Multizone air conditioning and ventilating unit

Claim 2

An air conditioning, heating and ventilating unit for a plurality of separate spaces on one floor of a building comprising means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater coil means through which heating fluid passes, cooling coil means through which cooling fluid passes, two blower means, duct means connecting one of the blower means to said separate spaces, said one blower means being adapted adapted to force air over said coils through said duct means toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils and on the upstream side of said duct means, there being one set of dampers for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil and damper means adjacent said transfer section for selectively directing the air passing through said transfer section into said discharge outlet and said outlet to said filter means.

Claim 3

An air conditioning, heating and ventilating unit for a plurality of separate living spaces on one floor of a building comprising means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater means adapted to heat air passing thereover, cooling coil means through which cooling fluid passes, two blower means, duct means connecting one of said blower means to said separate spaces, said one blower means being adapted to force air over said coils through said duct means toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils and on the upstream side of said duct means, there being one set of dampers for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil.

Claim 4

An air conditioning, heating and ventilating unit for a plurality of separate living spaces on one floor of a building comprising means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater means adapted to heat air passing thereover, cooling coil means through which cooling fluid passes, two blower means, duct means connecting one of said blower means to said separate spaces, said one blower means being adapted to force air over said coils through said duct means toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils and on the upstream side of said duct means, there being one set of dampers for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil.

Claim 5

An air conditioning, heating and ventilating unit for a plurality of separate living spaces on one floor of a building comprising means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater means adapted to heat air passing thereover, cooling coil means through which cooling fluid passes, two blower means, one of said blower means being adapted to force air over said coils toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils, there being one for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil, said other of said blower means comprising a pair of blowers.

Claim 6

An air conditioning, heating and ventilating unit for a plurality of separate living spaces on one floor of a building comprising means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater means adapted to heat air passing thereover, cooling coil means through which cooling fluid passes, two blower means, one of said blower means being adapted to force air over said coils toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils, there being one for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil, said other of said blower means comprising a pair of blowers.

Claim 7

An air conditioning, heating and ventilating unit as set forth in claim 3 wherein the axis of rotation of each of the blowers of said pair of blowers is generally parallel to the outside wall of said building.

Claim 8

An air conditioning, heating and ventilating unit for a plurality of separate living spaces on one floor of a building comprising means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater means adapted to heat air passing thereOver, cooling coil means through which cooling fluid passes, two blower means, one of said blower means being adapted to force air over said coils toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils, there being one of each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil, said one pair of blower means comprising at least one rotatable blower, and said other blower means comprising at least two rotatable blowers rotatable on a common axis, the axis of rotation of said one rotatable blower being generally perpendicular to a plane in which the axis of rotation of said two rotatable blowers is located.

Claim 9

An air conditioning, heating and ventilating unit for a plurality of separate living spaces on one floor of a building comprising means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater means adapted to heat air passing thereOver, cooling coil means through which cooling fluid passes, two blower means, one of said blower means being adapted to force air over said coils toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils, there being one of each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil, said one pair of blower means comprising at least one rotatable blower, and said other blower means comprising at least two rotatable blowers rotatable on a common axis, the axis of rotation of said one rotatable blower being generally perpendicular to a plane in which the axis of rotation of said two rotatable blowers is located.

Claim 10

An air conditioning, heating and ventilating unit as set forth in claim 5 including a motor for each set of dampers located on the downstream side of the coils.

Claim 11

In a multistory building as set forth in claim 7 wherein said return air means comprises a plurality of structural members between said two stories, the floor of the upper of said two stores and the ceiling of the lower of said two stories, said structural members being formed and arranged to permit air to pass thereby.

Claim 12

In a multistory building as set forth in claim 8 further including damper means adjacent said transfer section for selectively directing the air passing through said transfer section into said discharge outlet and said outlet to said filter means.

