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Manafacture: MRV Communications File size: 3.19 mb File name: Language of manual:

Please wait for 3 min. 18 Trouble Shooting During DRY operation, there is no air sent out or fan speed cant be changed. In HEAT mode, the outdoor unit generates water or steam. This occurs during removal of the frost (in defrosting operation) on the radiator of outdoor unit. Defrost operation In HEAT mode, the indoor fan still keeps running even the unit operation stops. After the unit stops, the indoor fan will continue to run for a while to eliminate residual heat. Before asking for after-service to an authorized service center, please check your air conditioner for the following items The system couldnt start ON OFF Is power on/off switched on? The power on/off switch is not at position of "ON". Is the power supply line normal? Power failure? Is current leakage breaker triggered? Please do immediately cut off power supply and contact the authorized service center. 18 When Fault Occurs Poor cooling or heating Is the operation controller Is there any door or window Are there any obstructs adjusted as required? left open? before the air inlet or outlet? Poor cooling Is there any other heat Is there any direct sunlight Are there too many people source in the room? into the room? in the room? If, after the above checks and the corresponding corrective actions, the system remains abnormal operation, or the following facts appear, please turn off the air conditioner and then contact the local authorized service center. Frequent open of fuse or breaker. There is water leakage during COOL or DRY operation. The operation is abnormal or abnormal sound is heard. 19 Notice to Users Notice to users To ensure proper operation of the system, the user shall follow this instruction manual to install the unit. When handling the air conditioner, please be care not to scratch the case surface. This instruction manual describes the installation method aided with the installation tools specified by manufacturer . The maximum length of connection pipe is 50 m, and the maximum difference between levels of indoor unit and outdoor unit shall be 30 m. Please keep the installation instruction manual well for reference in maintenance or changing installation position. After installed, please follow the operational instruction manual to use the air conditioner properly. Information about application Adjust your desired air flow direction Keep appropriate room temperature Too cool or too warm wont benefit to your health, but causes an increased energy consumption. Avoid direct sunlight and gas flow Effectively use the timer UsingTIMER mode you can enjoy acomfortable room temperaturewhen wake up or come back home. Maximum temperature Caution: After installation, please confirm no refrigerant leaks. 20 Installation Precautions Before installing, do read this "Safety precautions" carefully to guarantee the proper installation. The below attentive matters are divided into" ! Warning" " and " ! Note" two parts. When the wrong installation occur, it is very possible death and severe injury and other serious accidents will happen. For those items are listed in" ! Warning" part. But even the items listed in " ! Note" part can also cause serious accidents. Above all, both the two parts are very important contents related to safety, so they must be obeyed. After finishing the installation work, do test run to verify everything is normal. After that please explain the using and maintenance methods to the user. Additionally, give this installation manual and operation manual to the user and ask them to keep it properly. ! Warning The distributing shop, where you bought the air conditioner, or the specified shops shall do the installation work. If you do the installation work by yourself, the improper installation will cause water leakage, electric shock fire and other accidents. The installation work shall be in line with what the installation manual specified. If installation is not proper, water leakage, electric shock, fire and other accidents will occur. Install the air conditioner to a place where can definitely stand its weight. Places not firm enough will cause drop down of unit resulting in body hurt. The installation work shall be preventive to typhoon and earthquake. If the installation work is not met with the requirements, overturn of the unit will occur resulting in accidents. The wiring work shall be done by a qualified person and referred to the " technical standard of electric equipment" , "indoor wiring regulation" and what the manual specified. Do use special circuit. If the capacity of the circuit is not enough or bad work, electric shock, fire and other accidents will happen. Using the specified cable to do wiring work and connecting firmly and properly. Fix the connecting part of the terminals to prevent it from the external force.Improper connection and fixing will cause heating and fire etc. accidents. Wiring shall be kept in correct shape avoiding extrusion. After installation, the electric box cover and the external panel ...

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