Ultra-low Ambient Temperature Air Source Screw Heat Pump Unit

Ultra-low ambient temperature air source screw heat pump unit is specifically developed to meet the heating needs of centralized heating in northern regions and extremely cold areas. In support of the national dual-carbon goals to reduce or restrict coal and gas boiler usage, Xinlei has independently developed this unit, filling the technology gap for high-efficiency, energy-saving products in harsh environments and providing an ideal solution for smog mitigation and traditional boiler replacement. The unit is widely applicable to various commercial and residential buildings including villas, shops, hotels, office buildings, schools and residential communities.

National standard heating capacity: 179.8–1069 kWNational standard cooling capacity: 228.3–1469 kW

Axial Fan

High-efficiency, low-noise, and corrosion-resistant axial fan.

Shell-and-Tube Heat Exchanger

Equipped with a standard flooded shell-and-tube heat exchanger, featuring a liquid level sensor for real-time evaporation level control, with a design approach temperature difference as low as 0.5°C.

High-Efficiency Oil Separator

Horizontal type with built-in separation filter and unique exhaust device; oil separation efficiency reaches 99.9%.

Gas-liquid Separator

Effectively prevents liquid slugging in the compressor, ensuring safe and stable operation of the unit.

Fin-type Heat Exchanger

Uses high-efficiency seamless inner-thread copper tubes and ultra-thin hydrophilic nano-coated fins; resists frost and improves performance.

Electronic Expansion Valve

From a well-known industry brand; works with liquid level sensors to quickly adapt to changing operating conditions.

Dual Permanent Magnet Variable Frequency Compressors

Dual-frequency regulation with a 15%–100% operating range; dual Vi adjustment for higher energy efficiency.