The MADEL KCA‑SUB is an electronic zoning controller designed to manage up to six independent air‑conditioning zones from a single ducted unit. The image shows the KCA‑SUB installed in a junction box with its power, relay and sensor terminals visible, offering HVAC technicians a compact and versatile solution for sub‑zone…
In many metalworking, HVAC and automotive workshops, an electrostatic paint sprayer has become the secret weapon for achieving premium finishes with less paint and less mess. This compact mobile system charges each droplet of paint so it is strongly attracted to grounded metal parts, wrapping around complex shapes and cutting…
The Carel DN33V9MR20 is a compact universal electronic controller designed for DIN‑rail mounting in professional HVAC and refrigeration panels. It offers a wide low‑voltage power‑supply range, two analogue and two digital inputs, and a robust relay output with buzzer and infrared receiver, delivering reliable temperature management in demanding applications.
On the faded nameplate of this weathered compressor shell, one line stands out with absolute clarity: CAJ9480T – R22/R502 – Made in France. It is the unmistakable signature of a Tecumseh L’Unité Hermétique fully hermetic compressor, a workhorse still beating quietly inside countless small cold rooms and refrigerated cabinets in…
The picture shows a refrigeration technician holding several tubular temperature probes and a small white connector in front of a heavily frosted evaporator, capturing the exact moment of diagnosing a sensor fault in a no‑frost fridge or deep freezer. This real‑world scene raises a key question: can Unionaire sensors be…