One published supply string, three fields
When the source explicitly labels a value 220/1/50 V/ph/Hz, Cooling Index displays 220 V, 1 phase and 50 Hz separately. A missing phase does not erase known voltage or frequency.
Options are not continuous ranges
50/60 Hz means the source lists those two options. 220/380 V is not treated as every voltage between 220 and 380 V. A source explicitly stating 187–253 V describes a range. Always open the cited page to check which configuration or version a value belongs to.
A filter is a shortlist, not a wiring recommendation
The 60 Hz collection includes published 60 Hz and 50/60 Hz records. It does not infer 115 V, 230 V, phase, local certification or equipment suitability. When several voltages or configurations appear in a source, verify their pairing with the manufacturer.
Cooling output is different from electrical input
Cooling capacity and input power may both be shown in watts, but describe different fields. They are not merged. Unit display conversion changes only the unit, not the parameter meaning or its test condition.
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Field definitions and evidence policy: Data methodology.