Whenever air conditioner system depletes the gas, it requires top up of the gas.
There are many types of gas, 2 of which are commonly used for residential split air conditioner system:
- R22 are normally used for the non-inverter system.
- R410A are normally used for the inverter, VRV & VRF system.
Note : R22 and R410A cannot be mixed and they are used specially for each of the system. Proper operation is not possible if the types of refrigerant are not the designated type.
R22 is a single hydro-chlorofluorocarbon (HCFC) compound. It has low chlorine content and ozone depletion potential.
R22 will no longer be manufactured from year 2010. Only recycled or remaining stock of R22 can be used.
R410A was developed as a replacement to R22, which will be phased out soon in response to international environmental concerns. Plus : R410 is an environmentally friendlier refrigerant which is chlorine-free, non-inflammable, Non-CFC, environmentally friendly and energy efficient refrigerant.