CW-48HS

CTM Chilled Water Marine Air Conditioners are the ultimate solution for yachts and larger vessels, delivering powerful and efficient cooling and heating throughout multiple independent areas. By circulating temperature-controlled freshwater through insulated piping to air handlers, CTM chiller systems provide a consistent and quiet onboard climate.

Powerful & Efficient: Designed to cool and heat multiple areas with a single centralized system.

Quiet Operation: Eliminates compressor noise in living spaces for a peaceful onboard experience.

Durable & Corrosion-Resistant: Titanium circulating coils, stainless steel bolts, and a reinforced structural pan ensure long-lasting performance.

Built for maximum reliability and comfort, CTM chilled water marine air conditioners offer seamless temperature control, keeping every journey smooth and enjoyable.

Chilled Water
48,000
BTUs
208-240
Volts
NMEA2000
Soft Start
Compact
Titanium Coil
Cooling
Heating
Quiet
Universal Board
Turbo Blower
Modular
Wi-fi Compatible
Robust Electrical Box
Stainless Steel Base
NMEA2000
ABS Rust Free Base
Reusable Air Filter
Soft Start
User Manual
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Spec Sheet
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Easy Start Wiring
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U-Board Specs
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Unit Drawings
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3D USDZ
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3D GLB
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3D FBX
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Specifications
Capacity (BTU)
48,000
Voltage (V)
208-240
Cycle (Hz) / Phase (Ph)
50-60 / 1
Input: Cool (A)
14
Input: Heat (A)
19
Fuse Max/Min (A)
65 / 40
Locked Rotator Amps (A)
42
Seawater Inlet Connection (in/mm)
3/4
Seawater Outlet Connection (in/mm)
3/4
Refrigerant Type
R410A
Net Weight (lbs/kg)
150 / 68
Width (in/mm)
17.7 / 450
Height (in/mm)
19.6 / 500
Depth (in/mm)
13 / 332
Duct Ring Size (in/mm)
Min. Return Air Grille (sq in /sq cm)
Min. Supply Air Grille (sq in /sq cm)

NMEA 2000 compatible

This NMEA 2000 compatible unit delivers seamless integration with Garmin Empirbus, OneHelm, and Raymarine YachtSense. Control multiple HVAC systems directly from your vessel’s MFD and digital switching systems — no extra displays required.

Soft Start

This unit is compatible with Micro-Air EasyStart soft starters, reducing starting amps by up to 75%. Enjoy reliable performance with continuous runtime diagnostics that monitor for stalls, overcurrent, miswiring, short cycles, and more.

Installation Diagram

Explore our installation diagram to understand how CTM Marine units integrate into your vessel.

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CW-48HS

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Compatible models below
Brand
OEM Part Number
Description
We’re actively working on updating compatible part numbers for non-CTM marine models. But you can find compatible units in our new search tool below:

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Compatible With Most Thermostats

Easy Touch

Elite II

Passport I/O

SMXIR