Daikin VRV IV+ RXYTQ8U5/U7YF Installation And Operation Manual

4 About the systemInstallation and operation manual6RXYTQVRV IV+ heat pump for high ambient temperatures4P546223-1C – 2021.11CAUTION: Pay attention to the fan!It is dangerous to inspect the unit whilethe fan is running.Make sure to turn OFF the main switchbefore executing any maintenancetask.CAUTIONAfter a long use, check the unit standand fitting for damage. If damaged, theunit may fall and result in injury.WARNINGNEVER replace a fuse with a fuse of awrong ampere ratings or other wireswhen a fuse blows out. Use of wire orcopper wire may cause the unit tobreak down or cause a fire.WARNING▪ Do NOT modify, disassemble,remove, reinstall or repair the unityourself as incorrect dismantling orinstallation may cause an electricalshock or fire. Contact your dealer.▪ In case of accidental refrigerantleaks, make sure there are no nakedflames. The refrigerant itself isentirely safe, non-toxic and non-combustible, but it will generate toxicgas when it accidentally leaks into aroom where combustion air from fanheaters, gas cookers, etc. is present.ALWAYS have qualified servicepersonnel confirm that the point ofleakage has been repaired orcorrected before resuming operation.WARNINGStop operation and shut OFF thepower if anything unusual occurs(burning smells etc.).Leaving the unit running under suchcircumstances may cause breakage,electrical shock or fire. Contact yourdealer.WARNINGThe refrigerant in the system is safeand normally does not leak. If therefrigerant leaks in the room, contactwith a fire of a burner, a heater or acooker may result in a harmful gas.Turn off any combustible heatingdevices, ventilate the room and contactthe dealer where you purchased theunit.Do NOT use the system until a serviceperson confirms that the portion wherethe refrigerant leaks is repaired.CAUTIONNEVER expose little children, plants oranimals directly to the airflow.CAUTIONDo NOT touch the heat exchanger fins.These fins are sharp and could resultin cutting injuries.4 About the systemThe indoor unit part of VRV IV heat pump system can be used forheating/cooling applications. The type of indoor unit which can beused depends on the outdoor units series.NOTICEDo NOT use the system for other purposes. In order toavoid any quality deterioration, do NOT use the unit forcooling precision instruments, food, plants, animals, orworks of art.NOTICEFor future modifications or expansions of your system:A full overview of allowable combinations (for futuresystem extensions) is available in technical engineeringdata and should be consulted. Contact your installer toreceive more information and professional advice.4.1 System layout5 User interfaceThis operation manual offers a non-exhaustive overview of the mainfunctions of the system.6 Operation6.1 Operation rangeUse the system in the following temperature and humidity ranges forsafe and effective operation.