CTM Marine CW-48HS 48000 BTU Soft Start Chiller

Description

Mid-sized yachts stepping up from a 36,000 BTU chiller without jumping straight to the largest CTM models find their match in the CW-48HS, delivering 48,000 BTU with a built-in soft start board and the same titanium coil, stainless steel construction found across CTM’s chiller lineup. It’s a direct drop-in replacement for the Dometic MCGX48 and TWCX48 chiller line.

The soft start board here does real work at this capacity — a 48,000 BTU compressor pulls meaningful inrush current on a standard start, and for boats running generator power or a limited shore connection, that reduced startup draw is often what keeps a breaker from tripping every time the compressor cycles on.

Key Features of the CTM CW-48HS Chiller

This dometic mcgx48 replacement unit brings CTM’s soft start technology to a mid-capacity tier, giving boats that have outgrown smaller chillers a properly sized option without the cost of CTM’s largest models.

• Built-in soft start board reduces startup current by 65-75% compared to the compressor’s locked-rotor amperage
• Direct drop-in replacement for Dometic MCGX48, TWCX48, and VARC48/VARCX48 chiller units
• 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

CTM CW-48HS Technical Specifications

These figures come from CTM’s official spec sheet for this listing. Current draw, locked rotor amps, and fuse rating all scale consistently against CTM’s other chiller listings at this capacity tier, with no discrepancies found in the specification data.

• Capacity: 48,000 BTU
• Voltage: 220V/230V
• Phase: Single phase (dual cycle compressor: 50Hz at 220V / 60Hz at 230V)
• Refrigerant: R410A
• Current Consumption (Cool/Heat): 14.0 A / 19.0 A
• Locked Rotor Amps: 42 A
• Fuse Max/Min: 65 A / 40 A
• Seawater In/Out: 3/4″ / 3/4″
• Chilled Water In/Out: 1.0″ / 1.0″
• Suggested Water Flow: 2,000 GPH
• Dimensions (W x D x H): 13″ x 17.7″ x 19.6″
• Net Weight: 150 lbs

Why Choose the CTM CW-48HS

This is a genuinely useful middle option in CTM’s chiller lineup, backed by CTM’s standard 2-year warranty against material and workmanship defects. If you’re replacing a Dometic MCGX48 or TWCX48, the same DDC control board compatibility makes for a straightforward swap without rewiring existing cabin controls.

What to Know Before Installing

• Confirm your vessel’s electrical system is genuinely wired for single-phase 220V/230V power before ordering
• This chiller requires separately specified CTM AH-series air handlers distributed to each independent zone
• Ships via freight given the 150 lb weight; commercial delivery address required
• If replacing a Dometic MCGX48, TWCX48, or VARC48, this unit uses the same DDC control board for a straightforward swap