Mitsubishi MS-18RV- User Manual

Page 2 - TECHNICAL CHANGES

2 TECHNICAL CHANGES 1 MSC-07RV- ➔ MSC-A07WV- MSC-09RV- ➔ MSC-A09WV- MSC-12RV- ➔ MSC-A12WV- 1. Rated voltage has changed. (220-240V ➔ 230V) 2. Indoor model has changed. MU-07RV- ➔ MU-A07WV- 1. Refrigerant has changed. (R22 ➔ R410A) 2. Compressor has changed. (RH130VGCT ➔ RN092VHSHT) MU-09RV- ➔ MU-A09...

Page 3 - INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT; Compressor

3 Refrigerating oil Refrigerant New refrigerant R410A HFC-32: HFC-125 (50%:50%) Pseudo-azeotropic refrigerant Not included A1/A1 72.6 -51.4 1.557 64 Non combustible 0 1730 From liquid phase in cylinder Possible Incompatible oil Non Non Previous refrigerant R22 R22 (100%) Single refrigerant Included ...

Page 4 - NOTE : The unit of pressure has been changed to MPa on the; Can R22 tools be used?; Tools dedicated for the air conditioner with R410A refrigerant

4 -30 -20 -10 0 10 20 30 40 50 60 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 (MPa [Gauge]) R410A R22 Conversion chart of refrigerant temperature and pressure Saturated liquid pressure ( : ) NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system). The co...

Page 6 - PART NAMES AND FUNCTIONS; INDOOR UNIT

6 PART NAMES AND FUNCTIONS 2 INDOOR UNIT MSC-A07WV -MSC-A09WV -MSC-A12WV - E1 E1 E1 Emergency operation switch Operation section Horizontal vane Air filter Air outlet Deodorizing filter(Gray sponge type) Vertical vane Air inlet to Breaker Remote controlreceiving section Remote controller Display sec...

Page 8 - VANE CONTROL button; REMOTE CONTROLLER; INDOOR / OUTDOOR CORRESPONDENCE TABLE

8 MUX-A19WV- E1 MUX-A25WV- E1 MUX-A20WV- E1 MUX-A10WV- E1 MUX-A26WV- E1 Combination of the connectable indoor units OUTDOOR UNIT A: MSC-A12WV- E1 or MSC-A12YV- E1 B: MSC-A07WV- E1 or MSC-A07YV- E1 A: MSC-A09WV- E1 B: orC: MSC-A09YV- E1 A: B: A: B: A: MSC-A12WV- E1 orB: MSC-A12YV- E1 C: MSC-A09WV- E1...

Page 9 - SPECIFICATION; NOTE: Test conditions are based on ISO 5151.

9 SPECIFICATION 4 Indoor model Function Indoor unit power supply Air flow(High/Med. /Low )Power outletRunning currentPower inputPower factorStarting currentFan motor currentModelWinding resistance(at 20 : ) Dimensions W O H O D WeightAir directionSound level(High/Med. /Low ) Fan speed (High/Med. /Lo...

Page 11 - Capacity; Outdoor

11 Outdoor model Function Capacity Dehumidification Outdoor air flow Power outlet Running current Power input Auxiliary heater Power factor Starting current Compressor motor current Fan motor current Model Output Winding resistance (at 20 : ) Model Winding resistance (at 20 : ) Dimensions W O H O D ...

Page 15 - NOISE CRITERIA CURVES

15 NOISE CRITERIA CURVES 5 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETERESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR BAND CENTER FREQUENCIES, Hz Test conditions, Cooling : DB27 : WB19...

Page 18 - OUTLINES AND DIMENSIONS; or more

OUTLINES AND DIMENSIONS 18 6 MSC-A07WV -MSC-A09WV - E1 E1 MSC-A12WV - E1 INDOOR UNIT INDOOR UNIT 217 215 81.5 81.5 41 2.5 42 271 231.5 4.5 81.5 133.5 326 326 162 19 58 5 7 or more 90 110 30 149 606 278 60 815 783 Wall hole [ 65 Indoor unit Installation plate Installation plate Insulation [ 28 Drain ...

