User manual TOSHIBA RAS-09EK SERVICE MANUAL

[. . . ] SPECIFICATIONS OF ELECTRICAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT CYCLE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONTROL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OPERATION DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] When the panel is removed and mounted again, take the following actions: After fastening the two screws, one each at the left and right of the air outlet, be sure to push the upper center Q right end R , left end S and the lower center T of the air outlet, and confirm that no gap is left between the front cabinet and the rear plate. · If cooling (dry) operation is made without pushing the air outlet, dew can be deposited on the front cabinet surface. In addition a gap between the front cabinet and the rear plate will become wider, spoiling the appearance. Push 3 Push 1 Push 2 4 CAUTION · Be sure to refer the wiring system diagram labeled inside the front panel. · Check local electrical codes and also any specific wiring instructions or limitation. Connecting cable Terminal block Cord Terminal clamp cover Screw 12 Push Fig. Piping and Drain Hose Installation <In case of rightward piping> · After scribing slits of the front panel and the rear panel by a knife or a marking-off pin, cut them by a pair of nippers or the like. Earth line Slit (front panel) about 15cm Screw Screw Connecting cable Slit (rear panel) Fig. 8-4-12 <In case of downward piping> · After scribing the slit of the front panel and slit in the lower part of the rear panel by a knife or a marking-off pin, cut them by a pair of nippers or the like. <Stripping length of connecting cable> 50mm 10mm 4 3 2 1 Earth line 10mm 40mm For a five conductor cable NOTE : · Use stranded wire only. 8-4-13 ­ 38 ­ <Left-hand connection with piping> Bend the connecting pipe so that it is laid within 43 mm above the wall surface. If the connecting pipe is laid exceeding 43 mm above the wall surface, the indoor unit may unstably be set on the wall. When bending the connecting pipe, make sure to use spring bender so as not to crush the pipe. To connect pipe after installation of unit (figure) (To the forefront of flare) 196mm 96mm 8-4-5. Indoor Unit Installation (1) Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks. This air conditioner has the structure designed to drain water collected from dew, which forms on the back of the indoor unit, to the drain pan. Therefore, do not store the power cord and other parts at a height above the drain guide. Wall Drain guide Strong wind Fig. Refrigerant Piping Connection CAUTION Installation in the following places may result in trouble. · A place where high-frequency waves are likely to be generated as from radio equipment, welders, and medical equipment. <Flaring> (1) Cut the pipe with a pipe cutter. 90° Obliquity Roughness Warp Fig. 8-5-2 (2) Insert a flare nut into the pipe, and flare the pipe. 8-5-1. Required Tools for Installation Work 1) Philips screw driver 2) Hole core drill (65mm) 3) Gaugramanifold 4) Spanner 5) Pipe cutter 6) Knife 7) Reamer 8) Gas leak detector 9) Tape measure 10) Thermometer 11) Mega-tester 12) Electro circuit tester 13) Vacuum pump 14) Hexagonal wrench (5mm) 15) Torque wrench Outer dia. 6, 35mm 9, 52mm 12, 7mm A (mm) R22 Imperial 1, 0 ~ 1, 5 1, 0 ~ 1, 5 1, 5 ~ 2, 0 Rigid 0, 5 ~ 1, 0 0, 5 ~ 1, 0 0, 5 ~ 1, 1 A (mm) R410A Imperial 1, 5 ~ 2, 0 1, 5 ~ 2, 0 Rigid 1, 0 ~ 1, 5 1, 0 ~ 1, 5 A Die Pipe Fig. 8-5-3 <Tightening connection> Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure. CAUTION · Do not apply excess torque. Otherwise, the nut may crack depending on the installation conditions. Tightening touque N·m (kgf·m) 16 ~ 18 (1, 6 ~ 1, 8) 30 ~ 42 (3, 0 ~ 4, 2) 50 ~ 62 (5, 0 ~ 6, 2) Flare nut Outer dia. 6, 35mm 9, 52mm 12, 7mm Half union or packed valve Externally threaded side Use a wrench to secure. Internally threaded side Use a torque wrench to tighten. Fig. [. . . ] (1- ST1T Ø4 x 10 l) 3) Remove the cord clamp (2- ST2T Ø4 x 12 l) and remove the connecting cable. (7- ST1T Ø4 x 10 l with nylon washer) · Pull the front lower portion toward you, and remove it pulling out upward. 2-ST2T 4 ´12 Remarks Q Remove 7-ST1T 4 ´10 1-ST1T 4 ´10 R Capacitor for compressor 1) Remove the fixing screw the capacitor band. (1- ST2T Ø4 x 8 l) 2) Remove the cable connected to the terminal. Refer to [Specifications of Electrical Parts] in page 11. S Capacitor for fan motor 1) Remove the fixing screw of the capacitor band. (1- ST2T Ø4 x 8 l) 2) Remove the cable connected to the terminal. Same as above. T Overload relay 1) Perform the process Q above. 2) Remove terminal cover of compressor. [. . . ]