Is CTM Marine compatible with my current Self-contained system?
1. find the ctm unit you want to replace your old system with.
2. find the brand of your current system.
3. check the models the ctm unit is compatible with.
4. if your current system is there, say hi to your new marine air conditioner.
not so fast...
The CTM CX Marine Air Conditioning Unit works as an excellent replacement for the Dometic DEG and DEU. There are some specs that should be taken into consideration when replacing one of the units previously mentioned. It is also a good replacement unit for the Cruisair RX models, but in the case of the RX units, you will need to replace the evaporators (being that they use R22 / R417A gas and the CX unit and evaporators use R410A)
- Because the CX split units come with the Universal Control board, it will work with the controller you currently have.
Supported controllers include: SMXir, Passport I/O (firmware: ), Smart Touch, Elite II (firmware: ).
- Waterline connections should be the same as the unit you are replacing, the CX unit has a standard 5/8" water connection.
- Dimensions wise the CTM CX is very similar to the above-listed Dometic and Cruisair split gas units, so there shouldn’t be any issues when replacing your current unit with the CX. However, it is recommended that you double-check your current installation space and the CTM CT’s specs in order to avoid any issues when installing.

CX-10
CTM Part No: 52101X
Voltage: 115V 50/60 Hz

CX-10H
CTM Part No: 522101X
Voltage: 230V 50/60 Hz

CX-12
CTM Part No: 53101X
Voltage: 115V 50/60 Hz

CX-12H
CTM Part No: 53201X
Voltage: 230V 50/60 Hz

CX-16
CTM Part No: 54101X & 54401X
Voltage: 115V 50/60 Hz

CX-16H
CTM Part No: 54201X & 54501X
Voltage: 230V 50/60 Hz

CX-24H
CTM Part No: 55201X & 55501X
Voltage: 230V 50/60 Hz

CX-36H
CTM Part No: 56201X & 56501X
Voltage: 230V 50/60 Hz

CX-48H
CTM Part No: 557201X
Voltage: 230V 50/60 Hz