Technical data, tools and notes for refrigeration and electronics technicians.

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Danfoss hermetic compressors capillary sizing chart mbsmpro
6, Jan 2026
Danfoss hermetic compressors capillary sizing chart

Technicians match Danfoss compressors to systems using precise capillary tube lengths from 4 to 10 feet, paired with specific oil charges like 150 ml for 1/12 HP models. Capillary numbers 0.26 to 0.31 ensure optimal refrigerant flow in LBP setups.​

Auto Draft mbsmpro
6, Jan 2026
Spot Welding Machine Circuit

Fabricators rely on the classic spot welding machine circuit featuring a half-wave rectifier for reliable AC-to-DC conversion. A heavy-duty step-down transformer boosts current for nugget formation, while an adjustable timer controls squeeze, weld, and hold phases precisely.​

Mitsubishi Electric PUHY-P250YKH-TH mbsmpro
6, Jan 2026
Mitsubishi Electric PUHY-P250YKH-TH

The Mitsubishi Electric PUHY-P250YKH-TH stands out as a powerful 25HP outdoor unit in the City Multi VRF series, designed for large-scale commercial HVAC applications. Featuring R410A refrigerant, it delivers 22.4 kW nominal cooling and 25.0 kW heating capacity with top-tier efficiency.​