Mitsubishi Electronics MS-GD08ND-ci manual

1 SER VICE MANUAL CONTENTS 1. TECHNICAL CHANGES ................................... 2 2. P ART NAMES AND FUNCTIONS ..................... 3 3. SPECIFICA TION ................................................ 4 4. OUTLINES AND DIMENSIONS ........................ 5 5. WIRING DIAGRAM ............................................ 6 6. REFRIGERANT SYSTEM D[...]

2 1 TECHNICAL CHANGES MS-A08ND- C1 ➔ MS-GD08ND- C1 MS-A12ND- C1 ➔ MS-GD12ND- C1 1. Indoor unit has been changed. • Front panel has been changed. (Flat Flat Shining) 2. T erminal block has been changed. 3P (L~, N~, 2~) 4P (L~, N~, 2~, Earth) MS-A10ND- C1 ➔ MS-GD10ND- C1 1. Indoor unit has been changed. • Front panel has been changed. (Flat[...]

3 2 ACCESSORIES P ART NAMES AND FUNCTIONS INDOOR UNIT MS-GD08ND- C1 MS-GD10ND- C1 MS-GD12ND- C1 Emergency operation switch Fan Air outlet V ertical vanes Air inlet Remote control receiving section Display section Air cleaning filter (white bellows type) Catechin air filter (with deodorizing) Front panel Panel Horizontal vane Operation section (When[...]

4 SPECIFICA TION 3 REMOTE CONTROLLER ON/OFF RESET TOO WARM TOO COOL ECONO COOL POWERFUL COOL SELECT FAN VANE TIME MODE I FEEL COOL DRY FAN h Signal transmitting section Operation display section TEMPERA TURE buttons V ANE CONTROL button TIME SET button RESET button ECONO COOL button POWERFUL COOL button OPERA TION SELECT button TIMER MODE SELECT bu[...]

5 [ 9.52-0.43m 244 242 5 e r o m r o 7 90 110 0 3 149 606 8 7 2 60 815 783 Air out Installation plate Insulation [ 28 Drain hose [ 16 (Connected part O.D) Liquid line [ 6.35-0.5m Gas line [ 9.52-0.43m Insulation [ 37 O.D [ 21 I.D { Wireless remote controller 81.5 81.5 1 4 5 . 2 2 4 1 7 2 5 . 1 3 2 5 . 4 81.5 133.5 326 326 W all hole [ 65 Indoor uni[...]

6 MS-GD08ND- C1 MS-GD12ND- C1 WIRING DIAGRAM 5 INDOOR UNIT MS-GD10ND- C1[...]

7 REFRIGERANT SYSTEM DIAGRAM 6 MS-GD08ND- C1 MS-GD10ND- C1 INDOOR UNIT Room temperature thermistor Indoor heat exchanger RT11 Indoor coil thermistor RT12 Refrigerant pipe (Option) { 6.35 (with heat insulator) Flared connection Flared connection Refrigerant pipe (Option) { 12.7 (with heat insulator) Refrigerant flow in cooling Room temperature therm[...]

8 T able 1 How to set the remote controller exclusively for particular indoor unit After you turn the breaker ON, the first remote controller that sends the signal to the indoor unit will be regarded as the remote controller for the indoor unit. The indoor unit will only accepts the signal from the remote controller that has been assigned to the in[...]

9 When the indoor unit is controlled with the remote controller , the operation mode, set temperature, and the fan speed are memorized by the indoor electronic control P .C.board. The “AUTO REST ART FUNCTION” sets to work the moment power has restored after power failure. Then, the unit will restart automatically . However if the unit is operat[...]

10 8-1. Cautions on troubleshooting 1. Before troubleshooting, check the following: 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for mis-wiring. 2. T ake care the following during servicing. 1) Before servicing the air conditioner , be sure to turn off the main unit first with the remote controller , and then after[...]