Page 19 - REQUIRED SPACE; OUTDOOR UNIT

19 320 25 43 - 35 - 155 90 104 74 260 10 780 500 122 40 540 320 285 255 Service panel Gas refrigerant pipe jointRefrigerant pipe(flared) [ 9.52 (MU-A07/A09WV) (MUH-A07/A09WV) [ 12.7 (MU-A12WV) (MUH-A12WV) Liquid refrigerant pipe jointRefrigerant pipe(flared) [ 6.35 Air out Air in Air in 109 32 110 1...

Page 22 - WIRING DIAGRAM; MODELS WIRING DIAGRAM; MF

WIRING DIAGRAM 7 22 MSC-A07WV - MSC-A09WV - MSC-A12WV - E1 E1 E1 MODELS WIRING DIAGRAM SYMBOL NR11 RT11 RT12 SR141 NAME NAME NAME INDOOR FAN CAPACITOR FUSE(3.15A) INDOOR FAN MOTOR (INNER FUSE) VANE MOTOR VARISTOR ROOM TEMPERATURE THERMISTOR INDOOR COIL THERMISTOR SOLID STATE RELAY TERMINAL BLOCK SYM...

Page 23 - MC

23 MODELS WIRING DIAGRAM SYMBOL TB1,TB2 21S4 52C SYMBOL MF NR61 RT61 SR61,SR62 T61 SYMBOL C1 C65 DSAR F61 MC NAME NAME NAME COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE(2A) COMPRESSOR(INNER PROTECTOR) OUTDOOR FAN MOTOR(INNER FUSE) VARISTOR DEFROST THERMISTOR SOLID STATE RELAY TRANS...

Page 24 - MODEL WIRING DIAGRAM

24 OUTDOOR UNIT PE BLU BRN F62 DSAR CIRCUIT BREAKER WHT 1 2 TB3 1 BLK RED C2 2 1 4 3 X1 X1 X2 X2 4 3 BLU BRN BRN BRN F61 BRN BRN WHT WHT WHT WHT BRN 52C NO 52C COM 3 1 RED BLU RED BLK 21R TB2 MF WHT 2 WHT 5 5 6 6 R S MC C X2 N L POWER SUPPLY ~ / N230V50Hz TB1 BLK 8 8 7 7 WHT ORN YLW FROM INDOORUNIT ...

Page 26 - COMPRESSOR(INNER PROTECT

26 1 2 3 1 2 3 123 2 1 3 123 123 123 21R4 21R3 NR61 T61 1 2 4 3 4 3 C61 LD1 WHT WHT OUTDOOR CONTROL P .C. BOARD BRN BLU BRN BLU BRN BLU BLU X522 X521 BLK SR865 SR866 SR863 SR861 LD2 RED RED RED BLK WHT 65 2341 BRN BLU BLU TB4 CN86 CN85 CN81 CN91 CN90 TB3 TB2 X521 BLU BLU X522 BLU BLU 21RB F61 CN74 C...

Page 28 - REFRIGERANT SYSTEM DIAGRAM

REFRIGERANT SYSTEM DIAGRAM 28 8 MSC-A07WV -MSC-A09WV - E1 E1 MU-A07WV -MU-A09WV - E1 E1 MSC-A12WV - E1 MU-A12WV - E1 INDOOR UNIT INDOOR UNIT OUTDOOR UNIT OUTDOOR UNIT Indoorheatexchanger Room temperaturethermistorRT11 Refrigerant pipe [ 9.52 (with heat insulator) Outdoorheatexchanger Capillary tube ...

Page 31 - UNIT A; PIPING PREPARATION

31 Indoor unit A Outdoor unit MUX-A10WV- E1 Additional piping max. length 15m Max. lengthdifference10m Indoor unit B OUTDOOR UNIT INDOOR UNIT UNIT A Indoor heat exchanger Indoor coilthermistorRT12 RoomtemperaturethermistorRT11 UNIT B Indoor heat exchanger Outdoor heat exchanger Indoor coilthermistor...

