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Flagship FM12H – 12,000 BTU Marine Air Conditioner 230V Cool & Heat
The Flagship FM12H supports 12,000 BTU cool-and-heat operation through 230V power for marine cabin climate control requirements.
- 12,000 BTU capacity suits medium cabins.
- 230V input matches listed power systems.
- Cool and heat enable dual-mode operation.
- FM12H identifies the listed configuration.
- Marine conditioner manages cabin temperature.
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Description
When a 230V yacht needs both cabin cooling and seasonal heating, the Flagship FM12H provides 12,000 BTU/h in each operating mode. This self-contained marine air conditioner delivers 3.51 kW of cooling and uses reverse-cycle heating. The supplied application guidance identifies the unit for living spaces up to 500 cubic feet and compatible European shore-power or internal 230V generator systems.
Key Features
- Provides 12,000 BTU/h cooling and heating capacity.
- Operates on 230V power for compatible yacht systems.
- Uses reverse-cycle heating for seasonal onboard comfort.
- Delivers 400 CFM airflow through a six-inch duct.
- Uses seawater cooling with a specified 4.16 GPM flow.
- Combines stainless steel and cupronickel marine construction materials.
Technical Specifications
- Model FM12H, 230V variant
- Cooling capacity 12,000 BTU/h or 3.51 kW
- Heating capacity 12,000 BTU/h with reverse-cycle function
- 230V, 50/60 Hz, single-phase electrical supply
- Cooling current 4.9 A and heating current 6.3 A
- Maximum circuit breaker size 15 A with 22 A LRA
- R-410A refrigerant with hermetic rotary compressor
- Seawater flow 4.16 GPM through five-eighth-inch connections
- 400 CFM airflow with six-inch duct connection
- Dimensions 13.0 x 14.5 x 12.0 inches; weight 62 lbs
Application and Installation Notes
This FM12H variant is configured for compatible 230V shore-power profiles or internal generator systems. Confirm the vessel’s electrical configuration before ordering, then check the 13.0 x 14.5 x 12.0-inch mounting space, six-inch duct route, half-inch condensate drain, seawater plumbing, and service clearance. The application guidance lists a minimum generator capacity of 3.5 kW. The seawater circuit should support 4.16 GPM during operation.
Who This Unit Is Not Ideal For
This model is not intended for boats limited to 115V power unless a suitable 230V system is installed. It may also be unnecessary for buyers who only need cooling. Spaces larger than the stated 500-cubic-foot guidance require additional sizing review based on insulation, glazing, climate, and heat load.
Warranty and Product Summary
The Flagship FM12H 230V includes a five-year limited factory warranty. Its reverse-cycle operation, 12,000 BTU/h cooling and heating, 400 CFM airflow, and self-contained architecture suit compatible 230V yacht living spaces.
| Brand | Flagship Marine |
| Exact Model Code / SKU | FM12H (230V Variant) |
| Country of Origin | USA |
| System Architecture | Self-Contained Marine A/C System |
| Cooling Capacity - BTU/h | 12,000 BTU/h |
| Cooling Capacity - kW/Watts | 3.51 kW |
| Heating Capacity - BTU/h | 12,000 BTU/h |
| Reverse Cycle Heating Function | Yes |
| Electrical Voltage | 230V |
| Alternating Current Frequency | 50/60 Hz |
| Electrical Phase | Single Phase |
| Full Load Amps - FLA Cooling | 4.9 A |
| Full Load Amps - FLA Heating | 6.3 A |
| Locked Rotor Amps - LRA | 22 A |
| Max Circuit Breaker Size | 15 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 | 400 CFM |
| Duct Discharge Connection Diameter | 6 inches (152 mm) |
| Condensate Drain Connection Size | 1/2 inch (12.7 mm) |
| Physical Dimensions - Unit | 13.0 x 14.5 x 12.0 inches (330 x 368 x 305 mm) |
| Net Weight | 62 lbs (28.1 kg) |
| Chassis & Condenser Material | Stainless Steel Frame & Cupronickel Condenser Coil |
| Standard Factory Warranty | 5 Years (Limited) |
| Application & Sizing Guidance | Configured for European shore power profiles or internal 230V gen-sets; services living spaces up to 500 cu.ft, min generator 3.5 kW. |
What's in the Box
- 1x Flagship FM12H 12,000 BTU Self-Contained Marine Air Conditioner Unit (230V - Cool & Heat)
- 1x Multi-Stage Reverse Cycle Heat Pump Assembly
- 1x Heavy-Duty 100% Cupronickel Seawater Condenser Coil
- 1x High-Velocity Rotatable Centrifugal Blower Assembly
- 1x Deep-Draw Marine-Grade Stainless Steel Drain Pan
- 1x Washable Aluminum Mesh Return Air Filter
- 1x User Manual and Installation Guide
Flagship FM12H 230V AC FAQ
How much cooling does this unit provide?
Flagship FM12H provides a total of 12,000 BTU cooling. This self-contained setup is configured with a heavy-duty reversing valve to switch automatically into heat mode, compressing eco-friendly gas lines to keep luxury watercraft warm during freezing late-season offshore angling operations or chilly morning channel crossings.
What is the weight of this unit?
Flagship FM12H features an exact weight of 56 lbs. This balanced build includes a deep-draw marine-grade stainless steel condensate collector pan assembly to prevent dangerous bilge water accumulation and rust pooling without adding extreme ballast loads near the vessel waterline.
Where is Flagship FM12H applied onboard?
Flagship FM12H is ideal for small guest staterooms and mid-cabins. It delivers targeted multi-season climate control on motor yachts and sailing ships up to thirty-four feet, fitting easily under companionway stairs where ambient sound is muffled by existing acoustic marine insulation panel boards.
| Product Metric | Official Value |
|---|---|
| Voltage Circuit | 230V 50/60Hz |
| Amps Cooling | 4.8 Amps |
| Blower Style | Rotatable Centrifugal |
| Duct Rings | 5 inches |
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