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Mermaid M9 – Cool & Reverse Cycle Unit 9,000 BTU’s 110V
Mermaid M9 Cool & Reverse Cycle – 9,000 BTU (110V) features a premier 4-cycle thermal exchange design specifically for the North American marine market. Delivering 9,000 BTUs of cooling and heat recovery, this model utilizes a high-efficiency reversing valve and a specialized condensate management system, providing the thermal stability and whisper-quiet operation preferred for luxury sailboat and motor cruiser interiors.
- Thermal Output: 9,000 BTU/hr Cooling and Reverse-Cycle Heat.
- System Layout: Compact 110V self-contained stainless steel frame.
- Power Requirements: 110V AC / 60Hz Single Phase.
- Vessel Integration: Perfect for master suites and salons.
- Warranty Coverage: Mermaid 5-year limited factory protection.
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Description
Mermaid M9 9,000 BTU – Efficient marine climate control unit
Mermaid M9 delivers peak performance for USA coastal waters as an efficient marine climate control unit. This 110V version is optimized for domestic vessel power systems, offering high-performance reverse cycle heating and cooling for mid-sized cabins. The high-efficiency blower assembly is designed to overcome static pressure in complex ductwork to ensure even air distribution. Precision internal components are selected for their ability to maintain stable operating pressures during extended offshore passages.
Mermaid M9 architecture provides a reliable Mermaid 110v 9000 btu unit for existing vessel configurations. The simple mechanical interface allows for easy integration with standard marine digital thermostats and centralized vessel control systems. Every unit is built with a focus on reducing the total amperage draw to protect the ship’s battery bank and inverter systems. Marine-grade insulation on the evaporator coil prevents condensation buildup and protects surrounding cabin woodwork.
Key Technical Specifications
- Mermaid M9 efficient 110V architecture.
- Efficient marine climate control unit.
- Corrosion resistant marine grade materials.
- Reliable 9,000 BTU thermal output.
- Reverse cycle heat and cool.
- Integrated high velocity air blower.
- Mermaid 110v 9000 btu unit.
- ABYC compliant marine electrical construction.
Mermaid M9 9,000 BTU (110V) Cool & Reverse Specs
| Model Category | Self-Contained Unit |
| Cooling Capacity | 9,000 BTU/h |
| Heating Capacity | Yes (Reverse Cycle) |
| Voltage / Frequency | 110V | 60Hz |
| Running Current (Avg) | 7.8A (@110V) |
| Startup Current (LRA) | 32A |
| Duct Size | 5" (127 mm) |
| Weight | 21.8 kg (48 lbs) |
| Advantage | Standard power for US sailboat shore power |
Mermaid M9 9,000 BTU Reverse Cycle (110V) Service & Performance Guide
What are the power requirements for Mermaid M9 110V?
The Mermaid M9 110V (60Hz) is the standard model for North American vessels, requiring a 15A or 20A circuit breaker. It draws approximately 8.5 Amps during cooling operation and is compatible with most small marine generators. Ensure your shore power cord is in good condition to prevent voltage fluctuations that could damage the 9,000 BTU compressor motor.
Does the Mermaid M9 110V provide heat?
Yes, this model features "Reverse Cycle" heating, which reverses the refrigeration flow to provide warmth during cool weather. It is an "All-Season" unit capable of maintaining cabin comfort in both summer and winter. Note that reverse cycle heating efficiency drops in extremely cold water (below 38°F), at which point a supplemental heat source may be required.
What size pump does the Mermaid M9 110V need?
The Mermaid M9 110V requires a marine centrifugal pump with a minimum capacity of 250 GPH. A dedicated sea water pump ensures the 9,000 BTU unit has enough flow to maintain the correct refrigerant pressures. Install the pump below the waterline to ensure it remains primed and prevents the unit from tripping on high-pressure safety codes.
How do I clean the Mermaid M9 110V air filter?
The Mermaid M9 110V utilizes a reusable air filter located on the face of the evaporator. Inspect the filter every 30 days and rinse it with fresh water to remove dust and pet dander. Maintaining a clean filter is the most effective way to prevent evaporator icing and ensure the 9,000 BTU cooling performance remains at factory specifications.
What is the weight of the Mermaid M9 110V?
The Mermaid M9 110V has a dry weight of approximately 52 lbs, making it manageable for DIY installations. Its stainless steel base pan is designed for durability in the damp environment of a boat's bilge. When mounting, ensure there is sufficient access for future maintenance of the electrical box and plumbing connections on this specific 110V unit.
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