Collection: Evaporator Coils

Welcome to the South Mini Splits collection for Evaporator Coils. We feature high-efficiency systems from industry leaders like Cooper & Hunter, OLMO, MRCOOL, and Bravo.

These essential, discrete, and efficient units are the ideal solution for completing a multi-zone system, replacing a damaged indoor unit, or pairing with a new condenser.

💡Why Choose South Mini Splits for Your 30,000 BTU System?

✅ Wholesale Pricing: Competitive rates on top-tier HVAC equipment.

✅ USA-Based Support: Expert help from sizing to post-install troubleshooting.

✅ Free Shipping Over $300: Get your complete system delivered fast.

What is Evaporator Coils

An Evaporator Coil, typically contained within the indoor air handler unit, is the most crucial component for delivering conditioned air directly into your space. Its primary job is to facilitate heat exchange and dehumidification. Selecting the correct coil capacity is as critical as sizing the outdoor condenser, as the coil's BTU rating determines the amount of heat and moisture it can remove from a specific room. Choosing a coil requires precision to avoid system damage and deliver efficient comfort.

For customers completing a multi-zone installation or seeking to replace an indoor unit, the evaporator coil selection dictates the system's performance in that specific area:

  • Capacity Matching: Coil sizes range from small 6k BTU to large 36k+ BTU. Matching the coil's BTU capacity precisely to the room's square footage prevents short cycling—where the unit constantly turns on and off. A correctly sized coil runs for longer, steadier cycles, which provides superior dehumidification and comfort.
  • Component Versatility: Evaporator coils are housed in various indoor styles, including the common wall-mounted unit, discrete ceiling cassettes, and Concealed Ducted Air Handlers, offering flexibility to meet any aesthetic or installation requirement.
  • Targeted Comfort: In a multi-zone system, each evaporator coil acts independently, allowing you to set customized temperatures for different areas like a cold office or a hot sunroom, ensuring all occupants are comfortable.

Inverter technology is important for all mini split indoor units, but it is essential for maximizing the evaporator coil's efficiency and comfort delivery.

  • Variable Refrigerant Flow: Unlike older ACs, modern inverter systems continuously modulate the flow of refrigerant to the coil. This allows the coil to operate at partial capacity, providing a gentle, consistent output rather than blasts of cold air.
  • Energy Savings: During periods of mild weather, the variable refrigerant flow means the coil only extracts the minimal heat necessary to maintain the set temperature, saving significant energy compared to an older fixed-speed system.

Effective air distribution is a critical component when dealing with the substantial comfort area managed by an evaporator coil. For traditional wall-mounted units, strategic placement on the most centralized wall maximizes airflow. For customers seeking maximum comfort and a clean, hidden aesthetic, a Concealed Ducted Air Handler is advised; this unit pairs its evaporator coil with short ductwork, allowing conditioned air to be distributed through inconspicuous vents across multiple rooms (e.g., a master suite and its large closet), all powered by the single, highly efficient indoor unit. Providing this detailed "Pro Insight" reinforces our position as an expert and gives the customer the essential confidence they need to select the right coil for a complex, high-performance HVAC system.

FAQs/Frequently Asked Questions

Q: What is the main function of the evaporator coil in a mini split?

A: The evaporator coil's main function is to facilitate the heat exchange process indoors. It converts liquid refrigerant into a gas by absorbing heat from the room air, simultaneously dehumidifying the air as moisture condenses on its cold surface.

Q: Can I use an Evaporator Coil from one brand with another brand's condenser?

A: No. To maintain efficiency, ensure compatibility, and honor warranty coverage, the evaporator coil (indoor unit) and the condenser (outdoor unit) must be matched components from the same manufacturer and series.

Q: What types of indoor units house the Evaporator Coil?

A: The coils are housed in various indoor unit styles, including: wall-mounted units (the most common), ceiling cassettes (flush with the ceiling), and concealed ducted air handlers (hidden in the ceiling or wall cavity for use with vents).

Q: Why is the BTU capacity of the Evaporator Coil important?

A: The capacity (e.g., 12,000 BTU) of the coil must be correctly sized to the room's square footage and thermal load. An undersized coil will fail to cool the room, and an oversized coil will cause the unit to short cycle, leading to poor humidity removal and discomfort.

Q: How does Inverter Technology affect the Evaporator Coil?

A: The inverter condenser modulates the flow of refrigerant to the evaporator coil. This means the coil can operate at partial capacity, ensuring the air temperature remains steady, providing superior dehumidification and comfort.