- A Single split system consists of 1 outdoor unit and 1 indoor unit.
- A Multi-split system consists of 1 outdoor unit and multiple indoor units
The refrigerant in the air-conditioning system will never be totally depleted unless there’s a leak; therefore there is no need to top up refrigerant on a regular basis.
CU which also means Condensing Unit, are your outdoor units usually on a bracket or ledge blowing out hot air.
Water leakage from FCU can be caused by a few possible reasons but the usual cause is the clogged water condensate drainage piping.
These strange noises may be caused by dirt trapped in the blower, broken fan blower or faulty fan motor bearings.