3.5 Holes Introduction ................................................................................................................................................38

3.6 Checking the Nitrogen Pressure ............................................................................................................................39

3.7 Securing an Indoor Unit ........................................................................................................................................40

3.8 Securing an Outdoor Unit .....................................................................................................................................42

3.9 Connecting Refrigerant Pipes ................................................................................................................................43

3.10 Connecting Water Pipes ......................................................................................................................................48

3.10.1 (Optional) Connecting the Humidifier Water Inlet Pipe .....................................................................................48

3.10.2 Connecting the Condensate Drainpipe ..............................................................................................................50

3.11 Connecting Cables ..............................................................................................................................................52

3.11.1 Cables to be Connected ....................................................................................................................................52

3.11.2 Connecting the Indoor Unit Power Cable ..........................................................................................................53

3.11.3 (Optional) Connecting the Indoor Unit Signal Cables .......................................................................................53

3.11.4 Connecting the Outdoor Unit Power Cable and the Signal Cable Between Indoor and Outdoor Units ................54

3.11.5 (Optional) Connect Teamwork and Monitoring Cables......................................................................................54

3.11.6 Cable Routes....................................................................................................................................................56

3.12 Leakage Test with Nitrogen ................................................................................................................................57

3.13 Vacuumization ....................................................................................................................................................59

3.14 Verifying the Installation .....................................................................................................................................61

4 Power-On Commissioning .................................................................................................... 62

4.1 Controller Description ..........................................................................................................................................62

4.2 Equipment Power-On ...........................................................................................................................................64

4.3 Setting Temperature and Humidity Values .............................................................................................................69

4.4 (Optional) Setting Teamwork Parameters ..............................................................................................................70

4.5 (Optional) Setting Monitor Parameters ..................................................................................................................73

4.6 Commissioning Procedure ....................................................................................................................................74

4.7 Checking After Commissioning ............................................................................................................................77

5 System Operation and Maintenance ................................................................................... 78

5.1 Routine Maintenance ............................................................................................................................................78

5.1.1 Routine Maintenance Overview .........................................................................................................................78

5.1.2 Preventive Maintenance Tables ..........................................................................................................................79

5.2 Troubleshooting....................................................................................................................................................81

5.3 Alarms .................................................................................................................................................................84

5.4 Parts Replacement ................................................................................................................................................97

5.4.1 Replacing Indoor Unit Components ...................................................................................................................97

5.4.1.1 Replacing an Air Filter ....................................................................................................................................97

5.4.1.2 (Optional) Replacing a Humidifier Water Pump ...............................................................................................97

5.4.1.3 (Optional) Replacing an Electric Heater ..........................................................................................................99

5.4.1.4 (Optional) Replacing a Wet Film Humidifier ................................................................................................. 100

5.4.1.5 Replacing an Indoor Fan ............................................................................................................................... 101

5.4.1.6 Replacing a Main Control Board ................................................................................................................... 103

5.4.1.7 Replacing the Drive Board of the Indoor Fan ................................................................................................. 104

Issue 05 (2019-12-20)

Contents

Table of Contents