Daikin VRV IV Q+ Series Installer And User Reference Manual page 102

18 | Piping installation
Installer and user reference guide
102
If
Heating operation
Cooling operation
Heating (middle 7‑segment display indicates " ")
Charging will continue, the 7‑segment display indication intermittently shows the
current low pressure value and the status indication "
When the remaining additional refrigerant amount is charged, close valve A
immediately and push BS3 to stop charging operation.
After BS3 is pushed, the ending code "
unit will check whether the ambient conditions are favourable to execute the test
run.
If
" ", " ", or " " appears
" ", or " " appears
INFORMATION
In case a malfunction code occurred during this automatic charging procedure, the
unit will stop and indicate "
Cooling (middle 7‑segment display indicates " ")
Automatic charging will continue, the 7‑segment display indication shows the
current low pressure value and the status indication "
If the 7‑segment display indication/user interface of indoor unit shows " " code,
charging is almost finished. When the unit stops operating, close valve A
immediately and check whether the 7‑segment display indication/user interface of
indoor unit shows " ". This indicates the automatic charging in cooling program
was finished successfully.
INFORMATION
When the charging amount is little, the "
the " " code will be displayed immediately.
When the required (calculated) additional refrigerant amount is already charged
before " " or "
If during the cooling operation for the automatic refrigerant charge the ambient
conditions go beyond the allowable for this operation mode, the unit will indicate
on the 7‑segment display "
in case the outdoor temperature is out of range. In this case, when the additional
refrigerant charging was not finished, step
4
refrigerant" [ 101] has to be repeated.
" " will be flashing. Push BS2 to restart the
procedure.
Malfunction code " " will appear. Push BS1 to
abort and restart the procedure.
" will appear. When BS2 is pushed, the
Push BS1 to finish the automatic charging
function procedure. The ambient conditions are
favourable to execute the test run.
The ambient conditions are NOT favourable to
execute the test run. Push BS1 to finish the
automatic charging procedure.
" flashing. Push BS2 to restart the procedure.
" code may not be displayed, but instead
" indication appears, close valve A and wait till "
" in case indoor temperature is out of range or "
"Step 6a: To automatically charge
Then
".
Then
" intermittent.
" is displayed.
RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546229-1A – 2020.10
"