Service manual

ManualsBrandsMitsubishi ManualsHeat PumpMSH-09RV

SERVICE MANUAL

CONTENTS

1. TECHNICAL CHANGES ····································2

2. PART NAMES AND FUNCTIONS······················6

3. INDOOR/OUTDOOR

CORRESPONDENCE TABLE ···························8

4. INDOOR UNITS COMBINATION ·······················9

5. SPECIFICATION···············································10

6. NOISE CRITERIA CURVES···························· 17

7. OUTLINES AND DIMENSIONS ······················ 20

8. WIRING DIAGRAM ··········································25

9. REFRIGERANT SYSTEM DIAGRAM··············32

10. PERFORMANCE CURVES······························45

11. MICROPROCESSOR CONTROL·····················84

12. SERVICE FUNCTIONS···································102

13. TROUBLESHOOTING····································104

14. DISASSEMBLY INSTRUCTIONS···················129

15. PARTS LIST····················································144

16. OPTIONAL PARTS·········································157

Wireless type

Models

MSC-A07WV -

(

)

· MU-A07WV -

MSC-A09WV -

(

)

· MU-A09WV -

MSC-A12WV -

(

)

· MU-A12WV -

MSC-A07WV -

(

)

· MUH-A07WV -

MSC-A09WV -

(

)

· MUH-A09WV -

MSC-A12WV -

(

)

· MUH-A12WV -

Multi system type

Models

MSC-A07WV -

(

)

· MUX-A10WV -

MSC-A09WV -

(

)

· MUX-A19WV -

MSC-A12WV -

(

)

· MUX-A20WV -

· MUX-A25WV -

· MUX-A26WV -

Inverter-controlled multi system Model

· MXZ-A18WV -

E1E1

MSC-A07WV -

MSC-A09WV -

MSC-A12WV -

No. OB307

REVISED EDITION-A

HFC

utilized

R410A

SPLIT-TYPE, AIR CONDITIONERS

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

Revision:

● MXZ-A18WV - have been added.

● MSC-A07/09/12WV - Part No.

have changed.

VARISTOR (NR11& NR12)

E02 336 385 ➔ E02 749 385

● Please void OB307.

Indication of

model name

Remote

controller

OB307A1.qxp 03.2.19 3:56 PM Page 1

Summary of content (158 pages)

