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

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LG MA62LCEG compressor specifications R134a 1/5 hp LBP mbsmpro
18, Jan 2026
LG MA62LCEG compressor specifications R134a 1/5 hp LBP

The LG MA62LCEG is a reliable hermetic reciprocating compressor designed for low back pressure (LBP) applications using R134a refrigerant. Rated at approximately 1/5 HP, it delivers 174W (596 BTU/h) cooling capacity with 127W input power and a solid COP of 1.38.

SECOP SC21G COMPRESSOR mbsmpro
11, Jan 2026
SECOP SC21G COMPRESSOR

Secop SC21G is a high-performance hermetic reciprocating compressor designed for commercial refrigeration and freezing applications using R134a refrigerant. This guide covers detailed specifications, technical parameters, and installation requirements for 220-240V/50Hz systems at up to 1.3 amperes.

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.​

Scroll Compressor Internal Components Explained mbsmpro
4, Jan 2026
Scroll Compressor Internal Components Explained

When technicians open a scroll compressor casing, the real engineering lives in internal mechanisms invisible at first glance: the floating seal preventing vacuum damage, the motor protector monitoring temperature and amperage, the pressure relief valve, the discharge check valve preventing reverse rotation, and the optimized bearing system. Understanding these core…

Bitzer 4J-13.2Y-40P semi-hermetic mbsmpro
28, Dec 2025
Bitzer 4J-13.2Y-40P semi-hermetic

The Bitzer 4J‑13.2Y‑40P is a semi‑hermetic reciprocating compressor designed for demanding commercial refrigeration applications. Its nameplate provides critical information for installers, including voltage ranges of 380–420 V at 50 Hz and 440–480 V at 60 Hz, running current, starting current, displacement flow and maximum permissible shell pressures.

Copeland ZB50KCE Scroll Compressor  mbsmpro
27, Dec 2025
Copeland ZB50KCE Scroll Compressor 

copeland zb50kce scroll compressor 7 hp 11.9 kw polyester oil nameplate data Mbsmgroup mbsmpro.com

Mbsm pro private media Copeland
23, Dec 2025
 Copeland-15hp

The photos show a Copeland condensing unit on a steel base, with a semi‑hermetic compressor, air‑cooled condenser and vertical liquid receiver designed for cold room applications. This type of refrigeration unit is widely used in commercial food storage because it delivers stable temperature control, good energy efficiency and straightforward maintenance…