The drive to supplant R-404A with refrigerants having GWPs under 2500 begun before the 2014 F-gas Regulation, with R-407A and R-407F being broadly utilized. All the more as of late commercial refrigeration with GWPs around 1400 to 1500 are being utilized like R-448A, R-449A, R-407H. Retrofit experience has shown decreases in energy utilization with these refrigerants.

For bigger general stores, energy use is regularly considered overall, including the structure HVAC, water use, lighting and the business refrigeration, with heat recuperation being a vital supporter of limiting energy utilization especially where space warming is an occasional necessity. For more modest stores heat dismissal from show cases can add to extra cooling stack or give valuable warmth in cooler climatic conditions. Huge stores have brought together frameworks as they normally accomplish preferred energy effectiveness over independent showcase cases and gathering units and take into account viable warmth recuperation and frameworks to improve the energy utilization of the general store. A machine room contains frameworks that work at two temperature ranges, - 10 and - 15°C for the safeguarding of new items (medium temperatures) and the other at around - 35 to - 38°C for frozen items (low temperatures).

A course framework associates the low-temperature circuit to the medium-temperature circuit utilizing an evaporator-condenser. The refrigerants at the two degrees of temperature can be either unique or indistinguishable relying upon the necessities. Backhanded frameworks have an optional circuit containing a warmth move liquid normally utilized for the medium temperature level. A course framework for the low temperature level can be joined with a backhanded framework for the medium temperature level bringing about the essential refrigerant charge being kept to the machine room and related regions.