PAGE 1
OB307A1.qxp 03.2.19 3:56 PM Page 1 Revision: SPLIT-TYPE, AIR CONDITIONERS SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS ● MXZ-A18WV - E1 have been added. ● MSC-A07/09/12WV - E1 Part No..have changed. VARISTOR (NR11& NR12) E02 336 385 ➔ E02 749 385 ● Please void OB307. HFC utilized SERVICE MANUAL No.
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OB307A1.qxp 1 03.2.19 3:56 PM Page 2 TECHNICAL CHANGES MSC-07RV- E4 ➔MSC-A07WV- E1 MSC-09RV- E4 ➔MSC-A09WV- E1 MSC-12RV- E4 ➔MSC-A12WV- E1 1. Rated voltage has changed. (220-240V➔230V) 2. Indoor model has changed. MU-07RV- E4 ➔MU-A07WV- E1 1. Refrigerant has changed. (R22➔R410A) 2. Compressor has changed. (RH130VGCT➔RN092VHSHT) MU-09RV- E4 ➔MU-A09WV- E1 1. Refrigerant has changed. (R22➔R410A) 2. Compressor has changed. (RH140VGCT➔RN099VHSHT) MU-12RV- E4 ➔MU-A12WV- E1 1. Refrigerant has changed.
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03.2.19 3:56 PM Page 3 INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT • This room air conditioner adopts an HFC refrigerant (R410A) which never destroys the ozone layer. • Pay particular attention to the following points, though the basic installation procedure is same as that for R22 conditioners. 1 As R410A has working pressure approximate 1.6 times as high as that of R22, some special tools and piping parts/ materials are required. Refer to the table below.
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OB307A1.qxp 03.2.19 3:57 PM Page 4 Conversion chart of refrigerant temperature and pressure (MPa [Gauge]) 4.0 Saturated liquid pressure 3.5 R410A 3.0 R22 2.5 2.0 NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system). 1.5 1.0 f [Gauge]) The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/f 0.5 0.0 -0.5 -30 -20 -10 0 10 20 30 40 50 60 (:) 1.
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OB307A1.qxp 03.2.19 3:57 PM Page 5 2 Flaring work and flare nut Flaring work for R410A pipe differs from that for R22 pipe. For details of flaring work, refer to Installation manual “FLARING WORK”. Dimension of flare nut Pipe diameter mm R410A R22 6.35 17 17 9.52 22 22 12.7 26 24 3.Refrigerant oil Apply the special refrigeration oil (accessories: packed with indoor unit) to the flare and the union seat surfaces. 4.Air purge • Do not discharge the refrigerant into the atmosphere.
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OB307A1.qxp 03.2.19 3:57 PM Page 8 REMOTE CONTROLLER Signal transmitting section Operation display section PM AM OPERATE /STOP (ON /OFF)button TOO ON/OFF WARM TOO COOL TEMPERATURE buttons Open the front lid. CLOCK PM AM TOO ON/OFF WARM FAN SPEED CONTROL button TOO COOL FAN STOP VANE START I FEEL COOL HEAT /FAN DRY / MODE HR. ECONO COOL MIN.
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OB307A1.qxp 03.2.19 3:57 PM Page 9 MXZ-A18WV - E1 OUTDOOR UNIT Combination of the connectable indoor units MXZ-A18WV- E1 07+07 07+09 07+12 09+09 09+12 12+12 ❈There is no combination other than this table. 4 INDOOR UNITS COMBINATION MXZ-A18WV - E1 NOTE: Electrical data is for outdoor unit only. Cooling capacity (kW) Indoor units combination Unit A Unit B 07 2.3 – 09 2.5 – 12 3.4 – 07+07 2.3 2.3 07+09 2.3 2.5 07+12 2.02 2.98 09+09 2.5 2.5 09+12 2.2 3.1 12+12 2.65 2.
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OB307A1.qxp 5 03.2.19 3:57 PM Page 10 SPECIFICATION Indoor model Function Indoor unit power supply Special remarks Fan motor Electrical data Capacity Air flow(High/Med.w/Low w ) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance(at 20:) Dimensions WOHOD Weight Air direction Sound level(High/Med.w/Loww ) Fan speed (High/Med.
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03.2.19 3:57 PM Page 11 Indoor model Function Indoor unit power supply Special remarks Fan motor Electrical data Capacity Air flow(High/Med.w/Low w) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance(at 20:) Dimensions WOHOD Weight Air direction Sound level(High/Med.w/Loww ) Fan speed(High/Med.
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OB307A1.qxp 03.2.19 3:57 PM Page 12 Indoor model Function Indoor unit power supply Special remarks Fan motor Electrical data Capacity w w Air flow (High/Med./Low) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance(at 20:) Dimensions WOHOD Weight Air direction w w Sound level (High/Med./Low) w w Fan speed (High/Med.
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03.2.19 3:57 PM Page 13 MSC-A09WV - E1 Cooling Single phase 230V,50Hz 474/384w/306w 10 0.17 35 90 — 0.17 RC4V19-LA WHT-BLK 413 BLK-RED 334 815O278O217 9 5 36/31w/25w 900/770w/650w 3 10 10 Indoor model Function Indoor unit power supply Special remarks Fan motor Electrical data Capacity w w Air flow (High/Med./Low) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance (at 20:) Dimensions WOHOD Weight Air direction w w Sound level (High/Med.
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OB307A1.qxp 03.2.19 3:57 PM Page 14 MSC-A12WV - E1 (Unit A ,B) Cooling Single phase 230V,50Hz 582/444w/324w Indoor model Function Indoor unit power supply w Capacity Air flow (High/Med./Low) K /h A Power outlet A Running current W Power input % Power factor A Starting current A Fan motor current Model Winding " resistance(at20:) mm Dimensions WOHOD kg Weight Air direction w w Sound level (High/Med./Low) dB w w Fan speed (High/Med.
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03.2.19 3:57 PM Page 15 Special remarks Fan motor Electrical data Indoor model Function Indoor unit power supply w Capacity Air flow (High/Med./Low) K /h A Power outlet A Running current W Power input % Power factor A Starting current A Fan motor current Model Winding " resistance (at 20:) mm Dimensions WOHOD kg Weight Air direction w w Sound level (High/Med./Low) dB w w Fan speed (High/Med.
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OB307A1.qxp 03.2.19 3:57 PM Page 16 MXZ-A18WV - E1 Single phase 230V,50Hz 2 Total model name 24 Total model name 24 Max. 30 (chargeless 20) Max. 20 10 10 Cooling Heating 5.4 (1.55~6.0) 6.6 (1.58~7.
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OB307A1.qxp 03.2.19 3:57 PM 7 Page 20 OUTLINES AND DIMENSIONS Unit: mm 81.5 4.5 133.5 231.5 Installation plate INDOOR UNIT Indoor unit 271 MSC-A07WV - E1 MSC-A09WV - E1 81.5 326 42 41 2.5 783 81.5 326 Wall hole [65 215 Air in 149 606 58 { 90 30 60 5 Installation plate 7 or more 278 815 162 Power supply cord Lead to right 1.0m Lead to left 0.3m Drain hose [16 (Connected part O,D) Insulation [28 110 Air out 19 Liquid line [6.35-0.5m Gas line [9.52-0.43m Insulation [37 O.
