Gree KM48H4O Service Manual page 4

Super Free Match
Service Manual
3 OUTDOOR UNIT INSTALLATION ................................................................................ 57
3.1 Precautions for R410A ......................................................................................................... 57
3.2 Precaution for Installation .................................................................................................... 57
3.3 Precaution for Operation Test ............................................................................................. 57
3.4 Names of Main Parts ............................................................................................................ 57
3.5 Parts and Components of Unit .............................................................................................58
3.6 Selection of Installation Location ........................................................................................58
3.7 Outline Dimension of the Outdoor Unit ..............................................................................59
3.8 Installation and Servicing Space ..........................................................................................59
3.9 Installation of the Outdoor Unit .......................................................................................... 60
4 INDOOR UNIT INSTALLATION .................................................................................... 61
4.1 Installation of Wall Mounted Type ..................................................................................... 61
4.2 Installation of Duct Type ...................................................................................................... 63
4.3 Installation of Cassette Type ................................................................................................ 71
4.4 Installation of Floor Ceiling Type ...................................................................................... 76
4.5 Installation of Console Type ............................................................................................... 79
5 BU MODULE INSTALLATION ....................................................................................... 84
5.1 Precaution for Installation .................................................................................................... 84
5.2 Names of Main Parts ............................................................................................................ 84
5.3 Selection of Installation Location ....................................................................................... 85
5.4 Outline Dimension and Servicing Space of FXA2A-D ...................................................... 86
5.5 Outline Dimension and Servicing Space of KM21-BBU12-3 ............................................ 87
5.6 Outline Dimension and Servicing Space of FXA3A-D .......................................................88
5.7 Outline Dimension and Servicing Space of KM21-BBU13-3 ........................................... 89
6 REFRIGERATION PIPING WORK ................................................................................. 90
6.1 Allowable Length and Drop Height of Connecting Pipe ................................................... 90
6.2 Dimension of Connecting Pipe ............................................................................................90
6.3 Connection of Branch Pipe .................................................................................................. 91
6.4 Design Requirements for Oil Trap ...................................................................................... 91
6.5 Connection of Outdoor Unit Refrigerant Pipe .................................................................... 93
6.6 Installation of Piping Adapter .............................................................................................. 93
6.7 Precaution for Connection ................................................................................................... 95
6.8 Leak Test ..............................................................................................................................97
6.9 Vacuum Operation ............................................................................................................. 97
6.10 Refrigerant Charging ...................................................................................................98
7 Electrical Wiring Work....................................................................................................... 101
7.1 Wiring Connection ............................................................................................................. 101
7.2 Requirements of Power Circuit and Cable ........................................................................ 101
7.3 Ground Requirements ........................................................................................................ 102
7.4 Precautions of Electrical Wiring Work ............................................................................. 102
7.5 Precaution of Laying Wires .............................................................................................. 102
7.6 Electrical Wiring Work for Outdoor Unit ......................................................................... 103
7.7 Electrical Wiring Work for BU Module ........................................................................... 103
7.8 Instructions for DIP Switch ................................................................................................ 105