Daikin RTSQ20PY1 Service Manual page 154

Test Operation
1.3.5 Remaining Refrigerant Charging Method
When the leak detection function is not required and the entire refrigerant quantity can not be
charged through the liquid pipe stop valve service port with the unit not operating (refer to Pre-
charging" on page 135), make sure to charge the remaining charging quantity using the
following procedure:
1. Turn the power of the indoor unit, the BS unit and the outdoor unit on.
2. Make sure to open the stop valves of the suction gas pipe, the high pressure/low pressure
3. Connect the refrigerant charge hose to the refrigerant charging port (for additionally
4. When the unit is not operating, push the BS2 SET button until the additional refrigerant
5. The operation starts automatically.
6. After charging the specified quantity of refrigerant, press the BS3 RETURN button to stop
Never charge extra refrigerant.
7. Disconnect the refrigerant charge hose.
8. Are the stop valves for both liquid and gas open?
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gas pipe and the liquid pipe completely.
charging).
charging operation function A in setting mode 2 can be defined the H1P LED is on (
The H2P LED will start flashing (
centralized control" will display on the remote controller.
the operation.
The operation will stop within 30 minutes.
If charging is not completed after 30 minutes, set and perform the additional refrigerant
charging operation again.
If the additional refrigerant charging operation stops before the passing of 30 minutes,
the system may be overcharged.
Is the amount of refrigerant, that has been added, recorded on the refrigerant charge label?
l
) and the messages "Test operation" and "Under
SiBE31-801_C
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).
Test Operation