Daikin RWEYQ72PTJU Installation Manual

Also see for RWEYQ144PTJU: Engineeiring data Engineering data Service manual

Contents

RWEYQ72PTJU RWEYQ168PTJURWEYQ84PTJU RWEYQ216PTJURWEYQ144PTJU RWEYQ252PTJU VRV-WIII System air conditioner Installation manual1 EnglishCONTENTS1. SAFETY CONSIDERATIONS...................................................... 12. INTRODUCTION.......................................................................... 32-1. Combination .......................................................................... 32-2. Standard operation limit ........................................................ 32-3. Standard supplied accessories ............................................. 32-4. Option accessory .................................................................. 32-5. Technical specifications (1)................................................... 42-6. Electrical specifications ......................................................... 43. SELECTION OF LOCATION ....................................................... 54. INSPECTING AND HANDLING THE UNIT ................................. 55. UNPACKING AND PLACING THE UNIT..................................... 56. WATER PIPING WORK............................................................... 67. HANDLING OF THE BRAZED PLATE TYPE HEATEXCHANGER .............................................................................. 67-1. When designing the equipment ............................................ 67-2. Before starting a test run....................................................... 67-3. Daily service and maintenance ............................................. 77-4. Water quality ......................................................................... 77-5. Maintenance of plate type heat exchanger ........................... 78. FIELD WIRING............................................................................. 88-1. Optional parts........................................................................ 88-2. Power circuit and cable requirements ................................... 88-3. General ................................................................................. 88-4. Examples .............................................................................. 88-5. In case of a local setting ..................................................... 109. REFRIGERANT PIPING ............................................................ 119-1. Selection of piping material ................................................. 119-2. Protection against contamination when installing pipes ........ 119-3. Pipe connection .................................................................. 119-4. Connecting the refrigerant piping ........................................ 129-5. Example of connection........................................................ 139-6. Air tight test and vacuum drying.......................................... 149-7. Pipe insulation..................................................................... 149-8. Checking of device and installation conditions.................... 149-9. Additional refrigerant charge ............................................... 149-10.Stop valve operation procedure ......................................... 1510. CHECKS AFTER INSTALLATION............................................. 1611. TEST RUN ................................................................................. 1611-1.Air discharge ...................................................................... 1611-2.Before turn on the power supply ........................................ 1611-3.Check operation................................................................. 1611-4.Check of normal operation................................................. 1712. CAUTION FOR REFRIGERANT LEAKS ................................... 171. SAFETY CONSIDERATIONSRead these SAFETY CONSIDERATIONS for Installation carefullybefore installing air conditioning equipment. After completing the instal-lation, make sure that the unit operates properly during the startup oper-ation.Instruct the customer on how to operate and maintain the unit. Informcustomers that they should store this Installation Manual with the Oper-ation Manual for future reference.Always use a licensed installer or contractor to install this product.Improper installation can result in water or refrigerant leakage, electricalshock, fire, or explosion.Meanings of DANGER, WARNING, CAUTION, and NOTE Symbols:DANGER .................... Indicates an imminently hazardous situa-tion which, if not avoided, will result indeath or serious injury.WARNING................... Indicates a potentially hazardous situationwhich, if not avoided, could result in deathor serious injury.CAUTION ....................Indicates a potentially hazardous situationwhich, if not avoided, may result in minor ormoderate injury. It may also be used toalert against unsafe practices.NOTE...........................Indicates situations that may result inequipment or property-damage accidentsonly.DANGER• Refrigerant gas is heavier than air and replaces oxygen. Amassive leak can lead to oxygen depletion, especially in base-ments, and an asphyxiation hazard could occur leading to se-rious injury or death.• Do not ground units to water pipes, gas pipes, telephonewires, or lightning rods as incomplete grounding can cause asevere shock hazard resulting in severe injury or death. Addi-tionally, grounding to gas pipes could cause a gas leak andpotential explosion causing severe injury or death.• If refrigerant gas leaks during installation, ventilate the areaimmediately. Refrigerant gas may produce toxic gas if itcomes in contact with fire. Exposure to this gas could causesevere injury or death.• After completing the installation work, check that the refriger-ant gas does not leak throughout the system.• Do not install unit in an area where flammable materials arepresent due to risk of explosions that can cause serious injuryor death.• Safely dispose all packing and transportation materials in ac-cordance with federal/state/local laws or ordinances. Packingmaterials such as nails and other metal or wood parts, includ-ing plastic packing materials used for transportation maycause injuries or death by suffocation.WARNING• Only qualified personnel must carry out the installation work.Installation must be done in accordance with this installationmanual. Improper installation may result in water leakage,electric shock, or fire.• When installing the unit in a small room, take measures to keepthe refrigerant concentration from exceeding allowable safetylimits. Excessive refrigerant leaks, in the event of an accident ina closed ambient space, can lead to oxygen deficiency.• Use only specified accessories and parts for installation work.Failure to use specified parts may result in water leakage,electric shocks, fire, or the unit falling.• Install the air conditioner on a foundation strong enough that itcan withstand the weight of the unit. A foundation of insuffi-cient strength may result in the unit falling and causing injuries.• Take into account strong winds, typhoons, or earthquakeswhen installing. Improper installation may result in the unitfalling and causing accidents.• Make sure that a separate power supply circuit is provided forthis unit and that all electrical work is carried out by qualifiedpersonnel according to local state, and national regulations.An insufficient power supply capacity or improper electricalconstruction may lead to electric shocks or fire.• Make sure that all wiring is secured, that specified wires areused, and that no external forces act on the terminal connec-tions or wires. Improper connections or installation may re-sult in fire.