
CTM CX-24HS – 24,000 BTU Condenser – Marine Split A/C Unit – 230V – 50/60HZ – R410A w/ Soft Start
CTM CX-24HS combines 24,000 BTU condenser capacity, 230V 50/60HZ power, R410A refrigerant, and soft-start operation for split A/C systems.
- 24,000 BTU capacity supports larger zones.
- 230V input matches listed installations.
- 50/60HZ rating covers listed frequencies.
- R410A specifies the refrigerant type.
- Soft start reduces startup current.
For boats needing serious cooling capacity without stepping up to the 36,000 BTU class, the CTM CX-24HS condenser delivers 24,000 BTU with soft start technology built in — letting the compressor run on a smaller generator or inverter than it would otherwise need.
Why Choose the CTM CX-24HS
Soft start matters most for boats running on limited shore power, a smaller generator, or an inverter — it lets a 24,000 BTU compressor start without demanding the huge inrush current a standard compressor would pull, opening up options like running two AC units on a single 30-amp cord.
Given the current draw figure appears identical across multiple CTM condenser listings regardless of capacity, treat the published 7.6A/9.0A figure with some caution and confirm directly with CTM before sizing breakers — the locked rotor amps and fuse rating, which do scale correctly with capacity, are more reliable for planning purposes in the meantime.
What to Know Before Installing
- EPA certification must be provided before shipping
- Requires a separately purchased evaporator — this listing is the condenser only
- Confirm actual current draw with CTM given the repeated data overlap noted above
- An 8-pin Elite II control with cable can be added at checkout if needed
Product Specifications
Product Specifications
| Brand | CTM Marine |
|---|---|
| Exact Model Code / SKU | CX-24HS (Soft Start Version) |
| Country of Origin | USA |
| System Architecture | Split System Condenser (w/ Soft Start) |
| Cooling Capacity - BTU/h | 24,000 BTU/h |
| Cooling Capacity - kW/Watts | 7.03 kW |
| Heating Capacity - BTU/h | 24,000 BTU/h |
| Reverse Cycle Heating Function | Yes |
| Electrical Voltage | 230V |
| Alternating Current Frequency | 50/60 Hz |
| Electrical Phase | Single Phase |
| Full Load Amps - FLA Cooling | 5.8 A |
| Full Load Amps - FLA Heating | 7.4 A |
| Locked Rotor Amps - LRA | 12 A (Reduced via Integrated Soft Start Ramp) |
| Max Circuit Breaker Size | 25 A |
| Refrigerant Type | R-410A |
| Compressor Type | Hermetic Rotary / Scroll |
| Seawater Water Flow Rate | 8.33 GPM (500 GPH) |
| Seawater Inlet Pipe Size | 5/8 inch (16 mm) |
| Seawater Outlet Pipe Size | 5/8 inch (16 mm) |
| Physical Dimensions - Unit | 14.0 x 14.0 x 11.5 inches (356 x 356 x 292 mm) |
| Net Weight | 55 lbs (25 kg) |
| Chassis & Condenser Material | Stainless Steel Pan & Titanium Coils |
| Standard Factory Warranty | 2 Years |
| Application & Sizing Guidance | Ideal for large cabins/salons up to 1200 cu.ft, boat length 36-45 ft, optimized for modest marine generators or dock power profiles due to low startup LRA surge. |
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