Nihon Netsugen Systems
Super Green Type C / Type F
CO₂ Refrigeration Unit for Frozen and Refrigerated Warehouses Super Green is Japan’s first refrigeration unit to use CO₂ as its sole refrigerant.

01 Overview
Launched in 2015, it has been installed at sites across Japan. Its key advantage is energy efficiency. Replacing an R22 refrigeration unit with Super Green has delivered annual energy savings of 20–40%. The technology has also received multiple technical awards in Japan.
01
Energy efficiency
- Achieves annual energy savings of 20–40% when replacing an R22 refrigeration unit.
- Its air-cooled design requires no cooling water.
02
Stable operation in extreme heat
- Designed for Japan’s hot, humid climate.
- When the ambient temperature reaches 35°C or higher, mist is sprayed onto the gas cooler.
03
Disaster resilience
- Its air-cooled design allows operation to resume once electricity is restored.
04
Features
Combined Type C/F
A single CO₂ unit can cool frozen and refrigerated warehouses simultaneously.Switchable Type C/F
A single CO₂ unit can switch between freezing and refrigeration, allowing a warehouse to be used for either purpose.

05
Product lineup
Model and Cooling capacity
Type F — frozen warehouses (operating range: −45°C to −15°C)
SG-F1 — 34 kW
SG-F2 — 68 kW
SG-F3 — 102 kW
SG-F4 — 162 kW
Type C — refrigerated warehouses (operating range: −15°C to +15°C)
SG-C1 — 41 kW
SG-C2 — 83 kW
SG-C3 — 124 kW
SG-C4 — 167 kW
06
Applications
- Frozen and refrigerated warehouses
- Distribution centers
- Food processing plants
- Chemical plants
- Pharmaceutical plants
02 Technical dossier
Specifications
2 data points · as published by Nihon Netsugen Systems
- Refrigerant
- CO₂
- Category
- Systems
01Refrigerant
1 entry
- Refrigerant
- CO₂
02Certification & markets
1 entry
- Region
- Africa, Asia, Australia & NZ, China, Europe, Japan, North America, South America
Talk to Nihon Netsugen Systems about the Super Green Type C / Type F.
Send your enquiry to Nihon Netsugen Systems — ask for specifications, pricing and availability for your project.




