Check Operation - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

Test Operation
1.2

Check Operation

1.2.1 RQYQ-P
Make sure to carry out the check operation after the initial installation. Otherwise, the error code "U3" will
be displayed on the remote controller and normal operation cannot be carried out.
In the check operation, the following checks and judgement will be performed:
(1) Check of the stop valve opening
(2) Check for wrong wiring
(3) Recovery of contamination
(4) Check of the amount of refrigerant
(5) Automatic judgement of piping length
The automatic check operation carries out the following processes. Approximately 70 minutes (maximum
120 minutes) are required before judgement is completed. However if additional charging from the
refrigerant cylinder is necessary, additional time will be required.
Check the setting
mode 1
Press and hold the TEST
button (BS4) for 5 seconds or
more. (Check operation begins
after approximately 1 minute.)
When additional
charge is not
necessary.
When additional
charge is
necessary
Device stops.
Check that the LEDs are as
shown at right, then connect
the refrigerant cylinder.
After connecting the cylinder,
press and hold the TEST button
(BS4) for 5 seconds or more.
When the LEDs are as
shown at right, open
the cylinder valve.
Press the TEST button
(BS4) within 3 minutes
after opening the valve.
Unit stops.
* To cancel check operation before it is completed, press the RETURN button (BS3).
64
• If LED "H1P" is off, the mode is setting mode 1. If "H1P" is blinking or off, press
the MODE (BS1) button to change to setting mode 1.
• In setting mode 1, verify that LED "H2P" is off (normal). If "H2P" is on (error), use
the remote control to check the details of the error and correct the trouble.
(The system is checking for indoor unit errors. If "H2P" is blinking (preparing), wait
for a short time until the transmission is completed.)
Refrigerant amount check operation
1 (maximum 30 minutes)
The indoor unit fan is operated in order to
stabilize the refrigerant conditions, and the
LEDs appear as shown at right.
Stop valve and wrong wiring check
operation (approximately 5 minutes)
(Contamination operation is performed at the
same time.)
Refrigerant amount check operation
2 (approximately 5 minutes)
Checks and adjusts the refrigerant level.
(Contamination operation is performed at the
same time.)
The unit stops for additional refrigerant
charging, and the LED indicate the
"connect cylinder" instruction.
Wait for stable conditions after restart.
After restart, the LEDs indicate the "open
refrigerant valve" instruction for
approximately 6 minutes.
[LED indication for "open refrigerant
cylinder valve" instruction]
Additional refrigerant charging
operation (1 ~ 60 minutes)
(When refrigerant charging is completed)
(When refrigerant charge is insufficient)
COOL / HEAT select Low
MODE TEST Demand
noise
IND MASTER SLAVE
H1P H2P H3P H4P H5P H6P H7P
h l h h h h k
h l h h h k h
h l h h h k k
l l l h k h h
("P8" is displayed on the remote
controller.)
h l h h k h h
l l l h k h k
h l h h k h k
l l l h k k h
("P9" is displayed on the remote
controller.)
l l l h l h h
("PA" is displayed on the remote
controller.)
SiBE341027
If the device stops and the error
code is displayed on the indoor
unit remote controller, correct
the trouble by following the
"Troubleshooting" instructions.
• After correcting, perform
check operation again.
• To perform check
operation again, press the
RETURN button (BS3).
The LEDs return to the
indications shown below.
h h k h h h h
If the TEST button (BS4)
could not pressed within
3 minutes after the
"open valve" instruction
was displayed, return
and perform the
operation again.
This indicates either that
the refrigerant cylinder is
empty or that the valve
has not been opened.
↓
Either change the
cylinder and press and
hold BS4 for 5 seconds
or longer, or else press
and hold BS4 for 5
seconds or more and
then open the valve.
Test Operation