CTM CT-16HN – 16,000 BTU Marine Air Conditioner 230V 50/60HZ NMEA 2000

Retrofitting a failing 16,000 BTU system usually comes down to one of two problems: the compressor finally quit, or the old unit was simply too loud to live with. The CTM CT-16HN solves both at once — a 230V marine air conditioner with titanium coils, NMEA 2000 integration, and a documented cross-reference to the Dometic DTG16 and similar OEM units already installed across thousands of boats, making it a genuine drop-in swap rather than a rewiring project.

Why Choose the CTM CT-16HN

This model lists as a documented replacement for several 230V OEM units, including the Dometic DTG16 (part 205162176), DTU16 (205162160), and ECD16 (207500017), along with equivalent Cruisair, Marine Air, and Webasto 16K models. That cross-compatibility matters most when you’re replacing a failed unit and want to reuse existing ductwork and wiring rather than re-engineer the install.

Where this unit is less of a fit: boats without any 230V shore power or generator capacity, since the CT-16HN requires that voltage range to run. For 115V setups, the CT-16N (same BTU rating, different electrical input) is the correct match instead.

What to Know Before Installing

• Pairs well with the CTM PM500LH pump, sized for this unit’s water flow needs
• Fuse sizing must stay within the 13–20A range specified — undersizing trips the breaker under load
• NMEA 2000 setup benefits from a technician familiar with your specific MFD brand, since network configuration varies between Garmin, Raymarine, and other systems
• Return air grille needs at least 160 sq in of clearance for the system to draw air efficiently