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

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L55AV and QD59H Refrigerator Compressor mbsmpro
18, Jan 2026
L55AV and QD59H Refrigerator Compressor

The L55AV and QD59H are cornerstone compressors in the domestic refrigeration industry, both rated at 1/6 HP. While the L55AV traditionally operates with R12, the QD59H is the modern R134a standard. This article provides deep technical data, electrical wiring diagrams, and professional comparison tables for field technicians and refrigeration engineers…

Compressor, Embraco, PW 5.5 K11W, 1/6 hp mbsmpro
5, Jan 2026
Compressor, Embraco, PW 5.5 K11W, 1/6 hp

The Embraco PW 5.5 K11W is a 1/6 HP Low Back Pressure (LBP) compressor designed for R12 refrigeration systems. Known for its reliability and dual-frequency 50/60Hz operation, this Brazilian-made unit delivers 133W of cooling capacity. Explore our deep dive into its electrical specifications, performance tables, and comparison with modern HVAC…