Refrigerator appliance having a dual-flow sealed system and methods of operating the same

A refrigerator appliance comprising:

• a cabinet comprising an internal liner defining a freezer chamber and a fresh food chamber;
• a fresh food door attached to the cabinet to selectively restrict access to the fresh food chamber;
• a freezer door attached to the cabinet to selectively restrict access to the freezer chamber;
• and
• a sealed refrigerant system comprising
• a refrigerant loop,
• a compressor disposed along the refrigerant loop,
• a condenser disposed along the refrigerant loop downstream from the compressor,
• a multi-path valve disposed along the refrigerant loop downstream from the condenser,
• a freezer evaporator mounted at the freezer chamber and disposed along a first branch path in selective fluid communication between the multi-path valve and the compressor,
• a fresh food evaporator mounted at the fresh food chamber and disposed along a second branch path and downstream from the first branch path in selective fluid communication between the multi-path valve and the compressor,
• a bypass valve disposed along the refrigerant loop in fluid communication between the compressor and the condenser, and
• a bypass line extending from a bypass inlet at the bypass valve to a bypass outlet disposed on the refrigerant loop downstream from the condenser such that the bypass line is in fluid communication with the bypass valve to selectively direct a portion of refrigerant around the condenser.