User manual MITSUBISHI KA12

[. . . ] For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit. Before installing the unit, make sure you read all the "Safety Precautions". the "Safety Precautions" provide very important points regarding safety. Please report to or take consent by the supply authority before connection to the system. [. . . ] Also, if you have to climb up on a stool to do the job, be careful not to fall. ⷠWhen the filter is removed, do not touch the metallic parts inside the indoor unit, otherwise injury may result. When 2 or more different types of indoor unit are controlled, the cleaning Period differs with the type of filter. When the master unit cleaning period arrives, "FILTER" is displayed. When the filter display goes off, the cumulative time is reset. ) "FILTER" or "Clean Filter" indicates the cleaning period when the air conditioner was used under general indoor air conditions by criteria time. Since the degree of dirtiness depends on the environmental conditions, clean the filter accordingly. The filter cleaning period cumulative time differs with the model. Clean the filters using a vacuum cleaner. If you do not have a vacuum cleaner, tap the filters against a solid object to knock off dirt and dust. ⷠIf the filters are especially dirty, wash them in lukewarm water. Take care to rinse off any detergent thoroughly and allow the filters to dry completely before putting them back into the unit. caution: · Do not dry the filters in direct sunlight or by using a heat source, such as an electric heater: this may warp them. ⷠDo not wash the filters in hot water (above 122°F), as this may warp them. ⷠMake sure that the air filters are always installed. Operating the unit without air filters can cause malfunction. ⷠBefore you start cleaning, stop operation and turn OFF the power supply. ⷠIndoor units are equipped with filters to remove the dust of sucked-in air. Clean the filters using the methods shown in the following sketches. Pull the knob on the intake grille in the direction indicated by the arrow and it should open. Release the knob on the center edge of the intake grille and pull the filter forward to remove the filter. (Airflow is reduced when the filter is dirty or clogged. [. . . ] Turn off the power switch immediately and consult your dealer. Be sure to provide the dealer with the model name and information that appeared in the remote controller display. When cooling operation stops, the drain pump operates and then stops. The indoor operation sound level is affected by the acoustics of the particular room as shown in the following table and will be higher than the noise specification, which was measured in an echo-free room. [. . . ]