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Retro-Commissioning: DX Tune-up

The Next Level of HVAC Efficiency

Our tune-ups are proven to help facilities save money and energy, improve HVAC system performance and enhance indoor air quality and occupant comfort.

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The ComEd Energy Efficiency Program offers low-cost comprehensive tune-ups of HVAC packaged rooftop units and split systems to eligible businesses and public sector facilities. Each tune-up, conducted by a trained ComEd Energy Efficiency Program Service Provider, includes a thorough inspection and adjustment of the HVAC unit’s thermostat, economizer, refrigerant charge, coils and belts for optimal performance.

Eligibility Requirements

In order to qualify for our service, your facility must have:

  • Packaged HVAC or qualifying split systems
  • HVAC units in operating condition

Facilities that participate in the DX Tune-up offering are responsible for a payment equal to total contractor costs minus incentives. Your Service Provider will inform you of any required amount prior to service.

What's In A Tune-Up?

A Service Provider will thoroughly inspect and adjust the following for optimal performance:

  • Advanced thermostat. Fan systems are evaluated to ensure proper settings based on the occupancy schedule, ensuring that the unit will only run when it is needed. Manual thermostats are replaced with advanced thermostats at a low cost to you.
  • Refrigerant charge and coil cleaning. Assess your unit's refrigerant charge and airflow. A proper charge will extend the compressor's life and reduce energy consumption. The evaporator and condenser coils will be cleaned if necessary.
  • Cogged v-belts. Replacing smooth belts with cogged v-belts can help your HVAC blower motor run more efficiently and use less energy.
  • Economizer. Diagnose the current operating condition of the economizer and in most cases, repair or adjust it to provide as much "free cooling" from fresh outdoor air as possible.
  • Advanced Controls. A series of complementary upgrades that enable the HVAC system to respond to real-time ventilation needs and reduce energy use for heating, cooling, and supply fan motor operation.

Does the Tune-Up Include Repairs?

No, repairs are not included in the tune-up. Your Service Provider will advise you if your HVAC unit needs repairs that fall outside the scope of a DX Tune-up.

Retro-Commissioning: DX Tune-up

Focus on Priorities

Utilizing a Service Provider to complete the tune-up will free time for your maintenance staff to focus on other priorities.

Ready to Make a Change?


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Head over to Business Types or Public Sector for energy-reducing ideas specific to your organization.

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Give Us a Call

Call us at 1-855-433-2700 during normal business hours to speak with a ComEd Energy Efficiency Program representative.

The ComEd Energy Efficiency Program is funded in compliance with state law.

Offers are subject to change.

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