1 1 5. How to install the horizontal vanes Upper vane Lower vane The holes on the insertion ends of the upper and lower horizontal vanes have different shapes. Insert this end first. Upper right Lower right Insert this end first. 6 5 4 3 2 1 In procedure 2 , 3 , 5 , and 6 , lock the stoppers until they click into place. Stopper Lock. Stopper Lock. [...]

12 8-2. Instruction of troubleshooting Start Indoor unit operates. Outdoor unit doesn't operate. Indoor unit doesn't receive the signal from remote controller . OPER A TION INDICA TOR lamp on the indoor unit is flashing on and off. Outdoor unit operates in only T est run operation. Outdoor unit doesn't operate even in T est run opera[...]

13 Before taking measures, make sure that the symptom reappears for accurate troubleshooting. Self check table 8-3. T roubleshooting check table • The following indication applies regardless of shape of the indicator . flashing Operation Indicator · Flashing of the OPERA TION INDICA TOR lamp (on the left) indicates possible abnormalities. · The[...]

14 8-4. T rouble criterion of main parts MS-GD08ND- C1 MS-GD10ND- C1 MS-GD12ND- C1 V ane motor (MV) Measure the resistance between the terminals with a tester . (Part temperature10°C ~ 30°C) RED YL W BRN ORN GRN ROTOR Normal Abnormal Open or short-circuit 240 ~ 260 " Room temperature thermistor (RT1 1) Part name Indoor coil thermistor (RT12)[...]

15 Y es B Check of remote controller and receiver P .C. board w Check if the remote controller is exclusive for this air conditioner . Replace the batteries. (Refer to 8-1.4.) T urn on a radio to AM and press switch on the remote controller . Is noise heard from radio? Are there any fluorescent lights of inverter or rapid-start type within the rang[...]

16 C Check of indoor electronic control P .C. board The unit doesn’t operate with the remote controller . Also, the OPERA TION INDICA TOR lamp doesn’t light up by pressing the EMERGENCY OPERA TION switch. CN201 L N 1 3 T erminal block Check both “parts side” and “pattern side” of the indoor electronic control P .C. board visually . Repl[...]

17 D Check of installation of the horizontal vane Start Replace the indoor electronic control P .C. board. Replace the safety device. Is the stopper of the horizontal vane locked to the indoor unit correctly? Y es No Is there resistance 0 " ? Relock the stopper of the horizontal vane to the indoor unit. Refer to 8-1-5. Y es Is the OPERA TION I[...]

18 Indoor coil thermistor (RT12) Room temperature thermistor (RT1 1) T emperature ( : ) Resistance (k " ) Release of Auto restart function Solder the Jumper wire to the JR07. (Refer to 7-3.) CN302 Power monitor , receiver P .C. board Power supply input 220 - 230V AC V aristor (NR1 1) Fuse 250V AC 3.15A Room temperature thermistor (RT1 1) Indoo[...]

19 9.1 MS-GD08ND- C1 MS-GD10ND- C1 MS-GD12ND- C1 OPERA TING PROCEDURE PHOTOS Photo 1 Screws of the panel 1. Removing the panel (1) Remove the screw caps of the panel. Remove the screws. (2) Pull the panel down to your side slightly and unhook the catches at the top. 2. Removing the electronic control P .C. board and the power monitor , receiver P .[...]

20 OPERA TING PROCEDURE PHOTOS Photo 5 Photo 7 Screws of the left side of the heat exchanger Photo 6 Hooks of the motor band Hexagon socket set screw Screw of the lead cover 5. Removing the indoor fan motor and the line flow fan (1) Remove the panel. (Refer to 1.) (2) Remove the electrical box. (Refer to 3.) (3) Pull out the drain hose from the noz[...]

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAP AN MITSUBISHI ELECTRIC CONSUMER PRODUCTS (THAILAND) CO., L TD. AMA T A NAKORN INDUSTRIAL EST A TE 700/406 MOO 7, T AMBON DON HUA ROH, AMPHUR MUANG, CHONBURI 20000 THAILAND Made in Thailand New publication, effective Feb. 2008 Specifications subject to change without notice[...]