Error Codes When Charging Refrigerant; Checks After Charging Refrigerant; To Fix The Fluorinated Greenhouse Gases Label - Daikin VRV IV Q+ Series Installer And User Reference Manual

18 | Piping installation

18.4.8 Error codes when charging refrigerant

18.4.9 Checks after charging refrigerant

18.4.10 To fix the fluorinated greenhouse gases label

Installer and user reference guide
104
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
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.
1 Fill in the label as follows:
Contains fluorinated greenhouse gases
RXXX
f
GWP: XXX
2
1
1 +
GWP × kg
1000
Cause
a
b
kg
1 =
kg
c
2 =
d
kg
2
=
=
e
tCO eq
2
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.
Close valve A immediately.
Confirm the malfunction code
and take corresponding action,
"24.1 Solving problems based
4
on error codes" [ 147].
RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546229-1A – 2020.10
is