Mermaid M9 Cool Only Marine A/C Unit - 9,000 BTU's - 220V
Mermaid
FMS M9 Cool Only Marine A/C Unit - 9,000 BTU's - 220V
With a cooling capacity of 800 cubic feet, the FMS 9,000 BTU unit is designed to cool up to a 30′ cruiser or a 32′ sailboat.
The smallest 9,000 BTU on the market; it is almost the same size as the FMS M6 unit. In order to keep the smallest footprint on the market, FMS utilizes the same stainless steel base as the FMS M6 (6500 BTU) unit. This unit will run off of a Honda 2000 generator. This unit is available in right, left, or top air discharge configurations. FMS uses a 6″ and 4″ ducting and recommend a minimum of three 4″ round supply grills with this installation.
All M9 models include a digital thermostat, an insulation mounting pad, and an air output collar. Pump not included.
New Redesigned Unit Features:
- Redesigned control box with more reliability and fewer components (if you need pictures please let me know)
- Resettable 30 amp circuit breaker (replacing the 30 amp glass fuse)
- Upgraded thermostat
- Inverted drip tray with handles for carrying
- Mechanical freeze protection
- Dual drain locations for easier installation
- Soft Start technology – for smoother, more efficient startups
- Variable Speed Blower – for precise comfort and reduced power draw
FMS Standard Digital Programmable/Non Programmable Thermostat
The FMS Standard Programmable/Non-Programmable Thermostat / Control is designed to be used with any FMS unit. Programmable features allow for de-humidification. It is provided standard with each FMS Marine Air conditioning unit.

FMS Digital Thermostat. Designed to be used with any FMS unit. Programmable features allow for de-humidification.
It is provided standard with each FMS Marine Air conditioning unit. The thermostat is also accompanied with 20 feet of four-wire thermostat cable and installation instructions.
The programmable features allow for weekday and weekend setting for those boater’s who care to use the unit for dehumidification or simply climate control while not on board. The unit may also simply be used as a on/off control device by utilizing the “Hold” temperature setting key.
Non-Programmable Thermostats are also now available.
Dimensions:
Length 4 1/2" x Width 1 1/4" x Height 3 1/4".
Technical Specifications
| Model | M9 |
| Cooling Capacity | 9,000 BTU's |
| Voltage | 220V |
| Running Amperage | 7.0 A |
| Unit Length | 16 inches |
| Unit Width | 11.5 inches |
| Unit Height | 12 inches |