Method device and system for heating/cooling and ventilating a premises

Abstract

The device ( 8 ) comprises a casing ( 10 ) defining an inner chamber ( 11 ) and having an inlet orifice ( 14 ) for fresh ventilation air ( 12 ), an inlet orifice ( 15 ) for recycled air ( 16 ), and blowing orifices ( 19 ) for blowing out air contained in the inner chamber, which are intended each to be connected to a reception room of the premises. Units ( 25 ) for heat-treating the air are each combined with a blowing orifice and are controlled independently of one another according to the setpoint temperature of the corresponding reception room. The method consists in feeding recycled air into the inner chamber only if that is necessary to achieve the setpoint temperature in a reception room, and in heat-treating the fresh ventilation air, and if appropriate the recycled air, independently room by room.

1 . A method for heating/cooling and ventilating a premises comprising a plurality of occupiable rooms and a plurality of functional rooms, in which method:
 new ventilation air and recycled air is conveyed into an interior chamber defined by a box section situated inside the premises;   the air contained in said interior chamber is thermally treated according to the set-point temperature in at least one occupiable room;   the air contained in said interior chamber is blown into each of the occupiable rooms that are to be supplied with air;   the stale air is removed from the functional rooms;   
       wherein:
 for each occupiable room that is to be supplied with air, the new ventilation air intended to be blown into a given occupiable room is thermally treated on the basis of the set-point temperature of said occupiable room and independently of the thermal treatment applied to the air intended to be blown into some other occupiable room; 
 and only if such a measure is needed in order to attain the set-point temperature in at least one occupiable room is recycled air conveyed to said interior chamber where it is mixed with the new ventilation air and undergoes the same thermal treatment. 
 
     
     
         2 . The method as claimed in  claim 1 , wherein the rate of flow of new ventilation air conveyed into an occupiable room is substantially constant and independent of the set-point temperature in said room. 
     
     
         3 . The method as claimed in  claim 1 , wherein the rate of flow of new ventilation air conveyed into an occupiable room is controlled to at least one parameter measured in the premises and corresponding to the ventilation requirement thereof. 
     
     
         4 . The method as claimed in  claim 1 , wherein recycled air is conveyed into the interior chamber when, once thermally treated new ventilation air has been blown into at least one occupiable room for a predetermined length of time, the temperature in said occupiable room still differs appreciably from the set-point temperature. 
     
     
         5 . A system for heating/cooling and ventilating a premises comprising a plurality of occupiable rooms and a plurality of functional rooms, the system comprising a heating/cooling and ventilation device comprising a box structure defining an interior chamber, the box structure comprising:
 at least one intake for new ventilation air and one intake for recycled air opening into said interior chamber;   blowing outlets for blowing out the air contained in the interior chamber, these being intended each to be connected to an occupiable room that is to be supplied with air;   a plurality of units for thermally treating the air, these each being associated with an air blowing outlet and intended to be controlled independently of one another on the basis of the set-point temperature of the corresponding occupiable room;   
       the heating/cooling and ventilation device further comprising a blower designed to allow recycled air to enter the interior chamber via the intake for recycled air, 
       wherein the system comprises a central control unit capable of controlling the start-up and rotational speed of the recycling blower on the basis of the difference between the actual temperature and the set-point temperature in at least one occupiable room if the set-point temperature cannot be attained by thermally treating the new ventilation air alone. 
     
     
         6 . The system as claimed in  claim 5 , wherein each blowing outlet has a cross section tailored to the desired rate of flow of air in the corresponding occupiable room. 
     
     
         7 . The system as claimed in  5 , wherein it comprises a non-return valve designed to prevent air contained in the interior chamber from leaving via the intake for recycled air. 
     
     
         8 . The system as claimed in  claim 5 , wherein it further comprises a ventilation module comprising an inlet for new ventilation air from outside the premises, an outlet for new ventilation air which is connected to the intake for new ventilation air of the device, a stale-air inlet connected to each of the functional rooms from which air is to be extracted, and an outlet for letting stale air out to outside the premises. 
     
     
         9 . The system as claimed in  claim 8 , wherein the ventilation module is a double-flow CMV module. 
     
     
         10 . The system as claimed in  claim 8 , wherein it further comprises means of agitating the air in at least one occupiable room.