6 Configuration
Installation and operation manual
17
RXYSQ6T8Y1B9
VRV IV-S system air conditioner
4P482276-1 – 2017.04
6.1.4
To access mode 1 or 2
After the units are turned ON, the display goes to its default
situation. From there, you can access mode 1 and mode 2.
Initialisation: default situation
NOTICE
Be sure to turn on the power 6 hours before operation in
order to have power running to the crankcase heater and
to protect the compressor.
Turn on the power supply of the outdoor unit and all indoor units.
When the communication between indoor units and outdoor unit is
established and normal, the display indication state will be as below
(default situation when shipped from factory).
10~12 min
b
c
a
a
Power ON
b
Default situation
c
LED indication when there is a malfunction
If the default situation is not displayed after 10~12 minutes, check
the malfunction code on the indoor unit user interface. Solve the
malfunction code accordingly. First, check the communication wiring.
Switching between modes
Use BS1 to switch between the default situation, mode 1 and
mode 2.
BS1 [5 s]
BS1
BS1
BS1
a
c
b
a
Default situation (H1P OFF)
b
Mode 1 (H1P flashing)
c
Mode 2 (H1P ON)
BS1
Press BS1.
BS1 [5 s]
Press BS1 for at least 5 s.
INFORMATION
If you get confused in the middle of the process, press BS1
to return to the default situation.
6.1.5
To use mode 1
In mode 1 (and in default situation) you can read out some
information.
Example: 7‑LEDs display – Default situation
You can read out the status of low noise operation as follows:
#
Action
Button/display
1
Make sure the LEDs are
showing the default situation.
(H1P OFF)
2
Check the status of LED
H6P.
H6P OFF: Unit is currently
not operating under low noise
restrictions.
H6P ON: Unit is currently
operating under low noise
restrictions.
Example: 7‑LEDs display – Mode 1
You can read out setting [1‑5] (= the total number of connected
indoor units) as follows:
#
Action
Button/display
1
Start from the default
situation.
2
Select mode 1.
BS1 [1×]
3
Select setting 5.
("X×" depends on the setting
that you want to select.)
BS2 [X×]
(= binary 5)
4
Display the value of setting 5.
(there are 8 indoor units
connected)
BS3 [1×]
(= binary 8)
5
Quit mode 1.
BS1 [1×]