BMKH42M-NDG3 Owners Manual

Contents
1 Safety Precautions.................................................................................................... 1
2 Product Introduction................................................................................................. 3
2.1 Name of Main Parts............................................................................................................................. 3
2.2 Combinations for outdoor and indoor units .......................................................................................... 4
2.3 Rated working condition ...................................................................................................................... 5
2.4 The range of production working temperature...................................................................................... 5
3 Preparation before Installation .................................................................................. 6
3.1 Standard parts .................................................................................................................................... 6
3.2 Selecting installation site ..................................................................................................................... 6
3.3 Piping Connection ............................................................................................................................... 7
4 Installation Instruction.............................................................................................. 8
4.1 Outline and dimension of the outdoor unit ........................................................................................... 8
4.2 Installation of the Connection Pipe ....................................................................................................... 9
4.3 Air Purging and Refrigerant Charge..................................................................................................... 11
4.4 Electric Wiring ................................................................................................................................... 12
5 Troubleshooting ..................................................................................................... 14
6 The conditions listed below are not classified into errors.......................................... 15
7 Troubleshooting ..................................................................................................... 17
8 Maintenance .......................................................................................................... 18
8.1 Outdoor heat exchanger .................................................................................................................... 18
8.2 Drain Pipe ......................................................................................................................................... 18
8.3 Notice before Seasonal Use ............................................................................................................... 18
8.4 Maintenance after Seasonal Use ........................................................................................................ 18
8.5 Parts Replacement ............................................................................................................................ 18
9 After-sales Service ................................................................................................. 19