Ductless mini-split systems are a great solution to a wide variety of installation challenges, giving
contractors the ability to put air conditioning (and heat with heat pump models) in locations that
previously seemed impossible. They’re ideal when installing ductwork is diffi cult, prohibitively
expensive, or simply impractical. Both residential and commercial structures, new construction
and existing buildings, are candidates for mini-splits.
Basically a mini-split does away with the need for ductwork. Like a regular split system A/C or
heat pump, the condenser is located outdoors; one or more air handlers are placed indoors. The
two are connected by electrical, refrigerant, and condensate drain lines that run through a small
hole in an exterior wall, generally 3” in diameter or less.
In addition to eliminating the need for ducting, one of the other big advantages of mini-split
systems is true zone control. The air handler is dedicated to the room being conditioned and
is controlled by a wireless remote. That room can be kept at a temperature and humidity level
different from the rest of the house or building.
Multi-zone systems for two, three or four rooms (or one large space) feature a single condenser
that handles two, three or four air handlers. Each air handler is independently controlled, with its
own remote and electronics-based climate controls to regulate temperature and humidity levels,
as well as air fl ow. Units in a bedroom and a home offi ce, for instance, can be programmed
for different hours of operation with the 24-hour timer, or two classrooms situated side by side
can be set at different temperatures.
Mini-split systems have the fl exibility to fi t virtually anywhere and with SEER ratings up to 20.0,
they’re also economical to operate.
Where can you use a mini-split?
Common applications include:
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Historic homes (the aesthetics of the
exterior are maintained)
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Homes with hydronic heat
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Residential additions such as a
sunroom or bedroom
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Vacation homes and cabins
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Schools (individual classroom control)
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Church sanctuaries and fellowship halls
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Nursing homes and hospitals
Ductless Mini-Splits
The Comfort Solution
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Restaurants
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Remote offi ces such as those inside
a warehouse or factory
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Utility transfer stations
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Arena sky boxes
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Computer rooms (temperature/
humidity can be different than the
rest of the building)
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ATMs and offi ce lobbies
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Ductless M
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