Installation manual
19
RXYQ8~18P7W1BR1
VRVIII System air conditioner
4PW44039-1E – 07.2010
■
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
malfunction code display" on page 19
.
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.
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.
Press the
button once and the charging is complete.
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
was added (charging in cooling mode)" on page 23
.
2
Remote controller malfunction code display
Remote controller heating mode malfunction codes
Remote controller cooling mode malfunction codes
11.5. Checks after adding refrigerant
■
Are the stop valves for both liquid and gas open?
■
Is the amount of refrigerant, that has been added, recorded?
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
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w c
*
*
*
*
*
When a malfunction occurs, check the display of the
remote controller and refer to
malfunction code display" on page 19
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w c c w w w w
BS4 TEST
BS4 TEST
BS1 MODE
Error code
P8
recharge
operation
Close valve A immediately and press the TEST OPERATION
button once.
The operation will restart from the charging mode judgement
onwards.
P2
charge
hold
Close valve A immediately. Check
following items:
- 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
After correcting the
abnormality, restart
the automatic
charging procedure
again.
Error code
PA
replace
cylinder
Close valve A and replace the empty cylinder. When renewed,
open valve A (the outdoor unit will not stop operating).
After replacing the cylinder, open valve A again and continue the
work.
P8
recharge
operation
Close valve A immediately.
Restart the automatic charging procedure again.
P2
charge
hold
Close valve A immediately. Check
following items:
- 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
- Check if the indoor temperature is not
lower than 20°C DB
After correcting the
abnormality, restart
the automatic
charging procedure
again.
*
abnormal
stop
Close valve A immediately. Confirm the
malfunction code by the remote controller
and correct the abnormality by following
the
"Correcting after abnormal completion
of the test operation" on page 24
Make sure to open the stop valves after charging the
refrigerant.
Operating with the stop valves closed will damage the
compressor.
