A combination light and pressure relief vent (10) is disclosed which includes a housing (11), a valve assembly (12), and a light assembly (13). The housing include a valve body (16), port tube (17), and an outside louver (18). The valve body has a low pressure intake port (25), a high pressure intake port (26), and a low pressure exhaust port (27). The valve assembly includes a low pressure intake valve (40), a high pressure intake valve (42), and a low pressure exhaust valve (44). The light assembly includes a heat sink casing (51) which partially defines a heat chamber (52). The casing has a front wall (55) to which is mounted an LED module (57). A lens cover (61) is coupled to the front surface of the casing. Heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

An apparatus is provided for preservation of fresh items or produce. The apparatus comprises a closed housing (1) to enable an environment within the housing to be controlled, a shelf (3) within the housing (1) for supporting fresh items, an ozone generator (10), a humidifier (8) and a propagation or distribution system (24, 17). The propagation or distribution system (24, 17) is configured to transfer ozone generated by the ozone generator (10) and water particles produced by the humidifier (8) separately to the vicinity of the shelf (3) before releasing both the ozone and water particles into the housing (1).

A cold storage heat exchanger includes refrigerant tubes having therein refrigerant passages and arranged to provide a clearance therebetween. A cold storage container is bonded to a refrigerant tube and defines therein a compartment receiving a cold storage material. The cold storage container has protrusion portions protruding outward and being in contact with the refrigerant tube.

The invention relates to a cml (1) for storing at least one set (2) of products (20), particularly a set of products arranged on at least one storage support (3), said cell comprising ventilation means (4) for creating a rear-to-front air flow (A) circulating in the housing (14) from the rear to the front of the housing or for creating a front-to-rear air flow (B) circulating in the housing (14) from the front to the rear of the housing, and at least one first sealing device (5 or 6) comprising a first flexible sealing element (50 or 60) that is inflatable in relation to one of the walls (10, 11, 12) of the cell and towards the inside of the housing (14) under the effect of an air pressure which is generated in the housing (14) by said air flow (A or B). The first sealing device (5 or 6) comprises at least one second sealing element (52 or 62) that can be actuated between an inactive configuration and an active configuration in which it exerts a mechanical pressure on part of the first flexible sealing element (50 or 60), said mechanical pressure being oriented towards the inside of the housing (14) and allowing said first flexible sealing element (50 or 60) to be distanced from said wall (10, 11, 12) of the cell in relation to which said first flexible sealing element (50 or 60) is inflatable. The cell comprises actuating means that allow the second sealing element (52 or 62) to be actuated into its active configuration.

Described herein is a single unit optimizing controller (100) capable of operating any known type of heating, ventilation, air conditioning and refrigeration HVACR system (an HVACR system is denote by reference numeral (101)), which include all ACR systems. HVACR system (101) takes the form of an air conditioning unit. The controller includes a communications section (102) for communicating with one or more remote controller terminal in the form of a web application (103) and a control section (104). The air conditioning unit of HVACR system (101) includes at least one cooling unit having a compressor wherein the control section is operatively associated with HVACR system (101) for selectively activating or deactivating the at least one cooling unit based on one or more settings received from web application (103) via communications section (102).

A food cooling method includes: a dehumidifying step of performing mainly a dehumidifying process on food by cooling the food with cool air of a first blow-out temperature at which no frost is generated on fins of the heat exchanger; and a cooling step of performing mainly a cooling process on the food by cooling the food having undergone the dehumidifying step with cool air of a second blow-out temperature which is lower than the first blow-out temperature and at which frost may be generated on the fins.

A modular air handler is adapted for installation in a racking assembly behind palletized product. The air handler operates to move air through the adjacent layers of palletized product upon placement of the palletized product in the adjacent space. The air handler can be deactivated in order to prevent unnecessary air flow when no palletized product is present in the adjacent space. A number of the modular air handlers may be provided for a racking assembly, such that individual pallet bays may be activated or deactivated as palletized product is deposited or withdrawn from the various pallet bays of the rack.

A blast cell system is provided with simple and scalable designs that prevent short cycling of air flow through any pallets in blast cells. The blast cell includes a plurality of suction channels that provide independent fluid pathways for directing the air drawn from different rows in the blast cell into the fan.

An automated grid based storage and retrieval system includes a framework structure including upright members and a grid of horizontal rails provided at upper ends of the upright members. The framework structure defines a plurality of storage volumes arranged adjacent one another below the horizontal rails. The storage volumes are open against the horizontal rails such that storage container vehicles may lower and raise storage containers into and out of the storage volumes. The system includes a plurality of vertical walls surrounding each of the plurality of storage volumes, and a cooler system adapted to draw air from an input of the cooler system, cool the air drawn from the input, and blow cooled air through an output of the cooler system. For each of the plurality of storage volumes, the system further includes a first air damper connected between the output of the cooler system and an air release area above the storage volume, and a second air damper connected between a void beneath the storage volumes and the input of the cooler system. The system includes a controller. The controller is adapted, independently for each of the plurality of storage volumes, to adjust airflow through the first air damper associated with that storage volume to control an overpressure and air temperature in the air release area, and to adjust airflow through the second air damper associated with that storage volume to control an underpressure in the void, such that a storage volume temperature is controlled separately for each of the plurality of storage volumes. The storage volume temperature is regulated by the air temperature in the air release area and by controlling a pressure differential between the overpressure in the air release area and the underpressure in the void in each of the storage volumes.

A blast cell system is provided with simple and scalable designs that prevent short cycling of air flow through any pallets in blast cells. The blast cell includes a plurality of suction channels that provide independent fluid pathways for directing the air drawn from different rows in the blast cell into the fan.