STULZ Tech Brief: Shelter Cooling Solutions
News | 19.06.2025
This month, we’re highlighting STULZ Shelter Cooling Solutions — reliable and energy-efficient systems designed for outdoor telecom and IT infrastructure. These units provide precision climate control in modular shelters, containers, and equipment rooms, ensuring stable operation in all environmental conditions.
STULZ Shelter Cooling units are engineered for mission-critical installations like mobile base stations and transmitter sites. With flexible indoor/outdoor mounting options, integrated Free Cooling, and remote access capabilities, STULZ systems deliver dependable, cost-saving operation under harsh conditions.
WallAir – Outdoor Precision Cooling with Maximum Interior Space
WallAir is a compact, weatherproof precision air conditioning unit mounted externally on containers or shelters. This design frees up valuable internal space while delivering energy-efficient cooling via Direct Free Cooling.
Key features of WallAir:
- Up to 84% energy savings with Direct Free Cooling
- Low refrigerant quantity (<10 tons CO2 equivalent)
- Web-based remote access and monitoring
- Available with EC compressor
- Outdoor conditions: -20 °C to +50 °C
- Cooling capacity: 4 – 16 kW
TelAir – Indoor Cooling for Equipment Rooms and Containers
TelAir is an indoor precision air conditioning unit ideal for telecom shelters and containers. It offers quiet operation and protection from weather and vandalism, with Mixed and Free Cooling options for optimal energy savings.
Key features of TelAir:
- Up to 83% energy savings
- Low refrigerant quantity (<10 tons CO2 equivalent)
- Web-based remote access
- Condensation pressure control
- Airflow options: Downflow, Upflow, Displacement
- Cooling capacity: 4 – 16 kW
SplitAir – Space-Saving Split System for Telecom Containers
SplitAir is a flexible, space-saving split air conditioning system ideal for containerized telecom equipment. With wall or ceiling mounting and Free Cooling support, it ensures uninterrupted cooling even during power loss.
Key features of SplitAir:
- Up to 83% savings with Direct Free Cooling
- Remote access and monitoring via web
- Backup operation on power failure
- Outdoor conditions: -20 °C to +50 °C
- Condensation pressure control
- Cooling capacity: 5 – 16 kW
ShelterAir FC – Retrofit Free Cooling for Base Stations
ShelterAir FC is a retrofit Free Cooling unit for shelters and containers. It significantly reduces operating costs and integrates easily into existing comfort cooling systems, with full support for remote management and backup modes.
Key features of ShelterAir FC:
- Energy-efficient retrofit solution
- Remote monitoring and access
- Backup cooling in power loss scenarios
- Customizable Free Cooling threshold
- Easy integration with existing systems
- Cooling capacity: 4 – 15 kW
CabinetAir PRT – Free Cooling for Outdoor Telecom Cabinets
CabinetAir PRT is a compact Free Cooling solution for outdoor cabinets. Designed for silent operation and maximum reliability, it supports Plug & Play installation and can be maintained without certified refrigeration personnel.
Key features of CabinetAir PRT:
- Quiet and efficient cooling with Direct Free Cooling
- Simple Plug & Play installation
- Maintenance-friendly for operator staff
- Operational range: -20 °C to +60 °C
- System runs at full capacity under all conditions
- Cooling capacity: 1 – 2 kW
STULZ Shelter Cooling Solutions ensure reliable, energy-efficient climate control for telecom and IT infrastructure in outdoor and remote environments. Featuring integrated Free Cooling, wide operating temperature ranges, and robust design, these systems help reduce energy costs, increase uptime, and extend equipment life in mission-critical applications.
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