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To stop
5 Press the ON/OFF button on the user interface once again.
Result: The operation lamp goes out and the system stops
operating.
NOTICE
Do not turn off power immediately after the unit stops, but
wait for at least 5 minutes.
6.4
Adjusting the air flow direction
Refer to the operation manual of the user interface.
6.4.1
About the air flow flap
Air flow flap types:
▪
Double flow + multi-flow units
▪
Corner units
▪
Ceiling suspended units
▪
Wall-mounted units
For the following conditions, a micro computer controls the air flow
direction which may be different from the display.
Cooling
▪ When the room temperature is
lower
than
the
set
temperature.
▪ When operating continuously at horizontal air flow direction.
▪ When continuous operation with downward air flow is performed
at the time of cooling with a ceiling-suspended or a wall-mounted
unit, the micro computer may control the flow direction, and then
the user interface indication will also change.
The air flow direction can be adjusted in one of the following ways:
▪ The air flow flap itself adjusts its position.
▪ The air flow direction can be fixed by the user.
▪ Automatic
and desired position
WARNING
NEVER touch the air outlet or the horizontal blades while
the swing flap is in operation. Fingers may become caught
or the unit may break down.
NOTICE
▪ The movable limit of the flap is changeable. Contact
your dealer for details. (only for double-flow, multi-flow,
corner, ceiling-suspended and wall-mounted).
▪ Avoid operating in the horizontal direction
cause dew or dust to settle on the ceiling or flap.
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P739915-1 – 2023.12
Heating
▪ When starting operation.
▪ When the room temperature is
higher
than
the
set
temperature.
▪ At defrost operation.
.
. It may
6.5
Setting the master user interface
6.5.1
About setting the master user interface
a
e
b
c
c
c
d
d
a
Outdoor unit
b
SV unit
c
VRV DX indoor unit
d
User interface
e
Direct connection to VRV DX indoor unit
When the system is installed as shown in the figure above, it is
necessary to – for each subsystem – designate one of the user
interfaces as the master user interface.
The displays of slave user interfaces show
centralised control) and slave user interfaces automatically follow the
operation mode directed by the master user interface.
Only the master user interface can select heating or cooling mode
(cooling/heating masterhood).
6.5.2
To designate the master user interface
1 Press the operation mode selector button of the current master
user interface for 4 seconds. In case this procedure was not yet
performed, the procedure can be executed on the first user
interface operated.
Result: The display showing
centralised control) of all slave user interfaces connected to the
same outdoor unit flashes.
2 Press the operation mode selector button of the controller that
you wish to designate as the master user interface.
Result: Designation is completed. This user interface is
designated as the master user interface and the display
showing
(changeover under centralised control) vanishes.
The displays of other user interfaces show
under centralised control).
Refer to the operation manual of the user interface.
6 Operation
b
c
c
d
d
d
(changeover under
(changeover under
(changeover
Installation and operation manual
13
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Troubleshooting
