Refrigerant Charging Systems
for Commercial/Domestic Refrigeration and Air Conditioning

VTech’s refrigerant charging equipment is designed to meet the highest standards for speed and accuracy while providing a user-friendly interface and a large selection of optional features. We analyze each project based on the end user’s requirements and provide our expertise to optimize process and equipment applications.

VTech’s refrigerant charging boards can be supplied as standalone units or part of turnkey installations, such as for flammable refrigerant projects where we supply all safety equipment as well as safety and engineering consulting.

For specific Commercial Refrigeration applications, VTech has developed equipment combining pre-evacuation, leak detection and refrigerant charging combined in one single unit (All-in-One).

VTech’s refrigerant charging systems for R290 include single or multiple refrigerants, even combining Hydrocarbon, HCFC and HFO refrigerants.

Another variable impacting the design of today’s refrigerant charging systems is the introduction of Hydrocarbon refrigerants, which are flammable in nature. Charging equipment, therefore, must incorporate safety systems in accordance with current regulations. Please refer to the product items below for an overview of VTech’s equipment offerings for flammable vs. non-flammable refrigerants.


Refrigerant Types
  • HFC & HCFC (R134a, R404a, R410a, R407c) and blends
  • Hydrocarbons (R290, R600A, R170) and blends
  • CO2 (R744)
  • HFO (R1234yf)
  • Others on request
Refrigerant Metering Technology
  • Flow Transducer
  • Volumetric
  • Mass-flow
Refrigerant Charging Speed
  • Up to 5.3 oz/s (150g/s) depending on the application
Refrigerant Charging Accuracy
  • ± 0.017 oz (0.5 g) < 3.5 oz (100 g) / ±0.5% > 3.5 oz (100 g)
Additional optional functions
  • Pressure Decay Leak Test
  • Tracer Gas Charging
  • Refrigerant Recovery
  • Oil Charging
Control System
  • PLC, PC
User Interface
  • Touch Screen
Product Applications
  • Commercial Refrigerators
  • Domestic Refrigerators
  • Air conditioners (unitary to rooftop)
  • Scientific (Ultra-low temperature freezers, centrifuges, etc.)
  • Water Coolers
  • Display cases
  • Food prep
  • Walk-in coolers
  • Heat pumps
  • Pool heaters
  • Sensitive electronics cooling
  • Chillers
  • Construction equipment
  • Beverage Systems
  • Vending machines

Product Items

Refrigerant Charging Equipment

  • Flammable Refrigerant Charging Equipment

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    VTech supplies turn-key installations or individual equipment for flammable refrigerant charging. This includes regulatory compliance as well as engineering support during the whole life of the project.

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  • Non-Flammable Refrigerant Charging Equipment

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    VTech’s Charging Equipment line for non-flammable refrigerants (e.g. R134a, R404a, R513a, R410a, R407c) consists of VTech 100 series for low to medium productivity (typically in Commercial Refrigeration) and VTech MRC for medium-high production rates (Domestic Refrigeration and A/C). Please inquire with VTech for help in selecting the most suitable equipment for your application or consult our Markets section.

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  • Refrigerant Cylinder Filling Equipment

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    Refrigerant Cylinder Filling requires high-speed automatic charging of multiple refrigerants from bulk tanks to smaller cylinders for distribution. Virtually any refrigerant gas can be handled.

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