A two-pipe zoned system designed for heat pump operation
(Nominal 22.4 – 150.0kW cooling / 25.0 – 168.0kW heating).
The CITY MULTI Y-Series (for large applications) makes use of a two-pipe refrigerant system, which allows for system changeover from cooling to heating, ensuring that a constant indoor climate is maintained in all zones. The compact outdoor unit utilizes an inverter-driven compressor for effective energy use. With a wide line-up of indoor units connected to a flexible piping system, the CITY MULTI Y-Series can be configured to suit diverse applications. Up to 50 (Y-Series) indoor units can be connected with up to 130% connected capacity to maximize engineering design options. This feature allows easy air conditioning in each area with convenient individual controllers.
All City Multi outdoor units as standard come with Blue Fin treatment to protect the aluminium heat exchanger fins from urban environment pollutants.
“BS” coating can be applied to the outdoor units as an option for additional protection in sea salt environments.
The flat-tube heat exchanger delivers high heat exchange efficiency. The use of flat tubes increases the number of piping stages while maintaining the same size of heat exchanger. The inside of the tube is divided into thin compartments to increase the area of contact between the refrigerant and air, and thereby increase heat exchange effectiveness and significantly improve energy-saving performance. The flat-tube heat exchanger improves heat exchange effectiveness by approximately 30% compared to round-tube heat exchangers.