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Operation
Installer and user reference guide
29
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
To adjust
For programming temperature, fan speed and air flow direction refer to the
operation manual of the user interface.
7.4 Using the dry program
7.4.1 About the dry program
▪
The function of this program is to decrease the humidity in your room with
minimal temperature decrease (minimal room cooling).
▪
The micro computer automatically determines temperature and fan speed
(cannot be set by the user interface).
▪
The system does not go into operation if the room temperature is low (<20°C).
7.4.2 To use the dry program (WITHOUT cool/heat changeover remote control switch)
To start
1
Press the operation mode selector button on the user interface several times
and select (program dry operation).
2
Press the ON/OFF button of the user interface.
Result:
The operation lamp lights up and the system starts operating.
3
Press the air flow direction adjust button (only for double-flow, multi-flow,
corner, ceiling-suspended and wall-mounted). Refer to
30] for details.
To stop
4
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.
7.4.3 To use the dry program (WITH cool/heat changeover remote control switch)
To start
1
Select cooling operation mode with the cool/heat changeover remote control
switch.
1
1
2
Press the operation mode selector button on the user interface several times
and select (program dry operation).