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03.2.19 3:57 PM Page 21 MU-A07WV - E1 MU-A09WV - E1 MU-A12WV - E1 MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 100mm or more Unit: mm REQUIRED SPACE OUTDOOR UNIT 100 mm ore m 00m or m 1 or m ore Air in 320 32 ore or m 35 0m 255 285 320 109 mm 400 m or mo re Air in Drainage 3holes [33 147 110 Air out 25 Service panel 155 90 260 43- 35- 540 Liquid refrigerant pipe joint Refrigerant pipe (flared) [6.35 10 OB307A1.
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OB307A1.qxp 03.2.19 3:57 PM Page 22 Unit: mm 100mm or more OUTDOOR UNIT REQUIRED SPACE MUX-A10WV- E1 Air in ore m 00m 1 100 mm 320 or m or m 255 285 320 109 32 ore ore rm Air in o 0mm 40 Drainage 3holes [33 147 35 110 Air out 0m m 25 or mo re Service panel 10 122 500 780 40 10- 226 176 126 76 260 540 Liquid refrigerant pipe joint Refrigerant pipe (flared) [6.35 120 56 MUX-A19WV- E1 Gas refrigerant pipe joint Refrigerant pipe (flared) [9.
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03.2.19 3:57 PM Page 23 Unit: mm OUTDOOR UNIT MUX-A20WV- E1 Open as a rule 500mm or more if the front and both sides are open 500 273 100mm or more 200mm or more if there are obstacles to both sides 100mm or more 438 Air in Air in 360 330 34 125 30 Drainage 3holes {33 Open as a rule 500mm or more if the back, both sides and top are open 100 350mm or more 40 Air out } C UNIT } B UNIT } A UNIT 76 50 505050 50 10° Service panel Liquid refrigerant pipe joint Refrigerant pipe (flared) {6.
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OB307A1.qxp 03.2.19 3:57 PM Page 24 OUTDOOR UNIT MUX-A26WV- E1 438 273 Air in 100 100mm or more 200mm or more if there are obstacles to both sides 100mm or more 40 360 330 125 30 34 Drainage 3 holes {33 Unit: mm Open as a rule 500mm or more if the front and both sides are open Air in Open as a rule 500mm or more if the back, both sides and top are open Air out 500 840 121 350mm or more 65 61 Service panel D Unit C Unit Gas refrigerant pipe joint Refrigerant pipe (flared) {9.
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03.2.19 3:57 PM 8 Page 25 WIRING DIAGRAM MSC-A07WV - E1 MSC-A09WV - E1 MSC-A12WV - E1 MODELS WIRING DIAGRAM INDOOR UNIT TO OUTDOOR TB UNIT L CONNECTING BRN FOR 3 MUH OR MXZ TYPE N 12V FOR MU OR MUX TYPE 12V 2 BRN TAB12 RED CN201 3 2 1 CN202 2 1 BLU BLU WHT 1 BLK GRN PE CIRCUIT BREAKER SYMBOL NAME T11 NR11 CN 112 RT12 CN 111 RT11 CN 121 C11 F11 SR141 BLK GRY YLW BRN WHT RED 3 1 3 5 1 2 3 MF 4 5 6 CN211 CN 101 CN LD103 151 POWER SUPPLY CORD ~/N 230V 50Hz GRN/YLW OB307A1.
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OB307A1.qxp 03.2.
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03.2.19 3:57 PM Page 27 MUX-A10WV - E1 MODEL WIRING DIAGRAM TB1 2 1 X1 8 BLK YLW7 BLU 2 BLU 1 BLU 21R1BLU BLU 2 BLU BLU 1 C C1 RED S MC WHT 1 BLU BLU 2 52C BLU 21R2 BLU F62 F61 BLU X2 8 ORN NAME SYMBOL BRN 5 X1 1 3 6 X1 2 4 BRN BRN TB2 WHT7 1 WHT 1 TB3 5 X2 1 BRN 2 WHT WHT BRN CIRCUIT BREAKER FROM INDOOR UNIT No.B CONNECTING 12V COM N PE FROM INDOOR UNIT No.A CONNECTING 12V 52C NO BRN 3 6 X2 2 BRN L BLU POWER SUPPLY ~/N 230V 50Hz C2 OUTDOOR UNIT DSAR OB307A1.
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OB307A1.qxp 03.2.19 3:57 PM Page 28 MUX-A19WV - E1 MUX-A25WV - E1 MODELS WIRING DIAGRAM OUTDOOR UNIT POWER SUPPLY TB1 L ~/N 230V N 50Hz 2 1 BLU ORN BRN BLU BRN BRN BLU 3 X521 T61 WHT C2 RED S BLK R MC2 C WHT 2 3 4 5 6 WHT BLK CN91 1 4 4 X522 NR61 3 2 1 3 BLK R MC1 C RED LD2 RED LD1 YLW X521 X522 RED 1 3 2 1 F61 BLU 3 2 1 CN90 OUTDOOR CONTROL P.C.
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FROM INDOOR UNIT C CONNECTING 12V FROM INDOOR UNIT A CONNECTING 12V FROM INDOOR UNIT B CONNECTING 12V 29 3 2 WHT 1 CN91 21R4 TERMINAL BLOCK TB1 SR866 SR865 SR863 RELAY (C) (21R4) RELAY (21RB) VG79B201H02 SOLENOID COIL (C) NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing. 2. Use copper conductors only. (For field wiring) 3. Symbols below indicate.
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PE 30 2 SR866 SR867 FUSE(3.
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03.2.19 4:02 PM Page 31 OUTDOOR UNIT E1 TB2 3 ORN X64 U SYMBOL AFM CT61 CT761 C61 C62 C63 C65 DS61 DS62 F61 F801 F911 F912 IPM L 21S4 NAME ACTIVE FILTER MODULE CURRENT TRANSFORMER CURRENT TRANSFORMER SMOOTHING CAPACITOR SMOOTHING CAPACITOR SMOOTHING CAPACITOR FAN MOTOR CAPACITOR DIODE MODULE DIODE MODULE FUSE(20A) FUSE(1A) FUSE(1A) FUSE(3.
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OB307A2.qxp 9 03.2.19 4:02 PM Page 32 REFRIGERANT SYSTEM DIAGRAM Unit:mm MU-A07WV - E1 MU-A09WV - E1 MSC-A07WV - E1 MSC-A09WV - E1 INDOOR UNIT Indoor heat exchanger Refrigerant pipe [9.52 (with heat insulator) OUTDOOR UNIT Stop valve (with service port) Muffler Indoor coil thermistor RT12 Outdoor heat exchanger Flared connection Room temperature thermistor RT11 Compressor Flared connection Strainer Capillary tube [3.0x[1.4x500(MU-A07WV) [3.0x[1.
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OB307A2.qxp 03.2.19 4:02 PM Page 33 Unit:mm MSC-A07WV - E1 MSC-A09WV - E1 INDOOR UNIT Indoor heat exchanger Indoor coil thermistor RT12 MUH-A07WV - E1 MUH-A09WV - E1 Refrigerant pipe [ 9.52 (with heat insulator) Flared connection OUTDOOR UNIT 4-way valve Defrost thermistor RT61 Stop valve (with service port) Muffler Outdoor heat exchanger Room temperature thermistor RT11 Compressor Capillary tube [3.0x[1.6x350(MUH-A07WV) [3.0x[1.
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OB307A2.qxp 03.2.19 4:02 PM Page 34 MAX. REFRIGERANT PIPING LENGTH Refrigerant piping Piping size O.D : mm Max. length : m Model { MSC-A07WV MU-A07WV { MSC-A09WV MU-A09WV { MSC-A12WV MU-A12WV - A Gas 20 9.52 Liquid Indoor unit Outdoor unit Gas 0.43 Gas 0 Liquid 0.5 Liquid 0 E1 E1 E1 6.35 E1 E1 12.7 25 E1 Refrigerant piping Piping size O.D : mm Max. length : m Model { MSC-A07WV MUH-A07WV { MSC-A09WV MUH-A09WV { MSC-A12WV MUH-A12WV - Length of connecting pipe : m A Gas 20 9.
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OB307A2.qxp 03.2.19 4:02 PM Page 35 MUX-A10WV- E1 MSC-A07WV- E1 INDOOR UNIT OUTDOOR UNIT Room temperature thermistor RT11 Refrigerant pipe 9.52 (With insulation) Strainer UNIT A Unit : mm Indoor heat exchanger Solenoid valve 21R Capillary tube [3.0 x [1.4 x 1000 Stop valve with service port Muffler Flared connection Refrigerant pipe 6.
