The Frigomar 609NT is the largest chiller on the NT inverter platform, rated at 180,000 BTU/h (≈15 tons). It uses a three-phase variable-speed BLDC compressor and a corrosion-resistant Cu-Ni 70/30 seawater condenser for demanding superyacht and commercial duty. Documented working limits keep the unit within safe seawater and engine-room conditions.
Key features
- 180,000 BTU/h (~15 tons) three-phase inverter chiller
- Cu-Ni 70/30 seawater condenser for corrosion resistance
- ECO mode: ~5.5 kW / 8 A input
- Variable-speed BLDC compressor, R410A refrigerant
- Defined seawater / engine-room working limits for reliable duty
Technical Specifications — 609NT (180,000 BTU/h)
| Cooling capacity | 180,000 BTU/h (≈15 tons) |
|---|---|
| Power supply | 400 VAC / 3 ph |
| Max power input | 12 kW |
| Max current | 17.3 A |
| ECO power input | 5.5 kW / 8 A |
| Compressor | BLDC variable-speed inverter |
| Refrigerant | R410A — 2.8 kg |
| Seawater condenser | Cu-Ni 70/30 |
| Dimensions (W×D×H) | 540 × 670 × 600 mm |
| Weight | 155 kg (342 lb) |
| Hydraulic connection | 1″¼ |
| Working limits | Seawater: winter >5 °C, summer <40 °C · Engine room <70 °C |
| Datasheet ref. | DS-NT-2022-08 |
Applications
Compatible Equipment
Frequently Asked Questions
How large a vessel is the 180,000 BTU/h chiller for?
At 180,000 BTU/h (~15 tons) the 609NT suits large yachts, superyachts and commercial vessels, typically as part of a chilled-water system feeding multiple air handlers.
Why a Cu-Ni 70/30 condenser?
Copper-nickel 70/30 is highly resistant to seawater corrosion, which improves durability in continuous marine service.
What are the seawater working limits?
The datasheet specifies seawater above 5 °C in winter and below 40 °C in summer, with engine-room temperature below 70 °C.