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Air Conditioning & Centralised VRF Air Conditioning (CVAC)

Split System Air Conditioning
Many apartments are set up with their own individual split system air conditioner for heating and cooling. 

A split system air conditioner consists of two main components, an indoor unit and an outdoor unit, which are connected by pipes and wires. The system runs on your apartment electricity and works by transferring heat between the indoor and outdoor units. In cooling mode, the indoor unit absorbs heat from the room, passes it to the outdoor unit, then the heat is released to the outside air. In heating mode, the process is reversed. The cycle repeats until the desired temperature is reached.

Energy On will invoice you for the electricity consumption of the Split System Air Conditioning that is recorded on your individual electricity meter. This will be the same as other appliances, such as your fridge, lighting etc.

Centralised VRF Air Conditioning (CVAC)
Some apartments have been developed with ‘centralised VRF* air conditioning’ (CVAC) for heating and cooling.

The CVAC system is an advanced, energy efficient form of centralised heating, ventilation, and air conditioning that allows refrigerant to flow according to the heating and cooling demands of different Occupiers. This allows multiple indoor units to be connected to a single outdoor unit that is centrally located, usually on the roof. Occupiers will be charged for their consumption. This will be calculated periodically utilising apportionment software that records each premises’ consumption.

Please note, there is no physical meter for each premises to measure CVAC consumption.

Energy On will invoice you for your consumption of 'centralised VRF* air conditioning', based on the apportionment software's allocation of your usage. 

*VRF stands for Variable Refrigerant Flow, and is an air conditioning system that efficiently distributes both cooling and heating from a single outdoor unit to multiple indoor units, saving energy in the process. This system allows for better temperature control in different parts of the building, while also sharing energy and reducing costs.


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