Page 34 - UNIT C

34 MUX-A20WV- E1 Unit : mm OUTDOOR UNIT INDOOR UNIT UNIT A Indoor heat exchanger Indoor coilthermistorRT12 RoomtemperaturethermistorRT11 UNIT B Indoor heat exchanger Outdoor heat exchanger Indoor coilthermistorRT12 RoomtemperaturethermistorRT11 (With insulation) Refrigerant pipe 9.52 (With insulatio...

Page 39 - Outdoor unit

39 UNIT No. Insulation thickness Pipe For liquid For gas For liquid For gas Outside diameter mm 6.35 12.7 6.35 9.52 8mm 8mm 8mm 8mm Insulation material Heat resisting foam plastic0.045 specific gravity ADDITIONAL REFRIGERANT CHARGE (R410A:g) Max.limits UNIT No. A B C D Pipe length 15m 15m Total 30m ...

Page 40 - PERFORMANCE CURVES

PERFORMANCE CURVES 40 9 The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions,since operating conditions vary according to the areas where these units are installed. The following information has been pro-vided to clarify the o...

Page 43 - HEAT operation; Condition indoor:Dry bulb temperature 20.0°C; Outdoor low pressure

43 HEAT operation Condition indoor:Dry bulb temperature 20.0°C Wet bulb temperature 14.5°C Outdoor:Dry bulb temperature 7,15,20°C Wet bulb temperature 6,12,14.5°C 5 10 15 20 25( : ) 4.0 4.5 5.0 5.5 6.0 230V 7 5 10 15 20 25( : ) 2.0 2.5 3.0 3.5 4.0 7 230V 5 10 15 20 25( : ) 3.0 3.5 4.0 4.5 5.0 7 230V...

Page 44 - -4.OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT; COOL operation; Air flow should be set at MAX.

44 1.3 1.1 1.0 0.9 0.8 0.7 (kgf/ F [Gauge])(MPa[Gauge]) Outdoor low pressure (kgf/ F [Gauge]) 11 10 9 8 7 13 1.2 12 Outdoor unit current (A) Single operation (Unit A or B) 1.2 1.0 0.9 0.8 0.7 0.6 Outdoor low pressure (kgf/ F [Gauge]) 10 9 8 7 6 12 1.1 11 Single operation (Unit A) Single operation (U...

Page 46 - NOTE; SHF :Sensible heat factor

46 MSC-A07WV - : MU-A07WV - E1 E1 PERFORMANCE DATACOOL operation (230V) 21 18 2.70 1.51 0.56 568 2.59 1.45 0.56 596 2.48 1.39 0.56 625 2.39 1.34 0.56 653 21 20 2.82 1.24 0.44 596 2.70 1.19 0.44 632 2.62 1.15 0.44 646 2.53 1.11 0.44 675 22 18 2.70 1.62 0.60 568 2.59 1.55 0.60 596 2.48 1.49 0.60 625 2...

Page 75 - MICROPROCESSOR CONTROL; WIRELESS REMOTE CONTROLLER; lighted; Operation Indicator lamp; INDOOR UNIT DISPLAY SECTION; Indoor fan speed control; Thermostat control

75 MICROPROCESSOR CONTROL 10 ON/OFF FAN TOO WARM TOO COOL VANE MODE ECONO COOL STOP START HR. MIN. I FEEL COOL DRY P M C L O C K A M RESET CLOCK HEAT /FAN / Open the front lid. ON/OFF TOO COOL P M A M TOO WARM Signal transmitting section Operation display section OPERATE /STOP (ON /OFF)button TEMPER...

Page 78 - Gradation of fan speed in initial

78 (3) Warm air control. When the following any condition of 1 (a. ~ c.) and the condition of 2 are satisfied at the same time, warm air control works. 1 a.) When outdoor unit starts operating in HEAT mode.b.) When cold air prevention has been released. c.) When defrosting has been finished 2 When t...

