Daikin VRV IV+ Installation And Operation Manual page 30

15 Electrical installation
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
problems based on error
malfunction accordingly. Resetting the malfunction can
be done by pushing BS1. The procedure can be
restarted from "Step 6a: To automatically charge
refrigerant" [ 4 29].
▪ Aborting the automatic refrigerant charge is possible by
pushing BS1. The unit will stop and return to idle
condition.
14.4.7 Step 6b: To manually charge refrigerant
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.
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
refrigerant" [ 4 30] and solve the
when charging
malfunction accordingly. Resetting the malfunction can
be done by pushing BS3. The procedure can be
restarted from "Step
refrigerant" [ 4 30].
▪ Aborting the manual refrigerant charge is possible by
pushing BS3. The unit will stop and return to idle
condition.
14.4.8 Error codes when charging refrigerant
Code Cause
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
Installation and operation manual
30
"19.1 Solving
codes" [ 4 40] and solve the
"Error codes
6b: To manually charge
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 is
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.
Code Cause
Indicates an indoor unit
which is not compatible
with leak detection
functionality is installed
(e.g., RA DX indoor unit,
Hydrobox, ...)
Other —
malfunction
code
14.4.9 Checks after charging refrigerant
▪ 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.
14.4.10 To fix the fluorinated greenhouse gases
label
1 Fill in the label as follows:
Contains fluorinated greenhouse gases
RXXX
1 =
f
GWP: XXX
2 =
2
1
+
1 2
=
GWP × kg
=
1000
a If a multilingual fluorinated greenhouse gases label is
delivered with the unit (see accessories), peel off the
applicable language and stick it on top of a.
b Factory refrigerant charge: see unit name plate
c Additional refrigerant amount charged
d Total refrigerant charge
e Quantity of fluorinated greenhouse gases of the total
refrigerant charge expressed as tonnes CO
f GWP = Global warming potential
NOTICE
Applicable legislation on fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO
2
Formula to calculate the quantity in CO
tonnes: GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000
Use the GWP value mentioned on the refrigerant charge
label.
2 Fix the label on the inside of the outdoor unit near the gas and
liquid stop valves.
15 Electrical installation
DANGER: RISK OF ELECTROCUTION
Solution
Refer to requirements to
be able to execute leak
detection operation.
Close valve A
immediately. Confirm the
malfunction code and take
corresponding action,
"19.1 Solving problems
based on error
codes" [ 4 40].
a
kg b
kg c
d
kg
e
tCO eq
2
equivalent.
2
equivalent.
equivalent
2
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546220-1C – 2020.10