The announcement comes in the wake of Mitsubishi Electric that also approved the use of alternative jointing and pipework methods on their heating and cooling systems. The news will be a relief for companies like Reflok that have joint systems that use pressure and not heat to connect air conditioning or heat pump units together.
The Reflok system uses aluminium joints and pipe instead of copper. Contractors like using it because the system saves a lot of time during the installation and, because there are no flames used when joining pipes together, it is an ideal solution in sites where 'hot-works' are not permitted. This is an advantage if there are flammable materials on site.
Daikin is, however, enforcing a number of rules for the newly approved jointing and pipework methods to comply with various regulations. For example, it must abide by F-Gas regulations on refrigerant leaks and safety regulations. Refnet joints used on the Daikin systems have to original parts.