Panasonic U-10MX4XPQ Installation Manual - page 22
Installation manual
19
U-5~18MX4XPQ
Urban Multi air conditioner
4PW28163-1
8.
Operation
When the following led display is shown, open valve A and close
the frontpanel. If the frontpanel is left open, the system can not
operate properly during the refrigerant charging.
*
= The state of this led is not important.
9.
Complete
If the calculated amount of refrigerant minus 10 kg is reached,
close valve A and press the
button once.
As long as the
button is not pressed, the system
will remain in heating mode. This can be required to increase the
indoor temperature.
10. Press the
button to perform the temperature range
check
Out of range:
In these cases, press the
button once and follow the
procedure as "5 Final adjustment of the amount of refrigerant"
on page 22.
In range:
The unit will restart from the charging mode judgement onwards
and the cooling mode will be selected. However, if in the mean
time the temperature has become out of range, heating mode
will be selected again, this is required to increase the indoor
temperature.
■
Charging in cooling mode
6.
Start up
Wait while the unit is preparing for charging in cooling mode.
7.
Ready
Press the
button once within 5 minutes.
If the
button is not pushed within 5 minutes,
P2
will be
displayed on the remote controller. Refer to "4 Remote controller
malfunction code display" on page 21.
8.
Operation
When the following led display is shown, open valve A and close
the frontpanel. If the frontpanel is left open, the system can not
operate properly during the refrigerant charging.
*
= The state of this led is not important.
9.
Complete
If the display on the remote controller shows a flashing
PE
code,
charging is almost finished.
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. When the charging amount is little, the
PE
code may not be displayed, but instead the
P9
code will be
displayed immediately.
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.
10. Press the
button to perform the temperature range
check
Out of range:
In these cases, press the
button once and follow the
procedure as described in "5 Final adjustment of the amount of
refrigerant" on page 22.
In range:
The state of the leds will show:
Press the
button once. The procedure 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 test procedure as described in "In case refrigerant
was added by using the leak detection function" on page 25.
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w c
*
*
*
*
*
When a malfunction occurs, check the display of the
remote controller and refer to "Remote controller
malfunction code display" on page 21.
H1P
H2P
H3P
H4P
H5P
H6P
H7P
c c c w w w w
H1P
H2P
H3P
H4P
H5P
H6P
H7P
Out of outdoor
temperture range
w c c c w x
x
Out of indoor
temperture range
w c c c x w x
H1P
H2P
H3P
H4P
H5P
H6P
H7P
x c x
x
x
x w
H1P
H2P
H3P
H4P
H5P
H6P
H7P
Pressure control
(for the first minute)
x c x
x
x
x w
Start up control
(for the next 2 minutes)
x c x
x
x w x
Waiting for stable
heating conditions
(for the next ±15
minutes (according to
the system))
x c x
x
x w w
H1P
H2P
H3P
H4P
H5P
H6P
H7P
c c c x w x w
BS3 RETURN
BS3 RETURN
BS4 TEST
BS1 MODE
BS4 TEST
BS4 TEST
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w c
*
*
*
*
*
When a malfunction occurs, check the display of the
remote controller and refer to "Remote controller
malfunction code display" on page 21.
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w c c w w w w
H1P
H2P
H3P
H4P
H5P
H6P
H7P
Out of outdoor
temperture range
w c c c w x
x
Out of indoor
temperture range
w c c c x w x
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w c c w w w w
BS4 TEST
BS1 MODE
BS1 MODE