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OB307A2.qxp 03.2.19 4:02 PM Page 36 Unit : mm MSC-A07WV- E1 MSC-A12WV- E1 MUX-A19WV- E1 INDOOR UNIT OUTDOOR UNIT Room temperature thermistor RT11 UNIT A MSC-A12WV Refrigerant pipe 12.7 (With insulation) Indoor heat exchanger Stop valve with service port Muffler E1 Flared connection Indoor coil thermistor RT12 Room temperature thermistor RT11 Compressor(A) Stop valve Refrigerant pipe 6.35 (With insulation) Capillary tube Strainer Outdoor heat exchanger [3.0 x [1.
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OB307A2.qxp 03.2.19 4:02 PM Page 37 MSX-A19WV- E1 MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE Indoor unit A MSC-A12WV - E1 Indoor unit B MSC-A07WV - E1 LA H H LB Outdoor unit MUX-A19WV - E1 UNIT No. Max. limits Pipe length Height difference (H) No.
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OB307A2.qxp 03.2.19 4:02 PM Page 38 Unit : mm MSC-A09WV- E1 MUX-A20WV- E1 INDOOR UNIT OUTDOOR UNIT Room temperature thermistor RT11 UNIT A MSC-A09WV Refrigerant pipe 9.52 (With insulation) Indoor heat exchanger Muffler Stop valve with service port E1 Flared connection Indoor coil thermistor RT12 Room temperature thermistor RT11 Compressor(A) Stop valve Capillary tube Refrigerant pipe 6.35 (With insulation) Refrigerant pipe 9.
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OB307A2.qxp 03.2.19 4:02 PM Page 39 MSX-A20WV- E1 MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE Indoor unit A MSC-A09WV - E1 Indoor unit C MSC-A09WV - E1 Indoor unit B MSC-A09WV - E1 LA H H LB LC H Outdoor unit MUX-A20WV - E1 UNIT No. Max. limits Pipe length A LA B LB C LC Height difference (H) No.
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OB307A2.qxp 03.2.19 4:02 PM Page 40 Unit : mm MSC-A12WV- E1 MUX-A25WV- E1 INDOOR UNIT OUTDOOR UNIT Room temperature thermistor RT11 UNIT A MSC-A12WV Refrigerant pipe 12.7 (With insulation) Indoor heat exchanger Stop valve with service port Muffler E1 Flared connection Indoor coil thermistor RT12 Room temperature thermistor RT11 Compressor(A) Stop valve Refrigerant pipe 6.35 (With insulation) Capillary tube Strainer Outdoor heat exchanger [3.0 x [1.4 x 700 Refrigerant pipe 12.
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OB307A2.qxp 03.2.19 4:02 PM Page 41 MSX-A25WV- E1 MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE Indoor unit A MSC-A12WV - E1 Indoor unit B MSC-A12WV - E1 LA H H LB Outdoor unit MUX-A25WV - E1 UNIT No. Max. limits Pipe length Height difference (H) No.
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OB307A2.qxp 03.2.19 4:02 PM Page 42 MSC-A09WV- E1 MSC-A12WV- E1 MUX-A26WV- E1 INDOOR UNIT Room temperature thermistor RT11 OUTDOOR UNIT Refrigerant pipe {12.7 (With insulation) Strainer UNIT A MSC-A12WV- E1 Indoor heat exchanger Stop valve with service port Room temperature thermistor RT11 Refrigerant pipe {6.35 (With insulation) Solenoid valve 21R1 Stop valve Capillary tube [3.0 x [1.4 x 1000 Strainer Capillary tube [3.0 x [2.
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OB307A2.qxp 03.2.19 4:02 PM Page 43 MSX-A26WV- E1 MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE Indoor unit A Indoor unit B Indoor unit C Indoor unit D MSC-A12WV- E1 MSC-A12WV- E1 MSC-A09WV- E1 MSC-A09WV- E1 LA H LB H LC H LD H Outdoor unit MUX-A26WV- E1 UNIT No. Max. limits Pipe length A LA B LB Height difference (H) LA 15m + C LC D LD 15m LB 15m LC + 15m LD No.
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OB307A2.qxp 03.2.19 4:02 PM Page 44 MXZ-A18WV - E1 Unit:mm Discharge temperature thermistor R.V. coil heating ON cooling OFF Compressor Refrigerant flow in cooling Refrigerant flow in heating {8 Muffler {12 Stop valve (with service port) Indoor Unit B Indoor Unit A Stop valve (with service port) Gas pipe temperature B thermistor Muffler 4-way valve {12 Gas pipe temperature A thermistor Capillary tube {1.8✕{0.6✕750 Stop valve {6 Indoor Unit A Capillary tube {3.0✕{2.
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OB307A2.qxp 03.2.19 4:02 PM 10 Page 45 PERFORMANCE CURVES MSC-A07WV - E1 MSC-A09WV - E1 MSC-A12WV - E1 MU-A07WV - E1 MU-A09WV - E1 MU-A12WV - E1 MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 MUX-A10WV - E1 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 MXZ-A18WV - E1 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.
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03.2.19 4:02 PM Page 46 8.8 9.7 7.1 8.0 8.8 6.4 7.2 7.9 5.8 6.5 7.1 5.1 5.1 6.3 MSC-A12WV - E1 (MUH-A12WV - E1 ) 9.6 10.6 7.8 MSC-A09WV - E1 (MUH-A09WV - E1 ) 8.5 MSC-A07WV - E1 (MUH-A07WV - E1 ) 18.8 23.3 16.3 17.2 21.4 14.8 15.7 19.4 13.3 14.1 17.5 11.8 12.5 15.5 10.4 11.0 13.6 8.9 9.4 11.7 MSC-A12WV - E1 (MUH-A12WV - E1 ) 20.4 25.2 17.8 MSC-A07WV - E1 (MUH-A07WV - E1 ) 19.2 MSC-A09WV - E1 (MUH-A09WV - E1 ) OB307A2.
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Page 47 Outdoor low pressure (kgf/F[Gauge])(MPa[Gauge]) 12 1.2 11 1.1 10 1.0 9 0.9 8 0.8 7 0.7 15 MU-A09WV - E1 230V 20 50 25 60 30 70(%) 3.5 230V 3.0 2.5 2.0 15 35(:) 1.2 11 1.1 10 1.0 9 0.9 8 0.8 7 0.7 15 MU-A12WV - E1 230V 20 50 25 60 30 70(%) 12 1.2 11 1.1 10 1.0 230V 5.0 4.0 3.0 15 35(:) MUH-A07WV - E1 8 0.8 7 0.7 15 20 50 25 60 30 70(%) 12 1.2 11 1.1 10 1.0 9 0.9 8 0.8 7 0.7 15 2.5 2.
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03.2.19 4:02 PM Page 48 MUH-A12WV - E1 (kgf/F[Gauge])(MPa[Gauge]) Outdoor low pressure 13 12 11 10 9 8 7 1.2 230V 1.1 1.0 0.9 0.8 0.7 15 20 50 25 60 MUH-A12WV - E1 6.0 1.3 Outdoor unit current (A) OB307A2.qxp 30 70(%) 5.0 230V 4.0 3.0 2.0 15 35(:) 20 50 25 60 35(:) 30 70(%) Ambient temperature(˚C) Ambient humidity(%) Ambient temperature(˚C) Ambient humidity(%) HEAT operation Condition indoor:Dry bulb temperature 20.0°C Wet bulb temperature 14.5°C MUH-A07WV - E1 3.5 230V 3.0 2.
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OB307A2.qxp 03.2.19 4:02 PM MSC-A07WV - E1 MSC-A09WV - E1 MSC-A12WV - E1 Page 49 MUX-A10WV - E1 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 9.4 10.2 9.4 9.5 10.8 10.2 10.2 10.3 8.6 9.4 8.6 8.7 9.9 9.4 9.4 9.4 7.8 8.5 7.8 7.9 9.0 8.5 8.5 8.6 7.1 7.7 7.1 7.1 8.1 7.7 7.7 7.7 6.3 6.9 6.3 6.4 7.3 6.9 6.9 6.9 5.6 6.1 5.6 5.7 6.4 6.1 6.1 6.
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OB307A2.qxp 03.2.19 4:02 PM Page 50 MUX-A20WV- E1 10 1.0 230V 8 0.8 7 0.7 6 0.6 25 30 (˚C) 20 60 70 (%) 50 Ambient temperature(˚C) Ambient humidity(%) Outdoor low pressure (kgf/F[Gauge]) 11 1.1 9 0.9 (kgf/F[Gauge])(MPa[Gauge]) Single operation (Unit B or C) 0.9 6.0 9 5.0 4.0 230V 3.0 2.0 25 30 (˚C) 20 60 70 (%) 50 Ambient temperature(˚C) Ambient humidity(%) 8 0.8 7 0.7 230V 6 0.6 5 0.5 4 0.
