#Industry News
GREE GNJ-QF Series Cold Room Refrigeration Units Full Feature Overview
No Welding, No Refrigerant Filling, One-Click Startup: GREE's Factory-Integrated Cold Room Unit
GREE's GNJ-QF series cold room units are fully factory-integrated—no external valves or electric control boxes—with laboratory-verified matching for stable performance. They operate in ambient temperatures from -15℃ to 45℃, delivering -20℃ to 20℃ cold room conditions for fresh, pharmaceutical and freezing scenarios. Factory-matched evaporators ensure uniform cooling, while vacuum circulation prevents liquid start-up. Plug-and-play convenience means no on-site welding, refrigerant filling or commissioning—just a power connection and one-click startup. Standard GPRS modules connect to the GREE cold chain cloud for real-time monitoring, fault diagnosis and WeChat alerts. EXTRCOOL supplies variable-frequency cold room systems.