After installation finished, please fulfill the water system with water and purge out air
in the system before start-up.
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4. Installation Walkthrough
4.8. Test run
4.8.1. Before start-up
The list of verifications below must be performed before the unit starts up, to ensure best possible
conditions for smooth long-term operation. The list is not exhaustive, and should only be used on a
minimum reference basis:
1) Make sure the fans are rotating freely.
Confirm correct flow directions in water piping.
Verify all system piping matches installation instructions.
Check the voltage of the unit power supply and make certain it complies to authorized limitations.
The unit must be properly grounded.
Check for the presence of any damaged devices
Check all electrical connections and ensure they are secure.
Make sure there are no leaks in the piping and the space is well-ventilated.
Fix any problems above if they occur. If everything above is satisfied, the unit can start up.
2)
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4.8.2. Starting Up
When the installation of the unit is completed, all water system pipes are confirmed to be
well-connected, air purging is done, there are no leakages or other problems, the unit can be powered on.
Turn on the unit by pressing the on/off button on the operation panel. Listen carefully for any abnormal
noise or vibrations, and ensure the display of the wired controller is normal.
After the unit has been on for 10 minutes and no abnormalties have occurred, the start-up process is
complete. For problems and troubleshooting, please refer to the Service and Maintenance manual.
Final note: It is suggested to not run “heating” or “hot water” mode during ambient temperatures above
32℃ ，
otherwise the unit may easily enter protection mode.
