 1300 m3 / h, operating with a maximum static pressure difference of 250 Pa. Sound pressure permissible at the site of 40 dB (A) with an attenuation characteristic in the area and ductwork system of -10 dB (A). Result: Model KD-RCQK-1000, with a regenerated noise level of 34...

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KOOLAIR, S.A. Calle Urano, 26 Poligono industrial nº 2 – La Fuensanta 28936 Móstoles - Madrid - (España) Tel: +34 91 645 00 33 Fax: +34 91 645 69 62 e-mail comercial: [email protected] e-mail Koolair: [email protected]