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V. Trial operation
Check before operating
A. Trial running must after all the installation is completed.
B. Please confirm the following matters before the trial operation, put “√”in the boxes after confirmation:
● Unit is installed correctly
● Power supply meets unit’s rated need
● Piping and wiring correct
● Unit well-ventilated
● Drain off water well
● Leakage protective device act effectively
● Pipe insulation is perfect
● Grounding wire connected correctly
C. All wiring and piping construction work is completed, after carefully checking everything then can switch on
and the water tank fill with water.
D. Let the piping and water tank’s air drain, click "on/off" button on the control panel, unit will accord to the set
temperature operation.
E. Trial run to be checked:
Operation panel ‘s function keys are normal or not;
The indicator is normal or not;
The whole circulating hot water system whether there is water leakage;
The condensed water discharge is normal or not;
Unit’s gas system pressure is normal or not (according to the water temperature detect high, low
pressure);
Whether there is abnormal sound and vibration in unit running state;
The wind, sound and condensed water from unit whether effect to neighborhood;
Whether there is leakage of refrigerant.
