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SCI-MHVAC-CASE-001
Marine HVAC Condition Assessment
Riva 75 ft | Dometic Condaria chilled-water system
ASSESSMENT
A system-wide inspection of weak and uneven cooling. Refrigerant, electrical, water-side and air-side evidence was assessed together before the repair scope was set.
The evidence supported a staged corrective program rather than immediate full-system replacement, followed by controlled commissioning and measured close-out readings.
- 108,000
- BTU/h central chiller
- 3
- Compressor circuits
- 12
- FCUs reported
EQUIPMENT DETAILS
System profile
- Yacht
- Riva 75 ft motor yacht
- Chiller
- Dometic / Condaria SLY S75/16
- Main capacity
- 108,000 BTU/h
- Supplementary unit
- Dometic self-contained unit, 16,000 BTU
- Distribution
- 12 fan-coil units reported
- Refrigerant record
- R407C nameplate; later R22 replacement compressors recorded
INSPECTION SCOPE
What was checked
- 01Three operating compressor circuits and refrigerant-side readings
- 02Condenser, heat exchanger, strainers, pumps and associated plumbing
- 03Control panel, terminals, harnesses, capacitors and protective covers
- 04Representative fan-coil units, airflow, temperatures, filters and coils
FIELD EVIDENCE
What the inspection showed
- Condenser fouling and marine growth reduced heat rejection.
- Weak circulation and leaking plumbing contributed to unstable performance.
- Corroded electrical connections created a separate reliability and safety risk.
- Air-side fouling matched the low and uneven airflow measured across the zones.
PUBLISHED REPORT
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