CTM Marine CW-72HS 72000 BTU Soft Start Chiller

The largest single-phase chiller in CTM’s CW lineup, the CW-72HS delivers 72,000 BTU with a built-in soft start board that reduces compressor startup current by 65-75% compared to standard locked-rotor amperage. This is a direct drop-in replacement for the Dometic MCGX72 chiller, sharing the same DDC control board architecture.

Soft start matters most at this capacity — a 72,000 BTU compressor pulls serious inrush current on a standard start, and for boats running on generator power or a limited shore connection, that surge can be the difference between a system that starts reliably and one that trips a breaker every cycle. The soft start board turns that hard requirement into a manageable one.

Why Choose the CTM CW-72HS

This unit carries CTM’s standard 2-year warranty against material and workmanship defects. For boats running standard single-phase electrical systems with generator or limited shore power, the soft start board here provides real, measurable protection against nuisance breaker trips at startup.

What to Know Before Installing

• This chiller requires separately specified CTM AH-series air handlers distributed to each independent zone
• The dual-cycle compressor supports both 50Hz/220V and 60Hz/230V operation, useful if the boat may operate internationally
• Ships via freight given the 167 lb weight; commercial delivery address required
• If replacing a Dometic MCGX72, this unit uses the same DDC control board for a straightforward swap