Technical Guidelines and Service Manuals

This technical guideline offers Unicla compressor selection charts to help technicians with good system design. In professional system design, both theoretical calculations and test vehicles in environmental chambers are used, so that heat loads can be tightly controlled.
This booklet helps technical personnel ensure correct fitting procedures and system design parameters for the fitting of Unicla UX330 Series compressors. Following these guidelines will help maximise the life of the compressor and associated air conditioning system components.
The suction line in an air-conditioning system requires careful design and sizing to ensure adequate refrigerant flow. Pressure and temperature in the line can be used to diagnose system performance issues, and this booklet explains the main system features affected by poor suction line performance and how to overcome them.
The suction line in an air-conditioning system requires careful design and sizing to ensure adequate refrigerant flow. Pressure and temperature in the line can be used to diagnose system performance issues, and this booklet explains the main system features affected by poor suction line performance and how to overcome them.
This booklet contains advice on oil and lubrication performance and behaviour and offers best practices for both service personnel in the field and engineers designing new systems. Understand oil as a lubricant and its different properties when used in automotive air conditioning and direct drive transport refrigeration systems (MVAC and TRAC/R).
This technical bulletin explains the importance of a good suction line. Diagrams show the adverse effects on a system caused by incorrect pipe or hose size, excessive bends or turns, or a fault in the line between the evaporator and compressor. It also shows recommended hose and fitting sizes to avoid pressure drop in the line.
The Unicla engineering team undertook a test to scientifically support anecdotal feedback from customers that their ‘system runs better and more efficiently’ using Unicla 170 and 200 Series compressors. We tested a Unicla 10 cylinder swashplate compressor and a comparable competitor product, with results showing the Unicla compressor used 16% less power consumption, had better COP, and significantly reduced overall running costs.
Automotive AC systems can be contaminated with hydrocarbon refrigerants, resulting in potential risks including leaks, vehicle fires or explosions. This visual flowchart helps dealers safely manage these risks, showing a step by step outline of recommended best practice service procedures.
A guide to basic and advanced leak detection in HVAC systems. The techniques outlined in this manual help refrigeration and AC service mechanics master the art of leak detection, and solve customer problems more effectively.

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