Product Advantages
75 HP Capacity Class for Mid-Temperature Refrigeration & HVAC
Engineered for medium-temperature refrigeration and air conditioning applications utilizing R22, R404A, and R507, this 75 HP nominal class screw AC compressor delivers a large volumetric displacement of 155 CFM (260 m³/hr) at 60Hz and 129 CFM (215 m³/hr) at 50Hz. Its patented rotor profile geometry reduces internal gas bypass to ensure steady mass flow under demanding continuous operation.
Precision Stepless Capacity Modulation
Equipped with an advanced slide-valve control mechanism, the compressor provides continuous, stepless capacity regulation from 25% to 100%. Dynamic volume ratio optimization under partial load matches system output to facility thermal load, reducing energy consumption during low-demand cycles.
Factory Economizer Port for Peak Subcooling COP
Featuring a standard 1-3/8 in economizer connection, the unit integrates with liquid subcooling economizer circuits. Utilizing the economizer port increases total system refrigeration capacity and COP without incurring proportional power increases.
Oil-Pump-Free Drive System & Heavy-Duty Bearings
Built with high-durability SKF or NSK rolling bearings and a heavy-duty thrust bearing assembly, the internal mechanism relies on internal differential pressure for lubrication, eliminating the need for an external oil pump. An internal check valve prevents reverse rotor rotation at shutdown, while an external oil filter simplifies system maintenance.
Multi-Grid Electrical Compatibility & Motor Thermal Guard
Powered by a heavy-duty electric drive rated for 56 kW (60Hz) and 47 kW (50Hz) input power, the compressor supports Y-Δ and Direct-On-Line starting across standard global utility voltages. Embedded NTC thermistors paired with optional electronic modules (Kriwan or Paragon) provide continuous protection against electrical and thermal overload.
Standard & Optional Accessories:
- Standard: Terminal box, oil system components, motor protection device, capacity control device, stop valve
- Optional: Paragon control module / Kriwan protection module, oil separator, flanges, economizer, oil cooler, high-temperature expansion valve
Company Profile
Ruifujie is an international supplier of commercial HVAC machinery and industrial refrigeration equipment. We specialize in providing high-efficiency semi-hermetic screw, scroll, and reciprocating compressors designed for chillers, cold chain storage, and commercial air conditioning systems. Backed by 100% factory run testing, flexible trade terms, and expedited air or sea freight logistics, Ruifujie delivers replacement units and custom OEM hardware to engineering contractors and distributors worldwide.
Frequently Asked Questions
Q1: What applications and refrigerants are best suited for the 06TSM155 compressor?
A1: The 06TSM155 is optimized for medium-temperature commercial refrigeration and HVAC systems utilizing R22, R404A, or R507 refrigerants.
Q2: What is the nominal horsepower rating and motor power requirement for this model?
A2: The 06TSM155 belongs to the 75 HP compressor nominal class, with a rated motor input power of 56 kW at 60Hz and 47 kW at 50Hz.
Q3: Does the 06TSM155 require an external oil pump?
A3: No, the precision SKF/NSK bearing design and internal differential pressure circulation operate reliably without requiring an external oil pump.
Q4: How does the integrated economizer circuit benefit low or medium-temperature operations?
A4: Connecting an economizer loop via the 1-3/8 in port provides additional liquid subcooling, increasing net cooling capacity and system COP under heavy load conditions.
Q5: What standard lead times apply for single unit orders and bulk shipments?
A5: In-stock replacement units dispatch within 3 business days, while customized OEM configurations or containerized shipments dispatch within 10 to 15 business days.
