CTM AH-12HN Air Handler / Fan Coil – 12,000 BTU – 230V – NMEA 2000

Description

Larger cabins on NMEA 2000-networked boats needing 12,000 BTU of central chiller cooling get network-integrated control with the CTM AH-12HN, which pairs standard fan coil cooling with direct MFD compatibility through Garmin Empirbus, OneHelm, and Raymarine YachtSense. At 347 CFM, it moves noticeably more air than CTM’s 6,000 and 8,000 BTU siblings while staying in the same single-blower design family.

What makes NMEA integration worth the added cost at this capacity specifically is zone management: a boat running several 12,000 BTU handlers across different cabins can monitor and adjust all of them from one chartplotter screen, rather than walking to each cabin’s local display — genuinely useful once a vessel has more than two or three independently zoned spaces.

Key Features of the CTM AH-12HN Air Handler

• NMEA 2000 connectivity for control through Garmin Empirbus, OneHelm, and Raymarine YachtSense
• Includes Easycool 3.5″ NMEA 2000 touchscreen display (or Easycool Mini 2.4″ with Vimar bezel)
• Reusable air filter — remove, rinse, and reinstall without replacement parts
• Universal control board compatible with SMXir, Passport I/O, Smart Touch, and Elite II

CTM AH-12HN Technical Specifications

These figures come from CTM’s published spec sheet for this listing. Worth noting for anyone comparing across CTM’s air handler range: this listing’s field labels — “Refrigerant Type,” “Locked Rotor Amps,” “Seawater Inlet/Outlet Connection” — are the same terminology CTM uses across its entire AH-series lineup, including the long-standing non-NMEA AH-12H version. This appears to be CTM’s own template convention for air handler spec sheets rather than a one-off data error, but the terminology doesn’t match how a chilled-water air handler is typically documented, so confirming the actual water connection type with CTM before ordering is still a reasonable step.

• Capacity: 12,000 BTU
• Voltage: 208-240V
• Cycle: 50-60 Hz
• Blower Airflow: 347 CFM
• Blower Speed: 1,200 RPM
• Input Rotor Amps: 0.7 A
• Fuse Max: 5 A
• Blower Duct Size: 5″
• Dimensions (W x D x H): 16.1″ x 10.7″ x 13.3″
• Net Weight: 23 lbs

Why Choose the CTM AH-12HN

Backed by CTM’s standard 2-year warranty, this unit bundles the NMEA Starter Kit and temperature/humidity sensor directly into the purchase, so there’s no separate accessory order needed to get network integration running.

What to Know Before Installing

• Confirm the exact water connection specifications with CTM given the terminology noted above
• Requires a matching CTM CW-series chiller as the central cooling source
• If replacing a Dometic AU-HV air handler, waterline connections need adapting from 1/2″ to 3/4″ — adapter included
• Some older SMXir or Passport I/O controllers may need a firmware update to work with CTM’s universal control board