Table of Contents
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FusionCol8000-E400 Modular Indirect Evaporative
Cooling System
User Manual
Contents
7 WebUI.................................................................................................................................... 103
7.1 Preparations and WebUI Login...................................................................................................................................... 103
7.2 Introduction to the WebUI.............................................................................................................................................. 106
8 System Operation and Maintenance..............................................................................107
8.1 Routine Maintenance Overview.................................................................................................................................... 107
8.2 Routine Maintenance........................................................................................................................................................ 108
8.2.1 Monthly Maintenance................................................................................................................................................... 109
8.2.2 Quarterly Maintenance................................................................................................................................................. 111
8.2.3 Yearly Maintenance........................................................................................................................................................ 113
8.3 Troubleshooting.................................................................................................................................................................. 115
8.4 Alarm Reference..................................................................................................................................................................122
9 Parts Replacement.............................................................................................................. 123
9.1 Replacing a Return Air Filter.......................................................................................................................................... 123
9.2 Replacing an Outdoor Bag Air Filter........................................................................................................................... 124
9.3 Replacing an Outdoor Exhaust Fan..............................................................................................................................125
9.4 Replacing an Indoor Air Supply Fan.............................................................................................................................126
9.5 Replacing a Differential Pressure Switch....................................................................................................................128
9.6 Replacing a Filter Dryer and Compressor.................................................................................................................. 130
9.6.1 Replacing a Filter Dryer................................................................................................................................................ 130
9.6.2 Replacing a Compressor............................................................................................................................................... 132
9.6.3 R410A Refrigerant...........................................................................................................................................................135
9.6.4 Leakage Test with Nitrogen for Refrigerant Pipes...............................................................................................137
9.6.5 Vacuumizing and Precharging Refrigerant............................................................................................................ 138
9.6.5.1 Refrigerant Charge Amount..................................................................................................................................... 138
9.6.5.2 Vacuumizing.................................................................................................................................................................. 138
9.6.5.3 Precharging Refrigerant.............................................................................................................................................139
9.6.6 Charging the Remaining Refrigerant....................................................................................................................... 141
9.7 Replacing a Compressor Drive....................................................................................................................................... 142
9.8 Replacing an Exhaust Fan Drive.................................................................................................................................... 144
9.9 Replacing a Supply Fan Drive.........................................................................................................................................145
9.10 Replacing a Float............................................................................................................................................................. 146
9.11 Replacing a Water Pump............................................................................................................................................... 148
9.12 Replacing a Switch...........................................................................................................................................................149
9.13 Replacing a Contactor.................................................................................................................................................... 150
9.14 Replacing an SPD............................................................................................................................................................. 150
9.15 Replacing a Fuse.............................................................................................................................................................. 151
9.16 Replacing a Thermal Relay........................................................................................................................................... 152
9.17 Replacing a T/H Sensor..................................................................................................................................................152
9.18 Replacing a Wet Film Humidifier............................................................................................................................... 154
10 FAQ....................................................................................................................................... 156
10.1 Operations with a USB Flash Drive............................................................................................................................156
Issue 04 (2022-06-30)
Copyright © Huawei Technologies Co., Ltd.
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