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This cooling unit is purpose‑built for 5G base station cabinets, delivering 1800W of sensible cooling at 35°C ambient to maintain RF power amplifiers, baseband units, and backup batteries within their specified operating temperatures. The system employs a high‑efficiency rotary compressor with inverter‑driven fan control, adapting capacity from 600W to 2000W based on real‑time thermal load. The condenser and evaporator coils feature a hydrophilic‑coated aluminum fin and copper tube construction, rated for salt spray exposure (ISO 9227) and continuous operation in coastal or industrial zones. Electrical protection includes surge suppression (Type 1+2) and phase‑loss detection. The unit supports 48V DC or 230V AC input options, with a built‑in DC‑DC converter for solar‑hybrid deployments. Communication is via Modbus RTU over RS‑485, with a secondary dry‑contact alarm relay for legacy site monitoring systems.
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Outdoor Cabinet Cooling Unit For 5G Base Stations
5G‑ready · IP55 · Modbus RTUKey Metrics
Cooling capacity1800 W @ 35°C
Operating range-40°C ~ +55°C
Power options48V DC / 230V AC
Enclosure ratingIP55 (IEC 60529)
RefrigerantR454C (GWP 148)
Dimensions900 × 650 × 320 mm
Performance Advantages
±2°C Temperature stability under varying load
30% Energy reduction via inverter fan control
IP55 Dust / water ingress protection
48V Direct DC input for solar integration
R454C Low‑GWP refrigerant compliant
System Features
Compressor Inverter rotary with variable speed from 20Hz to 80Hz, oil‑free start capability, and integrated crankcase heater for low‑ambient startups.
Control PID‑based controller with dual temperature sensors (return air / coil). Supports setpoint 10–50°C, deadband 1–4°C, and 4 fan speed curves.
Protection Surge arrester Type 1+2, over‑voltage (280V AC), under‑voltage (160V AC), phase reversal, and compressor overcurrent (tripping at 12A).
Construction Stainless steel 304 casing with powder coating (≥100µm). Drain pan with anti‑blocking design and built‑in condensate evaporation tray.
Refrigerant R454C charge 620g, A2L classification. Electronic expansion valve (EEV) with superheat control (4–7K) for enhanced efficiency.
Monitoring Modbus RTU with 32 holding registers for status, alarms, and historical min/max temperatures. Local LCD display (optional).
Technical Specifications
| Parameter | Specification |
|---|---|
| Cooling capacity (35°C ambient) | 1800 W ± 4% |
| Operating temperature range | -40 °C ~ +55 °C |
| Power supply (AC version) | 230 V AC, 50/60 Hz, 1 phase |
| Power supply (DC version) | 48 V DC (42–60 V), 25 A max |
| Rated current (AC) | 7.4 A (max 10.2 A locked rotor) |
| Refrigerant / charge | R454C / 620 g (A2L) |
| Enclosure rating | IP55 (IEC 60529) |
| Sound pressure (1m) | 56 dB(A) @ 25°C, low speed |
| Dimensions (H × W × D) | 900 × 650 × 320 mm |
| Weight | 48 kg |
| Communication interface | Modbus RTU (RS‑485), 9600/19200 baud |
Frequently Asked Questions
Q: Can this unit operate on 48V DC directly?
Yes. The DC variant accepts 42–60V DC input with built‑in reverse polarity protection and soft‑start circuitry. It is suitable for solar‑powered sites or hybrid power systems.
Q: What is the difference between R454C and R134a?
R454C has a GWP of 148 (vs. 1430 for R134a), is mildly flammable (A2L), and provides approximately 6% higher volumetric capacity. The unit uses an EEV and specific compressor oil (POE) for this refrigerant.
Q: How is the unit protected against lightning surges?
The unit includes a Type 1+2 surge arrester (10/350µs and 8/20µs) on the AC input, plus additional TVS diodes on the communication lines (RS‑485) to meet IEC 61000‑4‑5 Level 4.
Q: What is the maintenance schedule for the filter?
The washable aluminum mesh filter should be inspected every 3 months in typical outdoor conditions. Clean with compressed air or mild detergent. Replace every 18 months or if damaged.
Q: Does the unit support remote firmware updates?
Yes. The controller includes a bootloader that allows firmware upgrades via Modbus (function code 0x46) using a proprietary tool. Contact support for the update package and procedure.
Q: Can multiple units be synchronized?
Up to 16 units can be connected on the same RS‑485 bus. The controller supports master‑slave coordination for load‑sharing and staggered startup to reduce in‑rush current.
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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 Cooling Unit For 5g Base Stations Manufacturers and Custom Outdoor Cabinet Cooling Unit For 5g Base Stations 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
