4.5.1 Setting T/H Sensor Parameters.................................................................................................................................. 107

4.5.2 (Optional) Setting the Pressure Difference Control............................................................................................109

4.5.3 (Optional) Setting Teamwork Parameters............................................................................................................. 110

4.5.4 Setting Communications Parameters....................................................................................................................... 116

4.5.4.1 Setting Access Control Parameters........................................................................................................................ 116

4.5.4.2 Setting Communications Parameters (RTU Protocol).................................................................................... 117

4.5.4.3 Setting Communications Parameters (Modbus TCP Protocol).................................................................... 118

4.5.4.4 Setting Communications Parameters (SNMP Protocol).................................................................................120

4.5.5 (Optional) Setting WIFI Parameters.........................................................................................................................122

4.5.6 Correlation Relationship of Parameters.................................................................................................................. 123

4.6 Startup.................................................................................................................................................................................... 125

4.7 Wizard Startup.................................................................................................................................................................... 127

4.8 Power-Off.............................................................................................................................................................................. 130

4.9 (Optional) Antifreezing.................................................................................................................................................... 131

4.10 Checking After Commissioning................................................................................................................................... 132

5 WebUI.................................................................................................................................... 134

5.1 Preparations and WebUI Login...................................................................................................................................... 134

5.2 WebUI Description............................................................................................................................................................. 136

6 Maintenance.........................................................................................................................138

6.1 Routine Maintenance........................................................................................................................................................ 138

6.1.1 Monthly Maintenance................................................................................................................................................... 139

6.1.2 Semi-annual Maintenance........................................................................................................................................... 140

6.1.3 Annual Maintenance......................................................................................................................................................142

6.2 Alarm Reference..................................................................................................................................................................142

6.3 Troubleshooting.................................................................................................................................................................. 142

6.4 Parts Replacement............................................................................................................................................................. 145

6.4.1 Replacing a Fan............................................................................................................................................................... 146

6.4.1.1 Replacing a Fan (Upflow)......................................................................................................................................... 146

6.4.1.2 Replacing a Fan (Downflow)................................................................................................................................... 151

6.4.2 Replacing an Air Filter................................................................................................................................................... 154

6.4.2.1 Replacing an Air Filter (Upflow)............................................................................................................................ 154

6.4.2.2 Replacing an Air Filter (Downflow)...................................................................................................................... 155

6.4.3 Replacing an Electric Heater....................................................................................................................................... 155

6.4.3.1 Replacing an Electric Heater (Upflow)................................................................................................................ 156

6.4.3.2 Replacing an Electric Heater (for a Downflow Model).................................................................................. 157

6.4.4 Replacing a Display Module........................................................................................................................................ 159

6.4.5 Replacing a Differential Pressure Switch................................................................................................................ 159

6.4.6 Replacing a Wet Film Humidifier.............................................................................................................................. 161

6.4.6.1 Replacing a Wet Film Humidifier (for an Upflow Model).............................................................................161

6.4.6.2 Replacing a Wet Film Humidifier (for a Downflow Model)......................................................................... 162

6.4.7 Replacing a Built-in Water Valve Actuator............................................................................................................ 164

6.4.8 Replacing a PSU.............................................................................................................................................................. 167

Issue 09 (2022-12-15)

vii

Table of Contents