380V/50Hz Three-phase Refrigeration Scroll Compressor JT90BCBY1L JT95BCBY1L JT90BHBY1L JT95BHBY1L JT1408CBY1L JT150BCBY1L

I. Core Models and Performance Parameters Overview

Series Difference Analysis: The BH series shares the same displacement platform as the BC series, but is equipped with higher-efficiency motor components. This allows for significantly reduced input power while delivering equivalent cooling capacity, achieving an average COP improvement of approximately 0.17~0.18 over the BC series. For year-round cooling or heavy-duty continuous operation scenarios, the energy-saving benefits of the BH series are particularly pronounced.

II. Core Product Advantages & Technical Features (Common to JT B Series)

1. High Efficiency & Energy Saving – Industry-Leading Asymmetric Scroll Technology

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  Proprietary Asymmetric Scroll Design: Utilizes Daikin's pioneering asymmetric scroll structure, combined with optimized suction gas distribution paths and low-deformation fixed scroll design, effectively reducing refrigerant leakage and superheat losses during compression.

  
  

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  Oil Film Sealing Mechanism: Relies on high-precision machining to create a dynamic oil film seal between scroll flanks, greatly enhancing compression efficiency. The overall COP remains at a high level of 3.1 ~ 3.3, with the BH version reaching up to 3.29, placing it in the top tier among fixed-speed scroll compressors.

  
  

2. Low Noise & Low Vibration – Creating a Quiet Operating Environment

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  No Suction/Discharge Valves: Eliminates the traditional piston or rotary compressor valve plate design, fundamentally removing metallic clicking noises from valve impact.

  
  

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  Non-Contact Orbiting/Fixed Scrolls: The orbiting and fixed scrolls maintain micron-level non-contact clearance during operation, resulting in pure sound quality. Measured noise levels are only 58~60dB(A), with extremely low vibration. This characteristic simplifies piping design during unit assembly and eliminates the need for bulky soundproofing materials, reducing material costs and assembly time.

  
  

3. High Reliability & Extended Service Life

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  Minimal Moving Parts: Scroll compressors have far fewer moving components than reciprocating piston compressors, eliminating reciprocating inertia forces and severe sliding impacts, thus reducing mechanical wear.

  
  

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  Robust Weather Resistance: Equipped with dry sleeve bearings and high-precision rolling bearings, along with a flexible compliance mechanism providing excellent liquid slugging tolerance. Even under harsh conditions like heat pump defrost cycles or high condensing temperatures, the compressor maintains stable volumetric efficiency, ensuring long-term safe operation.

  
  

4. Wide Voltage Tolerance

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  Specifically optimized for China's complex power grid environment. Both single-phase and three-phase versions support normal start-up and operation within a wide voltage fluctuation range of ±10% to ±15%. This is especially suitable for rural grids, remote areas, or industrial zones with unstable voltage, effectively reducing failure rates caused by abnormal voltage.

  
  

5. Compact Design & Installation Compatibility

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  Lightweight Construction: Features a slender, tall shell design. The 3HP model weighs only 29kg, and the 5HP model approximately 35.5kg, saving installation space and reducing shipping weight.

  
  

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  Standardized Base Plate: The BY1L 4-foot base is interchangeable with the Y1L (3-foot) and CY1L (special foot) bases of the same series. For retrofit projects, no modification of existing system piping or mounting bases is required, significantly reducing replacement costs and engineering complexity.

  
  

6. Excellent Heat Pump & Low-Temperature Heating Performance

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  Leveraging flexible compression chamber technology, the volumetric efficiency decay rate under low-temperature heating conditions is much slower than conventional models. Rapid heating start-up ensures strong warm-air delivery. This feature makes it widely used in northern commercial heat pump units and low-temperature air-source heat pump modules, offering significant advantages over traditional electric auxiliary heating.

  
  

7. Low System Integration Cost

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  Integrated Protection Design: The compressor includes built-in protection only for motor overheating. Other system-level protections (e.g., high/low pressure switches, discharge temperature protection) are configured by the OEM system. This ensures safety while granting manufacturers greater design flexibility.

  
  

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  Standard Port Sizes: The suction pipe diameter is standardized at φ19.1mm, perfectly compatible across the 3~5HP power range. This simplifies system integration piping design and inventory management, significantly reducing development costs.

  
  

III. Selection Logic & Application Scenario Differentiation Guide

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  For Ultimate Energy Savings & Continuous Operation (BH Series Recommended): If equipment runs over 12 hours daily or operates year-round without interruption, the BH version is the first choice, e.g., JT90BHBY1Lor JT95BHBY1L. Compared to the BC series, input power is reduced by approximately 5%~7% at the same cooling capacity, offering a short payback period and substantial long-term energy savings.

  
  

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  For Cost-Effectiveness & Higher Capacity Output (BC Series Recommended): If the project budget is limited and cooling demand slightly exceeds standard 3HP, JT95BCBY1Lis recommended. It offers about 5% more cooling capacity than the JT90 series with minimal price difference, providing excellent value.

  
  

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  For Specific Capacity Gap Filling (4.5HP Demand): If the system design requires cooling capacity between 12kW and 13.5kW, JT1408CBY1Lis the dedicated model (13200W), precisely filling the gap between 4HP and 5HP applications.

  
  

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  For Standard 5HP Applications (Economical Matching): When the target system cooling capacity is 14kW, directly select JT150BCBY1L(14000W). Its procurement cost is lower than the next tier JT160 (15000W), and its parameters accurately match actual demand, avoiding wasted cost from excess capacity.

  
  

IV. Typical Application Scenarios

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  Commercial packaged air conditioners (ducted units, high-static pressure ducts);

  
  

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  Air-cooled / water-cooled modular chillers;

  
  

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  Dehumidifiers and refrigerated air dryers;

  
  

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  Light cold storage and冷链 transport refrigeration units;

  
  

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  Northern "Coal-to-Electricity" commercial heat pump heating systems.

  
  

  

  
  

  

  
  

  

  
  

  

Note: Data in this document is based on standard rating conditions (ARI/AHRI standards). Actual performance may vary depending on system matching and operating environment differences.

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