The 10-Point RTU Inspection: What It Finds and How It Cuts Energy Costs

The Silent Drain

Your HVAC system is quietly losing efficiency right now. Not dramatically. Not with a loud failure. Just a slow, consistent bleed that's adding 10–15% or more to your monthly energy bill.

Most facility managers have no idea this is happening. HVAC problems don't announce themselves. A refrigerant leak develops gradually. Coils accumulate biofilm. Condensation drains get blocked. Thermostat sensors drift. Ductwork develops micro-leaks. None of these trigger alarms. None of them cause immediate breakdowns. They just make your system work harder to achieve the same output.

The longer this goes undetected, the worse it gets. A system running at 85% efficiency is also degrading faster, heading toward the catastrophic failures that do trigger emergency calls.

A scheduled inspection stops this cycle before it starts.

Here's What EMC Checks

EMC's 10-point inspection protocol is designed to find every point where efficiency is bleeding away:

1. Refrigerant Levels: A leak or undercharge reduces system capacity and forces the compressor to work harder, increasing energy consumption and accelerating component wear. Overfilling creates excess pressure and can damage the compressor. EMC checks charge level against manufacturer specs and identifies leaks before they become critical.

2. Fans and Motors: Worn bearings increase friction. Imbalanced blades reduce airflow. Failing capacitors make motors work harder to start. A fan running at 90% efficiency looks like it's working fine until you compare performance data across sites. EMC tests motor operation and identifies components showing signs of degradation.

3. Condensation Drain Lines: Clogs mean water backs up into the system, promoting biological growth in the evaporator coil. Leaks mean water damages surrounding structures. Both problems reduce efficiency and create liability. EMC inspects drain lines for blockages and damage, identifies biofilm accumulation and recommends cleaning or UV-C treatment if needed.

4. Wiring Connections and Component Safety: Corroded connections increase electrical resistance, making motors work harder. Loose connections create arcing and fire risk. Improper grounding creates safety hazards. EMC inspects every electrical connection for corrosion, tightness and proper grounding.

5. Thermostat Operation: A thermostat that's drifted just 2–3 degrees can add 5–10% to your heating or cooling costs. Placement problems, dead batteries, poor calibration: These issues are usually invisible until someone actually tests the unit against a known standard. EMC tests thermostat accuracy and identifies drift or placement issues affecting system response.

6. Burners and Heat Exchangers: Burner scaling, heat exchanger corrosion and improper combustion all reduce efficiency and create safety risks. Visual inspection often misses these problems until failure occurs. EMC inspects combustion surfaces, tests heat exchanger integrity and identifies performance degradation.

7. Blower and Belts: Worn belts slip, reducing airflow. Belt misalignment accelerates wear. Blower wheels accumulate dust, reducing efficiency. A blower running at 80% efficiency still sounds like it's working: You won't notice until you see the performance data. EMC inspects belt condition, alignment and blower cleanliness.

8. Coils and Filters: Dirty evaporator coils force the system to work 15–30% harder. Clogged filters do the same. A visually clean filter might be partially blocked. A coil might look fine but be breeding biofilm inside where you can't see it. EMC inspects coil cleanliness, identifies biofilm, assesses filter condition and identifies candidates for UV-C treatment.

9. Ductwork for Leaks, Gaps and Damage: Leaky ducts can waste 15–30% of conditioned air into attics, crawlspaces or walls. Many leaks are in hard-to-see areas or small enough to be invisible during a casual walk-through. EMC inspects accessible ductwork, identifies visible leaks and identifies pressure zones likely to have hidden leakage.

10. Corrective Action Plan: Finding problems is only half the job. EMC documents everything we find, prioritizes fixes by impact and urgency and creates a clear action plan. What needs to be fixed immediately? What can be addressed in the next maintenance cycle? What can wait until next year?

The ROI Breakdown

Each of those ten points feeds into one outcome: Your system runs at full efficiency, consumes less energy, avoids emergency repairs and lasts longer.

When all of these issues are found and corrected together, the combined effect is significant. Energy costs can drop by up to 50% at sites where multiple efficiency problems have accumulated undetected. Even at sites in relatively good condition, systematic inspection typically identifies 10–15% in savings opportunities.

For a 30,000-square-foot building spending $15,000 annually on HVAC energy, a 20% improvement is $3,000 per year. A 50% improvement is $7,500. Those aren't theoretical. They're what happens when you stop letting silent efficiency losses run unchecked.

And that's just the direct energy savings. You're also eliminating the emergency repair calls that happen at peak rates. You're extending equipment life by 3–5 years in many cases. You're improving air quality and temperature consistency for tenants. You're reducing the burden on your facilities team of dealing with constant surprises.

The Portfolio Effect

The real power of systematic inspection comes when you apply it across an entire portfolio.

EMC uses the same inspection protocol at every location. That consistency means you can compare performance data across all your sites. You can see which locations are operating efficiently and which ones are outliers. You can identify patterns: Maybe all your 2005-era RTUs are showing similar refrigerant loss, or maybe a particular building's ductwork is underperforming compared to similar structures.

That visibility lets you make strategic decisions instead of reactive ones. You're not guessing about which buildings need attention. You're making decisions based on data.

It also means continuous improvement. The first year of inspections finds the big problems. Year two shows the impact of those fixes and identifies secondary efficiency opportunities. Year three shows whether your portfolio is trending toward more efficient operation or whether new problems are emerging. That's the difference between managing buildings and managing assets with accountability.

When to Schedule

The best time to schedule an RTU inspection is before something breaks. The second-best time is now.

If your buildings are more than 10 years old, you have efficiency problems already accumulated. They're there, and they're costing you money every month. EMC's inspection takes a few hours per unit and costs a fraction of what you're likely losing to efficiency drift in a single billing cycle.

Schedule a consultation. We'll show you exactly what we find and what it's costing you. Then you decide.

You have efficiency problems. The question is whether you find them and fix them or keep paying for them.