Mitsubishi Electric MSZ-RW25VG Service Manual page 17

8-7. ADJUSTING POSITION GAPS BETWEEN THE LEFT AND RIGHT HIRIZONTAL VANES AT UPPER AND LOWER SIDE
When there are position gaps between the left and right horizontal vanes at upper and lower side, follow the pro-
cedure below for the service.
1. Prior check
Checks before repairing: check following items (a) to (e) if there are factors causing torsion on the body of the indoor
unit installed. Correct the factor if there is a problem.
(a) Bumps on the installation surface due to a lumber or others.
(b) Contact of the indoor unit or an installation board with a pillar.
(c) The wall sleeve, pipes, or drain horse cause the lower part of the indoor unit to be lifted toward you.
(d) Deformation of a nozzle due to tension of the drain horse or pipes.
(e) An installation board not installed as described in the installation manual
(Refer to the installation manual.)
NOTE 1: If there is no problem in (a) to (e) items, follow the procedure 8-7.2. "How to adjust position gaps of the vanes"
below for the service.
2. How to adjust position gaps of the vanes
Prepare the remote controller attached with the product (hereinafter, remote controller). Follow the procedure below to
fine-adjust the position gaps (angle) between the left and right vanes at upper and lower side.
NOTE 2: You cannot return the vanes to initial state (angle) by resetting their adjustments amount once adjusting the
left and right vanes at upper and lower side.
(1) Supply the power with the air conditioner.
(2) Press [ OFF/ON] button on the remote controller to turn the air conditioner and the remote controller off.
(3) While holding down [
VANE-L] and [
The settings of "cooling" and "horizontal vane angle 1 ( horizontal position)" are sent to the indoor unit, and the unit
starts the vane adjusting mode.
NOTE 3: Return to (1) if the air conditioner does not operate.
(4) When the upper and lower vanes are set to the "horizontal vane angle 1 ( horizontal position)", press
buttons or [
adjustment.
Pressing [
vane. Align the positions of the left vanes with those of the right vanes respectively.
(5) After the adjustment work is complete, pressing [
controller to be turned off as shown in Figure 1; however, the air conditioner does not turn off.
Press [ OFF/ON] button twice more continuously to turn the air conditioner and the remote controller off.
(6) Adjustment work is complete. Start cooling operation normally to confirm the operation.
NOTE 4 :
•The gap amounts between the left and right vanes at
upper and lower side at each vane position (setting
position) might differ depending on the installation condi-
tions.
(Please adjust the vanes visually with the indoor unit
installed if using the remote controller to correct the
position gaps between vanes).
•This method with the remote controller does not support
for correcting the position gaps between the vanes with
them fully closed and the gaps between the vanes and
the body of the indoor unit installed.
Check 8-7.1. Prior check whether torsion on the body
of the indoor unit installed leads to the position gaps
between the vanes with them fully closed or not.
•The adjustments amount using the remote controller
neither can be reset nor checked.
•To return the vanes to the initial state, replace the indoor
electric control P.C board.
•When the P.C board is replaced after the position gaps
have been corrected, readjust the gaps between the left
and right vanes at upper and lower side.
OBH902A
VANE-L] and [ VANE-R] on remote controller, press [
VANE-R] until the display changes as shown in Figure 2.
] [ ] buttons on the remote controller to move the positions (angle) of the left vanes need for
] [ ] buttons moves the upper left vane and pressing [ ] [
OFF/ON] button on the remote controller once allows the remote
CIRCULATOR
[Figure 1]
Remote controller state:
OFF
17
RESET], and keep holding [
[
] buttons moves the lower left
To adjust the
upper vane (left)
CIRCULATOR
To adjust the
lower vane (left)
[Figure 2]
Remote controller state:
Vane adjusting mode.
(The vane adjusting mode is not canceled
even if a certain period has elapsed.)
] [ ]