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03.2.19 4:02 PM 23.7 22.6 22.9 21.9 20.9 21.2 20.1 19.2 19.4 18.2 17.4 17.6 16.4 15.7 15.9 12.2 12.4 10.9 10.4 10.6 Page 51 12 class 13.9 14.1 09 class 14.6 12.8 07 class OB307A2.qxp 10-6. Capacity and input correction by inverter output frequency (OUTDOOR UNIT : MXZ-A18WV) NOTE 1 : Compressor running frequency at 33Hz (COOL) or 45Hz (HEAT).
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OB307A2.qxp 03.2.19 4:02 PM Page 52 10-7. Outdoor low pressure and outdoor unit current 1. 07-class unit in single operation (OUTDOOR UNIT : MXZ-A18WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). The converted score against the traditional unit system can be gotten according to the formula below. f • G) 1(MPa • G) =10.2(kgf/f (1) COOL operation 1.Set emergency switch to COOL or HEAT.
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OB307A2.qxp 03.2.19 4:02 PM Page 53 2. 09-class unit in single operation (OUTDOOR UNIT : MXZ-A18WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). The converted score against the traditional unit system can be gotten according to the formula below. f • G) 1(MPa • G) =10.2(kgf/f (1) COOL operation 1Both indoor and outdoor units are under the same temperature/humidity condition.
PAGE 54
OB307A2.qxp 03.2.19 4:02 PM Page 54 3. 12-class unit in single operation (OUTDOOR UNIT : MXZ-A18WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). The converted score against the traditional unit system can be gotten according to the formula below. f • G) 1(MPa • G) =10.2(kgf/f (1) COOL operation 1Both indoor and outdoor units are under the same temperature/humidity condition.
PAGE 55
OB307A2.qxp 03.2.19 4:02 PM Page 55 PERFORMANCE DATA COOL operation (230V) MSC-A07WV - E1 : MU-A07WV - E1 CAPACITY : 2.3(kW) SHF : 0.74 INPUT : 710(W) OUTDOOR DB(:) 21 25 27 30 INDOOR INDOOR DB(:) WB(:) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 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 2.39 1.44 0.
PAGE 56
OB307A2.qxp 03.2.19 4:02 PM Page 56 PERFORMANCE DATA COOL operation (230V) MSC-A07WV - E1 : MU-A07WV - E1 CAPACITY : 2.3(kW) SHF : 0.74 INPUT : 710(W) INDOOR INDOOR DB(:) WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32 NOTE 18 20 18 20 22 18 20 22 18 20 22 24 18 20 22 24 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 Q 2.25 2.37 2.
PAGE 57
OB307A2.qxp 03.2.19 4:02 PM Page 57 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 : MU-A09WV - E1 CAPACITY : 2.55(kW) SHF : 0.70 INPUT : 780(W) OUTDOOR DB(:) 21 25 27 30 INDOOR INDOOR DB(:) WB(:) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 3.00 1.56 0.52 624 2.87 1.49 0.52 655 2.75 1.43 0.52 686 2.65 1.38 0.52 718 21 20 3.12 1.25 0.40 655 3.00 1.20 0.40 694 2.91 1.16 0.40 710 2.81 1.12 0.40 741 22 18 3.00 1.68 0.56 624 2.87 1.61 0.56 655 2.75 1.54 0.56 686 2.65 1.49 0.
PAGE 58
OB307A2.qxp 03.2.19 4:02 PM Page 58 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 : MU-A09WV - E1 CAPACITY : 2.55(kW) SHF : 0.70 INPUT : 780(W) INDOOR INDOOR DB(:) WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32 NOTE 18 20 18 20 22 18 20 22 18 20 22 24 18 20 22 24 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 Q 2.50 2.63 2.
PAGE 59
OB307A3.qxp 03.2.19 4:05 PM Page 59 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 : MU-A12WV - E1 CAPACITY : 3.45(kW) SHF : 0.67 INPUT : 1140(W) 21 Q SHC SHF INPUT 18 4.05 1.99 0.49 912 20 4.23 1.56 0.37 958 18 4.05 2.15 0.53 912 20 4.23 1.73 0.41 958 22 4.40 1.28 0.29 992 18 4.05 2.31 0.57 912 20 4.23 1.90 0.45 958 22 4.40 1.45 0.33 992 18 4.05 2.47 0.61 912 20 4.23 2.07 0.49 958 22 4.40 1.63 0.37 992 24 4.62 1.16 0.25 1037 18 4.05 2.63 0.65 912 20 4.23 2.24 0.53 958 22 4.40 1.80 0.41 992 24 4.
PAGE 60
OB307A3.qxp 03.2.19 4:05 PM Page 60 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 : MU-A12WV - E1 CAPACITY : 3.45(kW) SHF : 0.67 INPUT : 1140(W) INDOOR INDOOR DB(:) WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32 NOTE Q 35 SHC SHF INPUT 18 3.38 1.66 0.49 20 3.55 1.31 0.37 18 3.38 1.79 0.53 20 3.55 1.46 0.41 22 3.76 1.09 0.29 18 3.38 1.93 0.57 20 3.55 1.60 0.45 22 3.76 1.24 0.33 18 3.
PAGE 61
OB307A3.qxp 03.2.19 4:05 PM Page 61 PERFORMANCE DATA COOL operation (230V) MSC-A07WV - E1 : MUH-A07WV - E1 CAPACITY : 2.3(kW) SHF : 0.74 INPUT : 710(W) OUTDOOR DB(:) 21 25 27 30 INDOOR INDOOR DB(:) WB(:) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 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 2.39 1.44 0.
PAGE 62
OB307A3.qxp 03.2.19 4:05 PM Page 62 PERFORMANCE DATA COOL operation (230V) MSC-A07WV - E1 : MUH-A07WV - E1 CAPACITY : 2.3(kW) SHF : 0.74 INPUT : 710(W) OUTDOOR DB(:) 35 40 Q SHC SHF INPUT Q SHC SHF INPUT Q 18 2.25 1.26 0.56 696 2.07 1.16 0.56 738 1.99 20 2.37 1.04 0.44 724 2.21 0.97 0.44 760 2.13 18 2.25 1.35 0.60 696 2.07 1.24 0.60 738 1.99 20 2.37 1.14 0.48 724 2.21 1.06 0.48 760 2.13 22 2.51 0.90 0.36 753 2.35 0.84 0.36 795 2.27 18 2.25 1.44 0.64 696 2.07 1.32 0.64 738 1.99 20 2.37 1.23 0.52 724 2.
PAGE 63
OB307A3.qxp 03.2.19 4:05 PM Page 63 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 : MUH-A09WV - E1 CAPACITY : 2.55(kW) SHF : 0.70 INPUT : 780(W) OUTDOOR DB(:) 21 25 27 30 INDOOR INDOOR DB(:) WB(:) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 3.00 1.56 0.52 624 2.87 1.49 0.52 655 2.75 1.43 0.52 686 2.65 1.38 0.52 718 21 20 3.12 1.25 0.40 655 3.00 1.20 0.40 694 2.91 1.16 0.40 710 2.81 1.12 0.40 741 22 18 3.00 1.68 0.56 624 2.87 1.61 0.56 655 2.75 1.54 0.56 686 2.65 1.49 0.
PAGE 64
OB307A3.qxp 03.2.19 4:05 PM Page 64 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 : MUH-A09WV - E1 CAPACITY : 2.55(kW) SHF : 0.70 INPUT : 780(W) OUTDOOR DB(:) 35 40 INDOOR INDOOR DB(:) WB(:) Q SHC SHF INPUT Q SHC SHF INPUT Q 21 18 2.50 1.30 0.52 764 2.30 1.19 0.52 811 2.21 21 20 2.63 1.05 0.40 796 2.45 0.98 0.40 835 2.36 22 18 2.50 1.40 0.56 764 2.30 1.29 0.56 811 2.21 22 20 2.63 1.16 0.44 796 2.45 1.08 0.44 835 2.36 22 22 2.78 0.89 0.32 827 2.60 0.83 0.32 874 2.51 23 18 2.50 1.50 0.60 764 2.
PAGE 65
OB307A3.qxp 03.2.19 4:05 PM Page 65 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 : MUH-A12WV - E1 CAPACITY : 3.40(kW) SHF : 0.67 INPUT : 1060(W) INDOOR INDOOR DB(:) WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32 NOTE Q 21 SHC SHF INPUT 18 4.00 1.96 0.49 20 4.17 1.54 0.37 18 4.00 2.12 0.53 20 4.17 1.71 0.41 22 4.34 1.26 0.29 18 4.00 2.28 0.57 20 4.17 1.87 0.45 22 4.34 1.43 0.
PAGE 66
OB307A3.qxp 03.2.19 4:05 PM Page 66 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 : MUH-A12WV - E1 CAPACITY : 3.40(kW) SHF : 0.67 INPUT : 1060(W) 35 INDOOR INDOOR DB(:) WB(:) Q SHC SHF 21 18 3.33 1.63 0.49 21 20 3.50 1.30 0.37 22 18 3.33 1.77 0.53 22 20 3.50 1.44 0.41 22 22 3.71 1.07 0.29 23 18 3.33 1.90 0.57 23 20 3.50 1.58 0.45 23 22 3.71 1.22 0.33 24 18 3.33 2.03 0.61 24 20 3.50 1.72 0.49 24 22 3.71 1.37 0.37 24 24 3.91 0.98 0.25 25 18 3.33 2.17 0.65 25 20 3.50 1.86 0.53 25 22 3.71 1.52 0.