Page 81 - more than

81 Mode COOL mode of "I FEEL CONTROL" DRY mode of "I FEEL CONTROL" HEAT mode of "I FEEL CONTROL" Initial room temperature Initial set temperature 26 : 26 : or more 25 : or more, less than 26 : 23 : or more, less than25 : 24 : Initial room temperatureminus 2 : Initial room tem...

Page 84 - PROGRAM TIMER; OPERATION INDICATOR lamp

84 EMERGENCY OPERATION switch PROGRAM TIMER (Example 1) The current time is 8:00 PM. The unit turns off at 11:00 PM, and on at 6:00 AM. ● The OFF timer and ON timer can be used in combination. ● “ ” and “ ” display shows the order of the OFF timer and ON timer operation. P M A M (Example 2) The curr...

Page 86 - SERVICE FUNCTIONS; 1-1. COMPULSORY DEFROSTING MODE FOR SERVICE

SERVICE FUNCTIONS 86 11 11-1. COMPULSORY DEFROSTING MODE FOR SERVICE < MUH-A07/A09/A12WV > By short circuit of the connector JPDS and JPSG on the outdoor deicer P.C. board, defrosting mode can be accom-plished regardless of the defrost interval restriction. (Refer to page 103.)Defrost thermist...

Page 88 - TROUBLESHOOTING; components for bursting and discoloration.; Press the RESET button.

88 TROUBLESHOOTING 12 3. Troubleshooting procedure 1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality. To make sure, check how many times the abnormality indication is flashing on and off before starting service work. 2) If the electr...

Page 89 - INFORMATION FOR MULTI SYSTEM AIR CONDITIONER; indoor units beyond the outdoor unit capacity.; Lighted

89 INFORMATION FOR MULTI SYSTEM AIR CONDITIONER OUTDOOR UNIT : MXZ-A18WV- MXZ-A26WV- MXZ-A32WV- Multi system air conditioner can connect two or more indoor units with one outdoor unit. •Unit won’t operate in case the total capacity of indoor units exceeds the capacity of outdoor units. Do not connec...

Page 91 - Self check table

91 12-3. Troubleshooting check table Operation Indicator · Flashing of the OPERATION INDICATOR lamp (left-hand side) indicates possible abnormalities.· The OPERATION INDICATOR lamp (left-hand side lamp) is lighting during normal operation. Lighted Not lighted • The following indication applies regar...

Page 92 - Trouble criterion of main parts; Part name

92 Measure the resistance between the terminals with a tester.(Coil wiring temperature10°C ~ 30°C) Room temperaturethermistor (RT11) 12-4. Trouble criterion of main parts Part name Indoor coilthermistor (RT12) Indoor fanmotor (MF)INNER FUSE136 i 3°C CUT OFF Motor part Sensor part Check method and cr...

Page 95 - When OPERATION INDICATOR lamp flashes 3-time.

95 B B Check of remote controller and receiver P.C. board Indoor unit operates by pressing the EMERGENCY OPERATION switch, but doesn’t operate with the remote controller. Yes Replace the batteries. (Refer to page 88.) Turn on a radio to AM and press switchon the remote controller. Is noise heard fro...

Page 96 - Compressor and/or outdoor fan motor doesn’t operate.

96 C C Check of indoor electronic control P.C. board Check the both “parts side” and “pattern side” of indoor electronic control P.C. board visually. Replace the fuse. Is fuse (F11) blown? Be sure to check both fuse and varistor in any case. Replace the fan motor. Replace the indoor electronic contr...

Page 97 - Check of outdoor unit; Compressor and/or outdoor fan doesn’t operate.

97 D D Check of outdoor unit No Start Press the EMERGENCY OPEERATION switch of all indoor units. Yes Is there 230V AC between L - N on the TB1 of outdoor unit? No Is fuse(F61) on the outdoor control P.C. board blown? Check and rectify the connecting wire of indoor and outdoor unit. 3 minutes later, ...

