Abstract:
A merchandiser including a case that defines a product display area. The case includes a canopy that has a first air outlet in fluid communication with a primary air passageway within the case to direct a primary air curtain into the product display area, and a second air outlet in fluid communication with a secondary air passageway within the case to direct a secondary air curtain into the product display area. The merchandiser also includes a divider that is coupled to the canopy between the primary air passageway and the secondary air passageway. The divider provides airflow communication between the primary air passageway and the secondary air passageway upstream of the first and second air outlets.
Abstract:
A door for a refrigerated merchandiser defining a product display area. The door includes a first glass panel, a second glass panel, and a third glass panel. The first glass panel is in communication with an environment surrounding the refrigerated merchandiser, and has a first surface arranged to face the environment and a second surface opposite the first surface. The second glass panel is positioned adjacent the first glass panel, and has a third surface arranged to face the second surface and a fourth surface opposite the third surface. The third glass panel is positioned adjacent the second glass panel and is in communication with the product display area. The third glass panel has a fifth surface arranged to face the fourth surface and a sixth surface opposite the fifth surface and arranged to face the product display area. The door also includes a split-silver low-emissivity coating covering at least a portion of the third surface or the fourth surface, and a conductive film covering at least a portion of the fifth surface or the sixth surface. The conductive film is connected to a power supply to heat the third glass panel and to at least one of inhibit and remove condensation on at least one of the first glass panel and the third glass panel.
Abstract:
A multi-zone heat exchanger has a first end and a second end and a width divided into a plurality of parallel airflow zones. Each zone defines an airflow section of the heat exchanger that receives a portion of the airflow through the heat exchanger. A first tube of continuous construction is coupled to an inlet port and to an outlet port and forms a first refrigerant circuit spanning three or more passes from the first end to the second end. The first refrigerant circuit passes between at least two zones of the plurality of zones. A second tube of continuous construction is coupled to the inlet port and to the outlet port and forms a second refrigerant circuit spanning three or more passes from the first end to the second end. The second refrigerant circuit passes between the at least two zones of the plurality of zones.
Abstract:
A refrigerated merchandiser includes a case defining a product display area and having a base, a lower flue, a first air passageway, and a second air passageway. The first air passageway and second air passageway are in fluid communication with the lower flue and with the product display area. The refrigerated merchandiser also includes an evaporator positioned in the first air passageway and a fan assembly positioned in the base in fluid communication with the lower flue to generate an airflow. A fan plenum into which the fan assembly is disposed includes an airflow divider to direct a first portion of the airflow to the first air passageway and to direct a second portion of the airflow to the second air passageway. The proportion of air between the first portion and the second portion is a function of the position and geometry of the airflow divider.
Abstract:
A refrigerated merchandiser includes a case defining a product display area and having a base, a lower flue, a first air passageway, and a second air passageway. The first air passageway and second air passageway are in fluid communication with the lower flue and with the product display area. The refrigerated merchandiser also includes an evaporator positioned in the first air passageway and a fan assembly positioned in the base in fluid communication with the lower flue to generate an airflow. A fan plenum into which the fan assembly is disposed includes an airflow divider to direct a first portion of the airflow to the first air passageway and to direct a second portion of the airflow to the second air passageway. The proportion of air between the first portion and the second portion is a function of the position and geometry of the airflow divider.
Abstract:
A method of controlling a refrigerated merchandiser including a plurality of display case modules each having a separate refrigeration circuit with a compressor and an evaporator. The method includes selectively starting and stopping a first compressor of a first refrigeration circuit having a first evaporator associated with a first display case module to regulate a temperature in a product display area of the first display case module, and selectively starting and stopping a second compressor of a second refrigeration circuit having a second evaporator associated with a second display case module to regulate a temperature in a product display area of the second display case module. The method also includes controlling the first refrigeration module and the second refrigeration module based on a heat load of the merchandiser and a predetermined number of start/stop cycles of each of the first compressor and the second compressor within a given time period.
Abstract:
A door for a refrigerated merchandiser defining a product display area. The door includes a first glass panel, a second glass panel, and a third glass panel. The first glass panel is configured to be in communication with an environment surrounding the refrigerated merchandiser, and has a first surface arranged to face the environment and a second surface opposite the first surface. The second glass panel is positioned adjacent the first glass panel, and has a third surface arranged to face the second surface and a fourth surface opposite the third surface. The third glass panel is positioned adjacent the second glass panel and is configured to be in communication with the product display area. The third glass panel has a fifth surface arranged to face the fourth surface and a sixth surface opposite the fifth surface and arranged to face the product display area. The door also includes a split-silver low-emissivity coating covering at least a portion of the third surface or the fourth surface, and a conductive film covering at least a portion of the fifth surface or the sixth surface. The conductive film is configured to be connected to a power supply to heat the third glass panel and to at least one of inhibit and remove condensation on at least one of the first glass panel and the third glass panel.
Abstract:
A fan plenum for a refrigerated merchandiser, in which the refrigerated merchandiser includes a case defining a product display area and a lower flue, a first air passageway, and a second air passageway, and in which the first air passageway and second air passageway are in fluid communication with the lower flue and with the product display area, includes a top wall including a fan aperture for receiving a fan having a plurality of fan blades. The fan plenum further includes a side wall and a plenum base. An airflow divider partitions the fan plenum into a first duct and a second duct. The first duct is fluidly couplable with the first air passageway and the second duct is fluidly couplable with the second air passageway.
Abstract:
A refrigerated merchandiser includes a case defining a product display area and having a base, a lower flue, a first air passageway, and a second air passageway. The first air passageway and second air passageway are in fluid communication with the lower flue and with the product display area. A fan plenum has an outlet defining a first plane. A second plane is defined perpendicular to the first plane and passing through the center of a fan aperture. The fan plenum further includes an airflow divider with a first wall member and a second wall member positioned to direct a first portion of the airflow to the first air passageway and a second portion of the airflow to the second air passageway. The space between the first wall member and the second wall member defines an area, the greater portion of which is to one side of the second plane.
Abstract:
A method of controlling a refrigerated merchandiser including a plurality of display case modules each having a separate refrigeration circuit with a compressor and an evaporator. The method includes selectively starting and stopping a first compressor of a first refrigeration circuit having a first evaporator associated with a first display case module to regulate a temperature in a product display area of the first display case module, and selectively starting and stopping a second compressor of a second refrigeration circuit having a second evaporator associated with a second display case module to regulate a temperature in a product display area of the second display case module. The method also includes controlling the first refrigeration module and the second refrigeration module based on a heat load of the merchandiser and a predetermined number of start/stop cycles of each of the first compressor and the second compressor within a given time period.