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How Ductless Systems Are Installed

If you have a room – or are planning a new space – in your house that needs air conditioning and/or heating, but the space isn’t or won’t be connected to ducts from your central HVAC system, you may want to opt for a ductless mini-split system. These heat pumps or A/Cs are also ideal for old, restored homes that can’t have central cooling and heating systems because the required ducts would be too cumbersome and necessitate changing the structural integrity of the house. Have you already considered getting a mini-split system for your home but are curious about how ductless systems are installed? It only involves a few simple steps, but first, let’s consider what these units consist of.

  • As with any split-system A/C or heat pump, the mini-split’s outdoor unit houses the compressor/condenser.
  • The indoor air handler (or air handlers) has an evaporator that completes the heat exchange process, and a blower that distributes air throughout the space.
  • A conduit that contains various necessary wiring and tubing for the system to operate.

The air handler is usually mounted toward the ceiling on the inside wall to deliver cool or warm air to the room or area where the mini-split is installed. The condensing unit is installed on the outside of the house right near the exterior wall. The two components are connected by a conduit that runs through a small hole in the wall. It contains power, refrigerant and condensate lines. Ductless mini-splits are designed for zone control, so one condensing unit can serve up to four inside air handlers, each with its own temperature control. If you’re not using a room, you can turn off that air handler.

To install a ductless mini system, first choose the right size unit to adequately and cost-effectively cool and/or heat the room or area. There’s a range of sizes available. When considering how ductless systems are installed, determine what level of electrical power is present, and make adjustments if needed. They should have a dedicated electrical line for the heat pump or A/C. They run most efficiently on 220-volt power, but some are made to run on 120 volts.

If you’d like to learn more about how ductless systems are installed, please contact us at Airwise Heating & Air Conditioning, Inc. and we’ll be happy to answer any of your questions. We provide superior HVAC service to Tarrant County, Fort Worth and Benbrook.