BlueCool VX 36M
Webasto BlueCool VX 36M — Variable-speed modular marine chiller for yachts; R32 refrigerant; combinable up to 216 kBTU/h system capacity; EER up to 5.6.
Inspector Detail
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Common issues
- R32 refrigerant leak at brazed joints or Schrader valves
- Seawater condenser fouling reducing heat rejection and triggering high-pressure trips
- Variable-speed compressor/inverter faults from marine electrical supply quality issues
- Seawater pump impeller or seal wear reducing condenser flow
- Condensate management issues - drain blockage or pan overflow
- Master/slave control communication faults on combined multi-unit systems
Inspection checklist
- Refrigerant circuit leak check, particularly at brazed joints
- Seawater flow rate and condenser cleanliness check
- High/low pressure safety cutout function test
- Seawater pump and strainer inspection
- Compressor current draw and inverter fault log check
- Condensate drain clearance and drip pan level check
- Electrical connection corrosion check
Service intervals
| Seawater strainer cleaning | weekly to monthly |
| Refrigerant leak check | annually, more frequently where local R32 (A2L, mildly flammable) charge/ventilation regulation requires |
| Condenser cleaning | annually or as fouling indicates |
| Seawater pump service | annually per manufacturer's manual |
Typical wear limits
| Refrigerant charge deviation | any deviation from the manufacturer's nameplate charge should prompt leak investigation rather than a simple top-up |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Seawater pump
- Filter drier
- High/low pressure safety switches
- Compressor (inverter-matched, long lead time)
Safety
- R32 is classified A2L (mildly flammable, lower toxicity) - ventilation and ignition-source control matter more than with A1 refrigerants; follow the manufacturer's installation ventilation requirements
- Refrigerant pressure hazard during service
- Electrical hazard at inverter/compressor terminals
Class survey
Not normally a classed item on its own. Where R32 charge quantity and machinery space ventilation intersect with flag/class environmental or refrigerant-handling requirements, confirm compliance with the applicable F-Gas or equivalent regulation and technician certification records.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Sea-water strainer and heat exchanger: inspect for marine fouling, corrosion, and blockage; clean titanium or cupro-nickel condenser surfaces at each service interval
Refrigerant circuit: check operating pressures and temperatures, inspect for leaks at flare fittings and brazed joints, verify refrigerant charge (R32 or R410A)
Chilled-water circuit: verify flow rate and pressure drop, check pump operation, inspect for air locks, test glycol concentration (freeze/corrosion protection)
Compressor and electrical: inspect inverter drive, check running current against nameplate, verify soft-start or variable-speed control board, inspect wiring and terminals for corrosion
Condensate drainage: clean condensate pans and drain lines on air handlers (A-Series / F-Series); test Instant Drain system if fitted
Filter inspection: replace G3 or F7 air filters in FreshAir units; clean evaporator coil fins as needed
Vibration isolation and mountings: check anti-vibration mounts, hose connections, and flexible pipe couplings for wear or deterioration
Controls and safety devices: test high/low pressure cut-outs, water-flow switches, and thermostatic controls; update firmware on BlueCool MyTouch / BlueCool Connect gateway if applicable
Type-general inspection and maintenance points for this equipment category — not model-specific.
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