CTM CW-72H3 – Marine Chiller System 72,000 BTU – 230V – 50/60HZ – R410A – 3 Phase

Description

Larger yachts running on 3-phase electrical systems have a dedicated option in the CTM CW-72H3, delivering 72,000 BTU of central chiller cooling built specifically for 208-240V 3-phase power. This three phase yacht chiller is a direct drop-in replacement for Dometic’s MCGX72 chiller line, sharing the same DDC control board and controls.

Choosing a 3-phase unit over the single-phase soft-start version matters specifically for boats already wired for 3-phase power — it avoids the compromises of running a single-phase compressor off a 3-phase supply, and in many cases 3-phase motors run more efficiently and with less vibration than an equivalent single-phase unit at the same capacity.

Key Features of the CTM CW-72H3 Chiller

This ctm dometic chiller replacement is engineered as a drop-in swap for the Dometic MCGX72, sharing the same control architecture so replacement doesn’t mean re-wiring your existing cabin control panels.

• Direct drop-in replacement for Dometic MCGX72 chiller units, using the same DDC control board and controls
• Titanium condenser coil resists corrosion significantly better than copper in seawater applications
• Advanced MCC control board is a fully compatible replacement for the OEM DDC control board
• Corrosion-resistant metallic electrical box with effective grounding and EMI shielding
• Stainless steel frame base resists rust in harsh marine environments

CTM CW-72H3 Technical Specifications

These figures come from CTM’s official spec sheet for this listing. Worth flagging: the “Substitute the Following OEM Part Numbers” section on this page incorrectly lists the CW-72HS part number (35521W) instead of this unit’s own CW-72H3 part number (35321W) — an apparent copy-paste error from the CW-72HS product page. The technical specifications below reflect the correct CW-72H3 figures.

• Capacity: 72,000 BTU
• Voltage: 208-240V
• Phase: 3-phase
• Cycle: 50-60 Hz
• Refrigerant: R410A
• Current Consumption (Cool/Heat): 15 A / 18 A
• Locked Rotor Amps: 153 A
• Fuse Max/Min: 55 A / 35 A
• Seawater In/Out: 3/4″ / 3/4″
• Chilled Water In/Out: 1.0″ / 1.0″
• Suggested Water Flow: 3,000 GPH
• Dimensions (W x D x H): 20.2″ x 13″ x 21″
• Net Weight: 167 lbs

Why Choose the CTM CW-72H3

This unit carries CTM’s standard 2-year warranty against material and workmanship defects. Given the OEM substitution table error identified above, confirming the exact replacement part number with CTM directly before ordering — rather than relying on that table — is worthwhile if you’re matching this to a specific Dometic unit.

What to Know Before Installing

• Confirm your vessel’s electrical system is genuinely wired for 3-phase power before ordering this variant over the single-phase CW-72HS
• This chiller requires separately specified CTM AH-series air handlers distributed to each independent zone
• Do not rely on the OEM substitution table on this listing given the copy-paste error noted above — confirm replacement part numbers directly with CTM
• Ships via freight given the 167 lb weight; commercial delivery address required