CTM CT-6H - 6,000 BTU Marine Air Conditioner - 230V - 60HZ

CTM CT-6H Marine Air Conditioner 6,000 BTU - 230V - 60HZ - Turbo Blower

6,000 BTUs of powerful, quiet, and efficient cooling. 230V. Titanium circulating coils, stainless steel bolts, and stainless steel structural pan with ABS tray ensure long-lasting, corrosion-proof performance in even the toughest of marine environments. 2 Year Warranty*. Patent Pending S/N 63/104189.

The quiet, powerful, and efficient CTM is a great option for new installs but also works as the perfect drop-in replacement for all major marine A/C brands including Dometic, Webasto, Cruisair, Marine Air, and Mermaid Air. The CTM is fully compatible with all Dometic, Cruisair, Marine Air, and Micro Air controls/thermostats and cables, making replacement of those systems a breeze.

CTM has taken nearly a decade of experience as a top-selling marine A/C retailer in the US, and combining this with an understanding of the wants and needs of marine A/C customers — as well as where other major brands could be improved — CTM has created a self-contained marine air conditioner that raises the bar on quality and performance.

Also Substitutes the following Part Numbers

And while lightweight and with a small footprint, the CTM CT includes titanium circulating coils, a high-velocity rotatable turbo blower (rotates less than 250 degrees), stainless steel bolts, and a stainless steel structural pan with Plastic ABS tray in order to ensure long-lasting, corrosion-proof performance in even the toughest of marine environments.

All CTM Control Boards, Temperature Sensors, and cables are made in the United States under strict quality standards. Every CTM Unit comes with an industry-standard 2-year warranty*, knowledgeable and attentive customer service, and ships ground to you free of charge within the US.

As marine A/C retailers, as well as boaters ourselves, we know what boaters are looking for in a marine A/C system — and this is exactly what the CTM line delivers

CTM CT Unit vs Dometic DTG and Webasto FCF Platinum

Specifications:

Capacity

6,000 BTU

Voltage

208-230 V

Cycle / Phase

60 Hz / 1Ph

Current Consumption Input

2.7 A

Fuse 

15 A

RLA / LRA

4.6 A / 20 A

Refrigerant Type

R410A

Refrigerant Charge

7.8 oz / 220 gr

Blower Airflow

271 CFM

Blower Speed

1980 RPM

High Velocity Blower

Yes

Min. Supply Duct Size

4 in / 102 mm 

Seawater In / Out 

5/8" / 5/8"

Condenser Water Flow

2.5 GPM

Net Weight

41 lbs / 18.6 kg

Features of the CTM CT-6

Dimensions:

A - Depth	15.65 in / 39.8 cm
B - Drain Pan Width	9.25 in / 23.5 cm
C - Width	9.65 in / 24.5 cm
D - Height	11.2 in / 28.5 cm
E - Min. Duct Diameter	4 in / 10.2 cm

CTM CT Unit Cooling Efficient Design vs Competitors

Universal Control Board Layout


Compatible with Most Thermostats

Smart Touch / Easy Touch	CTM Elite II	Passport I/O	SMXir

Because the CTM unit comes with the Universal Control board, it should work with the controller you currently have. Supported controllers include the SMXir, Passport I/O, Smart Touch, and Elite II. However, there are some older versions of the SMXir and Passport i/o controllers that don't have the firmware to work with the new universal board. A newer version of the SMXir or the Passport i/o.

NEW 2026 CTM Unboxing & Installation Tutorial |CTM) Marine Self-Contained A/C

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To be honest, most marine air conditioners from all the major brands are solid and will do the job, as long as they’ve been installed correctly. However, the keyword here is most. You want to improve your odds of being satisfied with your A/C purchase by researching which company’s units have the least number of complaints… and if there is a problem, how that company handles it.

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Notes if replacing a Dometic DTU6, DTG6 or ECD6 - 230V

The CTM CT-6H 230V marine air conditioning unit works as a good replacement for the Dometic DTG6 - 230V (205162069), DTU6 - 230V (205162060), or ECD6 - 230V (207500307). There are some specs that should be taken into consideration when replacing one of the units previously mentioned. 

- Because the CT-6H unit comes with the Universal Control board, it will work with the controller you currently have. Supported controllers included: SMXir, Passport I/O, Smart Touch, Elite II. 

- Waterline connections should be the same as the unit you are replacing, the CT-unit has a standard 5/8" water connection.

- The CT-6H Unit has a 4-inch ducting ring whereas the Dometic comes with a 5 inch. It is a quick replacement as the ducting can be easily cinched down with a clamp.

- Dimensions wise this unit is very similar to the one you are replacing, so It shouldn't be a major issue. However, it is suggested you double-check in order to avoid any issues when installing.

Warranty

The warranty period of registered CTM products is (3) three years, being the first year parts and labor, the second & third year parts only. For unregistered CTM products (1) one year, being the first 6 months parts and labor, and the last 6 months parts only. The warranty period of CTM products begins from the date of purchase (if purchased through a dealer or distributor), when installed  (if installed by an authorized CTM dealer) and/or at the time of possession of the vessel by the owner (for OEM installations). However, the warranty period shall not exceed (3) three years from the original manufacture date. CTM products include a serial number which is date-coded, in order to determine the manufacturer date of the product, you may contact CTM’s customer service to obtain the original date.
In the event there is an extended period of time between the date a CTM product is manufactured and the moment that the product goes into service, CTM will require proof of purchase. For unregistered products, a proof of purchase will be required as well.

For more detailed information please download the Manual and refer to page 17.