Daikin RXYQ96PYDN Service Manual page 248

SiUS34-801A_b
(*3) It takes about 2~10 minutes to achieve refrigerant stability.
(*4) If the TEST button (BS4) is not pushed within 5 minutes, the [P2] code will displayed on the
(*5) If the front panel is opened during operation, the system cannot operate properly.
(*6) If you leave the system without connecting the refrigerant tank or opening the valve A for 30
(*7) Depending on the situation of operation, such as not enough refrigerant charge, the [PE] code
(*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 Recovery 60Hz
units powered.For checking, see [How to check how many units are connected] in chapter
10.2.6.1.
• To energize the crankcase heater, make sure to turn on the power for 6 hours before starting
operation.
If too little refrigerant is added and operation is started before stability is achieved, the system
cannot precisely judge the amount charged and overcharging will result.
remote controller. In this case, refer to the [Remote controller cooling (or heating) mode
malfunction code].
minutes or more, the system stops operation and the [P2] code is displayed on the remote
controller.
In this case, refer to [Remote controller cooling (or heating) mode malfunction code].
may not be displayed and the [P9] code may be displayed.
The refrigerant charge port of this unit has an electric expansion valve and the valve is closed
when charging is finished. However, the valve will open if other operations take place. (Check
operation, normal operation, etc.) If you leave the tank connected, the refrigerant will over
charge.
Code
PE Charging is almost finished. Ready to close the valve A.
The refrigerant tank is empty. Close Valve A and replace empty tank to the new tank. After changing
the tank, open Valve A again.
PA
PH
Beware 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 HP/LP gas pipe, suction gas pipe or liquid pipe
shutoff valve is opened.
P2
Check if the refrigerant tank is connected and if Valve A
was opened.
Check 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 10.2.6.2.
Charging is finished. Close Valve A and take the refrigerant tank off.
P9
Code
Close Valve A immediately and push the TEST button (BS4) once. Restart from procedure (7) In
P8
case of heating mode.
Operation is interrupted. Close Valve A immediately and check the below items.
Check if the HP/LP gas pipe, suction gas pipe or liquid pipe shutoff valve is opened.
P2
Check if the refrigerant tank is connected and if valve A was opened.
Check if 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. Record the factory charged refrigerant amount, additional
refrigerant amount in the field, and total refrigerant amount of the system to the ADDITIONAL
REF. CHARGE label and adhere it in the proximity of the refrigerant charge port.
Meaning / Action
After correcting the abnormality,
restart the operation from procedure
(3).
Meaning/ Action
Test Operation
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