Error Codes When Charging Refrigerant; Checks After Charging Refrigerant - Daikin VRV IV+ RXYTQ8U5YF Installer And User Manual

17.4.7 Error codes when charging refrigerant

17.4.8 Checks after charging refrigerant

RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P561157-1B – 2021.11
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
Indicates an indoor unit which
is not compatible with leak
detection functionality is
installed (e.g., RA DX indoor
unit, Hydrobox, ...)
Other —
malfunction
code
▪ Are all stop valves open?
▪ Is the amount of refrigerant, that has been added, recorded on the refrigerant
charge label?
NOTICE
Make sure to open all stop valves after (pre-) charging the refrigerant.
Operating with the stop valves closed will damage the compressor.
Cause
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
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.
Refer to requirements to be
able to execute leak detection
operation.
Close valve A immediately.
Confirm the malfunction code
and take corresponding action,
"23.1 Solving problems based
on error
17 Piping installation
|
Solution
cylinder
4
codes" [ 127].
Installer and user reference guide
is
89