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Blue-Airco 18,000 BTU - Self Contained Unit VSD - SDC18V48
DC marine AC SDC18V48 — 48 VDC, variable speed, 18,000 BTU/h. Low power draw, efficient cooling—ideal for smaller vessels and off-grid setups.
Reference: SDC18V48
$8,833.00
Available for local pickup at our Miami or Fort Lauderdale location
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SDC18V48 Marine Air Conditioner – 48 VDC Variable Speed, 18,000 BTU/h
Experience efficient, quiet air conditioning aboard small vessels with our DC Variable Speed Self-Contained Marine Air Conditioner — SDC18V48. This full DC unit delivers up to 18,000 BTU/h of cooling capacity at 48 VDC, making it ideal for boats that rely solely on battery power or off-grid systems. Thanks to its variable speed functionality, it consumes minimal power in ECO mode, extending battery life and increasing sustainability.
Built as a fully self-contained system, the SDC18V48 simplifies installation and reduces maintenance by combining compressor, condenser, and evaporator in one compact unit. Its DC operation and efficient design allow for comfortable marine air conditioning even on smaller vessels, without requiring heavy AC infrastructure.
Available alongside other voltage models (SDC10V24, SDC10V48, SDC12V12, SDC18V24, SDC18V48), the SDC18V48 is perfect for boaters seeking a low-power, high-efficiency marine cooling solution.
Quality
The units are very reliable employing high quality components and BLDC motors suitable for severe working conditions (min seawater temperature in heating 2°C, max seawater temperature in cooling 45 °C). The units are designed and manufactured in Italy.
Energy saving
The BLDC motors together with highly efficient heat exchangers and electronic expansion valve minimise the power consumption in every working condition. Our advanced technology enables our customers to reduce their environmental impact and contributes to a more sustainable society.
No peak current at start
The starting current is very low thanks to the accurate control of the starting compressor torque. Compressor starts very smoothly at low frequency.
Comfort
The electronic control and variable frequency drive allow to finely adjust the cooling and heating capacity maintaining the desired ambient temperature without fluctuations. BLDC motors, sound insulations and accurate design of ventilation sections make the units very silent in every working condition.
Easy installation
Thanks to the compactness and low weight the units are suitable for all types of boat, new constructions and refitting.
| Model | SDC18V48 |
|---|---|
| Width | 470 mm / 18.5” |
| Height | 300 mm / 11.8” |
| Depth | 330 mm / 13” |
| Weight | 28 kg / 61.7 lb |
| Electrical Box Dimensions | 250 × 250 × 109 mm / 9.8” × 9.8” × 4.3” |
| Voltage | 48VDC |
| Max Cooling Capacity | 5.3 kW / 18,200 BTU/h |
| Max Heating Capacity | 5.5 kW / 18,900 BTU/h |
| Max Input Power | 1280 W |
| Max Current | 27 A |
| Current ECO Mode Cooling | 5 A |
| Input Power ECO Mode Cooling | 220 W |
| Max Seawater Flow-Pressure Loss | 1.5 m³/h – 5.4 m H₂O / 6.6 gpm – 17.7 feet H₂O |
| Min Seawater Flow-Pressure Loss | 1.3 m³/h – 4.2 m H₂O / 5.7 gpm – 13.8 feet H₂O |
| Min Air Exit Duct Diameter | 152 mm / 6” |
| Seawater Connection | 19 mm / 3/4” |
| Drain Connection | 16 mm / 1/2” |
| R410A Refrigerant Charge | 0.38 kg / 13.2 oz |
PERFORMANCE
| Self-Contained Unit | Compressor Speed | Cooling Capacity (BTU/h) | Input Power (W) | Input Current (A) |
|---|---|---|---|---|
| SDC18V48 | Max | 18,200 | 1100 | 23 |
| Med | 12,600 | 600 | 13 | |
| Min (ECO) | 5,000 | 220 | 5 |
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