6
|
Installation
Installer and user reference guide
74
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10
3
Activate outdoor unit setting [2‑20]=1 to start manual refrigerant charge
mode. Refer to
"7.2.8 Mode 2: Field settings"
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
108].
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
codes when charging refrigerant"
74] and solve the malfunction accordingly.
Resetting the malfunction can be done by pushing BS3. The procedure can be
restarted from
"6.7.7 Step 6b: To manually charge refrigerant"
73].
▪
Aborting the manual refrigerant charge is possible by pushing BS3. The unit will
stop and return to idle condition.
6.7.8 Error codes when charging refrigerant
Code
Cause
Solution
Unusual low pressure on
suction line
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
is
opened.
▪
Check if the air inlet and
outlet of the indoor unit are
not obstructed.
Freeze-up prevention indoor
unit
Close valve A immediately. Push
BS3 to reset. Retry autocharge
procedure.
Indoor unit is out of
temperature range for leak
detection operation
Retry when ambient conditions
are satisfied.
Outdoor unit is out of
temperature range for leak
detection operation
Retry when ambient conditions
are satisfied.
Содержание VRV IV+
Страница 165: ......
Страница 166: ......
Страница 167: ......
Страница 168: ...4P546228 1A 2019 10 Copyright 2018 Daikin Verantwortung für Energie und Umwelt ...