Daikin RXYQ6BRY16 Installation Manual page 47

NOTICE
The unit's internal piping is already factory
•
charged with refrigerant, so be careful when
connecting the charge hose.
After adding the refrigerant, do not forget to
•
close the lid of the automatic refrigerant
charge valve. The tightening torque for the lid
is 10.7 to 14.7 N·m.
In order to ensure uniform refrigerant
•
distribution, it may take the compressor
±10 minutes to start up after the unit has
started operation. This is not a malfunction.
5A A dding refrigerant by using the automatic
charging with test run function.
INFORMATION
The automatic refrigerant charging has limits as
described below.
Outdoor temperature: 0°C DB~43°C DB.
•
Indoor temperature: 10°C DB~32°C DB.
•
6A
The remaining additional refrigerant charge can
be charged by operating the outdoor unit
depending on the ambient limitation conditions
(see above).
Procedure
Activate outdoor unit field setting [2-3]=2 to
„
perform the automatic refrigerant charging with
test run function, wait while the unit is preparing
for operation. 7-segment display flashing "t01"
(pressure equalization is executed):
Cooling operation started: 7-segment display
-
flashing "t02", "t03" till "t05" will be flashed
(startup control, waiting for stable cooling,
auto charging operation).
During "t01" to "t05" is flashing, push BS2 more
„
than 5 seconds within 3 minutes. Open valve C.
If BS2 is not pushed within 3 minutes after
"t05" flashing, a malfunction code will appear:
Malfunction code "p8" will appear. Push BS2
-
more than 5 seconds to restart the procedure.
Automatic charging and test run will continue,
the currently displayed number will stop flashing.
Then perform test run continuously (see "16.1.2
Test operation", page 55).
When unit stops operations, close valve C and
check whether the 7-segment indication flashing
"t10". Push BS1 to leave program.
This indicates the automatic charging with test
run in cooling program was finished successfully.
Information which may occur during additional
refrigerant charging procedures:
p8: The automatic refrigerant charge with test run
is not activated.
Action: Reset malfunction by push BS2 more
than 5 seconds. Retry auto charge operation
"t05" procedure.
01_EN_3P748230-1.indd 45
INFORMATION
When a malfunction is detected during the
•
procedure (e.g, in case of closed stop valve),
a malfunction code will be displayed. In that
case, refer to "16.2 Malfunction code list"
and solve the malfunction accordingly.
Resetting the malfunction can be done by
pushing BS2 more than 5 seconds.
The procedure can be restarted from 6A).
Aborting the automatic refrigerant charge is
•
possible by pushing BS1. The unit will stop
and return to idle condition.
5B Adding refrigerant by using the automatic
charging function.
INFORMATION
The automatic refrigerant charging has limits as
described below.
Outdoor temperature: 0°C DB~43°C DB.
•
Indoor temperature: 10°C DB~32°C DB.
•
6B
The remaining additional refrigerant charge can
be charged by operating the outdoor unit
depending on the ambient limitation conditions
(see above).
Procedure
Idle (default) screen is shown.
„
Push BS2 once, indication "888".
„
Push BS2 for more than 5 seconds, wait while
„
the unit is preparing for operation.
7-segment display indication: "t01" (pressure
control is executed):
Cooling operation is started: indication "t02"
-
till "t03" will be displayed (start up control;
waiting stable cooling operation).
When "t03" starts flashing (ready for charging),
„
push BS2 within 5 minutes. Open valve C.
If BS2 is not pushed within 5 minutes, a
malfunction code will appear:
Cooling operation: malfunction code "p2" will
-
appear. Push BS3 to restart the procedure.
Cooling (middle segment indicates "0")
Automatic charging will continue, the 7-segment
indication shows the current low pressure value
and the status indication "t03" intermittent.
If the 7-segment indication/user interface of
indoor unit shows "pe" code, charging is almost
finished. When the unit stops operating, close
valve C and check whether the 7-segment
indication/user interface of indoor unit shows "p9".
This indicates the automatic charging in cooling
program was finished successfully.
Perform the test procedure as described in
•
16.1 Test operation on page 54.
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23/01/2023 17:24:46