Items To Be Checked - Gree GWH07NA-K3NNA4a Service Manual

Items to be checked

Has it been fixed firmly?
Have you done the refrigerant leakage test?
Is heat insulation sufficient?
Is water drainage satisfactory?
Is the voltage in accordance with the rated
voltage marked on the nameplate?
Is the electric wiring and piping
connection installed correctly and securely?
Has the unit been connected to a secure
earth connection?
Is the power cord specified?
Are the inlet and outlet openings blocked?
Is the length of connection pipes
and refrigerant capacity been recorded?
Low pressure
valve
Hose (available commercially ,
inner dia. 16mm )
Possible malfunction
The unit may drop, shake or emit noise.
It may cause insufficient cooling(heating)
capacity
It may cause condensation and dripping.
It may cause condensation and dripping.
It may cause electric malfunction
or damage the product.
It may cause electric malfunction
or damage the part.
It may cause electrical leakage.
It may cause electric malfunction
or damage the part.
It may cause insufficient cooling(heating)
capacity.
The refrigerant capacity is not accurate.
Manifold Valve
Multimeter
Manometer
-76cmHg
Lo Handle
Charging hose
Vacuum pump
Fig.6
Drain-water hole
Bottom frame
Drain connecte r
Hi handle