User manual TOSHIBA RAS-18UKHP-AS3 SERVICE MANUAL

[. . . ] SVM-04007-(1) SERVICE MANUAL AIR CONDITIONER RAS-24UKHP-ES3 / RAS-24UAH-ES3 RAS-18UKHP-ES3 / RAS-18UAH-ES3 RAS-24UKP-ES3 / RAS-24UA-ES3 RAS-18UKP-ES3 / RAS-18UA-ES3 RAS-24UKHP-AS3 / RAS-24UAH-AS3 RAS-18UKHP-AS3 / RAS-18UAH-AS3 RAS-24UKP-AS3 / RAS-24UA-AS3 RAS-18UKP-AS3 / RAS-18UA-AS3 SPLIT WALL TYPE 18 Class (Heat pump model) 18 Class (Cooling only model) 24 Class May 2004 FILE NO. SPECIFICATIONS CONSTRUCTION VIEWS 2-1 2-2 2-3 2-4 Indoor Unit Outdoor Unit (RAS-24UAH-ES3, RAS-24UA-ES3, RAS-24UAH-AS3, RAS-24UA-AS3) Outdoor Unit (RAS-18UAH-ES3, RAS-18UAH-AS3) Outdoor Unit (RAS-18UA-ES3, RAS-18UA-AS3) RAS-24UKHP-ES3 / RAS-24UAH-ES3, RAS-24UKHP-AS3 / RAS-24UAH-AS3 RAS-18UKHP-ES3 / RAS-18UAH-ES3, RAS-18UKHP-AS3 / RAS-18UAH-AS3 RAS-24UKP-ES3 / RAS-24UA-ES3, RAS-24UKP-AS3 / RAS-24UA-AS3 RAS-18UKP-ES3 / RAS-18UA-ES3, RAS-18UKP-AS3 / RAS-18UA-AS3 Indoor Unit (RAS-24UKHP-ES3, RAS-18UKHP-ES3, RAS-24UKHP-AS3, RAS-18UKHP-AS3) Outdoor Unit (RAS-24UAH-ES3, RAS-24UAH-AS3) Outdoor Unit (RAS-18UAH-ES3, RAS-18UAH-AS3) Indoor Unit (RAS-24UKP-ES3, RAS-18UKP-ES3, RAS-24UKP-AS3, RAS-18UKP-AS3) Outdoor Unit (RAS-24UA-ES3, RAS-24UA-AS3) Outdoor Unit (RAS-18UA-ES3, RAS-18UA-AS3) RAS-24UKHP-ES3 / RAS-24UAH-ES3, RAS-24UKHP-AS3 / RAS-24UAH-AS3 RAS-18UKHP-ES3 / RAS-18UAH-ES3, RAS-18UKHP-AS3 / RAS-18UAH-AS3 RAS-24UKP-ES3 / RAS-24UA-ES3, RAS-24UKP-AS3 / RAS-24UA-AS3 RAS-18UKP-ES3 / RAS-18UA-ES3, RAS-18UKP-AS3 / RAS-18UA-AS3 3. WIRING DIAGRAM 3-1 3-2 3-3 3-4 4. SPECIFICATION OF ELECTRICAL PARTS 4-1 4-2 4-3 4-4 4-5 4-6 5. REFRIGERATION CYCLE DIAGRAM 5-1 5-2 5-3 5-4 6. CONTROL BLOCK DIAGRAM 6-1 RAS-24UKHP-ES3, RAS-18UKHP-ES3, RAS-24UKHP-AS3, RAS-18UKHP-AS3 6-2 RAS-24UKP-ES3, RAS-18UKP-ES3, RAS-24UKP-AS3, RAS-18UKP-AS3 7. OPERATION DESCRIPTION 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 Outline of Air Conditioner Control Description of Operation Circuit Hi POWER Mode High-Temperature Limit Control Low-Temperature Limit Control Defrosting Operation Auto Restart Function Filter Check Lamp Self-Cleaning function Safety Cautions Installation Diagram of Indoor and Outdoor Units Installation Indoor Unit Outdoor Unit Others -1- 8. INSTALLATION PROCEDURE 8-1 8-2 8-3 8-4 8-5 8-6 FILE NO. SVM-04007 9. TROUBLESHOOTING CHART 9-1 9-2 9-3 9-4 9-5 9-6 9-7 9-8 9-9 10-1 10-2 10-3 10-4 11-1 11-2 11-3 11-4 11-5 11-6 Troubleshooting Procedure Basic Check Items Primary Judgement Self-Diagnosis by Remote Control (Check Code) How to Diagnose Faulty Part Troubleshooting for Indoor Unit Troubleshooting for Wiring (Interconnect cable and Serial Signal Wire) Troubleshooting for P. C. Board Troubleshooting for Remote Control Indoor Unit Outdoor Unit (RAS-24UAH-ES3, RAS-24UA-ES3, RAS-24UAH-AS3, RAS-24UA-AS3) Outdoor Unit (RAS-18UAH-ES3, RAS-18UAH-AS3) Outdoor Unit (RAS-18UA-ES3, RAS-18UA-AS3) Indoor Unit (E - Parts Assy) Indoor Unit Outdoor Unit (RAS-24UAH-ES3, RAS-24UAH-AS3) Outdoor Unit (RAS-18UAH-ES3, RAS-18UAH-AS3) Outdoor Unit (RAS-24UA-ES3, RAS-24UA-AS3) Outdoor Unit (RAS-18UA-ES3, RAS-18UA-AS3) 10. [. . . ] 8-5-7 Power supply cord Earth line Connecting cable Fig. 8-5-8 Model Power s ource Maximum running current Plug s o c k e t & f u s e r a t i n g Power cord 24 Class 18 Class 50 Hz, 220 240 V Single phase 18A 20A 16A 20A 2 4 mm (H07R N-F or 245 IE C 66) or 3. 