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A pressure equalization port for a refrigeration unit is provided. The port includes a conduit having a thermally conductive body. The conduit includes a first opening exposed to a refrigeration chamber enclosed within the refrigeration unit, and a second opening exposed to a space external to the r

A pressure equalization port for a refrigeration unit is provided. The port includes a conduit having a thermally conductive body. The conduit includes a first opening exposed to a refrigeration chamber enclosed within the refrigeration unit, and a second opening exposed to a space external to the refrigeration chamber. At least one heat-dissipating refrigerant flow coil surrounds a portion of the thermally conductive body to heat said body.

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What is claimed is: 1. A pressure equalization port for a refrigeration unit having a refrigeration chamber and a closed loop refrigerant flow path configured to cool an interior of the refrigeration chamber, comprising: a conduit to equalize the air pressure between the refrigeration chamber and a

What is claimed is: 1. A pressure equalization port for a refrigeration unit having a refrigeration chamber and a closed loop refrigerant flow path configured to cool an interior of the refrigeration chamber, comprising: a conduit to equalize the air pressure between the refrigeration chamber and a space external to the refrigeration chamber, comprising: a thermally conductive body having a lumen passing therethrough, a first opening exposed to the refrigeration chamber, and a second opening exposed to the external space; and a refrigerant flow coil, forming a portion of the closed loop refrigerant flow path and having an inlet side fluidly coupled to a compressor and an outlet side fluidly coupled to a condenser coil, surrounding at least a portion of the thermally conductive body to transfer heat thereto. 2. The pressure equalization port of claim 1, wherein said thermally conductive body has a thermal conductivity at room temperature of at least 200 W/m·K. 3. The pressure equalization port of claim 1, wherein said thermally conductive body has a thermal capacitance at room temperature of at least 0.300 KJ/kg·K. 4. The pressure equalization port of claim 1, wherein said thermally conductive body has a mass of at least 0.300 kg. 5. The pressure equalization port of claim 1, wherein said thermally conductive body has a critical property ratio of at least 2000 KJ/m3·K. 6. The pressure equalization port of claim 1, wherein said thermally conductive body is in part comprised of a material selected from the group consisting of aluminum, copper, and steel. 7. A method of equalizing an air pressure differential between a refrigeration chamber enclosed within a refrigeration unit and a space external to the refrigeration chamber, the refrigeration unit having a refrigeration chamber and a closed loop refrigerant flow path configured to cool an interior of the refrigeration chamber, comprising: mounting a conduit in the refrigeration unit, the conduit having a thermally conductive body and first and second openings joined by a lumen passing therethrough; exposing the first opening to the refrigeration chamber; exposing the second opening to the space external to the refrigeration chamber to equalize the air pressure between the refrigeration chamber and the external space; and disposing a refrigerant flow coil, forming a portion of the closed loop refrigerant flow path and having an inlet side fluidly coupled to a compressor and an outlet side fluidly coupled to a condenser coil, to surround at least a portion of the thermally conductive body to transfer heat thereto. 8. The method of claim 7, wherein said thermally conductive body has a thermal conductivity at room temperature of at least 200 W/m·K. 9. The method of claim 7, wherein said thermally conductive body has a thermal capacitance at room temperature of at least 300 J/kg·K. 10. The method of claim 7, wherein said thermally conductive body has a mass of at least 0.300 kg. 11. The method of claim 7, wherein said thermally conductive body has a critical property ratio of at least 2000 KJ/m3·K. 12. The method of claim 7, wherein said thermally conductive body is in part comprised of a material selected from the group consisting of aluminum, copper, and steel. 13. A pressure equalization port in a refrigeration unit having a refrigeration chamber and a closed loop refrigerant flow path configured to cool an interior of the refrigeration chamber, comprising: means for equalizing the air pressure between the refrigeration chamber enclosed within the refrigeration unit and a space external to the refrigeration chamber; and a refrigerant flow coil, forming a portion of the closed loop refrigerant flow path and having an inlet side fluidly coupled to a compressor and an outlet side coupled to a condenser coil and surrounding at least a portion of the means for equalizing the air pressure, for transferring thermal energy thereto. 14. The pressure equalization port of claim 13, wherein said means for equalizing the air pressure has a thermal conductivity at room temperature of at least 200 W/m·K. 15. The pressure equalization port of claim 13, wherein said means for equalizing the air pressure has a thermal capacitance at room temperature of at least 300 J/kg·K. 16. The pressure equalization port of claim 13, wherein said means for equalizing the air pressure has a mass of at least 0.300 kg. 17. The pressure equalization port of claim 13, wherein said means for equalizing the air pressure has a critical property ratio of at least 2000 KJ/m3·K. 18. The pressure equalization port of claim 13, wherein said means for equalizing the air pressure is in part comprised of a material selected from the group consisting of aluminum, copper, and steel.