Daikin RXYQ96PYDN Service Manual page 102

SiUS34-801A_b
Notes (*1)~(*9)
(*1) Lead the refrigerant charge hose from the pipe intake.
(*2) • If you perform the refrigerant charging operation within a refrigerant system that has the
(*3) It takes about 2~10 minutes to achieve refrigerant stability.
(*4) If the TEST button (BS4) is not pushed within 5 minutes, [P2] code will be displayed in the
(*5) If the front panel is opened during the operation, the system cannot operate properly.
(*6) If you leave the system without connecting the refrigerant tank or opening valve A for 30
(*7) Depending on the situation of operation such as a small charging amount, the [PE] code may
(*8) Always close valve A and take the tank off.
[Remote controller cooling mode malfunction code]
[Remote controller heating mode malfunction code]
6. After completing the additional refrigerant charging, record the charging amount on the
VRVIII R-410A Heat Pump 60Hz
All front panels must be closed at procedure (7).
power off to one or more units, the operation cannot finish properly.
Check the number of outside and indoor units that are powered.
For checking, see [How to check how many units are connected] in chapter 10.2.5.1.
• To energize the crankcase heater, make sure to turn on for 6 hours before starting operation.
If the additional refrigerant is too small an amount and operation is started before achieving
stability, the system cannot precisely judge the charging amount, resulting in overcharging.
remote controller. In this case, refer to [Remote controller cooling (or heating) mode
malfunction code].
minutes or more, the system stops operation and the [P2] code is displayed in the remote
controller. In this case, refer to [Remote controller cooling (or heating) mode malfunction code].
not be displayed and the [P9] code may be displayed.
The refrigerant charge port of this unit has an electronic expansion valve and the valve is
closed when charging is finished. However, the valve opens when other operations occur. If
you leave the tank connected, the refrigerant will overcharge.
Code
PE Charging is almost finished. Ready to close valve A.
The refrigerant tank is empty. Close valve A and replace empty tank to the new tank. After changing the
PA tank, open valve A again.
PH Be cautious of the fan running.
The outside unit does not stop operation.
P8 Close the valve A immediately, and restart the operation from procedure (3).
Operation is interrupted. Close valve A immediately and check
the below items.
• Check if the gas pipe or liquid pipe shutoff valve is opened.
P2 • Check that the refrigerant tank is connected and valve A was
opened.
• Check to ensure that the air inlet and outlet of the indoor unit
are not closed by an obstruction.
Operation is stopped abnormally. Close valve A immediately. Confirm
∗
the malfunction code and correct the abnormality following the
[Remote controller displays malfunction code] in chapter 10.2.5.4.
P9 Charging is finished. Close valve A and take the refrigerant tank off.
Code
Close valve A immediately and push the TEST button (BS4) once. Restart from Procedure (7) In case of
P8
heating mode.
Operation is interrupted. Close valve A immediately and check the below items.
• Check if the gas pipe or liquid pipe shutoff valve is opened.
P2
• Check the refrigerant tank is connected and valve A was opened.
• Check to ensure that the air inlet and outlet of the indoor unit are not closed by an obstruction.
accessory [REQUEST FOR THE INDICATON] label (Installation records) and adhere it to the
back side of the front panel. Also, record the factory charged refrigerant amount, additional
refrigerant amount in the field and total refrigerant amount of the system to [ADDITIONAL REF.
CHARGE] label and adhere in the proximity of the refrigerant charge port.
The work contents
After correcting the abnormality,
restart the operation from procedure
(3).
The work contents
Test Operation
87