PAGE 67
OB307A3.qxp 03.2.19 4:05 PM Page 67 PERFORMANCE DATA HEAT operation (230V) MSC-A07WV - E1 : MUH-A07WV - E1 CAPACITY : 2.5 kW INPUT : 690 W INDOOR DB(;) 15 21 26 OUTDOOR WB(;) -10 -5 0 5 10 15 20 Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT 1.58 449 1.90 538 2.23 607 2.55 656 2.88 697 3.18 718 3.50 731 1.50 483 1.80 573 2.13 635 2.43 683 2.75 718 3.05 738 3.36 766 1.35 518 1.68 607 1.98 669 2.30 718 2.63 752 2.93 773 3.25 794 MSC-A09WV - E1 : MUH-A09WV - E1 CAPACITY : 3.
PAGE 68
OB307A3.qxp 03.2.19 4:05 PM Page 68 PERFORMANCE DATA COOL operation (230V) MSC-A07WV - E1 (Single) : MUX-A10WV - E1 CAPACITY : 2.4(kW) SHF : 0.74 INPUT : 760(W) 21 Q SHC SHF INPUT 21 18 2.82 1.58 0.56 608 21 20 2.94 1.29 0.44 638 22 18 2.82 1.69 0.60 608 22 20 2.94 1.41 0.48 638 22 22 3.06 1.10 0.36 661 23 18 2.82 1.80 0.64 608 23 20 2.94 1.53 0.52 638 23 22 3.06 1.22 0.40 661 24 18 2.82 1.92 0.68 608 24 20 2.94 1.65 0.56 638 24 22 3.06 1.35 0.44 661 24 24 3.22 1.03 0.32 692 25 18 2.82 2.03 0.
PAGE 69
OB307A3.qxp 03.2.19 4:05 PM Page 69 PERFORMANCE DATA COOL operation (230V) MSC-A07WV - E1 (Single) : MUX-A10WV - E1 CAPACITY : 2.4(kW) SHF : 0.74 INPUT : 760(W) INDOOR INDOOR DB(:) WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32 NOTE 18 20 18 20 22 18 20 22 18 20 22 24 18 20 22 24 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 Q 2.
PAGE 70
OB307A3.qxp 03.2.19 4:05 PM Page 70 PERFORMANCE DATA COOL operation (230V) MSC-A07WV - E1 (Single : Room B) : MUX-A19WV - E1 CAPACITY : 2.4(kW) SHF : 0.
PAGE 71
OB307A3.qxp 03.2.19 4:05 PM Page 71 PERFORMANCE DATA COOL operation (230V) MSC-A07WV - E1 (Single : Room B) : MUX-A19WV - E1 CAPACITY : 2.4(kW) SHF : 0.
PAGE 72
OB307A3.qxp 03.2.19 4:05 PM Page 72 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 (Single : Room A) : MUX-A19WV - E1 CAPACITY : 3.5(kW) SHF : 0.
PAGE 73
OB307A3.qxp 03.2.19 4:05 PM Page 73 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 (Single : Room A) : MUX-A19WV - E1 CAPACITY : 3.5(kW) SHF : 0.
PAGE 74
OB307A3.qxp 03.2.19 4:05 PM Page 74 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 (Single : Room A) : MUX-A20WV - E1 CAPACITY : 2.6(kW) SHF : 0.75 INPUT : 850(W) OUTDOOR DB(:) 21 25 27 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q 18 3.06 1.74 0.57 680 2.93 1.67 0.57 714 2.81 1.60 0.57 748 2.70 20 3.19 1.43 0.45 714 3.06 1.37 0.45 757 2.96 1.33 0.45 774 2.86 18 3.06 1.86 0.61 680 2.93 1.78 0.61 714 2.81 1.71 0.61 748 2.70 20 3.19 1.56 0.49 714 3.06 1.50 0.49 757 2.96 1.45 0.49 774 2.
PAGE 75
OB307A3.qxp 03.2.19 4:05 PM Page 75 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 (Single : Room A) : MUX-A20WV - E1 CAPACITY : 2.6(kW) SHF : 0.75 INPUT : 850(W) 35 Q SHC SHF INPUT 18 2.55 1.45 0.57 833 20 2.68 1.21 0.45 867 18 2.55 1.55 0.61 833 20 2.68 1.31 0.49 867 22 2.83 1.05 0.37 901 18 2.55 1.66 0.65 833 20 2.68 1.42 0.53 867 22 2.83 1.16 0.41 901 18 2.55 1.76 0.69 833 20 2.68 1.53 0.57 867 22 2.83 1.28 0.45 901 24 2.99 0.99 0.33 935 18 2.55 1.86 0.73 833 20 2.68 1.63 0.61 867 22 2.
PAGE 76
OB307A3.qxp 03.2.19 4:05 PM Page 76 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 (Single : Room B) : MUX-A20WV - E1 CAPACITY : 2.9(kW) SHF : 0.
PAGE 77
OB307A3.qxp 03.2.19 4:05 PM Page 77 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 (Single : Room B) : MUX-A20WV - E1 CAPACITY : 2.9(kW) SHF : 0.
PAGE 78
OB307A3.qxp 03.2.19 4:05 PM Page 78 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 (Single) : MUX-A25WV - E1 CAPACITY : 3.5(kW) SHF : 0.73 INPUT : 1340(W) INDOOR INDOOR DB(:) WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32 NOTE 18 20 18 20 22 18 20 22 18 20 22 24 18 20 22 24 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 Q 4.
PAGE 79
OB307A3.qxp 03.2.19 4:05 PM Page 79 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 (Single) : MUX-A25WV - E1 CAPACITY : 3.5(kW) SHF : 0.73 INPUT : 1340(W) INDOOR INDOOR DB(:) WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32 NOTE 18 20 18 20 22 18 20 22 18 20 22 24 18 20 22 24 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 18 20 22 24 26 Q 3.
PAGE 80
OB307A3.qxp 03.2.19 4:05 PM Page 80 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 (Single : Room C ) : MUX-A26WV - E1 CAPACITY : 2.75(kW) SHF :0.73 INPUT : 1050(W) 21 Q SHC SHF INPUT 18 3.23 1.76 0.55 840 20 3.37 1.43 0.43 882 18 3.23 1.89 0.59 840 20 3.37 1.57 0.47 882 22 3.51 1.21 0.35 914 18 3.23 2.02 0.63 840 20 3.37 1.70 0.51 882 22 3.51 1.35 0.39 914 18 3.23 2.15 0.67 840 20 3.37 1.84 0.55 882 22 3.51 1.49 0.43 914 24 3.69 1.12 0.31 956 18 3.23 2.28 0.71 840 20 3.37 1.97 0.59 882 22 3.
PAGE 81
OB307A3.qxp 03.2.19 4:05 PM Page 81 PERFORMANCE DATA COOL operation (230V) MSC-A09WV - E1 (Single : Room C ) : MUX-A26WV - E1 CAPACITY : 2.75(kW) SHF : 0.73 INPUT : 1050(W) 35 Q SHC SHF 18 2.70 1.47 0.55 20 2.83 1.20 0.43 18 2.70 1.58 0.59 20 2.83 1.32 0.47 22 3.00 1.03 0.35 18 2.70 1.68 0.63 20 2.83 1.43 0.51 22 3.00 1.15 0.39 18 2.70 1.79 0.67 20 2.83 1.54 0.55 22 3.00 1.27 0.43 24 3.16 0.96 0.31 18 2.70 1.90 0.71 20 2.83 1.66 0.59 22 3.00 1.39 0.47 24 3.16 1.09 0.35 18 2.70 2.01 0.75 20 2.83 1.
PAGE 82
OB307A3.qxp 03.2.19 4:05 PM Page 82 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 (Single : Room A) : MUX-A26WV - E1 CAPACITY : 3.4(kW) SHF : 0.
PAGE 83
OB307A3.qxp 03.2.19 4:05 PM Page 83 PERFORMANCE DATA COOL operation (230V) MSC-A12WV - E1 (Single : Room A) : MUX-A26WV - E1 CAPACITY : 3.4(kW) SHF : 0.
PAGE 84
OB307A3.qxp 11 03.2.19 4:05 PM Page 84 MICROPROCESSOR CONTROL MSC-A07WV - E1 MSC-A09WV - E1 MSC-A12WV - E1 MU-A07WV - E1 MU-A09WV - E1 MU-A12WV - E1 MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 MUX-A10WV - E1 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 Once the operation mode are set, the same operation mode can be repeated by simply turning the OPERATE/STOP (ON/OFF) button ON. Indoor unit receives the signal with a beep tone.
PAGE 85
03.2.19 4:05 PM Page 85 3. Coil frost prevention ① Temperature control When the indoor coil thermistor RT12 reads 4°C or below(MSC-A07/A09WV) / 0°C or below(MSC-A12WV) for 5 minutes, the coil frost prevention mode starts. The indoor fan operates at the set speed and the compressor stops for 5 minutes. After that, if RT12 still reads below 4°C (MSC-A07/A09WV) / 0°C (MSC-A12WV), this mode is prolonged until the RT12 reads over 4°C (MSC-A07/A09WV) / 0°C (MSC-A12WV).
PAGE 86
