The living environment in Hong Kong is generally small. Some housing estates are designed with only one single air-conditioner hood. Users who want to divide their flats into several rooms are required to install two outdoor units of air-conditioner on one air-conditioner hood. Resulting in insufficient heat dispersion space, hence, units overloading and affecting the cooling performance of the units.

Examples of current inappropriate installation

Installing two outdoor units on the same air-conditioner hood will cause the units overload.

New Solution

Only 1 outdoor unit is needed for operating 2 indoor units!

Better Cooling Performance

Two sets of split-type air conditioner

Installing two sets of split-type air conditioners on the same AC hood will cause the outdoor unit to overload due to it absorbs the hot air dispersed by the other unit. Air conditioners need more time to reach the ideal temperature

One set of Smaller multi-split air conditioner

Smaller multi-split air conditioner can operate two sets of indoor units with only one set of outdoor unit. The outdoor unit can operate normally.


*Comparison between two sets of LU9ZKA and CU-2LU18BBA at Panasonic Amenity Room. Distance of two outdoor units of LU9ZKA is 7cm. Outdoor temperature: 35℃. Remote control setting: Cool, 25℃, Hi Fan. Up/Down vane: Step 3. Left/Right vane: II

^According to our laboratory testing result, when using the above installation method, the cooling performance of one set of Smaller multi-split air conditioner is 14% faster than two sets of split-type air conditioner.

Better Energy saving

Two sets of split-type air conditioner

Installing two sets of split-type air conditioners on the same AC hood will cause the outdoor unit to overload due to it absorbs the hot air dispersed by the other unit. Under this circumstance, compressor need to work harder to compress refrigerant more to reach the ideal temperature.

One set of Smaller multi-split air conditioner

Smaller multi-split air conditioner can operate two sets of indoor units with only one set of outdoor unit. The outdoor unit can operate normally.

^According to our laboratory testing result, when using the above installation method, the energy consumption of one set of Smaller multi-split air conditioner is 27% lower than two sets of split-type air conditioner.

All-in-one Wi-Fi Smart Control#

#Installation of Wi-Fi Adapter CZ-TACG1 is required

Compatible Device and Browsers

  1. IOS 12.0 or above
  2. Android 7.1 or above

Smaller Multi-Split Air Conditioner

Flexible combination of Indoor Units (Maximum output: 2HP)

Recommended combination
3/4 HP + 1.5 HP
1 HP + 1.5 HP​
1 HP + 1 HP

Other combinations are also available, please refer to the

for further details