Final Check After Installation - Panasonic Urban Multi U-8ME4XPQ Manual De Instalación

Correcting after abnormal completion of the test operation
The test operation is only completed if there is no malfunction code
displayed on the remote controller. In case of a displayed malfunction
code, perform the following actions to correct the abnormality:
Confirm the malfunction code on the remote controller
Installation error Error code
The stop valve of an
E3
outdoor unit is left
E4
closed.
F3
F6
UF
The phases of the
U1
power to the outdoor
unit is reversed.
No power is supplied
LC
to an outdoor or
U1
indoor unit (including
U4
phase interruption).
Incorrect
UF
interconnections
between units.
Refrigerant
E3
overcharge.
F6
UF
Insufficient refrigerant.
E4
F3
The added amount of
PF
refrigerant was not
inputted after
automatic charging.
In case the test
U3
operation was
interrupted or the unit
was operating out of
the instructed
temperature range,
the initial refrigerant
detection has failed.
After correcting the abnormality, press the
and reset the malfunction code.
Carry out the test operation again and confirm that the
abnormality is properly corrected.
Installation manual
24
Remedial action
Open the stop valve.
Exchange two of the three phases
(L1, L2, L3) to make a positive
phase connection.
Check if the power wiring for the
outdoor unit is connected correctly.
Check if the refrigerant line piping
and the unit wiring are consistent
with each other.
Recalculate the required amount of
refrigerant from the piping length
and correct the refrigerant charge
level by recovering any excessive
refrigerant with a refrigerant
recovery machine.
Check if the additional refrigerant
charge has been finished correctly.
Recalculate the required amount of
refrigerant from the piping length
and add an adequate amount of
refrigerant.
Availability of the leak detection
function feature requires input of
the additional refrigerant charge
amount immediately after finishing
the automatic charging. Refer to
"11.6. Procedure for inputting the
additional refrigerant charge weight
into the PCB" on page 19.
In case the the test operation was
interrupted, perform the test
operation again.
In case the unit was operating out
of the instructed temperature
range, the unit can still be operated
normally, but the leak detection
function will not be available.
Perform the test operation again
within the instructed temperature
range.
button
BS3 RETURN

12.5. Final check after installation

After all installation works are completed, operate the unit normally
and check the following:
Make sure the indoor units and outdoor unit are operating
normally.
Operate each indoor unit separately and make sure the
corresponding outdoor unit is also operating properly.
Check if cold or hot air is coming out from the indoor unit.
Push the fan direction and fan strength buttons on the remote
controller to check if they are operating properly.
Heating is not possible if the outdoor temperature
NOTE
is 24°C or higher. Refer to the operation manual.
If a knocking sound is heard in the liquid
compression of the compressor, stop the unit
immediately and then energize the crankcase
heater for a sufficient length of time before
restarting the operation.
Once stopped, the compressor will not restart in
about 5 minutes, even if the ON/OFF button on
the remote controller is pushed.
When the system operation is stopped by the
remote controller, the outdoor unit may continue
operation for a maximum of 5 minutes.
The outdoor fan may rotate at low speeds in the
night-time low noise setting or the external low
noise level setting is made; but this is not a
malfunction.
U-8~16ME4XPQ
Urban Multi air conditioner
4PW40726-1A