Flagship FM18RLP – 18,000 BTU Marine Air Conditioner 230V Cool Only Low Profile
Flagship FM18RLP specifies 18,000 BTU cool-only capacity with 230V power in a low-profile marine air conditioner.
- 18,000 BTU capacity suits larger interiors.
- 230V input guides system compatibility.
- Cool-only operation excludes heating functions.
- Low-profile design suits shallow installations.
- Dedicated output supports cabin cooling.
$2,320.50
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For boats that only need cooling and want to keep the system as simple as possible, the Flagship FM18RLP Cool Only in 230V trim strips out the heating function entirely — same 18,000 BTU capacity, same 11-inch low-profile build for tight installation spaces, just without the added electric heat components.
Why Choose the Flagship FM18RLP Cool Only
Skipping the heat function means fewer components that can eventually need service — a reasonable choice for boats that cruise exclusively in warm climates with no real heating need. If your plans ever take you into cooler weather, the Cool & Heat version of this same low-profile platform covers that instead, at the same footprint and installation requirements.
This 230V configuration draws notably less current than the 115V Cool Only version for the same cooling output, which is worth factoring in if your boat’s 230V circuit capacity is more readily available than 115V.
What to Know Before Installing
- Made-to-order with a typical 5-6 day lead time
- Ships via LTL freight to a commercial address only
- Since this unit has no heat function, confirm it matches your climate needs before ordering
- An optional install kit is available separately
Product Specifications
Product Specifications
| Brand | Flagship Marine |
|---|---|
| Exact Model Code / SKU | FM18RLP (230V Cool Only) |
| Country of Origin | USA |
| System Architecture | Self-Contained Low-Profile Marine A/C System |
| Cooling Capacity - BTU/h | 18,000 BTU/h |
| Cooling Capacity - kW/Watts | 5.27 kW |
| Heating Capacity - BTU/h | 0 (Cool Only) |
| Reverse Cycle Heating Function | No |
| Electrical Voltage | 230V |
| Alternating Current Frequency | 50/60 Hz |
| Electrical Phase | Single Phase |
| Full Load Amps - FLA Cooling | 6.9 A |
| Locked Rotor Amps - LRA | 32 A |
| Max Circuit Breaker Size | 20 A |
| Refrigerant Type | R-410A |
| Compressor Type | Hermetic Rotary |
| Seawater Water Flow Rate | 4.16 GPM (250 GPH) |
| Seawater Inlet Pipe Size | 5/8 inch (16 mm) |
| Seawater Outlet Pipe Size | 5/8 inch (16 mm) |
| Evaporator Airflow Capacity | 550 CFM |
| Duct Discharge Connection Diameter | 6 inches (152 mm) |
| Condensate Drain Connection Size | 1/2 inch (12.7 mm) |
| Physical Dimensions - Unit | 12.0 x 21.0 x 15.0 inches (305 x 533 x 381 mm) |
| Net Weight | 71 lbs (32.2 kg) |
| Chassis & Condenser Material | Stainless Steel Frame & Cupronickel Condenser Coil |
| Standard Factory Warranty | 5 Years (Limited) |
| Application & Sizing Guidance | International 230V low-height build optimal for commercial or pleasure hulls operating in hot climates needing dedicated cooling profiles up to 1,000 cu.ft, min generator 4.5 kW. |
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