Additional Refrigerant Charge Procedure - Daikin RTSQ20PY1 Service Manual

SiBE31-801_C
1.3

Additional Refrigerant Charge Procedure

Charge the additional refrigerant by following procedure before test operation.
Calculation of refrigerant amount
Connection of devices for
refrigerant charge
Additional charging of refrigerant
(precharge)
Automatic refrigerant charging operation (Refer to 1.3.3)
*1
Heating mode (manual operation)
Automatic charging completed
(Detecting refrigerant leakage; required)
Press BS 4 button once to detect refrigerant leakage
Press BS 1 button once to complete charging
Record the amount of additional refrigerant charging on "Record plate for additional charging"
Input the additional refrigerant charge
weight into the PCB
Check operation
Test Operation
(Refer to p.131)
Provide the calculated additional refrigerant amount as "G"
(Refer to 1.3.1)
If automatic charging of
refrigerant is not necessary
(Refer to 1.3.2)
Charge (G – 10kg)
Cooling mode (automatic operation)
*1
Outdoor temperature: 0 – 43°CDB
Indoor temperature: 10 – 32°CDB
Temperature below the above range
(Refer to 1.3.4)
(Refer to 1.4)
Additional charging of refrigerant
(Refer to 1.3.2)
Fill "G" volume
Operate additional charging to
remaining refrigerant
(Refer to 1.3.5)
Operate in
cooling mode
Operate in
heating mode
(Detecting refrigerant leakage; not required)
Test Operation
134