Procedure For Inputting The Additional Refrigerant Charge Weight Into The Pcb - Panasonic URBAN MULTI U-8ME4XPQ 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 the LED indication 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.
Beware of the fan blades when you open the front panel.
The fan may still rotate for a while after unit operation has
stopped.
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 19.
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 19.
2 Normal system display
Micro-
computer
operation
LED display
Mode
monitor
(Default status
HAP H1P
before delivery)
c x
Outdoor unit system
U-8~16ME4XPQ
Urban Multi air conditioner
4PW40726-1A
valves that will close
BS1 MODE
Cooling/Heating
changeover
Ready Indivi- Bulk Bulk Low
/Error dual (master) (slave) noise Demand
H2P H3P H4P H5P H6P H7P
x w 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 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
Charging is almost finished. Ready to close valve A.
PE
Charging is finished. Close valve A and remove the refrigerant
P9
tank.
Close valve A and replace the empty cylinder.
PA, PH
replace After replacing the cylinder, open valve A again and continue the
cylinder work (the outdoor unit will not stop operating).
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
and liquid pipe stop valves are opened
charge
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 24.
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 input 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 .
3 Press the button 14 times.
BS2 SET
The LED display must be as follows:
H1P H2P H3P H4P H5P H6P H7P
w x x w w w x
Press the button once as confirmation of the
BS3 RETURN
LEDs combination.
LEDs will be blinking in function of the last entered setting
(factory setting = 0 kg).
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
Installation manual
19