8. Test Run
Air-to-Water Heat Pump _ 18
Part 2. Desing and installation
• Before starting operation, pre-check points are described in this chapter.
8.1 Test run flow chart
Is cold water discharged for
more than 3 minutes ?
START
Operation mode change
to Heating mode
Operate the unit in heating mode.
Does Test operation start?
Check whether the power cable and
communication cable are completely connected
Yes
No
Yes
No
Is hot water discharged ?
Yes
No
Is there any temperature
difference between intake and
discharged water?
No
Yes
Normal
* Check the load (In/Out Temp.)
* Check pipe length and amount of
refrigerant
* Check for abnormal sound in
* Refer to Troubleshooting Guide
outdoor unit (comp.,Fan, others )
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