Daikin RXYTQ10U7YF [95/152] Piping installation

Daikin RXYTQ10U7YF [95/152] Piping installation
18 | Piping installation
Installer and user reference guide
95
RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P561157-1A – 2020.10
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 "Error codes
when charging refrigerant" [4 95] and solve the malfunction accordingly.
Resetting the malfunction can be done by pushing BS3. The procedure can be
restarted from "Step 6: To manually charge refrigerant"[494].
Aborting the manual refrigerant charge is possible by pushing BS3. The unit will
stop and return to idle condition.
18.4.7 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.
Indicates an indoor unit which
is not compatible with leak
detection functionality is
installed (e.g., RADX indoor
unit, Hydrobox, …)
Refer to requirements to be
able to execute leak detection
operation.
Other
malfunction
code
Close valve A immediately.
Confirm the malfunction code
and take corresponding action,
"24.1Solving problems based
on error codes"[4134].
18.4.8 Checks after charging refrigerant
Are all stop valves open?
Is the amount of refrigerant, that has been added, recorded on the refrigerant
charge label?

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