Daikin LREQ5B7Y1 Installation Manual

Also see for LREQ10B7Y1: Installation manual Operation manual

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Daikin LREQ5B7Y1 Installation Manual Manual pdf 5 page image

LREQ5~20B7Y1Air cooled refrigeration condensing unit4PW74302-1 – 2012.06Installation manual2CAUTION• Carry out drain piping properly following this installation manualand insulate the pipe to prevent condensation.Improper drain piping may result in indoor water leakage andproperty damage.• Install the indoor and outdoor units, power cord and connectingwires at least 1 meter away from televisions or radios to preventpicture interference and noise.(Depending on the incoming signal strength, a distance of 1 metermay not be sufficient to eliminate noise.)• Do not install the condensing unit in the following locations:1. Where there is a high concentration of mineral oil spray orvapour (e.g. a kitchen).Plastic parts may deteriorate and cause parts to fall off or waterto leak.2. Where corrosive gas, such as sulphurous acid gas, is produced.Corrosion of copper pipes or brazed parts may occur and causerefrigerant leakage.3. Where there is a machine that generates electromagnetic waveand where voltage fluctuation often occurs such as a factory.Control system may malfunction and as a result the unit maynot properly operate.4. Where flammable gas may leak, where carbon fibre or ignitabledust is suspensions in the air, or where volatile flammablessuch as paint thinner or gasoline are handled.Operating the unit in such conditions may result in fire.5. Vehicles, ships, or other places that generate vibration or causethe condensing unit to move.The condensing unit may malfunction or cause oxygendeficiency accidents as a result of refrigerant leakage.6. Places with excessive voltage fluctuations.The condensing unit may malfunction.7. Places where fallen leaves accumulate or weeds grow thick.8. Places that become small animals’ shelter.Small animals coming in contact with electrical parts can causemalfunctions, smoke, or ignition.• The condensing unit is not intended for use in a potentiallyexplosive atmosphere.1-2 Special notice of productThis condensing unit comes under the term “appliances notaccessible to the general public”.[CLASSIFICATION]This condensing unit comes under the term “appliances notaccessible to the general public”.Refer to the connected indoor unit to know the climate class(EN60335-2-89).[EMC CHARACTERISTICS]This system is a class A product. In a domestic environment thisproduct may cause radio interference in which case the user may berequired to take adequate measures.[REFRIGERANT]This System use R410A refrigerant.CAUTIONThis unit is already filled with a certain amount of R410A.Never open liquid and gas shutoff valve until the step specified in"9. CHECKS AFTER WORK COMPLETION" on page 15.• The refrigerant R410A requires that strict precautions be observedfor keeping the system clean, dry and tightly sealed.Read the chapter "6. REFRIGERANT PIPING" on page 5 carefullyand follow these procedures correctly.A.Clean and dryStrict measures must be taken to keep impurities (includingSUNISO oil and other mineral oils as well as moisture) out of thesystem.B.Tightly sealedTake care to keep the system tight when installing.R410A contains no chlorine, does not destroy the ozone layerand so does not reduce the earth’s protection against harmfulultraviolet radiation. R410A will contribute only slightly to thegreenhouse effect if released into the atmosphere.• Since R410A is a mixed refrigerant, the required additionalrefrigerant must be charged in its liquid state. If the refrigerant ischarged in a state of gas, its composition changes and the systemwill not work properly.• Be sure to perform refrigerant replenishment.Refer to "9. CHECKS AFTER WORK COMPLETION" on page 15and the label of instructions on refrigerant replenishment on thecover surface of the control box,Important information regarding the refrigerant usedThis product contains fluorinated greenhouse gases covered by theKyoto Protocol. Do not vent gases into the atmosphere.Refrigerant type : R410AGWP (1) value : 1975(1) GWP = global warming potentialPlease fill in with indelible ink, the factory refrigerant charge of the product, the additional refrigerant amount charged in the field and + the total refrigerant chargeon the refrigerant charge label supplied with the product.The filled out label must be adhered in the proximity of the productcharging port (e.g. onto the inside of the service cover).[DESIGN PRESSURE]Since design pressure is 3.8 MPa or 38 bar (for R407C units :3.3 MPa or 33 bar), the wall thickness of pipes should be morecarefully selected in accordance with the relevant local and nationalregulations.1-3 Disposal requirementsDismantling of the unit, treatment of the refrigerant, of oil and of otherparts must be done in accordance with relevant local and nationallegislation.2. BEFORE INSTALLATIONCAUTION• When installing the indoor unit, refer to the installation manualprovided for the indoor unit.• Optional accessories are required for the installation of theproduct. Refer to the information on optional accessory.2-1 Standard supplied accessoriesThe following accessories are included. The storage location of theaccessories is shown in the figure.NoteDo not throw away any of the accessories until installation is complete.Name Clamp (1) Clamp (2)Gas sideaccessorypipe (1)Gas sideaccessorypipe (2)Quantity 9 pcs. 2 pcs. 1 pc. 1 pc.ShapeSmall356214 1 factory refrigerant chargeof the product : see unitname plate2 additional refrigerantamount charged in the field3 total refrigerant charge4 Contains fluorinatedgreenhouse gases coveredby the Kyoto Protocol5 outdoor unit6 refrigerant cylinder andmanifold for charging