🚩MINI SPLIT Red Flags
When should you service or replace a mini split?
Key Indicators Your Mini Split Needs Attention:
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Uneven or no cooling
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Water leaks from the indoor unit
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Weak or reduced airflow
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Unusual noises or vibrations
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Repeated error codes
Mini splits should run quietly and efficiently—so when performance drops, it’s a clear sign something needs attention. ETS provides fast diagnostics and dependable repairs to restore comfort and prevent further issues.
Uneven or No Cooling
Often caused by refrigerant issues, airflow restrictions, or failing indoor components.
Water Leaks From the Unit
Usually the result of a clogged drain line, faulty condensate pump, or poor drainage.
Weak or Reduced Airflow
Dirty filters, blocked coils, or blower issues can limit airflow and reduce cooling.
Unusual Noises or Vibrations
Clicking, buzzing, or rattling often signal loose parts or failing fan components.
Repeated Error Codes
Sensor faults, communication issues, or electrical problems can trigger frequent shutdowns.

MINI SPLIT AC.
ZONED COMFORT.
Engineered Temperature Solutions installs, services, and maintains commercial mini-split systems across Central Ohio, delivering quiet, efficient, zone-based cooling solutions sized for precise temperature control in offices, retail spaces, restaurants, and specialty rooms.

What is a Mini Split AC System?
Mini split AC systems—also called ductless mini splits—provide targeted, zone-controlled cooling without the need for traditional ductwork. Instead of conditioning the entire building at once, mini splits use compact indoor heads paired with an outdoor condenser to deliver cooling exactly where it’s needed.
For commercial buildings, this means precise temperature control, lower energy use, and quiet operation in offices, retail spaces, restaurants, conference rooms, server closets, and other areas that need individualized comfort. Because they’re flexible, easy to install, and highly efficient, mini splits are ideal for add-ons, remodels, hot-spot correction, and any space where ductwork isn’t practical.
Engineered Temperature Solutions designs and installs commercial-grade mini split systems across Central Ohio—making sure each zone is properly sized, professionally mounted, and built for reliable performance all year.

TARGETED ZONE COMFORT
Cool exactly where you need it—no wasted energy and no over-conditioning the rest of the building.
DUCTLESS FLEXIBILITY
Perfect for add-ons, remodels, hot spots, server rooms, and spaces where ductwork isn’t practical or possible.
QUIET, EFFICIENT PERFORMANCE
Variable-speed technology delivers smooth, quiet cooling with lower utility costs and consistent comfort.
FAST, CLEAN INSTALLATION
Compact indoor units mount quickly with minimal disruption, giving your building efficient cooling without major construction.

INSTALLATION & INTEGRATION
Professional setup for reliable, quiet performance.
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Mounting indoor heads and outdoor condensers
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Refrigerant line installation and brazing
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Electrical, drainage, and control integration
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Commissioning for proper airflow and cooling output
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Multi-zone system coordination and testing
Our Services
ETS installs and services commercial mini splits that provide targeted comfort, efficiency, and reliable performance for diverse commercial spaces.
PREVENTIVE MAINTENANCE
Routine care to keep every zone running efficiently.
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Cleaning filters and indoor coil surfaces
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Checking refrigerant pressures and line integrity
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Verifying airflow, temperature splits, and fan speeds
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Inspecting electrical components and connections
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Detailed performance reporting for every zone
All Your Cooling Needs.
One Reliable Team.












ETS HVAC Insights
Go inside our commercial HVAC projects and discover how ETS helps Central Ohio businesses upgrade systems, solve problems, and improve building performance year-round.
Frequently Asked Questions
A commercial mini split AC system is a ductless heating and cooling solution that uses one outdoor condenser connected to one or more indoor air handlers to provide zone-specific temperature control without traditional ductwork.
Commercial mini splits are built for higher loads, longer run times, multiple zones, larger electrical requirements, and integration with commercial controls and building management systems.
Mini splits are commonly used in offices, restaurants, retail stores, gyms, medical facilities, server rooms, warehouses, and specialty production spaces where zone control is required.
Mini splits are often the better choice when precise zone control is needed, when only specific areas require conditioning, or when adding ductwork is impractical—even though the outdoor condenser may still be installed on the roof in many commercial applications.
Yes. Most commercial mini split systems are heat pumps, meaning they provide both cooling in summer and heating in winter using the same equipment.
Depending on system size and manufacturer, one outdoor unit can support anywhere from 2 to 12 or more indoor zones, each with independent temperature control.
Yes. Mini split systems are among the most energy-efficient commercial cooling options because they use variable-speed compressors, eliminate duct losses, and condition only the zones in use.
Some installations do. Larger multi-zone systems may require panel upgrades, added circuits, or three-phase power depending on equipment capacity.
Routine maintenance includes filter cleaning, coil inspection, refrigerant pressure checks, electrical inspection, condensate drainage testing, and airflow verification.
With proper maintenance, commercial mini split systems typically last 12 to 20 years depending on usage intensity, environment, and service quality.
Common issues include refrigerant leaks, clogged condensate drains, sensor failures, communication errors between indoor and outdoor units, and airflow restrictions.
Yes. Mini splits are often used to supplement rooftop units, boilers, or central systems by adding targeted cooling or heating to specific zones.
Yes. Modern commercial mini splits are engineered for high humidity, heat, and cold weather operation, making them well-suited for Ohio’s seasonal extremes.
Yes. Engineered Temperature Solutions designs, installs, maintains, and repairs commercial mini split AC systems across Central Ohio, ensuring proper sizing, zoning, and long-term performance.
ETS provides engineered system design, code-compliant installation, preventive maintenance, and fast commercial repairs, giving businesses reliable zone cooling with expert technical oversight.
Need commercial mini-split services in Central Ohio? Request a quote or call (614) 289-8733 to get started.
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