User manual FUJITSU AWTZ18LBC

[. . . ] OPERATING MANUAL ROOM AIR CONDITIONER CEILING WALL TYPE HEAT & COOL MODEL (REVERSE CYCLE) Indoor Unit AWTZ14LBC AWTZ18LBC Outdoor Unit AOTZ14LBC AOTZ18LBC REFRIGERANT This Air Conditioner contains and operates with refrigerant R410A and Polyol Ester oil. R410A THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL. Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance and/or service of this product. KEEP THIS OPERATION MANUAL FOR FUTURE REFERENCE FUJITSU GENERAL LIMITED P/N9315236036-01 CONTENTS SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ADJUSTING THE DIRECTION OF AIR CIRCULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Cleaning operations will run for about 20 minutes and stop automatically. To start COIL DRY Operation Press the COIL DRY button (Fig. 5 c) (when the air conditioner is operating or stopped). Only the OPERATION Indicator Lamp (red) (Fig2. "COIL DRY" appears on the Remote Control Unit display and disappears after approximately 20 minutes. c) is pressed again during COIL DRY operation, COIL DRY operation will start again. NOTE! When COIL DRY operation begins, the Indoor Unit operates in the heating mode and the fan mode to dry the inside of the Indoor Unit. COIL DRY operation is most effective when performed frequently. To stop COIL DRY Operation Press the START/STOP button (Fig. 5 Y) during COIL DRY operation. The OPERATION Indicator Lamp (red) (Fig2. The Remote Control Unit will be in the operation-stopped condition. About COIL DRY Operation The following procedures are performed during COIL DRY operation before the operation automatically stops after approximately 20 minutes. 1 Drying After about 18 minutes of COIL DRY Operation, drying shall be performed on the interior of the indoor unit. 2 UV filter cleaning (about 2 minutes) UV rays are discharged onto the air filter, so that all dirt, odor, and dust undergo disinfecting and deodorizing processing, and are recycled into the dust box. At the same time, the air filter's disinfecting and deodorizing functions are reset, and returned to cleaning mode. 3 Operations stop The COIL DRY operation come to an end. 14 AUTO FILTER MAINTENANCE FUNCTION This is a convenient function that automatically removes dust from the air filters after a set amount of time of air conditioner operation. The auto filter maintenance function can also be started using the remote control unit. Auto Filter Maintenance About operating the Auto Filter Maintenance Auto filter maintenance is performed after the air conditioner operates for a set amount of time and is stopped or the FILTER button (Fig. 5 d) on the Remote Control Unit is pressed. During auto filter maintenance, the MAINTENANCE SIGN Indicator Lamp (red) (Fig. 2 4) on the Indoor Unit will light. CAUTION! Do not touch the air filters during the auto filter maintenance. The Indoor Unit may malfunction if the air filters are pulled or pushed. If the air filters are unnecessarily pulled, they may be damaged or fall and cause personal injury. 1. Air filters come out The air filters automatically come out of the indoor unit under the open panel. At this time, the dust on the air filters is collected in the dust boxes (behind the open panel). Open panel 2. Air filter retract After the air filters come out, they automatically retract to their original positions in the Indoor Unit. When the auto filter maintenance is complete, the MAINTENANCE SIGN Indicator Lamp (red) (Fig. 2 4) on the Indoor Unit goes out. MAINTENANCE SIGN Indicator Lamp(red) flashes The MAINTENANCE SIGN Indicator Lamp (red) (Fig. 2 4) will flash during auto filter maintenance if the air filters are not Installed or are pulled. If this occurs during air conditioner operation, unplug the power supply cord from the Electrical outlet and follow procedures "Dust Box Maintenance" to install the air filters. Changing the FILTER MAINTENANCE Interval The filter maintenance interval can be changed. In such a situation, please switch the Interval to 50H for more thorough cleaning. While cleaning, please place the remote control in stop mode (so that only the CLOCK and the time are displayed). Switches from displaying the current time to displaying the interval, and begins blinking. Pressing these buttons will allow you to scroll between the figures below. Point the remote control to the main unit and press the SET button (Fig. 5 o). [. . . ] Poor Cooling performance: Did you adjust the room temperature settings (thermostat) correctly? In the case of Cooling operation, is a window allowing bright sunlight to enter?(Close the curtains. ) In the case of Cooling operation, are there heating apparatus and computers inside the room, or are there too many people in the room?The unit operates differently from the Remote Control Unit's setting: Are the Remote Control Unit's batteries dead? [. . . ]