23
Pump Done
Operation test
Check After installation
• Connect the hose of manifold valve to the
charge port of stop valve on the gas pipe side of
the outdoor unit.
• Close the stop valve on the gas pipe side
almost completely.
• Fully close the stop valve on the liquid pipe side.
• Turn on the unit in COOL mode.
• Fully close the stop valve on the gas pipe side
when the pressure gauge shows 1 - 0.5 kgf/cm
2
(100 ~ 50 kPa).
• Stop the test run operation by turn the unit off
and all the refrigerant gas have been collected
in the outdoor unit.
1
Before Operation test
• Do not switch on power before installation is
finished completely.
• Electric wiring must be connected correctly
and securely.
• Stop valves of the connection pipes should
be fully opened.
• All the impurities such as scraps and waste
must be cleared from the unit.
2
Operation test Method
• Switch on power and press “ON/OFF” button
on the remote controller to start the operation.
• Press MODE button to select the COOL,
HEAT (if applicable), FAN to check if all the
functions work well.
• When the ambient temperature is lower than
16°C), the unit can not be set on the remote
control to work in COOL mode. Please use
the Emergency Operation mode which is
used only when the remote is unavailable or
in case of maintenance.
Manual control
button
Manual control button
When relocating or disposing of the air
conditioner, pump down the system following
the procedure below so that no refrigerant is
released into the atmosphere.
items to be checked
Possible malfunction
Has the unit been fixed
firmly?
The unit may drop, shake or
emit noise.
Have you done the
refrigerant leakage test?
It may cause insufficient
cooling (heating)
Is thermal insulation
sufficient?
It may cause condensation.
Is water drainage
satisfactory?
It may cause water leakage.
Is the voltage in
accordance with the
rated voltage marked on
the nameplate?
It may cause electric
malfunction or damage the
unit.
Is the electric wiring
or piping connection
installed correctly and
securely?
It may cause electric
malfunction or damage the
parts.
Has the unit been
securely earthed?
It may cause electrical
leakage.
Is the power cord
specified?
It may cause electric
malfunction or damage the
parts.
Is the inlet or outlet
blocked?
It may cause insufficient
cooling (heating)
Is the length of
connection pipes and
refrigerant capacity
recorded?
The refrigerant capacity is
not accurate.
