RZQG71~140L + RZQSG100~140LSplit system air conditioners4P339538-1A – 2014.03Installation manual2Service company:Qualified company which can perform or coordinate the requiredservice to the unit.Applicable legislation:All international, European, national and local directives, laws,regulations and/or codes which are relevant and applicable for acertain product or domain.Accessories:Equipment which is delivered with the unit and which needs to beinstalled according to instructions in the documentation.Optional equipment:Equipment which can optionally be combined to the products as perthe subject of this manual.Field supply:Equipment which needs to be installed according to instructions inthis manual, but which are not supplied by Daikin.2. Safety considerationsThe precautions here, all cover very important topics, so be sure tofollow them carefully.All activities described in this manual shall be carried out by aninstaller.Be sure to wear adequate personal protection equipment (protectiongloves, safety glasses, …) when performing installation,maintenance or service to the unit.If not sure of installation procedures or operation of the unit, alwayscontact your local dealer for advice and information.Improper installation or attachment of equipment or accessoriescould result in electric shock, short-circuit, leaks, fire or other damageto the equipment. Be sure only to use accessories, optionalequipment and spare parts made by Daikin which are speciallydesigned for use with the products as of subject in this manual andhave them installed by an installer.Warning Ask your dealer or qualified personnel to carry out installationwork. Do not install the machine by yourself.Improper installation may result in water leakage, electric shocksor fire. Perform installation work in accordance with this installationmanual.Improper installation may lead to water leakage, electric shocksor fire. The equipment is not intended for use in a potentially explosiveatmosphere. For RZQG units onlyFor year round cooling applications with low indoor humidityconditions, such as Electronic Data Processing rooms, contactyour dealer or see the engineering databook or the servicemanual. Consult your local dealer regarding what to do in case ofrefrigerant leakage. When the unit is to be installed in a smallroom, it is necessary to take proper measures so that theamount of any leaked refrigerant does not exceed theconcentration limit in the event of a leakage. Otherwise, this maylead to an accident due to oxygen depletion. Be sure to use only the specified accessories and parts forinstallation work.Failure to use the specified parts may result in water leakage,electric shocks, fire, or the unit falling. Install the unit on a foundation that can withstand its weight.Insufficient strength may result in the fall of equipment andcausing injury. Carry out the specified installation work in consideration ofstrong winds, typhoons, or earthquakes.Improper installation work may result in accidents due to fall ofequipment. Make sure that all electrical work is carried out by qualifiedpersonnel according to the applicable legislation and thisinstallation manual, using a separate circuit.Insufficient capacity of the power supply circuit or improperelectrical construction may lead to electric shocks or fire. Make sure that all wiring is secure, using the specified wires andensuring that external forces do not act on the terminalconnections or wires.Incomplete connection or fixing may cause a fire. When wiring between the indoor and outdoor units, and wiringthe power supply, form the wires so that the frontside panel canbe securely fastened.If the frontside panel is not in place, overheating of the terminals,electric shocks or a fire may be caused. If refrigerant gas leaks during installation work, ventilate the areaimmediately.Toxic gas may be produced if refrigerant gas comes into contactwith fire. After completing the installation work, check to make sure thatthere is no leakage of refrigerant gas.Toxic gas may be produced if refrigerant gas leaks into the roomand comes into contact with a source of fire, such as a fanheater, stove or cooker. When planning to relocate former installed units, you must firstrecover the refrigerant after the pump down operation. Refer tochapter "13. Pump down operation" on page 15. Never directly touch any accidental leaking refrigerant. Thiscould result in severe wounds caused by frostbite. Be sure to install an earth leakage circuit breaker in accordancewith applicable legislation. Failure to do so may cause electricalshock and fire.DANGER: ELECTRICAL SHOCKSwitch off all power supply before removing the switchboxservice panel or before making any connections ortouching electrical parts.To avoid electric shock, be sure to disconnect the powersupply 1 minute or more before servicing the electricalparts. Even after 1 minute, always measure the voltage atthe terminals of main circuit capacitors or electrical partsand, before touching, be sure that those voltages are50 V DC or less.When service panels are removed, live parts can easily betouched by accident. Never leave the unit unattendedduring installation or servicing when the service panel isremoved.DANGER: DO NOT TOUCH PIPING AND INTERNALPARTSDo not touch the refrigerant piping, water piping or internalparts during and immediately after operation. The pipingand internal parts may be hot or cold depending on theworking condition of the unit.Your hand may suffer burns or frostbite if you touch thepiping or internal parts. To avoid injury, give the piping andinternal parts time to return to normal temperature or, if youmust touch them, be sure to wear protective gloves.