Indoor Parallel Unit with Semi-Hermetic Piston Compressor (15–180HP)

The indoor parallel unit equipped with a semi-hermetic piston compressor is an advanced refrigeration solution tailored for medium to large-scale cold storage systems. Designed for indoor installation, this unit offers reliable performance, modular expandability, and excellent control capabilities. It is engineered to accommodate multiple compressor heads, ensuring efficient parallel operation with optimized energy use.

Key Features:

• Compressor Type: Semi-Hermetic Piston Compressor

• Cooling Method: Low temperature with head fan / Enhanced low temperature with gas injection

• Evaporating Temp: -40°C to +10°C

• Ambient Temp Range: -25°C to +48°C

• Oil Type: BSE32, Ester Oil

• Oil Charge: Based on configuration – pre-charged or separated

• Condensers: Optional – not included with unit (indoor-only)

• System Components:

  • Liquid Receiver: Optional

  • Oil Separator: Y

  • Suction Accumulator: Y

  • Gas-Liquid Separator: Y

  • Sight Glass, Filter Drier, Solenoid Valve: Y

  • High and Low Pressure Gauge: Y

  • HPLP Pressure Switch: Saginomiya, automatic reset high pressure, 30 bar protection

• Control Board: Intelligent PLC controller (optional expansion: load balance, remote start, interlock logic, etc.)

• Installation Notes: Exhaust-check valve required; liquid pipe size matched to compressor