| 摘要 |
1487745 Air conditioning buildings SVENSKA FLAKTFABRIKEN AB 20 Sept 1974 [2 Oct 1973] 41119/74 Heading F4V In a building having rooms air conditioned from a central unit, the temperature of the air from the unit being maintained no higher than that required for the room needing least heating, the heat from the light fixtures is used to additionally and variably heat the rooms, the air flow through a particular room being adjustable upwardly from a minimal ventilation amount, the discharge air from a particular room being divided into a constant first portion and a second portion varying with a required heat level, and the second portion passing in heat exchange over the light fittings to vary the room heating effect of the fixtures. As shown the air from the central air conditioning unit (not shown) enters the individual room through a duct 1 and an adjustable air supply device 2 and leaves either through a slot 4 in a multi-pane window 5 and ducts 6, 7 for return to the unit or discharge to atmosphere, or through a variable opening 8 to pass around the light fixtures 9. The device 2 and the opening 8 are controlled by a thermostat 3, which may also control an electric heater (Fig. 2) for the incoming air. |
