Daikin RTSQ20PY1 Service Manual page 149

SiBE31-801_C
12.In case leak detection function is required
12.In case leak detection function is not required
<Charging in cooling mode>
8. Start up
9. Ready
10.Operation
Note 1: When the refrigerant tank is not connected or is left with the valve closed for 30 minutes or
more, the outdoor unit will stop operation and the
controller of the indoor unit. Follow the procedure as described in "3. Remote controller
malfunction code display" on P.141.
Note 2: When a malfunction occurs, check the display of the remote controller and refer to "3. Remote
controller malfunction code display" on P.141.
Test Operation
Press the BS4 TEST button once for post-processing with regard to the leak detection
function and press the BS1 MODE button to confirm that charging is completed.
Record the amount that was added on the additional refrigerant charge label provided with
the unit and attach it on the back side of the front panel.
Perform the procedure "1.3.4 Procedure for Inputting the Additional Refrigerant Charge
Weight into the PCB" as described on page 141.
Press the BS1 MODE button once and the charging is complete.
Record the amount that was added on the additional refrigerant charge label provided with
the unit and attach it on the back side of the front panel.
Perform the procedure "1.3.4 Procedure for Inputting the Additional Refrigerant Charge
Weight into the PCB" as described on page 141.
Wait while the unit is preparing for charging in cooling mode.
H1P H2P H3P H4P H5P H6P H7P
h l h h h h k
Pressure control
(for the first minute)
h l h h h k h
Start up control
(for the next 2 minutes)
h l h h h k k
Waiting for stable cooling
conditions
(for the next ±15 minutes
(according to the system))
It takes about 2 to 10 minutes for the system to become stable.
In case of a small charging amount, the system will start charging the refrigerant before the
system reaches the stable state. It may disturb a correct decision and may cause
overcharging.
H1P H2P H3P H4P H5P H6P H7P
l l l h k h k
Press the BS4 TEST button once within 5 minutes.
If the BS4 TEST button is not pushed within 5 minutes,
controller. Refer to "3. Remote controller malfunction code display" on page 141.
When the following LED display is shown, open valve A and close the front panel. If the front
panel is left open, the system can not operate properly during the refrigerant charging.
H1P H2P H3P H4P H5P H6P H7P
k l *
* = The state of this LED is not important.
P2
will be displayed on the remote
* * * *
P2
code will be displayed on the remote
Test Operation
138