Error Codes When Charging Refrigerant - Daikin VRV IV+ RYYQ14U7Y1B Series Installer And User Manual

18 | Piping installation

18.4.8 Error codes when charging refrigerant

Installer and user reference guide
108
3 Activate outdoor unit setting [2‑20]=1 to start manual refrigerant charge
mode. Refer to "Mode 2: Field
Result: The unit will start operation.
4 Valve A can be opened. Charging of remaining additional refrigerant can be
done.
5 When the remaining calculated additional refrigerant amount is added, close
valve A and push BS3 to stop the manual refrigerant charging procedure.
INFORMATION
The manual refrigerant charge operation will automatically stop within 30 minutes. If
charging is not completed after 30 minutes, perform the additional refrigerant
charging operation again.
6 Perform the test procedure as described in "21 Commissioning" [
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
when charging
Resetting the malfunction can be done by pushing BS3. The procedure can be
restarted from
▪
Aborting the manual refrigerant charge is possible by pushing BS3. The unit will
stop and return to idle condition.
Code
Unusual low pressure on
suction line
Freeze-up prevention indoor
unit
Indoor unit is out of
temperature range for leak
detection operation
Outdoor unit is out of
temperature range for leak
detection operation
4
settings" [ 130] for details.
4
refrigerant" [ 108] and solve the malfunction accordingly.
"Step 6b: To manually charge
Cause
4
146].
"Error codes
4
refrigerant" [ 107].
Solution
Close valve A immediately. Push
BS3 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
BS3 to reset. Retry autocharge
procedure.
Retry when ambient conditions
are satisfied.
Retry when ambient conditions
are satisfied.
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1B – 2020.10
is