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Ductless System FAQs

Since many people are unfamiliar with ductless technology, there are numerous heat pump and air conditioner questions that arise when comparing mini-splits to conventional HVAC systems. In addition to the HVAC FAQ list provided below, we encourage you to contact the Mitsubishi Electric contractors on this website to learn more about the many benefits of a single- or multi-zone ductless heat pump or air conditioner.

Air Conditioner FAQ

Here are some of the most commonly asked questions we encounter and their answers:

How do Ductless Split Systems Work?

Ductless air conditioners are very dependable since they operate according to the principles of the refrigeration cycle, which is a technology that has been in use for over 100 years. In a ductless system, electrical wiring and copper tubing connect the indoor air handler to the outdoor condenser. The compressor pumps refrigerant from the outdoor unit into the evaporator coil where heat is extracted from the living area and replaced with cool, conditioned air. The indoor temperature is managed by a hand-held or wall-mounted remote control unit.

What Applications are Appropriate for a Ductless System?

A ductless split system provides incomparable versatility when compared to conventional central HVAC equipment. Architects and engineers often find their design options limited by the need for soffits, plenums, registers and other structural impediments associated with a traditional ducted installation. Ductless split systems are appropriate for a variety of applications including room additions, vacation homes, basement conversions, media rooms, multi-family homes and new construction.

What are the Advantages of a Mitsubishi Electric Ductless System?

A central heat pump or air conditioner has a specific BTU capacity that must be precisely engineered to accommodate the varying load conditions experienced throughout the year. In most homes and offices, there is at least one room that is significantly warmer or colder than the rest of the building. Ductless heating and air conditioning offers zoned comfort, so the temperature in each room can be tailored to fit the specific preferences of the occupant.

Ductless systems are also less costly to operate because the inefficiency associated with long duct runs is eliminated. In fact, the Department of Energy estimates that the typical home loses about 20 percent of the air that moves through the duct network due to leaks, gaps and loose connections. In addition, ductless mini-splits deliver point-of-use heating and cooling directly into the targeted area. Unused rooms can be kept at a different temperature than the rest of the home, which will lower monthly heating and cooling utility costs.

How Efficient are Ductless Air Conditioning Systems?

Ductless split systems offer the highest SEER rated efficiencies in the heating and cooling industry. Depending on the age of your current central air conditioner, the savings realized through the installation of a multi-zone ductless system can be as much as 50 percent annually. Ductless mini-splits employ inverter technology, which regulates the operation of the compressor for maximum energy savings.

What Type of Controls are Appropriate for a Ductless System?

Homeowners have the option of using a convenient remote control or installing a wall-mounted controller. Ductless controls are simple to use and allow for precise fan and temperature settings. Some controls incorporate programmable features for even better efficiency and comfort.

Who Can I Talk to for More Information?

To learn more about Mitsubishi Electric Cooling & Heating ductless air conditioners, be sure to contact any of the professionals listed on this website. Just use the locator box at the top of the page to find a contractor near you.

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