User manual TOSHIBA RAS-09EKH SERVICE MANUAL

[. . . ] SPECIFICATIONS OF ELECTRICAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT CYCLE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONTROL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OPERATION DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Refrigerant Piping Connection <Flaring> (1) Cut the pipe with a pipe cutter. 8-5-2. Vacuum Pumping INFORMATION In order to prevent any other refrigerant from being charged accidentally, each port of the manifold has been changed in shape. 90° Obliquity Roughness Warp Differences in Port Size between Conventional R22 and R410A Fig. 8-5-2 (2) Insert a flare nut into the pipe, and flare the pipe. Outer dia. 6, 35mm Die Pipe Manifold for R22 Port size 7/16 UNF 20 threads per inch Manifold for R410A 1/2 UNF 20 threads per inch A (mm) R22/R410A Imperial 1, 0 ~ 1, 5/ 1, 5 ~ 2, 0 1, 0 ~ 1, 5/ 1, 5 ~ 2, 0 Rigid 0, 5 ~ 1, 0/ 1, 0 ~ 1, 5 0, 5 ~ 1, 0/ 1, 0 ~ 1, 5 A AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump. Do not use the refrigerant in the outdoor unit. For details, see the manual of vacuum pump. Fig. 8-5-3 9, 52mm <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. <Use of vacuum pump> (1) Connect the charge hose (A) from the manifold valve to the charge inlet of the gas side packed valve. (2) Connect the charge hose (B) to the port of vacuum pump. (3) Open fully the low pressure side handle of the manifold valve. (5) Close the low pressure side handle of manifold valve after vacuumizing and stop the vacuum pump. Auto Restart Function Electric parts cover Valve stem cap connection A B Service port Valve stem cap connection Flare nut connections (Outdoor unit) Fig. 8-6-1 · Check the flare nut connections, valve stem cap connections and service cap connections for gas leak with a leak detector or soap water. 8-6-2. Test Operation To switch the TEST RUN (COOL) mode, push TEMPORARY button for 10 sec. (The beeper will make a short beep. ) TEMPORARY button TEMPORARY Fig. TROUBLESHOOTING CHART TROUBLESHOOTING PROCEDURES : · Following details of "What to be pre-checked first", make sure of the basic items. · When there is no trouble corresponding to above, check in detail the faulty parts following "How to judge faulty parts by symptoms" later. 9-1. Power Supply Voltage The line voltage must be AC 220­240V (220V for RAS-07YKX-T, RAS-10YKX-T). If the line voltage is not within this range, this air conditioner may not work normally. 9-1-2. Incorrect Cable Connection between Indoor and Outdoor Units The indoor unit is connected to the outdoor unit with 3 cables. Make certain that the indoor and outdoor units have been connected properly, with terminals assigned the same numbers wired to each other. If the connectors are not connected as specified, the outdoor unit will not operate normally. 9-1-3. [. . . ] MCC-798 (07YKX, 07YKX-T) 408 408 412 413 43T69054 P Board Assembly, . C. MCC-798 (10YKX, 10YKX-T, 10YK-HX, 11YKX) 43T60042 Cord, Power (without plug) 43T60303 Cord, Power (with plug) (10YK-HX only) 43T69031 P Board Assembly, . C. WRS-LED, MCC-766 43T61001 Base, E-Parts ABS, Black, UL94-5V ­ 51 ­ 11-1. Indoor Unit (2) RAS-07YK-E, RAS-10YK-E, RAS-10YK-ES 240 230 228 233 231 222 229 221 215 211 201 202 214 210 216 217 223 220 224 218 219 213 238 235 236 239 241 227 225 242 226 232 206 207 212 209 208 203 204 Location No. [. . . ]