At Caledonian Mechanical Inc., we are committed to delivering in-depth, professional,
and efficient commercial HVAC maintenance services. A well-maintained cooling
system is essential for energy efficiency, equipment longevity, and uninterrupted
operation—especially in commercial spaces where a sudden breakdown can lead to
costly downtime.
Our Planned Maintenance (PM) program is designed to prevent unexpected failures,
reduce excessive power usage, and maximize system efficiency. We typically
recommend two cooling and two heating maintenance visits per year, ensuring that
every component is operating at peak performance before the start of each season.
With each visit, our trained technicians follow a structured and detailed checklist,
carefully inspecting, testing, and recording critical system parameters. After each
service, our customers receive a digital maintenance checklist with pictures of
discovered issues, along with a detailed breakdown of proposed repairs or solutions.
Step-by-Step Breakdown of Our Cooling Planned
Maintenance
Each cooling maintenance check consists of several key tests, inspections, and
cleanings to keep your HVAC system running at its best.
1. Temperature & Refrigerant Charge Verification
Measure and record the cooling temperature differential across the evaporator
coil.
Check and record superheat or subcooling to verify the correct refrigerant
charge (if ambient temperatures are above 68°F).
Ensure refrigerant levels are within manufacturer specifications to avoid efficiency
losses or compressor strain.
2. Electrical Component Testing & Safety Inspection
Measure voltage and current readings for all major electrical components:
• Blower motor
• Compressor
• Condenser fan motors
Inspect all electrical connections for signs of overheating, dark marks,
or loose wires.
Perform a smoke detector test to ensure compliance with safety
regulations.
3. Airflow & Static Pressure Testing
Measure static pressure to confirm proper airflow through the system and
ductwork.
Identify and address any excessive friction or restrictions that may be affecting
performance.
4. Coil Cleaning & Condensate Drain Maintenance
Clean both evaporator and condenser coils with water (additional chemical
cleaning available if required).
Flush and clear the condensate drain pan and pipe, ensuring proper drainage
and preventing water damage.
Insert condensate pan treatment capsules to prevent bacteria growth in
stagnant water.
5. Economizer Testing & Lubrication
Inspect, test, and lubricate the economizer motor to ensure proper fresh air
intake and ventilation.
Verify that the economizer operates from 0% to 100%, adjusting as necessary for
efficiency.
6. Capacitor & Fan Belt Inspection
Test all run and start capacitors—capacitors under 6% of their rated value are
recommended for replacement.
Check and replace fan belts, ensuring correct tension and torque calibration on
the blower motor.
7. Air Filter Replacement & Ductwork Inspection
Replace air filters and clean any fresh air filters.
Inspect all ductwork for signs of wear, leaks, or poor insulation that could affect
efficiency.
8. Thermostat & Sensor Calibration
Test and calibrate thermostats and climate sensors to ensure accurate
temperature control.
Verify that all control sequences are functioning correctly.
9. Detailed Reporting & Recommendations
Record system model numbers, sizes, locations, and areas served within the
building.
Provide a digital checklist report with pictures of identified issues.
Offer detailed repair recommendations, complete with a breakdown of parts,
costs, and expected benefits.
Why Choose Caledonian Mechanical Inc. for HVAC Planned Maintenance?
Preventative Maintenance Saves Money – Avoid costly emergency repairs and
unexpected downtime.
Energy Efficiency Optimization – Reduce power consumption and keep
operating costs low.
Prolonged Equipment Lifespan – Proper care extends the service life of your
HVAC system.
Transparent Reporting – Our digital checklist provides full visibility into your
system’s health.
Tailored Maintenance Plans – We customize our maintenance services to fit your
business’s specific needs.
Regular planned maintenance is the key to a reliable, energy-efficient, and longlasting HVAC system. Contact Caledonian Mechanical Inc. today to schedule a
professional cooling maintenance check and keep your system in peak condition!
Call us at 559-753-1775
Visit us at www.caledonianhvac.com
Caledonian Mechanical Inc. – The HVAC Experts You Can Trust!
One time tune up for two residential units per home with filter replacement.
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