OB307A3.qxp 03.2.19 4:05 PM Page 86 Operation time chart Example ON ON OFF OFF Thermostat ON ON Indoor fan OFF Outdoor fan Compressor OFF OFF ON ON ON OFF OFF ON 8 min. OFF 3 min. 4 min. 1 min. 4. Coil frost prevention The operation is as same as coil frost prevention during COOL operation.(Refer to 11-1.3.) However when coil frost prevention works while the indoor fan is OFF, its speed becomes set speed. 11-3.
PAGE 87
OB307A3.qxp 03.2.19 4:05 PM Page 87 (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 inHEAT mode. b.) When cold air prevention has been released. c.) When defrosting has been finished 2 When the temperature of indoor coil thermistor RT12 is less than 37°C. When warm air control works, the fan speed changes as follows to blow out warm air gradually.
PAGE 88
OB307A3.qxp 03.2.19 4:05 PM Page 88 4. Defrosting Defrosting of outdoor heat exchanger is controlled by DEICER P.C. board, with detection by the defrost thermistor RT61. (1) Starting conditions of defrost When all conditions of a) ~ c) are satisfied, the defrosting operation starts. a) The compressor cumulative operation time exceeds 40 minutes without the defrosting operation working. b) RT61 reads - 3°C or less.
PAGE 89
OB307A4.qxp 03.2.19 4:10 PM Page 89 5. R.V. coil control Heating · · · · · ON Cooling · · · · · OFF Dry · · · · · · · · OFF When operation starts, the 4-way valve reverses for 5 seconds right before start-up of the compressor. Operation time chart (COOL/DRY) (HEAT) 5 sec. 5 sec. ON OFF R.V. coil ON OFF ON OFF Outdoor fan ON OFF ON OFF Compressor 11-5. “I FEEL CONTROL” ( ON OFF ) OPERATION (1) Press OPERATE/STOP(ON/OFF) button.
PAGE 90
OB307A4.qxp 03.2.19 4:10 PM Page 90 (4) The initial set temperature is decided by the initial room temperature.
PAGE 91
OB307A4.qxp 03.2.19 4:10 PM Page 91 11-6. FAN MOTOR CONTROL (1) Rotational frequency feedback control The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the microprocessor to feedback the rotational frequency. Comparing the current rotational frequency with the target rotational frequency (High,Med.,Low), the microprocessor controls SR141 and adjusts fan motor electric current to make the current rotational frequency close to the target rotational frequency.
PAGE 92
OB307A4.qxp 03.2.19 4:10 PM Page 92 (7) Cold air prevention in HEAT operation When any of the following conditions occurs in HEAT operation, the horizontal vane angle changes to Angle 1 automatically to prevent cold air blowing on users. ① Compressor is not operating. ➁ Defrosting is performed. ➂ Indoor coil thermistor RT12 reads 24: or below. ➃ Indoor coil thermistor RT12 temperature is raising from 24°C or below, but it does not exceed 28:.
PAGE 93
OB307A4.qxp 03.2.19 4:10 PM Page 93 (4) Press HR. and MIN. button to set the timer. Time setting is 10-minute units. HR. and MIN. button will work when “ ” or “ ” mark is flashing. These marks disappear in 1 minute. After setting the ON timer, check that OPERATION INDICATOR lamp of the indoor unit lights.
PAGE 94
OB307A4.qxp 03.2.19 4:10 PM Page 94 11-10.
PAGE 95
OB307A4.qxp 03.2.19 4:10 PM Page 95 11-11 INVERTER MULTI SYSTEM CONTROL MXZ-18WV - E1 Output signal Input signal Compressor power factor Indoor unit microprocessor Compressor primary current Compressor secondary current Outdoor unit control microprocessor Drive circuit SSR61 Transistor module Fin temperature thermistor RT65 Comp. Discharge temperature thermistor RT61 Gas pipe temperature thermistor RT6B x 61 x 62 R. V.
PAGE 96
OB307A4.qxp 03.2.19 4:10 PM Page 96 11-11-1. INVERTER MAIN POWER SUPPLY CIRCUIT NOISE FILTER P.C.BOARD L POWER SUPPLY R64A/R64B L61/L62 ELECTRONIC CONTROL P.C. BOARD DS61/DS62 + L AFM + X64 N CT61 IPM P U V N W CT761 U V MC W L63 11-11-2. Outline of main power supply circuit 1. At the start of operation Rush current is generated the instant the electricity is turned on to the main power supply circuit to operate the compressor.
PAGE 97
OB307A4.qxp 03.2.19 4:10 PM Page 97 5. IPM Six power transistors that outputs the direct current waveform as three-phase alternating current waveform, the driving circuit which operates the power transistors, and the overcurrent detecting circuit which protects the power transistors are built into the IPM. It can simplify and miniaturize the control circuit. 6.
PAGE 98
OB307A4.qxp 03.2.19 4:10 PM Page 98 11-13 LEV control Linear expansion valve (LEV) is controlled by "Thermostat ON" commands given from each unit. LEV opening Opening before stop ➝ 500 pulse in 15 minutes COOL : 5 pulse (full closed) HEAT : 59 pulse (slightly opened) Indoor unit status Stop of all indoor unit When outdoor unit is operating, some indoor units stop and some operate. When the outdoor unit operates (When the other indoor unit operates): 5 pulse. When outdoor unit stops.
PAGE 99
OB307A4.qxp 03.2.
PAGE 100
OB307A4.qxp 03.2.19 4:10 PM Page 100 (3) LEV opening correction by discharge temperature When LEV correction output is 0 pulse by the suction super heat at COOL or DRY operation, or HEAT operating, correct LEV is corrected according to the following table. The target discharge temperature is determined according to frequency zone and number of operation unit of the compressor.
PAGE 101
OB307A4.qxp 03.2.19 4:10 PM Page 101 11-16.Discharge temperature protection control This protection controls the compressor ON/OFF and operation frequency according to temperature of the discharge temp. thermistor. (1) Compressor ON/OFF When temperature of the discharge temp. thermistor exceeds 116;, the control stops the compressor. When temperature of the discharge temp. thermistor is 80; or less, the controls starts the compressor.
PAGE 102
OB307A4.qxp 12 03.2.19 4:11 PM Page 102 SERVICE FUNCTIONS MSC-A07WV - E1 MSC-A09WV - E1 MSC-A12WV - E1 MU-A07WV - E1 MU-A09WV - E1 MU-A12WV - E1 MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 MUX-A10WV - E1 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 MXZ-A18WV - E1 12-1. COMPULSORY DEFROSTING MODE FOR SERVICE By short circuit of the connector JPDS and JPSG on the outdoor deicer P.C.
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03.2.19 4:11 PM Page 103 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 indoor unit once they are set. The setting will be cancelled if the breaker has turned off, or the power supply has shut down.
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OB307A4.qxp 03.2.19 4:11 PM Page 104 NOTE •The operation settings are memorized when 10 seconds have passed after the remote controller was operated. •If main power is cut while AUTO START/STOP timer is active, the timer setting is cancelled. •If the unit has been off with the remote controller before power failure, the auto restart function does not work as the power button of the remote controller is off.
