Start with the model on the old unit. BecSpec matches its Australian GEMS registration to current lower-GWP models with the same registered capacity, phase, cycle and mounting criteria.
A result is a specification-match candidate, not proof that a new system can replace the old one physically or reuse its pipework, wiring or other installation components. Those checks still need the manufacturer documentation and an appropriately qualified installer.
Capacity alone is too weak. Identifying the old registered model lets BecSpec retain its heating/cooling cycle, electrical phase, mounting arrangement and registered capacity before looking for current candidates.
The finder searches current lower-GWP candidates represented in the Australian register, including R32, R290 and R454B where the evidence and matching rules allow them. It does not claim refrigerants are interchangeable.
Open the split-system specification matcher · How matching works · Data & sources · Limitations