Gree NCHS1B(U) - Default Chapter; Table of Contents

Contents
1 Safety Precautions ............................................................................................................................. 1
2 Product Introduction ......................................................................................................................... 2
2.1 Names of Main Parts ........................................................................................................................... 2
2.2 Parameter table .................................................................................................................................... 3
3 Preparation before installation ......................................................................................................... 3
3.1 Standard Accessory ............................................................................................................................. 3
3.2 Installation Site ...................................................................................................................................... 4
3.3 Selection Requirement for Communication Wire ............................................................................ 5
3.4 Wiring Requirment................................................................................................................................ 7
4 Installation Instruction ...................................................................................................................... 7
4.1 Installation of Cooling and Heating Mode Exchanger ..................................................................... 7
4.1.1 Dimension of Outdoor Unit and Mounting Hole Position ......................................................................... 7
4.1.2 Suspend the mode exchanger ................................................................................................................... 11
4.2 Pipe Connection ................................................................................................................................. 13
4.2.1 Installation instruction for silencer ............................................................................................................. 13
4.2.2 Notices for welding ...................................................................................................................................... 15
4.2.3 Precautions for the Installation of Connection Pipe ................................................................................ 16
4.2.4 Selection of Y-type branch .......................................................................................................................... 17
4.2.5 Thermal insulation for pipeline ................................................................................................................... 17
4.2.6 Support and protection of pipeline ............................................................................................................ 19
4.2.7 Size requirement for branch pipe and piping ........................................................................................... 21
4.3 Installation and Test for Drainage Hose .......................................................................................... 23
4.3.1 Precaustions for the Installation of Drainage Hose................................................................................. 23
4.3.2 Installation of Drainage Hose ..................................................................................................................... 24
5 Cable Connection ............................................................................................................................ 25
5.1 Connection of Cable and Terminal of Wiring Board ...................................................................... 26
5.2 Connect Power Cord...........................................................................................................................27
5.3 Conenct Communication Wire of Indoor Unit and Outdoor Unit ................................................. 29
6 Routine Maintenance ...................................................................................................................... 30
6.1 Notice before Seasonal Use ............................................................................................................. 30
6.2 Maintenance after Seasonal Use ..................................................................................................... 31
7 Troubleshooting .............................................................................................................................. 31