What it actually is
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Model base: ZR250KC (Copeland Scroll)
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Variant: TW5 motor version
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“COMP-25TR” = 25 Ton Refrigeration (nominal system rating)
? Key Technical Specs (ZR250KC TW5)
Based on Copeland catalog data for ZR250KC TW5:
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Cooling capacity: ~250,000 BTU/h
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Tonnage: ~20–21 TR (nominal), sometimes marketed up to 25 TR depending on conditions
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Horsepower class: ~20 HP
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Voltage: 380–420V / 3-phase / 50Hz (also 460V / 60Hz versions exist)
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Refrigerants:
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Oil type: POE (polyolester)
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Displacement: ~66.6 m³/h
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Weight: ~139 kg
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LRA (starting current): ~225 A
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COP: ~3.3–3.4 range
? Source data confirms:
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250,000 BTU/h capacity class for ZR250KC series
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20–21 HP scroll compressor platform with similar electrical and mechanical specs
⚙️ What “TW5” means
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It refers to a motor / winding configuration
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Mainly affects:
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Starting current behavior
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Internal protection setup
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Electrical compatibility with certain control panels
? Typical use
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20–25 ton packaged AC systems
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Large AHUs (Air Handling Units)
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Chillers (light/medium commercial)
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Cold rooms (large capacity systems)
⚠️ Important clarification
Even though it’s sometimes labeled “25TR”, in real HVAC design:
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Real operating capacity depends on:
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evaporating temperature
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condensing temperature
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refrigerant used
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system efficiency
So:
? It is not a fixed 25 ton machine
? It is a ~20 ton base compressor often used in 20–25 TR systems