F-Gas leak checks are legally required based on CO2 equivalent charge — not just system size.
The UK F-Gas regulations require periodic leak checks on any system containing fluorinated refrigerants.
Frequency depends on CO2-equivalent charge: 5 tonnes triggers annual checks, 50 tonnes six-monthly, 500 tonnes quarterly.
Records must be kept for at least five years and presented during ISO 14001 audits.
TM44 inspections are legally required every 5 years for buildings with >12kW of cooling capacity.
Auditors scrutinise HVAC documentation more heavily than almost any other discipline.
Constructionline Gold, CHAS, REFCOM Elite and SafeContractor — what each one proves.