KEEP UP YOUR HVAC HEALTH WITH REGULAR HVAC INSPECTIONS

An marine HVAC inspection is a structured check-up of the system to ensure it’s safe, efficient, and ready for service. Think of it as a “health check” for the yacht’s climate control.

Here’s what it usually entails:

1. Visual & Operational Assessment

• Check system startup, operation, and shutdown cycles.

• Listen for unusual noises (rattles, grinding, humming).

• Check airflow strength at each vent.

• Verify thermostat/control panel settings and calibration.

2. Air Handling Side

• Inspect and clean or replace air filters.

• Check evaporator coils for dust, salt deposits, and corrosion.

• Inspect blower fans for dirt buildup or imbalance.

• Check ductwork for leaks, loose connections, mold, or moisture.

• Confirm return air paths are unobstructed.

3. Refrigeration Circuit

• Measure refrigerant pressures and temperature differential.

• Check refrigerant charge and look for signs of leaks.

• Inspect condenser coils (often seawater-cooled on yachts) for scaling or corrosion.

• Verify proper operation of expansion valves.

4. Seawater Cooling System (Marine-specific)

• Inspect strainers for debris, barnacles, or algae.

• Check raw water pumps for leaks, impeller wear, and proper flow.

• Inspect hoses, clamps, and through-hulls for corrosion or deterioration.

• Test for mineral scaling and marine growth in piping.

5. Electrical System

• Tighten all electrical connections.

• Inspect wiring insulation for heat damage or corrosion.

• Test contactors, capacitors, relays, and circuit boards.

• Check amperage draw against manufacturer specs.

6. Heating Components

• Test heating mode (heat pump, electric coil, or hydronic heater).

• Inspect heating elements for corrosion or burnout.

• Check for leaks in diesel/hydronic heating lines.

7. Safety Checks

• Verify the system shuts down on overheat or low water flow.

• Ensure condensate drains are clear to prevent flooding or mold.

• Check for refrigerant handling compliance.

• Inspect sacrificial anodes (if fitted) in seawater system.

✅ Result:
The technician provides a report listing the system’s current condition, any issues found, efficiency readings, and recommended repairs or preventive actions.