Claim 13

In a multistory building having a plurality of separate spaces on each story, an air conditioning, heating and ventilating system comprising a plurality of separate units, there being one for each story to be air conditioned, heated and ventilated, each separate unit including means for supplying cooled, heated or ventilating air, a plurality of duct means in the space between two stories for delivering said air from one of said separate units to a plurality of said separate spaces on one of said two stories, and return air means adjacent said duct means for permitting air to be exhausted from said separate spaces on said one of said two stories back to said separate unit, means for admitting outside to said unit, filter means through which aIr may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater coil means through which heating fluid passes, cooling coil means through which cooling fluid passes, two blower means, one of said blower means being adapted to force air over said coils toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils, there being one for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil, said return air means comprising a plurality of structural members between said two stories, the floor of the upper of said two stories and the ceiling of the lower of said two stories, said structural members being formed and arranged to permit air to pass thereby, and said other of said blower means comprising a pair of blowers.

Claim 14

In a multistory building having a plurality of separate spaces on each story, an air conditioning, heating and ventilating system comprising a plurality of separate units, there being one for each story to be air conditioned, heated and ventilated, each separate unit including means for supplying cooled, heated or ventilating air, a plurality of duct means in the space between two stories for delivering said air from one of said separate units to a plurality of said separate spaces on one of said two stories, and return air means adjacent said duct means for permitting air to be exhausted from said separate spaces on said one of said two stories back to said separate unit, means for admitting outside to said unit, filter means through which aIr may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater coil means through which heating fluid passes, cooling coil means through which cooling fluid passes, two blower means, one of said blower means being adapted to force air over said coils toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils, there being one for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil, said return air means comprising a plurality of structural members between said two stories, the floor of the upper of said two stories and the ceiling of the lower of said two stories, said structural members being formed and arranged to permit air to pass thereby, and said other of said blower means comprising a pair of blowers.

Claim 15

In a multistory building as set forth in claim 10 wherein the axis of rotation of each of the blowers of said pair of blowers is generally parallel to the outside wall of said building.

Claim 16

In a multistory building having a plurality of separate spaces on each story, an air conditioning, heating and ventilating system comprising a plurality of separate units, there being one for each story to be air conditioned, heated and ventilated, each separate unit including means for supplying cooled, heated or ventilating air, a plurality of duct means in the space between two stories for delivering said air from one of said separate units to a plurality of said separate spaces on one of said two stories, and return air means adjacent said duct means for permitting air to be exhausted from said separate spaces on said one of said two stories back to said separate unit, means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater coil means through which heating fluid passes, cooling coil means through which cooling fluid passes, two blower means, one of said blower means being adapted to force air over said coils toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils, there being one for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil, said return air means comprising a plurality of structural members between said two stories, the floor of the upper of said two stories and the ceiling of the lower of said two stories, said structural members being formed and arranged to permit air to pass thereby, said one pair of blower means comprising at least one rotatable blower, and said other blower means comprising at least two rotatable blowers rotatable on a common axis, the axis of rotation of said one rotatable blower being generally perpendicular to a plane in which the axis of rotation of said two rotatable blowers is located.

Claim 17

In a multistory building having a plurality of separate spaces on each story, an air conditioning, heating and ventilating system comprising a plurality of separate units, there being one for each story to be air conditioned, heated and ventilated, each separate unit including means for supplying cooled, heated or ventilating air, a plurality of duct means in the space between two stories for delivering said air from one of said separate units to a plurality of said separate spaces on one of said two stories, and return air means adjacent said duct means for permitting air to be exhausted from said separate spaces on said one of said two stories back to said separate unit, means for admitting outside air to said unit, filter means through which air may flow, a transfer section having a discharge outlet to the atmosphere and an outlet to said filter means, heater coil means through which heating fluid passes, cooling coil means through which cooling fluid passes, two blower means, one of said blower means being adapted to force air over said coils toward said separate spaces, the other of said blower means being adapted to force air returned to said unit from said separate spaces toward said transfer section, a plurality of sets of dampers on the downstream side of said coils, there being one for each separate space, each set including a hot deck damper for controlling the passage thereby of air passing over the heating coil and a cold deck damper controlling the passage thereby of air passing over the cooling coil, said return air means comprising a plurality of structural members between said two stories, the floor of the upper of said two stories and the ceiling of the lower of said two stories, said structural members being formed and arranged to permit air to pass thereby, said one pair of blower means comprising at least one rotatable blower, and said other blower means comprising at least two rotatable blowers rotatable on a common axis, the axis of rotation of said one rotatable blower being generally perpendicular to a plane in which the axis of rotation of said two rotatable blowers is located.

Claim 18

In a multistory building as set forth in claim 12 including a motor for each set of dampers located on the downstream side of the coils.