VETHY / FLEET AND OEM BUYER GUIDANCE
Get the exact service information before refrigerant work.
Refrigerant servicing requires the exact unit documentation and an appropriately qualified technician. A generic R410A article cannot establish the correct refrigerant, charge quantity or service procedure for every parking air conditioner.
Read the nameplate and supplied documents
Record model, voltage version, serial number and nameplate refrigerant information. Match these to the service instructions supplied for the unit. If the records disagree, resolve the discrepancy before work begins.
Current VETHY records identify R134a for VX3000SP and EcoMax 3S, and R410A for VS02-PRO. These are not interchangeable service labels.
Collect symptoms without guessing the charge
Describe the fault, ambient conditions, cooling behaviour, displayed code and recent installation or repair work. Poor cooling is a symptom, not proof that refrigerant should be added.
Provide photographs of the nameplate and installation. Keep previous service records, including any recorded refrigerant work, available to the technician.
Use a configuration-specific service plan
The service provider should confirm the appropriate equipment, procedure and documentation for the exact system. Follow applicable handling requirements and the manufacturer’s instructions.
This page deliberately gives no generic charging pressure, charge weight, refrigerant substitution or do-it-yourself repair sequence.
Keep the completed service traceable
Record what was found, what was changed, which documentation was used and the final operating observations. Investigate recurring faults rather than treating repeat additions as a maintenance schedule.
Use the support intake to request the appropriate model information.
Sources and specification records
Updated October 30, 2026. Model ratings follow the linked VETHY specification graphics. General technical sources explain principles; they are not certifications or tests of VETHY products.
FROM SELECTION TO A DEFINED PROJECT
Bring the vehicle brief.
Share the truck model, voltage, operating climate, installation photos and intended quantities. VETHY can review the proposed configuration and the evidence needed for your application.