Client: PRONATEL (National Telecommunications Program), Ministry of Transport and Communications, Peru. 

Project Name: RDNFO (Red Dorsal Nacional de Fibra Óptica) – Universal Coverage Infrastructure. 

Location: Core Nodes in Ayacucho, Cusco, Puno, Huancayo, and Arequipa. 

Equipment: 22 Units of Hailos S-Series Precision Air Conditioners (Customized 8kW to 60kW DX Units).

1. The Challenge: Extreme Altitude & Mission-Critical Connectivity

The RDNFO is the digital nervous system of Peru, providing fiber optic connectivity to remote regions across the Andes. PRONATEL required a complete overhaul of the cooling systems at their core nodes. The project presented three high-stakes challenges:
Extreme High Altitude: Several nodes are located in Cusco and Puno at altitudes exceeding 3,800 meters (12,500 ft). Standard air conditioners lose significant cooling capacity and risk compressor oil-return failure in thin mountain air.
Andean Logistics: Equipment had to endure hundreds of miles of transport over rugged mountain terrain, demanding extreme structural integrity to prevent refrigerant leaks or frame deformation.
National Security Standards: The project mandated N+1 redundancy and 24/7/365 uninterrupted operation, as any cooling failure would lead to a nationwide internet outage.

2. The Hailos Solution: Industrial-Grade Engineering
Zhengzhou Hailos Refrigeration provided a bespoke engineering package tailored specifically for the Peruvian geography and the MTC (Ministry of Transport) technical specifications:
Altitude Compensation Technology: We utilized high-static pressure EC Centrifugal Fans with customized control logic. This ensured sufficient airflow volume even at 3,800m altitude, maintaining a Sensible Heat Ratio (SHR) above 90% to protect sensitive fiber-optic switching hardware.
"Fortress" Build Quality: To combat transport vibrations and harsh site conditions, Hailos upgraded all cabinets to 0.8mm premium galvanized steel. Furthermore, all internal refrigerant lines were constructed with 1.0mm wall-thickness seamless copper tubes, far exceeding the industry standard of 0.7mm.
Localized Power Integration: Recognizing Peru’s specific electrical grid, the units were factory-certified for 220V/380V at 60Hz frequency, eliminating the need for external transformers and ensuring 100% electrical compatibility.
Advanced Monitoring: Every unit was equipped with SNMP/Modbus cards, allowing the PRONATEL Network Operations Center (NOC) in Lima to monitor real-time temperature and alarm logs across all remote nodes via Ethernet.

3. The Outcome: Reliability Guaranteed
The 22 Hailos units successfully passed the rigorous FAT (Factory Acceptance Test) and on-site commissioning. Since installation, the nodes have maintained a perfect operational record with zero thermal-related downtime.
Key Results:
PUE Optimization: Achieving a 20% reduction in cooling energy consumption compared to the legacy units.
Zero Leakage: The heavy-duty 1.0mm copper piping ensured 100% airtight integrity after high-altitude Andean transport.
Full Compliance: 100% adherence to ASHRAE and EN IEC 60335-2-40:2024 standards, securing the project's long-term technical audit.

4. Client Testimonial
"In a project of national importance like the RDNFO, we cannot afford to guess. Hailos provided not just equipment, but a verified engineering solution that understands the unique challenges of Peru’s altitude and infrastructure. Their build quality is truly industrial-grade." — Project Engineering Lead, PRONATEL.