Daikin VRV IV Q+ Series Installer And User Reference Manual page 152

24 | Troubleshooting
Main code
Master
Installer and user reference guide
152
Sub code
Slave 1 Slave 2
—
—
—
—
Cause
Unusual low pressure on
suction line
Freeze-up prevention indoor
unit
Automatic charging nearly
finished
Automatic charging finished
Solution
Close valve A immediately.
Push BS1 to reset. Check
following items before
retrying autocharge
procedure:
▪ Check if the gas side stop
valve is opened correctly.
▪ Check if the valve of the
refrigerant cylinder
opened.
▪ Check if the air inlet and
outlet of the indoor unit are
not obstructed.
Close valve A immediately.
Push BS1 to reset. Retry
autocharge procedure.
Prepare for autocharge
stopping.
Finish autocharge mode.
RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546229-1A – 2020.10
is