CTM CT-16N – 16,000 BTU Marine Air Conditioner 115V NMEA 2000

Description

Not every vessel runs 230V shore power, and that gap is exactly what the CTM CT-16N is designed to close. It delivers the same 16,000 BTU of cooling as its higher-voltage sibling, but built specifically for standard 115V electrical systems common on smaller cruisers and older boats, without giving up the titanium coil construction or NMEA 2000 connectivity found across the rest of CTM’s self-contained lineup.

Key Features of the CTM CT-16N

Built for boats running standard US dockside or generator power, this self-contained unit doesn’t ask for a voltage upgrade to deliver full-size cooling.

• Titanium coils built for saltwater longevity, the same material used across CTM’s full CT lineup
• NMEA 2000 connectivity lets the unit report to and take commands from Garmin, Raymarine, or OneHelm-equipped helms
• Micro-Air EasyStart soft starter compatibility reduces the current spike at compressor startup by as much as 75%, which is particularly useful on boats with limited generator capacity
• A rotatable turbo blower directs airflow where the cabin actually needs it, rather than a single fixed direction
• The reusable air filter is a small detail that adds up over years of ownership, since it skips the recurring cost of disposable filters

CTM CT-16N Technical Specifications

• Cooling Capacity: 16,000 BTU
• Voltage / Frequency: 100–120V, 50/60 Hz
• Refrigerant: R410A
• Current Draw (Cool / Heat): 10.5 A / 13.5 A
• Locked Rotor Amps: 60 A
• Fuse Rating (Min. / Max.): 25 A / 40 A
• Seawater Connections: 5/8″ (16 mm) inlet and outlet
• Dimensions (W x H x D): 20″ x 14″ x 13.5″
• Duct Ring Size: 6″ (152 mm)
• Net Weight: 57 lbs (25.9 kg)
• Connectivity: NMEA 2000 (Garmin EmpirBus, OneHelm, Raymarine YachtSense)

Is the CT-16N Right for Your Boat?

This unit draws noticeably more current than its 230V sibling — 10.5A cooling versus 5.1A — since 115V systems need higher amperage to deliver the same wattage. That’s not a flaw, just physics, but it does mean checking your boat’s electrical panel and breaker capacity before committing to installation. It’s a documented replacement for the Dometic DTU16, DTG16, ECD16, Cruisair STX16/STQ16, and equivalent Marine Air and Webasto 115V units.

If your boat already runs on 230V shore power or a 230V generator, the CT-16HN pulls less current for the same cooling output and is generally the better electrical fit — the CT-16N exists specifically for boats that don’t have that option.

What to Know Before Installing

• Confirm your panel supports the 25–40A fuse range this unit requires — 115V systems draw more current than 230V equivalents
• The CTM PM500L pump (500 GPH, 115V) is the matched water pump for this model
• Return air grille clearance should meet the 160 sq in minimum for unrestricted airflow
• Soft start compatibility is worth using if your boat runs on a smaller generator, since it meaningfully reduces the startup power spike