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Explore our comprehensive range of high-quality refrigeration equipment designed for industrial and commercial applications.
1600 W Cooling @ 35°C
24/48V Auto-select input
4.5 W Standby power
IP55 Enclosure rating
This DC-powered air conditioner is designed for outdoor cabinets in off-grid and hybrid solar installations. The unit operates natively on 24V or 48V DC battery buses, with an auto-sensing power module that accepts input from 18V to 60V DC without manual configuration. The variable-speed DC compressor delivers 1600W of cooling at 35°C ambient while drawing a maximum of 28A at 48V.
The controller features an ultra-low standby mode consuming 4.5W, making it suitable for solar-powered sites with limited battery capacity. A built-in MPPT communication interface allows coordination with charge controllers to prioritize cooling during peak solar generation. The system includes a soft-start circuit that limits in-rush current to 1.5x nominal, preventing voltage sag on the DC bus during compressor startup.
Input range18–60V DC
Max current (48V)28 A
RefrigerantR290 (GWP 3)
Dimensions860 × 560 × 300 mm
Weight38 kg
CommunicationModbus RTU · CAN
System Architecture
01
DC Compressor & Inverter
Variable-speed rotary compressor with integrated DC-AC inverter. Operates from 20Hz to 80Hz with efficiency >92% across the full speed range. Includes over-current and thermal protection.
02
Auto-Sensing Power Module
Accepts 18–60V DC input. Automatically detects voltage and configures internal parameters. Built-in reverse polarity protection and transient suppression (IEC 61000-4-5 Level 4).
03
MPPT Communication Interface
CAN bus interface for coordination with solar charge controllers. Receives PV power availability signals and adjusts cooling capacity to match available solar energy, reducing battery drain.
04
Ultra-Low Standby Mode
When cabinet temperature is within setpoint, the unit enters standby consuming 4.5W. The controller wakes periodically to sample temperature and resumes cooling as needed.
Technical Specifications
Electrical
DC input range18–60 V DC (auto-select)
Nominal voltage24V / 48V DC
Max current (48V)28 A
Max current (24V)56 A
Standby power4.5 W
In-rush current limit1.5x nominal
Cooling
Cooling capacity (35°C)1600 W ± 4%
Operating range-30°C ~ +55°C
Refrigerant / chargeR290 / 280 g
Evaporator airflow580 m³/h
Condenser airflow920 m³/h
Sound pressure (1m)54 dB(A) @ 25°C
Mechanical
Enclosure ratingIP55 (IEC 60529)
MaterialAlMg3 aluminum
CoatingPolyester powder (80µm)
Dimensions (H×W×D)860 × 560 × 300 mm
Weight38 kg
MountingWall / pole bracket
Application Scenarios
Solar-Powered Telecom - Remote BTS and microwave relay sites where grid power is unavailable. The DC input eliminates the need for AC inverters, improving overall system efficiency.
Electric Vehicle Charging - Cabinets housing DC fast-charging electronics. The unit operates directly from the station's DC bus, reducing conversion losses.
Off-Grid Monitoring - Environmental monitoring stations in remote locations. Ultra-low standby power extends battery life during periods of low solar irradiance.
Frequently Asked Questions
Q: Can this unit operate directly from solar panels?
A battery bank is required to buffer voltage fluctuations. The unit's auto-sensing input accepts 18–60V DC, so it can connect directly to a 24V or 48V battery bus. A charge controller is recommended between panels and batteries.
Q: How does the MPPT communication interface work?
The CAN bus interface receives PV power availability signals from compatible charge controllers. The unit adjusts compressor speed to match available solar power, preserving battery capacity for other loads.
Q: What is the standby power consumption?
The unit consumes 4.5W in standby mode. The controller wakes every 30 seconds to sample cabinet temperature. When cooling is required, the compressor starts with a soft-start sequence.
Q: Is the unit compatible with 24V and 48V systems?
Yes. The auto-sensing power module detects input voltage and configures internal parameters automatically. No manual switching is required. The unit operates across the full 18–60V range.
Q: What protections are included?
Reverse polarity protection, over-voltage cutoff (62V), under-voltage cutoff (16V), compressor overcurrent, over-temperature, and high-pressure switch (3.8 MPa). All protection thresholds are user-configurable.
Q: Can multiple units be connected in parallel?
Up to 10 units can be networked via CAN bus with coordinated load-sharing. The system includes staggered startup to prevent in-rush current spikes on the DC bus.
Product Categories
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Evaporative assisted cooling for maximum efficiency in hot climates
ecoProfessional Customization
Tailor-made solutions — from design to manufacturing, for your specific needs
CUSTOM ISO 9001 · CE Certified
Shanghai Soouney Refrigeration Equipment Co., Ltd.
A large-to-medium-sized high-tech enterprise integrating R&D, production and sales. Upholding "integrity, quality, service and innovation" — delivering reliable cooling solutions to the world.
11+
Export Countries
200+
Projects Delivered
19+
Years of Innovation
100%
Client Satisfaction
2007
Engineering Excellence in Refrigeration
Shanghai Soouney was founded with a vision to become a leading force in the refrigeration industry. We are China DC Powered Outdoor Cabinet Air Conditioner Manufacturers and Custom DC Powered Outdoor Cabinet Air Conditioner Suppliers. Today, we are a renowned brand in cabinet air conditioners and industrial chillers, recognised by professionals worldwide.
Rooted in the Chinese market, we provide reliable refrigeration solutions to clients across the globe — from standard products to professional customisation.
From standard products to professional customization — we deliver precision cooling.
R&D Driven
High starting points, stringent standards — continuous innovation
Integrity & Trust
Long-term partnerships built on transparency and after-sales support
Certified Quality
ISO 9001, CE, and industry-specific approvals across all lines
Global Mindset
Serving 40+ countries with tailored refrigeration solutions
"We don't just cool equipment — we build trust, one project at a time."
Why Soouney
Driven by Quality & Innovation
Committed to delivering excellence through continuous improvement and customer-centric solutions.
R&D Focus
High starting points, stringent standards — continuous product improvement
Integrity & Service
Long-term partnerships built on trust, transparency and after-sales support
Global Presence
Rooted in China, serving worldwide with reliable refrigeration solutions
Certified Quality
ISO 9001, CE, and industry-specific approvals for all product lines
