User manual TOSHIBA RAS-10UKP-E3 SERVICE MANUAL

[. . . ] SVM-04050 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS-07UKHP-E3 / RAS-07UAH-E3-1 RAS-10UKP-E3 / RAS-10UA-E3-1 RAS-07UKP-E3 / RAS-07UA-E3-1 RAS-10UKPX3 / RAS-10UAX3-1 RAS-07UKPX3 / RAS-07UAX3-1 Septembet 2004 FILE NO. SPECIFICATIONS CONSTRUCTION VIEWS 2-1 2-2 2-3 Indoor Unit Outdoor Unit (RAS-10UA-E3-1, RAS-10UAX3-1) Outdoor Unit (RAS-07UAH-E3-1, RAS-07UA-E3-1, RAS-07UAX3-1) RAS-10UKP-E3 / RAS-10UA-E3-1 RAS-10UKPX3 / RAS-10UAX3-1 RAS-07UKHP-E3 / RAS-07UAH-E3-1 RAS-07UKP-E3 / RAS-07UA-E3-1 RAS-07UKPX3 / RAS-07UAX3-1 Indoor Unit (RAS-07UKHP-E3) Outdoor Unit (RAS-07UAH-E3-1) Indoor Unit (RAS-10UKP-E3, RAS-07UKP-E3, RAS-10UKPX3, RAS-07UKPX3) Outdoor Unit (RAS-10UA-E3-1, RAS-10UAX3-1) Outdoor Unit (RAS-07UAX3-1, RAS-07UA-E3-1) RAS-10UKP-E3 / RAS-10UA-E3-1 RAS-10UKPX3 / RAS-10UAX3-1 RAS-07UKHP-E3 / RAS-07UAH-E3-1 RAS-07UKP-E3 / RAS-07UA-E3-1 RAS-07UKPX3 / RAS-07UAX3-1 RAS-07UKHP-E3 / RAS-07UAH-E3-1 RAS-10UKP-E3 / RAS-10UA-E3-1, RAS-07UKP-E3 / RAS-07UA-E3-1 RAS-10UKPX3 / RAS010UAX3-1, RAS-07UKPX3 / RAS-07UAX3-1 Outline of Air Conditioner Control Description of Operation Circuit Hi POWER Mode High-Temperature Limit Control Low-Temperature Limit Control Defrost Operation Current Limit Control Auto Restart Function Filter Check Lamp Self-Cleaning function 3. WIRING DIAGRAM 3-1 3-2 3-3 4. SPECIFICATION OF ELECTRICAL PARTS 4-1 4-2 4-3 4-4 4-5 5. REFRIGERATION CYCLE DIAGRAM 5-1 5-2 5-3 6. CONTROL BLOCK DIAGRAM 6-1 6-2 7. OPERATION DESCRIPTION 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 7-10 -1- FILE NO. INSTALLATION PROCEDURE 8-1 8-2 8-3 8-4 8-5 8-6 8-7 Safety Cautions Installation Diagram of Indoor and Outdoor Units Installation Indoor Unit Outdoor Unit How to Set Remote Control Selector Switch Others Troubleshooting Procedure Basic Check Items Primary Judgement Self-Diagnosis by Remote Control (Check Code) Troubleshooting Flowcharts Troubleshooting for Remote Control 9. TROUBLESHOOTING CHART 9-1 9-2 9-3 9-4 9-5 9-6 10. PART REPLACEMENT 10-1 Indoor Unit 10-2 Outdoor Unit 11. [. . . ] 8-5-4 <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. Mark line CAUTION · Do not apply excess torque. · Otherwise, the nut may crack depending on the conditions. Half union Fig. 8-5-5 Flare nut Externally threaded side Internally threaded side Use a wrench to secure. Use a torque wrench to tighten. Fig. 8-5-6 CAUTION · KEEP IMPORTANT 4 POINTS FOR PIPING WORK (1) Take away dust and moisture (Inside of the connecting pipes. ) (2) Tight connection (between pipes and unit) (3) Evacuate the air in the connecting pipes using VACUUM PUMP. (4) Check gas leak (connected points) - 40 - FILE NO. Evacuating After the piping has been connected to the indoor unit, you can perform the air purge together at once. AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump. Do not use the refrigerant in the outdoor unit. For details, see the manual of the vacuum pump. <Using a vacuum pump> Be sure to use a vacuum pump with counter-flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops. Connect the charge hose from the manifold valve to the service port of the gas side packed valve. Connect the charge hose to the port of the vacuum pump. Open fully the low pressure side handle of the gauge manifold valve. Operate the vacuum pump to start evacuating. Perform evacuating for about 15 minutes if the piping length is 20 meters. (15 minutes for 20 meters) (assuming a pump capacity of 27 liters per minute. ) Then confirm that the compound pressure gauge reading is -101 kPa (-76 cmHg). Close the low pressure side valve handle of gauge manifold. Open fully the valve stem of the packed valves (both sides of Gas and Liquid). Remove the charging hose from the service port. Securely tighten the caps on the packed valves. Compound pressure gauge -101 kPa ( -76 cmHg) Manifold valve Handle Lo Charge hose Connecting pipe Vacuum pump adapter for counter-flow prevention Vacuum pump <Packed valve handling precautions> · · Open the valve stem all the way out; but do not try to open it beyond the stopper. Securely tighten the valve stem cap with torque in the following table: Gas side ( Æ12. 70 mm) Gas side (Æ9. 52 mm) Liquid side (Æ6. 35 mm) Service port 50 to 62 Nám (5. 0 to 6. 2 kgfám) 30 to 42 Nám (3. 0 to 4. 2 kgfám) 16 to 18 Nám (1. 6 to 1. 8 kgfám) 9 to 10 Nám (0. 9 to 1. 0 kgfám) Hexagonal wrench is required. 4m m Fig. [. . . ] (3-Screws 4 x 10L) 3-Screws Ø4 x10L 3) Remove the cord clamp (2-Screws 4 x 22L) and disconnect the connecting cable. 4) Remove the upper cabinet (4-Screws 4 x 10L) Pulling out upword. (3-Screws 4 x 10L) Pull the front right portion toward you, and Packed valve cover remove it pulling out upward. Upper cabinet Front cabinet - 64 - FILE NO. [. . . ]