IBC AHU Series, Installation And Operating Manual, Page: 4 / 63

2.4.1 Sizing pumps 24
2.4.2 Using Propylene Glycol 26
2.5 Connecting the unit to a tankless water heater 26
2.6 Electrical connections 28
2.6.1 Wiring of the external pump and 120VAC line 29
2.6.2 Connecting line voltage - examples for different scenarios 29
3.0 Operation 41
3.1 Checklist for electrical conditions, ducting and water connections 41
3.2 Default settings 42
3.3 Default fan speed settings 42
3.4 Operating the unit with a mobile app 43
3.4.1 Loading IBCconnect 44
3.4.2 Using the app to connect to IBC's AHU WiFi 44
3.4.3 Using the app to view the AHU's information 47
3.5 Configuring settings and parameters via a USB text file 49
3.6 Sequence of operation 49
3.6.1 Heating Mode 49
3.6.2 Cooling Mode 50
3.6.3 Heat Pump Mode 50
3.6.4 Humidification Mode 50
3.6.5 De-humidification Mode 51
3.6.6 Freeze Protection Mode 51
3.7 LED status indicators 51
Built-in diagnostics feature 52
4.0 Service and maintenance 53
4.1 Maintenance checklist for owners 53
4.2 Maintenance for the heating contractor 53
4.2.1 Removing the fan assembly 53
4.2.2 Replacing the hot water coil unit 55
4.3 Temperature sensors 55
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Section: Contents