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🚩MINI SPLIT Red Flags

When should you service or replace a mini split?

Key Indicators Your Mini Split Needs Attention:

  • Uneven or no cooling

  • Water leaks from the indoor unit

  • Weak or reduced airflow

  • Unusual noises or vibrations

  • 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.

dusctless mini split hvac systems used at commercial facility

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.

Smarter Cooling Starts Here

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.

mitshubishi electric mini split HVAC system

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.

commercial building ventilation

MINI SPLIT DESIGN & SIZING

Engineered layouts for targeted zone cooling.

  • Zone-by-zone load calculations

  • Equipment selection based on space use

  • Indoor head placement for balanced airflow

  • Refrigerant line routing and condensate planning

  • Integration with existing HVAC systems

INSTALLATION & INTEGRATION

Professional setup for reliable, quiet performance.

  • Mounting indoor heads and outdoor condensers

  • Refrigerant line installation and brazing

  • Electrical, drainage, and control integration

  • Commissioning for proper airflow and cooling output

  • 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.

  • Cleaning filters and indoor coil surfaces

  • Checking refrigerant pressures and line integrity

  • Verifying airflow, temperature splits, and fan speeds

  • Inspecting electrical components and connections

  • Detailed performance reporting for every zone

REPAIR & TROUBLESHOOTING

Fast diagnostics when a zone stops cooling.

  • Indoor head failures and control issues

  • Refrigerant leaks or line damage

  • Condensate drainage problems

  • No-cool or uneven cooling conditions

  • Resets, replacements, and full system restore

All Your Cooling Needs.
One Reliable Team.

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COOLING TOWERS

Cooling towers support critical cooling loads by dissipating heat at scale. ETS keeps your system clean, balanced, and performing at its best.

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CHILLERS

Chillers deliver high-capacity cooling for demanding facilities and process loads. ETS ensures efficient, dependable operation with expert service and maintenance.

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VRF SYSTEMS

VRF systems provide flexible, high-efficiency comfort across multiple zones from a single system. ETS supports long-term performance with precision diagnostics and system optimization.

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cold storage

REFRIGERATION

Commercial refrigeration systems protect inventory by maintaining precise, consistent temperatures in walk-ins, coolers, and blast freezers. ETS engineers reliability into every system to safeguard products and operations.

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warehouse HVAC
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church, worship center
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Office Buildings

Comfort fuels productivity. We keep offices balanced, quiet, and efficient — so your team can focus on what matters, not the thermostat.

Flexible Cooling for Any Layout

ETS delivers efficient mini split systems that provide targeted, quiet cooling exactly where your building needs it most.

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MINI SPLITS ENGINEERED FOR OHIO HEAT & HUMIDITY

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buckeye tree

Precision zone comfort built to perform in Ohio’s toughest summer conditions.

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prolon control panel, building automation system
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ROOFTOP HVAC SYSTEMS

RTU heating and cooling built to support busy commercial and industrial spaces.

COMMERCIAL REFRIGERATION

Reliable refrigeration service for walk-ins, reach-ins, and cold storage systems.

COMMERCIAL HEATING

Reliable commercial heating services for boilers, furnaces, heat pumps, and other high-demand heating equipment.

INDOOR AIR QUALITY

Professional IAQ solutions that improve comfort, reduce pollutants, and support occupant health.

BUILDING AUTOMATION

Smart automation that streamlines HVAC control and cuts energy waste.

SERVICE AREAS

Trusted HVAC support for commercial and industrial facilities across Central Ohio.

END-TO-END HVAC SYSTEMS

ETS delivers integrated commercial and industrial HVAC solutions spanning rooftops, heating, controls, ventilation, and IAQ for true whole-building efficiency.

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Ohio Mini Split Specialists

ETS delivers professional mini split installation, repair, and service for commercial and industrial facilities across Columbus and Central Ohio.

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

Q: What is a commercial mini split AC system?

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.

Q: How are commercial mini splits different from residential mini splits?

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.

Q: What types of commercial buildings use mini split 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.

Q: When is a mini split better than a rooftop unit (RTU)?

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.

Q: Can mini split systems heat and cool commercial spaces?

Yes. Most commercial mini split systems are heat pumps, meaning they provide both cooling in summer and heating in winter using the same equipment.

Q: How many zones can a commercial mini split system support?

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.

Q: Are commercial mini splits energy efficient?

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.

Q: Do mini splits require commercial electrical upgrades?

Some installations do. Larger multi-zone systems may require panel upgrades, added circuits, or three-phase power depending on equipment capacity.

Q: What maintenance do commercial mini splits require?

Routine maintenance includes filter cleaning, coil inspection, refrigerant pressure checks, electrical inspection, condensate drainage testing, and airflow verification.

Q: How long do commercial mini split systems last?

With proper maintenance, commercial mini split systems typically last 12 to 20 years depending on usage intensity, environment, and service quality.

Q: What are the most common problems with commercial mini splits?

Common issues include refrigerant leaks, clogged condensate drains, sensor failures, communication errors between indoor and outdoor units, and airflow restrictions.

Q: Can mini splits be integrated with existing HVAC systems?

Yes. Mini splits are often used to supplement rooftop units, boilers, or central systems by adding targeted cooling or heating to specific zones.

Q: Are commercial mini splits suitable for Ohio’s climate?

Yes. Modern commercial mini splits are engineered for high humidity, heat, and cold weather operation, making them well-suited for Ohio’s seasonal extremes.

Q: Does Engineered Temperature Solutions install and service commercial mini split systems?

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.

Q: Why choose Engineered Temperature Solutions for commercial mini split service?

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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