Daikin RMXS-L Series Service Manual page 147

SiUS181631EA
2.1.4 Setting of Refrigerant Additional Charging Operation
When the outdoor unit is stopped and the entire quantity of refrigerant cannot be charged from
the stop valve on the liquid side, make sure to charge the remaining quantity of refrigerant
using this procedure. If the refrigerant quantity is insufficient, the unit may malfunction.
(1) Turn ON the power of the indoor unit and the outdoor unit.
(2) Make sure to completely open the stop valve on the gas side and the stop valve on the
(3) Connect the refrigerant charge hose to the service port (for additionally charging the
(4) In the stopped status, set to ON the refrigerant additional charging operation (A) in
(5) The operation is automatically started.
(6) After charging the specified quantity of refrigerant, press RETURN (BS3) button to stop
(7) Disconnect the refrigerant charge hose.
2.1.5 Setting of Refrigerant Recovery Mode
When carrying out the refrigerant collection on site, fully open the respective expansion valve of
indoor and outdoor units.
All indoor and outdoor unit's operation are prohibited.
Operation procedure
(1) In setting mode 2 with units in stop mode, set the item No.21 (refrigerant recovery/vacuuming
(2) Collect the refrigerant using a refrigerant recovery unit. (See the instruction attached to the
(3) Press MODE (BS1) button once and return to setting mode 2.
Test Operation and Field Settings
liquid side.
refrigerant).
setting mode 2 (H1P: Turn on).
(The LED indicator H2P flickers, and Test Operation and Under Centralized Control are
displayed on the remote controller.)
the operation.
The operation is automatically stopped within 30 minutes.
If charging is not completed within 30 minutes, set and perform the refrigerant
additional charging operation (A) again.
If the refrigerant additional charging operation is stopped soon, the refrigerant may be
overcharged.
Never charge extra refrigerant.
charging the refrigerant
mode) to ON. The respective expansion valve of indoor and outdoor units are fully opened. Test
Operation and Under Centralized Control are displayed on the remote controller, and the
indoor/outdoor unit operation is prohibited.
After setting, do not cancel setting mode 2 until completion of refrigerant recovery operation.
refrigerant recovery unit for more detail.)
Service port
for additionally
Field Settings
(R9208)
137