Mitsubishi Electric MSZ-LN25VGW Operating Instructions Manual page 12

● OPERATING INSTRUCTIONS ●
N
IGHT MODE OPERATION
NIGHT mode changes the brightness of the operation indicator, disables
the beep sound and limits the noise level of the outdoor unit.
Press during operation to activate NIGHT mode.
• The operation indicator lamp dims.
• The beep sound will be disabled except that emitted when the opera-
tion is started or stopped.
• Noise level of the outdoor unit will be lower than that mentioned in
SPECIFICATIONS.
Press again to cancel NIGHT mode.
Note:
• Noise level of the outdoor unit may not change after start-up of the unit, dur-
ing the protection operation, or depending on other operating conditions.
• The fan speed of the indoor unit will not change.
• The operation indicator lamp will be hard to be seen in a bright room.
• Operating POWERFUL operation during NIGHT mode will increase the noise
level of the outdoor unit.
• Noise level of the outdoor unit will not decrease during Multi system operation.
En-11
A
IR PURIFYING OPERATION
In the AIR PURIFYING operation, the indoor unit built-in device reduces
airborne fungi, viruses, mold, and allergens.
Press to start AIR PURIFYING operation.
• AIR PURIFYING lamp turns on. (Display section)
Press again to cancel AIR PURIFYING opera-
tion.
• AIR PURIFYING lamp turns off. (Display section)
Note:
• Never touch the air purifying device during operation. Although the air pu-
rifying device is safety-conscious design, touching this device could be the
cause of trouble as this device discharge high voltage electricity.
• A "hissing" sound may be heard during the air purifying operation. This sound
is produced when plasma is being discharged. This is not a malfunction.
• Air purifying lamp does not turn on if the front panel is not closed completely.