Specifications

Ducted Split Type Air-Conditioning
35
11 Trial run and installation checking
11.1 Trial run
1) Preparation for trial run
The power supply should be turned on only after nishing all the installation.
All the control wires and cables are connected correctly and safely.
Open the cut-off valves in the gas and liquid pipes.
All the objects like screws and wires etc that remained in the machine should be cleared after installation.
2) Trial run
Switch on power supply and press the ON/OFF button to start operation.
Select FAN mode to check if the phases of the indoor motor are correct.
Select COOL, HEAT and FAN mode and check if the machine operates normally.
11.2 Checking items after installation
Item Possible defects Checking Has it been xed rmly?
How is the installation? The unit may drop, shake or emit noise.
Have you done the refrigerant leakage test? It may cause insufcient refrigerating capacity.
Is heat insulation sufcient? It may cause condensation and dripping.
Does the unit drain well? It may cause condensation and dripping.
Is the voltage in accordance with the rated voltage marked
on the nameplate?
It may cause electric malfunction or damage the part.
Is the electric wiring and piping connection installed
correctly and securely?
It may cause electric malfunction or damage the part.
Has the unit been connected to a secure earth connection? It may cause electrical leakage.
Is the power cord specied? It may cause electric malfunction or damage the part.
Has the inlet and outlet been covered? Insufcient refrigerating capacity.
Has the length of connection pipes and refrigerant capacity
been recorded?
The refrigerant capacity is not accurate.