The Topchill Low-Temp Single Screw Unit is a specialized condensing solution engineered for deep low-temperature refrigeration (evaporating temperature: +10°C to -40°C). It features premium semi-hermetic screw compressors (BITZER, HANBELL, FUSHENG) and a dual-stage heat exchange system, delivering stable cooling for frozen food storage, low-temperature chemical processes, and industrial deep-freezing applications. With R22/R404A refrigerant compatibility and an integrated economizer, it maintains consistent temperatures as low as -40°C while minimizing energy consumption, making it a reliable choice for cold storage warehouses and low-temperature manufacturing facilities.
Deep Low-Temperature Performance: Optimized for evaporating temperatures as low as -40°C, the unit provides stable cooling for deep-freezing needs (e.g., frozen meat, seafood storage). The dual-stage heat exchange system reduces refrigerant temperature step-by-step, ensuring efficient cooling at ultra-low temperatures.
Durable Premium Compressors: Equipped with BITZER (Germany) or HANBELL (Taiwan) semi-hermetic screw compressors, the unit offers 25,000+ hours of service life. The compressors’ low-vibration design (≤ 60 dB(A)) and high torque handle low-temperature loads without frequent startups/shutdowns.
Energy-Saving Economizer: All low-temperature models include an economizer, which increases cooling efficiency by 20% and reduces compressor workload. This cuts annual energy costs by 25% compared to units without economizers.
Multi-Level Capacity Adjustment: The compressor supports 4 levels of capacity adjustment (25%–100%), adapting to fluctuating low-temperature loads (e.g., batch freezing operations). This avoids energy waste during partial-load periods.
Comprehensive Safety Protections: The microprocessor control system provides 10+ safety functions, including compressor overheat protection, low-temperature antifreeze protection, and oil pressure monitoring. It shuts down the unit automatically to prevent damage in extreme conditions.
Compact & Weather-Resistant Design: The unit’s casing is made of galvanized steel with a powder-coat finish, resisting corrosion in high-humidity low-temperature environments. The compact layout saves 40% of installation space, fitting easily in cold storage machine rooms.
Flexible Parallel Operation: Supports parallel connection of up to 7 compressors, allowing capacity scaling for large low-temperature facilities (e.g., 10,000+ m² cold storage warehouses).
