V-Type Top-Blowing Parallel Unit with Semi-Hermetic Piston Compressor (15–60HP)

The V-type top-blowing parallel integrated unit equipped with a semi-hermetic piston compressor is a high-capacity refrigeration solution tailored for large-scale commercial and industrial cold storage applications. Designed to meet demanding thermal requirements, it supports a broad power range from 15HP to 60HP, with modular parallel configurations for enhanced capacity and redundancy.

Ideal for projects that require energy-efficient performance, precise temperature control, and scalable power, this unit is built for cold rooms, freezers, and refrigeration logistics hubs. Its top-blowing structure and multiple-fan configuration ensure consistent airflow and optimal heat exchange across all operational conditions.

Key Features:

• Compressor Type: Semi-hermetic piston compressor (Blazer® brand)
  Designed for long service life and stable performance in demanding low-temperature conditions.

• Cooling Method:

  • Low-temperature refrigeration with head fan

  • Includes electronic expansion valve and economizer for enhanced cooling performance and energy efficiency

• Evaporating Temperature Range:

  • Operates efficiently from -40°C to +10°C, suitable for deep freezing to moderate refrigeration.

• Ambient Temperature Range:

  • Built to withstand environments ranging from -25°C to +48°C.

• Refrigerants Supported:

  • Compatible with multiple refrigerants including R404A, R449A, R448A, R507A, R452A, allowing flexibility across international markets.

• Refrigeration Oil Type:

  • Uses BES52 or equivalent ester-based oils for high lubrication and thermal stability.

• Oil Management:

  • Reinforced external oil separator + oil storage tank configuration ensures reliable oil return and long-term compressor health.

• Number and Diameter of Fans:

  • Configurable with 4 to 6 axial fans, diameter options 450mm / 550mm / 630mm / 700mm, depending on the module configuration.

• Condenser Performance:

  • High-efficiency finned heat exchanger

  • Total heat exchange area ranges from 200m² to 500m², providing superior heat dissipation even in extreme conditions.

• Coil Structure and Material:

  • Internally threaded copper tubes with hydrophilic aluminum foil for optimal heat transfer and corrosion resistance.

• System Components:

  • Gas-liquid separator, liquid receiver, and sight glass included

  • High/Low pressure gauges with manual reset

  • Optional suction accumulators for improved system balance

• Electrical Control:

  • Schneider LCD control panel with real-time monitoring

  • Includes phase loss, phase sequence, temperature protection, and compressor start delay logic

  • Fault code display with diagnostic alerts

• Sound Level:

  • Operating noise level of 66dB or higher (measured at 9 meters)

• Outer Dimensions (variable by configuration):

  • Length from 1700 mm to 2500 mm, width and height adjustable per model

• Shut-off Valve Size:

  • Configurable shut-off valve sizes based on flow requirements