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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
codes when charging refrigerant" on page 23
solve the malfunction accordingly. Resetting the
malfunction can be done by pushing BS3. You can
restart the "Charging" instructions.
▪ Aborting the manual refrigerant charge is possible by
pushing BS3. The unit will stop and return to idle
condition.
10 Open valve A.
11 Charge refrigerant until the remaining determined additional
refrigerant amount is added, and then close valve A.
12 Press BS3 to stop the manual additional refrigerant charge
mode.
NOTICE
Make sure to open all stop valves after (pre-) charging the
refrigerant.
Operating with the stop valves closed will damage the
compressor.
NOTICE
After adding the refrigerant, do not forget to close the lid of
the refrigerant charging port. The tightening torque for the
lid is 11.5 to 13.9 N•m.
6.7.5
Error codes when charging refrigerant
INFORMATION
If a malfunction occurs, the error code is displayed on the
user interface of the indoor unit.
If a malfunction occurs, close valve A immediately. Confirm the
malfunction code and take corresponding action,
problems based on error codes" on
6.7.6
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
Greenhouse gas emissions of the total refrigerant charge
expressed as tonnes CO
f
GWP = Global warming potential
RXYSQ6T7Y1B9
VRV IV-S system air conditioner
4P404677-1A – 2016.03
"6.7.5 Error
and
"11.3 Solving
page 37.
a
b
kg
kg
c
kg
d
e
tCO
eq
2
-equivalent
2
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes
CO
-equivalent) is used to determine the maintenance
2
intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
2 Fix the label on the inside of the outdoor unit near the gas and
liquid stop valves.
6.8
Connecting the electrical wiring
6.8.1
About connecting the electrical wiring
Typical workflow
Connecting the electrical wiring typically consists of the following
stages:
1
Making sure the power supply system complies with the
electrical specifications of the units.
2
Connecting the electrical wiring to the outdoor unit.
3
Connecting the electrical wiring to the indoor units.
4
Connecting the main power supply.
Field wiring: Overview
Field wiring consists of power supply (always including earth) and
indoor-outdoor communication (= transmission) wiring.
Example:
380-415 V
3N~ 50 Hz
a
b
c
Y1
F1/F2
(16 V)
F1/F2
a
Main switch
b
Earth connection
c
Power supply wiring (including earth) (sheathed cable)
F1/F2
Transmission wiring (sheathed cable)
Y1
Outdoor unit
d
Indoor unit
e
User interface
Power supply wiring and transmission wiring
It is important to keep the power supply and the transmission wiring
separated from each other. In order to avoid any electrical
interference the distance between both wiring should always be at
least 50 mm.
NOTICE
▪ Be sure to keep the power line and transmission line
apart from each other. Transmission wiring and power
supply wiring may cross, but may not run parallel.
▪ Transmission wiring and power supply wiring may not
touch internal piping (except the inverter PCB cooling
pipe) in order to avoid wire damage due to high
temperature piping.
▪ Firmly close the lid and arrange the electrical wires so
as to prevent the lid or other parts from coming loose.
6 Installation
220-240 V
1~ 50 Hz
d
(16 V)
e
Installer and user reference guide
23
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Troubleshooting
