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

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Kelvinator Inverter AC, Error mbsmpro
12, Jan 2026
Kelvinator Inverter AC, Error

When your Kelvinator inverter split air conditioner displays an error code (E1, E2, E3, F1, F2, F3, etc.), it is signaling a specific system fault. This comprehensive guide explains every major error code—from sensor failures and communication breakdowns to compressor and power module protection triggers—and provides professional troubleshooting steps.

Transistor IGBT, G80N60UFD, 600 V, 80 A mbsmpro
12, Jan 2026
Transistor IGBT, G80N60UFD, 600 V, 80 A

The G80N60UFD is an ultrafast 600 V, 80 A insulated‑gate bipolar transistor in a robust TO‑3P package, designed for high‑efficiency industrial inverters. Combining MOSFET‑like gate control with low saturation voltage and a co‑pack fast recovery diode, it is ideal for motor drives, induction heating, welding machines, UPS and PFC stages.

MCB miniature circuit breaker thermal magnetic protection mechanism mbsmpro
12, Jan 2026
MCB miniature circuit breaker thermal magnetic protection mechanism

An MCB (Miniature Circuit Breaker) is an automatic electrical switch that protects circuits from overloads and short circuits. Using dual thermal-magnetic mechanisms, MCBs detect abnormal currents and instantly disconnect power to prevent equipment damage and fire hazards. Compact, reliable, and essential for modern electrical safety.

Auto Draft mbsmpro
12, Jan 2026
ACME Flare Types

textRefrigeration compressor thread connections are critical components in HVAC systems. Understanding ACME flare specifications, including 7/8" suction, 5/8" discharge, and 1/2" process ports, ensures proper equipment selection, safe installations, and efficient cooling operations in industrial refrigeration applications.

STC-9200 Temperature Controller mbsmpro
12, Jan 2026
STC-9200 Temperature Controller

"The STC-9200 digital temperature controller is a professional-grade thermostat designed for industrial refrigeration and freezing applications. This advanced multi-stage controller features precise temperature regulation from -50°C to +50°C, integrated defrost management, and robust relay capacity for compressor control, making it ideal for commercial cooling systems and display cases."

The 5 Pillars of Refrigeration Diagnosis: Professional HVAC mbsmpro
11, Jan 2026
The 5 Pillars of Refrigeration Diagnosis: Professional HVAC

Professional HVAC technicians rely on five critical diagnostic pillars: suction pressure, discharge pressure, superheat, subcooling, and saturation temperature relationships. Mastering these five measurements eliminates guesswork, accurately identifies refrigeration problems, and ensures proper system troubleshooting without expensive callbacks or equipment damage.

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.

Electrical unit conversion reference table: HP to watts, KVA to amps, tons refrigeration to kW mbsmpro
9, Jan 2026
Electrical unit conversion reference table: HP to watts, KVA to amps, tons refrigeration to kW

Electrical unit conversions are essential knowledge for HVAC technicians and refrigeration engineers. This comprehensive reference guide provides quick access to conversion formulas, technical specifications, and practical examples for comparing power ratings, calculating system requirements, and optimizing equipment selection across different measurement standards.

Mitsubishi Ashiki MUY-JX22VF electrical technical data interpretation mbsmpro
9, Jan 2026
Mitsubishi Ashiki MUY-JX22VF electrical technical data interpretation

Master the skill of reading AC nameplate specifications with this comprehensive technical guide. Learn to decode model numbers, interpret voltage and amperage ratings, identify refrigerant types, calculate cooling capacity, determine tonnage, and understand all electrical information displayed on your air conditioning unit nameplate.

ORIENT Inverter AC Error Codes mbsmpro
9, Jan 2026
ORIENT Inverter AC Error Codes

Discover comprehensive troubleshooting for ORIENT inverter AC systems. This complete error code guide covers E-series, F-series, P-series, and L-series fault codes with detailed solutions for sensor issues, communication failures, compressor problems, and electrical protection systems affecting your cooling performance.