RZQ71~125B7V3B
Split System air conditioners
4PW16864-1A
Installation manual
12
Test run
1
Make sure the liquid and gas shut-off valves are open.
Be sure to close the frontside panel before operation, as not
doing so can cause electric shock.
-
The refrigerant pressure may not rise, even if the shut-off
valve is opened after an air purge is performed using a
vacuum pump.
This is because the indoor unit refrigerant piping is closed off
with electric valves inside. This will not create any problems
during operation.
2
Be sure to set it to cooling and press the operation switch.
3
Press the inspection/test-run switch on the remote control to put
the machine into test-run mode.
4
Make sure the compressor is not starting and stopping during
the test-run by listening. If it is starting and stopping,
immediately stop the machine using the remote control, and
check the refrigerant level, etc. There may be some sort of
malfunction.
Precautions regarding test-runs
■
If the remote control shows E3, E4 or L8 as an error code, there
is a possibility that either the shut-off valve is closed, or the
outlet vent is closed.
■
If the error code U2 is displayed on the remote contol, check for
voltage imbalance.
■
If the error code U4 or UF is displayed on the remote contol,
check the inter-unit branch wiring connection.
D
ISPOSAL
REQUIREMENTS
Dismantling of the unit, treatment of the refrigerant, oil and any other
parts should be done in accordance with the relevant local and
national regulations.
N
OTES
Opening direction
A
Liquid side
B
Gas side
Remove the cap and turn
counterclockwise with a
hex wrench until it stops
A
B
