How To Set The Airflow Direction - Mitsubishi Electric FDT125VNVF Technical Manual

6. Please rotate a hook, put in the slot on the panel, and carry out fixing the panel
temporarily. [Figure 4]
Slot
7. Tighten the two bolts used for fixing the panel temporarily and the other two.
Caution
• Improperly tightened hanging bolts can
cause the problems listed below, so make
sure that you have tightened them
securely.
Air leakage
Air leakage along
the ceiling
Fouling
Dew condensation or dripping
8. Please open the lid of a control box.
9. Like drain pump wiring, please band together by the clamp and put in louver motor wiring
into a control box. [Figure 5]
10. Please connect a louver motor connector. [Figure 5]
Drain pump connector
11. Attach two chains to the intake grille with two screws. [Figure 6]
Chain
12. Replace the corner panels. Please also close a chain with a screw together
then. [Figure 7]
13. Close the intake grill.
Caution
Make sure there is no stress given on the panel when adjusting the height of the indoor
unit to avoid unexpected distortion. It may cause the distortion of panel or failing to
close the air return grille.
[Figure 4]
• If there is a gap remaining between the
ceiling and the decorative panel even
after the hanging bolts are tightened,
adjust the installation level of the indoor
unit again.
Make sure no gap is left here.
Louver motor connector
Wire intake
Clamp
Louver motor wiring
[Figure 5]
Chain
[Figure 6]
[Figure 7]
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⑦ How to set the airflow direction

It is possible to change the movable range of the louver on the air outlet from the wired remote controller. Once the
top and bottom position is set, the louver will swing within the range between the top and the bottom when swing
operation is chosen. It is also possible to apply different setting to each louver.
Note: This function is not able to be set with wireless remote controll or simple remote controll (RCH-H3).
1
Stop the air conditioner and press
LOUVER button simultaneously for three seconds or more.
The following is displayed if the number of the indoor units connected to the
remote controller is one. Go to step 4.
" "
" "
The following is displayed if the number of the indoor units connected to the
remote controller are more than one
" "
" "
2
▲ ▼
Press or button. (selection of indoor unit)
Select the indoor unit of which the louver is set.
[EXAMPLE]
" " " " "
" "
3
Press SET button. (determination of indoor unit)
Selected indoor unit is fixed.
[EXAMPLE]
(displayed for two seconds)
" "
" "
" "
4
▲ ▼
Press or button. (selection of louver No.)
Select the louver No. to be set according to the right figure.
[EXAMPLE]
" " " " "
" "
5
Press SET button. (Determination of louver No.)
The louver No. to be set is confirmed and the display shows the
upper limit of the movable range.
[EXAMPLE] If No.1 louver is selected,
← current upper limit position
" "
6
▲ ▼
Press or button. (selection of upper limit position)
Select the upper limit of louver movable range.
"position 1" is the most horizontal, and "position 6" is the most downward.
"position --" is to return to the factory setting. If you need to change the setting to
the default setting, use "position --".
(the most horizontal)
" "
" "
" "
" "
" "
(the most downwards)
" "
" " (return to the default setting)
7
Press SET button. (Fixing of the upper limit position)
The upper limit position is fixed and the setting position is displayed for two
seconds. Then proceed to lower limit position selection display.
[EXAMPLE]
(displayed for two seconds)
(shows current setting)
8
▲ ▼
Press or button. (Selection of lower limit position)
Select the lower limit position of louver.
"position 1" is the most horizontal, and "position 6" is the most downwards.
"position --" is to return to the factory setting. If you need to change the setting to
the default setting, use "position --".
(the most horizontal)
(the most downwards)
(return to the default setting)
9
Press SET button. (Fixing of the lower limit position)
Upper limit position and lower limit position are fixed, and the set positions are
displayed for two seconds, then setting is completed.
• After the setting is completed, the louver which was set moves from the
original position to the lower limit position, and goes back to the original
position again. (This operation is not performed if the indoor unit and/or indoor
unit fan is in operation.)
[EXAMPLE]
(displayed for two seconds)
10
Press button.
Louver adjusting mode ends and returns to the original display.
For setting the swing range of other louvers, return to 1 and proceed same procedure respoctivoly.
Caution
If the upper limit position number and the lower limit position number are set to the same position, the
louver is fixed at that position auto swing does not function.
ATTENTION
If you press RESET button during settings, the display will return to previous display.
If you press button during settings, the mode will be ended and return to original display, and the
settings that have not been completed will become invalid.
When plural remote controllers are connected, louver setting operation cannot be set by slave remote
controller.
If it is necessary to fix the louver position manually, follow the procedure mentioned below.
1. Shut off the main power switch.
2. Unplug the connector of the louver motor which you want to fix the position.
Make sure to insulate unplugged connectors electrically with a vinyl tape.
3. Adjust the louver position slowly by hand so as to be within the applicable range mentioned below table.
<Range of louver setting>
Vertical airflow direction Horizontal 23°
Dimension L (mm) 40
Caution
• Any automatic control or operation from the remote controller will be disabled on the louver whose
position is fixed in the above way.
• Do not set a louver beyond the specified range. Failure to observe this instruction may result in
dripping, dew condensation, the fouling of the ceiling and the malfunctioning of the unit.
216
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'12 • PAC-T-174
PJA012D783
SET button and
"
NOTICE
• In case the louver No to be set is uncertain,
set any louver temporarily.
The louver will swing once when the setting
is completed and it is possible to confirm
the louver No and the position.
After that, choose the correct louver No and
set the top and bottom position.
NO.2
"
NO.1
NO.4
Control box
Piping
side
Louver No.
(horizontal)
①
②
③
④
the position of the louver
①
Upper
②
position
③
④
Movable
⑤
range
Lower
position
Louver
Louver motor
L
L
Connector
Louver motor
Downwards 50°
24 ※It can be set between 24~40mm freely.
NO.3
Drain
hose side
⑤
⑥
(downwards)
⑥