7
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Operation
Installer and user reference guide
30
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
3
Press the ON/OFF button of the user interface.
Result:
The operation lamp lights up and the system starts operating.
4
Press the air flow direction adjust button (only for double-flow, multi-flow,
corner, ceiling-suspended and wall-mounted). Refer to
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.
7.5 Adjusting the air flow direction
Refer to the operation manual of the user interface.
7.5.1 About the air flow flap
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
Heating
▪
When the room temperature is lower
than the set temperature.
▪
When starting operation.
▪
When the room temperature is higher
than the set temperature.
▪
At defrost operation.
▪
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 .
