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Large 1 single cooling (copper tube) fixed frequency level 5 self-installation

Installation of 1 large single cooling (copper tube) fixed frequency 5-stage package

1.5 pieces of single cooling (copper pipe) fixed frequency level 5 self-installation

1.5 Single Cooling (Copper Tube) Fixed Frequency Class 5 Package Installation

1.5 pieces of cold and warm high-end models (frequency conversion) new three-level energy efficiency self-installation

Installation of 1.5 New Level 3 Energy Efficiency Packages for Cold and Warm High Matching (Frequency Conversion)

1.5 pieces of cold and warm high-end (frequency conversion) new level energy efficiency self-installation

Installation of 1.5 Cold and Warm High Matching (Frequency Conversion) New Class I Energy Efficiency Package

2 cold and warm high-end models (frequency conversion and energy saving) new level of energy efficiency self-installation

Installation of 2 new level energy efficiency packages for high-end heating and cooling (frequency conversion and energy saving)