Page 98 - Compressor and/or outdoor fan motor doesn’t stop.

98 E E Check of outdoor unit Does compressor or outdoor fan motor stop? No Yes Is there 230V AC between COM on the compressor contactor (52C) and N on the outdoor terminal block (TB1)? Replace the compressor contactor(52C). Yes OK No Replace the indoor electoronic control P.C. board. Rectify the con...

Page 100 - How to check mis-wiring and serial signal error

100 G G How to check mis-wiring and serial signal error Mis-wiring is indicated.(0.5-sec. ON, 0.5-sec. OFF) 1. Turn OFF the power supply (indoor/outdoor unit) and disconnect indoor and outdoor connecting wire on indoor side. 2. Short-circuit between indoor terminal block N and 3 . 3. Turn ON the pow...

Page 101 - Cool air does not blow out although indoor unit is operating.

101 H H Check of outdoor thermistor Measure resistance between CN 661 1 and 2 . No Yes Replace the thermistor. Defrost thermistor (RT61) Reconnect CN661.Turn ON the power supply and press the EMERGENCY OPERATION switch. Is the resistance of thermistor normal? No Yes Does the unit operate 10 minutes ...

Page 105 - DISASSEMBLY INSTRUCTIONS; Removing the front panel; NOTE : In case of removing only indoor electronic control; Photo 2

105 DISASSEMBLY INSTRUCTIONS 13 13-1. MSC-A07WV - MSC-A09WV - MSC-A12WV - INDOOR UNIT E1 E1 E1 OPERATING PROCEDURE PHOTOS 1. Removing the front panel (1) Remove the screw caps of the front panel. Remove the screws. (2) Pull the panel down to your side slightly and unhook the catches at the top. 2. R...

Page 108 - Photo 6

108 OPERATING PROCEDURE PHOTOS Photo 6 Compressor Terminal cover 3. Removing the propeller and the outdoor fan motor (1) Remove the cabinet. (Refer to 1.)(2) Remove the propeller nut.(3) Remove the propeller.NOTE : Loose the propeller in the rotating direction for removal.When attaching the propelle...

Page 109 - Removing the cabinet; Screws; Photo 1; Screws of the cabinet; Screws of the front panel and motor support

109 13-3. MUH-A07WV - MUH-A09WV - MUH-A12WV - OUTDOOR UNIT E1 E1 E1 OPERATING PROCEDURE PHOTOS 1. Removing the cabinet (1) Remove the screws of the top panel.(2) Remove the screw of the service panel.(3) Remove the screws of the cabinet.(4) Remove the screws of the front panel and motor support.(5) ...

Page 110 - Removing the propeller and the outdoor fan motor

110 OPERATING PROCEDURE PHOTOS 3. Removing the propeller and the outdoor fan motor (1) Remove the cabinet. (Refer to 1.)(2) Remove the propeller nut.(3) Remove the propeller.NOTE : Loose the propeller in the rotating direction for removal.When attaching the propeller, align the mark on the pro-pelle...

Page 113 - Other models are almost the same as MUX-A20WV.; OPERATING PROCEDURE; Removing the cabinet; Top panel

113 13-5. MUX-A19WV - MUX-A20WV - MUX-A25WV - MUX-A26WV - OUTDOOR UNIT E1 E1 E1 E1 NOTE : These photos are MUX-A20WV. Other models are almost the same as MUX-A20WV. OPERATING PROCEDURE PHOTOS 1.Removing the cabinet (1) Remove the screws of the service panel.(2) Remove the screws of the top panel.(3)...

Page 114 - Removing the relay panel; NOTE : Loose the propeller in the rotating direction for; Removing the outdoor fan motor; disconnect the outdoor fan motor connector.; Photo 4; Clamp

114 OPERATING PROCEDURE PHOTOS 2. Removing the relay panel (1) Remove the cabinet. (Refer to 1.)(2) Disconnect the following connectors. . Outdoor fan motor . Only MUX-20WV Solenoid coil (21RB, 21R3, 21R4) . Only MUX-26WV Solenoid coil (21RA, 21RB, 21R1, 21R2, 21R3, 21R4) 3. Removing the propeller (...

