Procedure For Inputting The Additional Refrigerant Charge Weight Into The Pcb - Panasonic U-8ME4XPQM Manuel D'installation

9. Complete
H1P H2P H3P H4P H5P H6P H7P
c c c w w w w
The display on the remote controller shows a flashing PE code
for signalling that automatic charging will be finished in about 10
minutes.
When the unit stops operating, close valve A immediately and
check the LEDs and check if the P9 code is displayed on the
remote controller.
NOTE Always close valve A and remove the refrigerant
tank immediately after finishing the refrigerant
charge operation.
The refrigerant charge port of these units have
electric expansion
automatically when refrigerant charging operation
has finished. However, the electric expansion
valves will be opened when other operations start
after finishing refrigerant charging operation.
If the refrigerant tank is left with the valve open,
the amount of refrigerant which is properly
charged may be off the point.
H1P H2P H3P H4P H5P H6P H7P
w c c w w w w
If it is not as shown above, correct the malfunction (as indicated
in the display of the remote controller) and restart the complete
charging procedure. When the charging amount is little, the PE
code may not be displayed, but instead the P9 code will be
displayed immediately.
10. In case leak detection function required
Press the button once for post-processing with
BS4 TEST
regard to the leak detection function and press the
button to confirm that charging is completed.
Record the amount that was added on the additional refrigerant
charge label provided with the unit and attach it on the back side
of the front panel.
Perform the procedure "11.6. Procedure for inputting the
additional refrigerant charge weight into the PCB" as described
on page 21.
10. In case leak detection function not required
Press the button once and the charging is complete.
BS1 MODE
Record the amount that was added on the additional refrigerant
charge label provided with the unit and attach it on the back side
of the front panel.
Perform the procedure "11.6. Procedure for inputting the
additional refrigerant charge weight into the PCB" as described
on page 21.
2 Normal system display
LED
Micro-
display
computer
(Default
Ready
operation
status
Mode /Error
monitor
before
delivery)
HAP H1P H2P
Single outdoor c x x
unit system
Master c x x
(a)
unit
Multiple Slave
c x x
outdoor unit
(a)
unit 1
system
Slave
c x x
unit
(a)
2
(a) The state of the H8P (multi) LED in a multi-system shows which unit is the master
unit (w), slave 1 unit (c) or slave 2 unit (x).
Only the master unit is connected to the indoor units with interunit wiring.
Installation manual
21
valves that will close
BS1 MODE
Cooling/Heating
changeover
Indivi- Bulk Bulk Low
dual (master) (slave) noise Demand Multi
H3P H4P H5P H6P H7P H8P
w x x x x x
w x x x x w
x x x x x c
x x x x x x
3 Remote controller malfunction code display
Remote controller heating mode malfunction codes
Error code
Close valve A immediately and press the TEST OPERATION
P8
recharge button once.
operation The operation will restart from the charging mode judgement
onwards.
Close valve A immediately. Check
P2
charge following items:
hold - Check if the gas side stop valve is
opened correctly
- Check if the valve of the refrigerant
cylinder is opened
- Check if the air inlet and outlet of the
indoor unit are not obstructed
Remote controller cooling mode malfunction codes
Error code
Close valve A and replace the empty cylinder. When renewed,
open valve A (the outdoor unit will not stop operating).
The code on the display shows the unit where a cylinder is to be
renewed:
PA = master unit, PH = slave unit 1, PC = slave unit 2, flashing PA,
PH and PC = all units
PA, PH, PC
After recplacing the cylinder, open valve A again and continue the
replace
work.
cylinder
In case of an outdoor multi system, replacing the
refrigerant tank of the outdoor unit during the refrigerant
charging operation when the display on the remote
controller is not showing PA, PH or PC, may cause an
abnormal stop of the refrigerant charging operation.
Close valve A immediately.
P8
recharge Restart the automatic charging procedure again.
operation
Close valve A immediately. Check
following items:
- Check if the high pressure/low
pressure gas pipe, suction gas pipe,
P2
liquid pipes and equalizer pipe stop
charge
valves are opened correctly
hold
- Check if the valve of the refrigerant
cylinder is opened
- Check if the air inlet and outlet of the
indoor unit are not obstructed
Close valve A immediately. Confirm the
* malfunction code by the remote controller
abnormal and correct the abnormality by following
stop the "Correcting after abnormal completion
of the test operation" on page 25.
11.6. Procedure for inputting the additional
refrigerant charge weight into the PCB
Availability of the leak detection function feature requires input of the
additional refrigerant charge amount immediately after finishing the
automatic charging. The input must be executed before performing
the test operation.
If a wrong value is inputted for the additional charged
refrigerant weight, the accuracy of the leak detection
function will decrease.
Procedure
1 Close the electric box lid and all front panels except the one on
the side of the electric box.
2 Press and hold the
BS1 MODE
setting mode 2.
w
The H1P LED is on .
After correcting the
abnormality, restart
the automatic
charging procedure
again.
After correcting the
abnormality, restart
the automatic
charging procedure
again.
button for 5 seconds to enter into
U-8~16ME4XPQM
Urban Multi air conditioner
4PW40728-1