Mode d'emploi TOSHIBA RAS-3M18S3AV-E

[. . . ] SVM-15102 SERVICE MANUAL AIR-CONDITIONER SPLIT TYPE RAS-3M18S3AV-E, -TR RAS-2M18S3AV-E, -TR, -A RAS-2M14S3AV-E, -TR R410A October, 2015 Downloaded from www. Manualslib. com manuals search engine FILE NO. SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT R410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] • Pull the valve cover in the direction of the arrow, and remove it. ■ Air Purge From the sake of environmental protection, use a vacuum pump to extract the air during installation. • Make sure that the Handle Hi of the gauge manifold valve is closed fully. • Connect the port of the gauge manifold valve and the service port (Valve core (Setting Pin)) using the charge hose. NOTE If a control valve or charge valve is attached to the charge hose, leak of R410A refrigerant can be avoided. Open the Handle Low of the gauge manifold valve fully, then operate the vacuum pump. • Loosen the flare nut of the at the gas end a little to make sure that air is taken in, then tighten the nut. • If you find air is not taken in, make sure that the charge hose is connected to the port(s) securely. • Perform extraction for about 15 or more minutes and make sure that the compound pressure gauge reading is –101 kPa (–76 cmHg). • If the compound pressure gauge reading is not –101 kPa (–76 cmHg), there is a possibility air is being taken in from the port(s). • Make sure that the charge hose is connected to the port(s) securely. Close the Handle Low of the gauge manifold valve fully, then stop operating the vacuum pump. • Leave the gauge and pump as they are for 1 or 2 minutes, then make sure that the compound pressure gauge reading stays at –101 kPa (–76 cmHg). Disconnect the charge hose from the service port, then open the valve stem fully using a 4 mm hexagon wrench. Warp Hexagon wrench is required. Service port cap Valve cover ■ Refrigerant Piping Connection Flaring 1. Cut the pipe with a pipe cutter. 90° Obliquity Roughness 2. When removing the burr, be careful so that chips do not fall into the pipe. Remove the flare nuts attached to the outdoor/indoor unit, then insert them into each of the pipes. See the following table for the projection margin (A) and flaring size (B). B A Die Pipe m 4m Valve stem cap 5. Tighten the service valve stem cap and service port cap securely. CAUTION Use a torque wrench and tighten the nut at the specified torque value. 6. Tighten all the caps on the valves securely, then perform a gas leak inspection. Service valve N•m 14 to 18 33 to 42 50 to 62 kgf•m 1. 4 to 1. 8 3. 3 to 4. 2 5. 0 to 6. 2 Type Liquid side Gas side mm 6. 35 9. 52 12. 7 Tighten torque Valve stem cap N•m 14 to 18 14 to 18 33 to 42 kgf•m 1. 4 to 1. 8 1. 4 to 1. 8 3. 3 to 4. 2 Service port cap N•m — 14 to 18 14 to 18 kgf•m — 1. 4 to 1. 8 1. 4 to 1. 8 Pipe Outside Thickness diameter mm 6. 35 9. 52 12. 7 mm 0. 8 0. 8 0. 8 Rigid (clutch type) R410A tool mm 0 to 0. 5 0 to 0. 5 0 to 0. 5 A Imperial (wing nut type) R410A tool mm 1. 5 to 2. 0 1. 5 to 2. 0 2. 0 to 2. 5 B Flare Nut Width across flat Tighten torque mm 9. 1 13. 2 16. 6 mm 17 22 26 Compound pressure gauge –101 kPa (–76 cmHg) Handle Low Charge hose (For R410A only) Pressure gauge Handle Hi (Keep full closed) Manifold valve Charge hose (For R410A only) Service valve at the liquid side Service valve at the gas side Service port (Valve core (Setting pin)) Vacuum pump adapter for counterflow preventation (For R410A only) Vacuum pump Pipe connection 1. Make wire and pipe connections for each indoor unit separately. [. . . ] After replacing the parts, check whether the positions where the sensors were installed are the proper positions as instructed. The product will not be controlled properly and trouble will result if the sensors have not been installed in their proper positions. - 107 Downloaded from www. Manualslib. com manuals search engine FILE NO. Part name Procedure ⑮ High pressure 1. Detachment switch 1) Perform work of ①. 2) Recover the refrigerant gas form the outdoor unit. [. . . ]