Make up air systems and methods

A building, comprising:

• a plurality of individually temperature controlled spaces that are isolated from each other;
• wherein each of the spaces comprises a make-up air unit, comprising:
• an first air inlet defining a portion of a first path and a portion of a second path;
• a second air inlet defining a third path that joins with the first path;
• a dehumidification unit disposed within the first path
• an air conditioner with a portion of the air conditioner disposed within the first path downstream of where the third path joins the first path and a portion of the air conditioner disposed within the third path;
• a first air outlet, wherein the first path exits the make-up air unit;
• and
• a second air outlet wherein the second path exits the make-up air unit;
• wherein the air conditioner is disposed on a stand;
• wherein the dehumidification unit is disposed below the air conditioner.

A make-up air unit, comprising:

• an first air inlet defining a portion of a first path and a portion of a second path;
• a second air inlet defining a third path that joins with the first path;
• a dehumidification unit disposed within the first path
• an air conditioner with a portion of the air conditioner disposed within the first path downstream of where the third path joins the first path and a portion of the air conditioner disposed within the third path;
• a first air outlet, wherein the first path exits the make-up air unit;
• a second air outlet wherein the second path exits the make-up air unit;
• a first drain pan disposed below the air conditioner and above the dehumidification unit;
• and
• a second drain pan disposed below the dehumidification unit;
• wherein the air conditioner is disposed on a stand;
• wherein the dehumidification unit is disposed below the air conditioner;
• wherein the air conditioner and dehumidification unit are in a series configuration, such that air traveling on the first path that passes through the dehumidification unit later passes through a portion of the air conditioner;
• wherein the first drain pan comprises a drain connection and the second drain pan comprises a drain connection, wherein the drain connection of the first drain pan is bigger than the drain connection of the second drain pan;
• and
• wherein the dehumidification unit comprises a refrigeration circuit comprising an evaporator coil disposed in the first path upstream of where the third path joins the first path, a condensing coil, and a compressor, wherein the condensing coil of the dehumidification unit is disposed in the first path upstream of where the third path joins the first path.