Mitsubishi Heavy Industries FDTC40ZHXV Technical Manual page 389

2
Correlation between illuminance at the receiver and
reachable area of the signal in a plain view. The draw-
ing in the right shows the correlation between the
reachable area of the signal and illuminance at the
receiver when the remote controller is operated at 1m
high under the condition of ceiling height of 2.4m.
3
Installation tips when several receivers are installed close Minimum distance between the indoor units which can avoid cross
communication is 5m under the condition of 300lux of illuminance at the receiver.
(When no lighting is installed within 1m of the receiver in an ordinary office )
(5) Backup button
A Backup button is provided on the receiver. Even when the operation
from the wireless remote controller is not possible (due to flat batter-
ies, controller Iost, or controller failure), still it possible to operate as
temporary means. Press the button directly when operating it.
(a) The air conditioner starts the operation with the condition of Auto
mode, 23ÝC of set point, High fan speed and horizontal louver
position.
(b) The air conditioner stops the operation when the button is pressed
when in operation.
(6) Cooling test run operation
¡
After safety confirmation, turn on the power.
¡
Transmit a cooling operation command with wireless remote controller, while the backup button on the receiver is pressed.
¡
If the backup button on the receiver is pressed during a test run, it will end the test run.
¡
If you cannot operate the unit properly during a test run, please check by consulting with inspection guides on the wiring
diagram of outdoor units.
(7) How to read the two-digit display
On the receiver of a wireless kit, a two-digit (7-segment) display is provided.
(a) An indication will be displayed for one hour after power on.
(b) An indication will be displayed for 3.5 seconds after transmitting a "STOP" command from the wireless remote controller or
the operation of the backup button to stop the unit.
(c) An indication appearing in (a) or (b) above will go off as soon as the unit starts operation.
(d) When there are no error records to indicate, addresses of all the connected units are displayed.
(e) When there are some error records remaining, the error records are displayed.
(f) Error records can be cleared by transmitting a "STOP" command from the wireless remote controller, while the backup
button is pressed.
364
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The receivable area of the
signal when the illuminance
at the receiver is 300lux
The receivable area of the
signal when the illuminance
at the receiver is 600lux
Backup button