Panasonic U-5ML5DPQ Installation Manual page 14

H1P H2P H3P H4P H5P H6P H7P
c c c x w x w
4.4 The led indication becomes as shown in the table below during
automatic refrigerant charging.
During automatic refrigerant charging, the remote controller
indicates (test operation) and
H1P H2P H3P H4P H5P H6P H7P
w c
NOTE If the led display below appears, the refrigerant
tank is empty. Replace the refrigerant tank, open
valve A and re-charge.
H1P H2P H3P H4P H5P H6P H7P Code on remote controller
w c c x x w x
The led indication becomes as shown in the table below when
automatic refrigerant charging is about to end. Prepare to close
the valve on the refrigerant tank.
H1P H2P H3P H4P H5P H6P H7P
c c c w w w w
It is possible that the code PE is not shown on the
NOTE
remote controller but this does not indicate a
malfunction. The led indication can immediately
shift to the situation as shown in "Case 1:
Charging complete" on page 12.
4.5 When the led indication becomes as shown in the table below,
quickly close valve A and follow instructions as described below.
CAUTION
When adding refrigerant is done or when
pausing, close the valve on the refrigerant tank
immediately.
More refrigerant might be charged by any
remaining pressure after the machine is stopped.
The outdoor fan may keep rotating a little bit
more, but this does not indicate a malfunction.
Case 1: Charging complete
H1P H2P H3P H4P H5P H6P H7P
w c c w w w w
Charging of the refrigerant is complete. Press
button once and go to step 5.
Case 2: Recharging operation
H1P H2P H3P H4P H5P H6P H7P
w c c x w w w
Press button once and perform automatic
BS1 MODE
refrigerant charging again starting from Step 4.2.
Case 3: Charging interrupted
H1P H2P H3P H4P H5P H6P H7P
w c c x x x w
Something is preventing normal operation:
Is the gas side stop valve completely open?
Are the valve on the refrigerant tank and valve A open?
Check if the
BS4 TEST
minutes after the valves were opened.
Is the indoor unit air intake vent or outlet vent blocked?
Installation manual
12
Code on remote controller
PA
(external control).
PA
Code on remote controller
PE
Code on remote controller
P9
BS1 MODE
Code on remote controller
P8
Code on remote controller
P2
button was pressed within 10
After correcting the problem, press
perform automatic refrigerant charging again starting from
step 4.2.
Case 4: Failure
H1P H2P H3P H4P H5P H6P H7P
x w w x x x x
(*) An error in the system interrupted the operation of the unit. Check the
error by using the error code displayed on the remote controller. For an
explanation of the error codes, see "Error codes on the remote controller"
on page 20 and solve the problem.
After correcting the problem, press
perform automatic refrigerant charging again starting from
step 4.2.
5 When charging is complete, determine the weight of refrigerant
that was added and fill in the amount in the "Additional
refrigerant charge label" attached to service precautions plate
on the unit.
6 After adding the refrigerant, do not forget to close the lid of the
service port. The tightening torque for the lid is 11.5~13.9 N•m.
DPQ
2
3
1 Service port for adding refrigerant
2 Liquid line stop valve
3 Gas line stop valve
4 Pipe fixing plate
Procedure 2: Charging while the outdoor unit is at a standstill
See figure 6.
1 Determine the weight of refrigerant to be charged additionally
referring to the item "Additional refrigerant charge" in "How to
calculate the additional refrigerant to be charged" on page 9 and
fill in the amount in the "Additional refrigerant charge label"
attached to the unit.
2 After the vacuum drying is finished, open valve A and charge the
additional refrigerant in its liquid state through the service port
on the liquid stop valve taking into account following instructions:
- Turn on the power of the outdoor unit and indoor units.
- Check that gas and liquid stop valves are closed.
- Stop the compressor and charge the specified weight of
refrigerant.
button once and
BS1 MODE
Error code on remote
controller
(*)
See footnote
button once and
BS1 MODE
1
XPQ
U-4~6ML5DPQ + U-4~6ML5XPQ
Urban Multi air conditioner
4PW40731-1
4
2
3