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2000 W Cooling @ 35°C ambient
48V DC Direct battery voltage input
IP55 Dust / water ingress protection
R290 Low‑GWP refrigerant (GWP 3)
This cooling unit is engineered for solar‑powered telecom and monitoring cabinets, operating directly from a 48V DC battery bus (42–60V range) with a dedicated MPPT communication interface for charge controller coordination. The inverter‑driven rotary compressor modulates capacity from 500W to 2000W, matching cooling output to fluctuating solar availability and thermal load.
The system features a phase‑change material (PCM) thermal buffer that stores cooling capacity during peak solar hours, reducing battery draw during cloudy periods. The controller includes a built‑in energy logger that tracks daily consumption and predicts runtime based on battery state‑of‑charge. All power electronics are potted for moisture resistance, and the condenser coil is coated with a hydrophobic nano‑layer to minimize dust accumulation in arid environments.
Cooling capacity2000 W @ 35°C
Operating range-30°C ~ +55°C
DC input range42–60 V DC
Max current draw28 A (48V DC)
RefrigerantR290 (GWP 3)
EnclosureIP55 / IK08
Key System Features
Inverter Compressor
Variable speed 30–90 Hz with soft‑start and DC bus voltage compensation. Maintains cooling output across battery voltage sag (down to 42V) without performance degradation.
PCM Thermal Buffer
Phase‑change material (18°C melt point) stores 2.4 kWh of cooling capacity. Reduces compressor runtime during low‑irradiance periods by up to 40%.
Energy Management
Integrated logger with Modbus RTU (RS‑485) and CAN bus interface. Supports load‑shedding based on battery SOC and remote setpoint adjustment via SCADA.
Condenser Design
Microchannel coil with hydrophobic nano‑coating. Dual axial fans with PWM speed control. Optimized for operation in sand‑laden atmospheres (MIL‑STD‑810G).
Protection Suite
Over‑discharge prevention (low‑voltage cut‑off at 40V), reverse polarity, over‑temperature (compressor and electronics), and surge protection (Type 2).
Mechanical Construction
AlMg3 aluminum casing with stainless steel fasteners. Drainage ports with anti‑blocking grilles. Mounting flanges for pole or wall installation.
Technical Specifications
Electrical & Cooling
| Cooling capacity (35°C) | 2000 W ± 4% |
| Operating temp. range | -30 °C ~ +55 °C |
| DC input voltage | 42 – 60 V DC |
| Max. current (48V) | 28 A |
| Standby power | 6 W (heater off) |
| Refrigerant / charge | R290 / 220 g |
Mechanical & Environmental
| Enclosure rating | IP55 (IEC 60529) / IK08 |
| Sound pressure (1m) | 58 dB(A) @ 25°C |
| Evaporator airflow | 620 m³/h |
| Dimensions (H × W × D) | 880 × 550 × 300 mm |
| Weight | 44 kg |
| Communication | Modbus RTU · CAN bus |
Frequently Asked Questions
Q: Can this run directly from solar panels without batteries?
A battery is required to provide stable voltage during cloud transients. The unit can operate from a battery bank with minimal capacity (≥ 50Ah) and includes a low‑voltage disconnect to protect the battery.
Q: What is the PCM thermal buffer and how does it work?
A sealed module containing 8kg of phase‑change material (melting point 18°C) absorbs excess cooling during low load and releases it when the compressor is off, reducing cycling and improving efficiency.
Q: How does the unit handle high ambient temperatures?
The inverter compressor increases speed up to 90Hz to maintain capacity up to 55°C ambient. Above 50°C, the controller gradually reduces speed to protect the motor insulation.
Q: Is the unit compatible with solar charge controllers?
Yes. The CAN bus interface supports communication with major MPPT controllers (Victron, Morningstar, OutBack) via a pre‑configured protocol. Contact support for the mapping file.
Q: What maintenance is required for the condenser coil?
In desert or agricultural areas, inspect the coil monthly. Use low‑pressure compressed air (≤ 0.3 MPa) from the inside out. The hydrophobic coating reduces cleaning frequency compared to bare aluminum.
Q: Can multiple units be paralleled for larger cabinets?
Up to 8 units can be networked via CAN bus with automatic load‑sharing and master‑slave failover. The system also supports staged startup to limit in‑rush current on the DC bus.
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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 Outdoor Cabinet Air Conditioner For Solar Power Systems Manufacturers and Custom Outdoor Cabinet Air Conditioner For Solar Power Systems 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
