Daikin BEVN32AV1 Installation Manual

Contents

English 32. BEFORE INSTALLATION2-1 ABOUT THIS PRODUCT1. This product uses R744 (CO 2 ) refrigerant.The utmost attention is required to handle R744 refrigerant, and strict measures must be taken to keepimpurities (including mineral oil and other types of oil as well as moisture) out of the system. Be sure tofollow the instructions in “7. REFRIGERANT PIPING WORK”.2. The design pressure is 12.3 MPa (4.0 MPa for R410A). Therefore, the following conventional parts cannotbe used.• Connection pipesThick-walled pipes are required. Refer to “7. REFRIGERANT PIPING WORK” for the specifications ofthe pipes.• Flare nut connectionsUnavailable. Perform brazing connections.• Pipe brazing jointsPipes with a maximum diameter of 12.7mm .... Make brazing connections with sleeve flare processing.Pipes with a diameter of 15.9mm ..................... Use sockets sold as optional accessories.• ElbowsUse products sold as optional accessories.• Installation instruments that must withstand high pressures, such as charge hoses and pressure gaugesUse pressure-resistant instruments that withstand a minimum pressure of 12.3 MPa.3. The indoor unit is an R744-dedicated unit. The following indoor unit models are connectable.(Do not connect other indoor unit models, or otherwise an inner piping rupture will result.)2-2 COMBINATIONAttach a BEV unit to the indoor unit. As shown in the below table.2-3 ACCESSORIESCheck if the following accessories are included with your unit.BEV unit BEVN32AV1 BEVN50AV1 BEVN125AV1Indoor unitFXSN20AV1FXSN25AV1FXSN32AV1FXSN40AV1FXSN50AV1FXSN63AV1FXSN100AV1Name Clamp (3) Insulation for fitting (4) Installation manualQuantity 10 pcs. 2 pcs. 1 pc.Shape(1) 6 short pieces(2) 4 long piecesFor liquid piping × 2(I. D. φ35)(5) Caution label1 pc.Attach this to the EL. COMPO. BOXlid of the indoor unit after installation.