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Debugging and running
5.1 Confirm the project before running
◆ Unit power supply. Be sure to have the same power source as the product nameplate.
◆ The circuit connection of the unit. Check the wire diameter and wiring of the power supply wire, and
the ground wire is firmly connected. Check if the linkage of the pump or the like is properly
connected.
◆Water pipes and pipes. Water pipes and pipes must be flushed at least two or three times to ensure
cleanliness without any contaminants.
◆ Check the water circulation system. Check that the water volume is sufficient, that the air is drained,
and that there is no leakage.
◆ When powering on for the first time or after a long time of shutdown, the power must be turned on in
advance to heat the crankcase for at least 2 hours.
◆ The water filter is installed in place as required, and there is no pollutant in the water filter.
◆Water flow switch, the pump overload has been linked with the unit, and the drain valve has been
installed in place.
5.2 Check of running status
After the unit is running smoothly, check the following items:
number
1
2
Operating current of a single compressor
3
Operating current of a single fan
Unit inlet water temperature during cooling
4
Unit outlet water temperature during cooling
5
Unit inlet water temperature during heating
6
Unit outlet water temperature during heating
7
8
Inlet and out water temperature difference
9
Compressor exhaust temperature
10
Low pressure during cooling operation
11
High pressure during cooling operation
12
Low pressure during heating operation
13
High pressure during heating operation
14
Vibration, running sound
Remarks: The judgment reference standard is only the basis for the normal operation of the on-site unit.
The highest and lowest values of the reference standard are judged as the reference standard for the
maximum working condition and the minimum working condition of the unit. If the unit is stable and
exceeds the reference standard, please consult your local dealer and Haier for sale.
Check item
Voltage
operation
operation
operation
operation
Inspection essentials
Voltmeter confirmation
Galvanometer
confirmation
Galvanometer
confirmation
Thermometer confirmation
Thermometer confirmation
Thermometer confirmation
Thermometer confirmation
Thermometer confirmation
Thermometer confirmation
Pressure gauge
confirmation
Pressure gauge
confirmation
Pressure gauge
confirmation
Pressure gauge
confirmation
Auscultation or palpation
24
Judging reference standard
±10% of rated voltage
6～23A
0.2～3.6A
8～28℃
5～21℃
24～50℃
29～55℃
2～8℃
35～105℃
6.5～12.0bar
14～36.5bar
2～12.5bar
18～36.5bar
No abnormal vibration, running
sound
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