SCROLL TECH ST-R125 KE-TF5-3PH-220V60HZ-R407 COMPRESSOR

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SCROLL TECH ST-R125 KE-TF5-3PH-220V-60HZ-R407

Scroll Compressor (High capacity ~10 HP class / ~120,000–125,000 BTU/h)

This model belongs to the ScrollTech ST-R125 series, designed for medium-to-large commercial HVAC systems using R407C refrigerant.

Based on the ST-R125 platform technical data, it is in the ~10 HP scroll compressor class, comparable in capacity to Copeland ZR125 series compressors.


Key Specifications (ST-R125 TF5 version)

  • Brand: ScrollTech
  • Model: ST-R125 KE-TF5
  • Compressor type: Hermetic scroll
  • Refrigerant: R407C
  • Power supply: 3-Phase, 220V, 60Hz (TF5 low-voltage version)
  • Capacity: ~120,000–125,000 BTU/h class
  • Motor class: ~10 HP
  • Oil type: POE oil (R407C compatible)

Verified technical reference (equivalent class)

Industry-equivalent compressor data (same capacity range) shows:

  • Nominal capacity: ~125,000 BTU/h
  • Displacement: ~29 m³/h class
  • Suction line: 1-3/8”
  • Discharge line: 7/8”

Copeland equivalent: ZR125KCE-TF5 series (same BTU class, same piping size, same application range)


Typical Applications

  • 10 ton commercial split AC systems
  • Rooftop packaged units
  • Small air-cooled chillers
  • Large VRF auxiliary fixed-speed circuits

Electrical Notes (TF5 – 220V 3 Phase)

  • Requires 3-phase 220–230V supply
  • Must use:
    • Proper contactor
    • Thermal overload protection
    • Correct capacitor is NOT used (scroll is 3-phase direct motor)
  • Must ensure correct phase rotation (important for scroll compressors)

Key Features

  • High efficiency scroll design
  • Low noise & vibration
  • Internal motor protection
  • Stable operation under variable load
  • Compatible with R407C (POE oil system)

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