5 mm2 (AWG -12) CAUTION · Wrong wiring connection may cause some electrical parts burn out. · Be sure to comply with local codes on running the wire from indoor unit to outdoor unit (size of wire and wiring method etc). · Every wire must be connected firmly. NOTE: Connecting cable · Wire type: More than 1. 5 mm2 (H07RN-F or 245 IEC66) or 1. 3 mm2 (AWG-16) ­ 44 ­ FILE NO. How to Set Remote Control Selector Switch When two indoor units as installed in seperated rooms, there is no need to change the selector switch. <Remote control selector switch> · When two indoor units are installed in the same room or the adjacent two rooms, they may be controlled simultaneously with a single remote control. To prevent this, set either unit and its remote control to B setting. (Both units are set to A setting before shipment. ) · The remote control signal is not recived when the indoor unit setting is different from the remote control one. Set the remote control selector switch with the indoor unit. 1) Turn the circuit breaker of the main power switch off before setting the selector switch. 2) Remove the Air inlet grille and Front panel. (Refer to page 63, 10-1) 3) Select the terminal of selector switch from [A position] to [B position]. Slector switch 2. Set the remote control selector switch with the remote control [B] is indicated on the liquid crystal display when setting remote control selector switch to B. [A] is not indicated on the display even if the selector switch is set to A. 1) Load the remote control with the batteries. 2) Press the [CHECK] button using something with sharp point. (The preset temperature on the remote control changes to [00]. ) 3) Press the [MODE] button while pressing the [CHECK] button, [B] is indicted at the right of the present temperature display. · To reset the switch to the [A] setting, press the [MODE] button again while pressing the [CHECK] button. A B A B PRESET A B FAN SWING FIX ON START/STOP MODE ECO TIMER AUTO Hi-POWER MEMO SET CLR [MODE] button OFF FILTER RESET CLOCK CHECK Fig. Confirm that the indoor unit can operate with the new setting. ­ 45 ­ FILE NO. Gas leak test Electric parts cover 8-7-3. Auto restart setting This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure. D C Information Flare nut connections (Indoor unit) Valve stem cap connection The product was shipped with Auto Restart function in the off position. [. . . ] 1) Perform the common procedure 1 2) Remove the fixing screw. (2 screw 4 x 10L) 3) Disconnect the lead wires from the relay terminal. 1) Perform the common procedure 1 2) Remove the fixing screw. (1 screw 4 x 10L) 3) Disconnect the lead wires from the terminal. Running capacitor for compress or 3 Running capacitor for fan motor Running capacitor for fan motor Spark killer 4 Magnetic contactor 5 Spark killer Magnetic contactor - 72 - FILE NO. [. . . ]