Page 116 - PARTS LIST; Symbol

PARTS LIST 116 14 1 2345 6 789 10 E02 749 234E02 751 234E02 749 000E02 749 067E02 749 010E02 408 142E02 749 100E02 751 100 E02 749 975E02 408 970E02 751 970 BOX(WH)BOX(WH)PANEL ASSEMBLY(WH)SCREW CAP(WH)FRONT PANEL(WH)CATCHAIR FILTERAIR FILTERAIR CLEANING FILTERDEODORIZING FILTERCORNER BOX (RIGHT)INS...

Page 117 - AND FUNCTIONAL PARTS; Part number that is circled is not shown in the illustration.

117 Part No. No. Part Name 21 22 23 INDOOR HEAT EXCHANGERINDOOR HEAT EXCHANGERUNION(GAS)UNION(GAS)UNION(LIQUID) 1 1 1 1 11 { 9.52 { 12.7 { 6.35 1 1 1 E02 001 504E02 661 702E02 749 235E02 749 040E02 749 041E02 127 382E02 749 385E02 763 034E02 749 468E02 749 452E02 750 452E02 751 452E02 749 303E02 151...

Page 119 - 4-6. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS; Part numbers that are circled are not shown in the illustration.

119 1 2 3 4 5678 E02 665 501E02 676 301E02 677 301E02 661 351E02 664 351E02 752 353E02 694 353E02 696 353E02 466 375E02 438 374E02 466 340E02 128 383 PROPELLEROUTDOOR FAN MOTOROUTDOOR FAN MOTOROUTDOOR FAN CAPACITOROUTDOOR FAN CAPACITORCOMPRESSOR CAPACITORCOMPRESSOR CAPACITORCOMPRESSOR CAPACITORTERMI...

Page 121 - 4-8. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS

121 1 2 3 4 56789 1011 E02 665 501E02 671 301E02 672 301E02 752 353E02 694 353E02 696 353E02 752 451E02 754 451E02 128 383E02 466 375E02 697 374E02 699 310E02 440 490E02 095 382E02 085 385 PROPELLEROUTDOOR FAN MOTOROUTDOOR FAN MOTORCOMPRESSOR CAPACITORCOMPRESSOR CAPACITORCOMPRESSOR CAPACITORDEICER P...

Page 123 - 4-11. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS

123 123456 7 89 1011 E02 665 501E02 677 301E07 056 374E02 664 351E02 755 341E02 755 340E02 637 374E02 755 374E02 128 383E02 742 353E02 095 382E07 001 241 PROPELLEROUTDOOR FAN MOTORTERMINAL BLOCKOUTDOOR FAN CAPACITORRELAYCOMPRESSOR CONTACTORTERMINAL BLOCKTERMINAL BLOCKSURGE ABSORBERCOMPRESSOR CAPACIT...

Page 126 - FUNCTIONAL PARTS AND ELECTRICAL PARTS

126 MUX-A19WV - MUX-A20WV - MUX-A25WV - MUX-A26WV - 14-13. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS E1 E1 E1 E1 1 2 3 4 5 6 7 8 9 101112 OUTDOOR FAN MOTOROUTDOOR FAN MOTORPROPELLEROUTDOOR CONTROL P.C. BOARDOUTDOOR CONTROL P.C. BOARDOUTDOOR CONTROL P.C. BOARDOUTDOOR CONTROL P.C. BOARD TERMI...

C C Copyright 2002 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD Distributed in May 2004. No.OB307 REVISED EDITION-C 6Distributed in Jan. 2004. No.OB307 REVISED EDITION-B 6Distributed in Feb. 2003. No.OB307 REVISED EDITION-A 17Distributed in Dec. 2002. No.OB307 17Made in Japan New publication, effective M...

Mitsubishi MS-18RV- User Manual

Table of Contents:

Summary

Other Mitsubishi Models