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OB307A4.qxp 03.2.19 4:11 PM Page 105 13-2. Instruction of troubleshooting MSC-A07WV - E1 MSC-A09WV - E1 MSC-A12WV - E1 MU-A07WV - E1 MU-A09WV - E1 MU-A12WV - E1 MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 MUX-A10WV - E1 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 Start Indoor unit operates. Outdoor unit doesn't operate normally. Indoor unit operates. Outdoor unit doesn't operate. Indoor unit doesn't receive the signal from remote controller.
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OB307A4.qxp 03.2.19 4:11 PM Page 106 MXZ-A18WV - E1 Operation start Check the outdoor unit LED indicator. OFF J Check of power supply See page 119. • Indoor unit serial signal error K Check of serial signal See page 119. LED 1 or LED 2 has blinked. Both LED 1 and LED 2 lighting • COOL or HEAT operation only L Check of R.V.coil See page 120. Refer to indicator list on page 108, 109. • When cooling, heat exchanger of non-operating indoor unit frosts.
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OB307A4.qxp 03.2.19 4:11 PM Page 107 13-3. Troubleshooting check table • The following indication does not depend on the shape of lamp. flashing Operation Indicator · Flashing of the OPERATION INDICATOR lamp (on the left-hand side) indicates possible abnormalities. · The OPERATION INDICATOR lamp (on the left-hand side) is lighting during normal operation. ❈ Before taking measures, make sure that the symptom reappears, for accurate troubleshooting. Self check table NO.
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OB307A4.qxp 03.2.19 4:11 PM Page 108 MXZ-A18WV - E1 LED 1 (Red) Lighting LED 2 (Yellow) Lighting Error mode Normal Symptom: Outdoor unit does not operate. Indication LED 1 LED 2 (Red) (Yellow) Abnormal point Detecting method Check points Lighting Once Indoor unit and LEV When the drain abnormality is detected in the indoor unit and the indoor • Check the abnormality indication on the indoor unit.
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03.2.19 4:11 PM Page 109 Symptom: Outdoor unit operates (The compressor operates at reduced frequency) Indication LED 1 LED 2 (Red) (Yellow) Abnormal point Detecting method Check points Once Lighting Current protection Twice Lighting High pressure protection When indoor pipe temperature exceeds 55˚C during heating. Twice Lighting Defrosting in cooling When indoor pipe temperature falls to 6˚C or below during cooling.
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OB307A4.qxp 03.2.19 4:11 PM MU-A07WV - E1 MU-A09WV - E1 MU-A12WV - E1 Page 110 MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 Check method and criterion Part name Measure the resistance with a tester. (Part temperature –10°C ~ 40°C) Normal Defrost thermistor (RT63) Abnormal MUH-A07/A09/A12WV Figure Open or short-circuit 5kΩ ~ 60kΩ Measure the resistance between the terminals with a tester.
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OB307A4.qxp 03.2.19 4:11 PM Page 111 MUX-A10WV - E1 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 Part name Figure Check method and criterion Measure the resistance between the terminals with a tester.
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OB307A4.qxp 03.2.19 4:11 PM Page 112 When OPERATION INDICATOR lamp flashes 3-time. Indoor fan motor doesn’t operate. A Check of indoor fan motor Turn OFF the power supply. Check connector CN211 visually. No Reconnect the lead wires. Yes Is soldered point of the connector correctly soldered? Are lead wires connected? No Resolder it. Yes Disconnect lead wires from connector CN211 on indoor electronic control P.C. board. Measure resistance between lead wires No.1 and No.5 and then No.3 and No.5.
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OB307A4.qxp 03.2.19 4:11 PM Page 113 The unit doesn’t operate with the remote controller. Also, the OPERATION INDICATOR lamp doesn’t light up by pressing the EMERGENCY OPERATION switch. 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. Turn OFF the power supply. Remove indoor fan motor connector CN211 and vane motor connector CN151 from the indoor electronic control P.C. board and turn ON the power supply.
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OB307A4.qxp 03.2.19 4:11 PM Page 114 Compressor and/or outdoor fan doesn’t operate. D Check of outdoor unit Start Is there 230V AC between L - N on the TB1 of outdoor unit? Yes Press the EMERGENCY OPEERATION switch of all indoor units. No 3 minutes later, is there 12V DC between 1 - 2 on the all terminal blocks of outdoor unit? No Check the power supply and connecting wire. Is there 12V DC between 1 - 2 on the terminal block of each indoor unit? No Check the indoor unit.
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OB307A4.qxp 03.2.19 4:11 PM Page 115 Compressor and/or outdoor fan motor doesn’t stop. E Check of outdoor unit Start Turn OFF the power supply. After 1 minute, turn ON power supply again. Does compressor or outdoor fan motor stop? No Yes Is there 12V DC between 1–2 on the outdoor terminal block (TB2)? Yes No Is there 230V AC between COM on the Yes compressor contactor (52C) and N on the outdoor terminal block (TB1)? No Replace the indoor electoronic control P.C. board.
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OB307A4.qxp 03.2.19 4:11 PM Page 116 Unit operates COOL mode even if it is set to HEAT mode. w First, measure the resistance of R.V. coil to confirm it is disconnected or is not short-circuit. F Check of R.V. coil Turn ON the power supply and operate the indoor unit in HEAT mode by pressing the EMERGENCY OPERATION switch. After 3 minutes, does the unit operate in COOL mode? No OK Yes Is there 230V AC between CN7211 – 2 on the deicer P.C. board? No Replace the deicer P.C.
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OB307A4.qxp 03.2.19 4:11 PM Page 117 When OPERATION INDICATOR lamp flashes 0.5-second intervals or 1-time. Outdoor unit does not operate. G How to check mis-wiring and serial signal error w 1 Set the switch(SW2-2) on indoor electronic control P.C. board to MU or MUX type, when the outdoor unit is MU or MUX type. If the setting is MUH or MXZ type, the unit does not work. Start w 2 Short circuit of JPG and JPS on the indoor electronic control P.C.
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OB307A4.qxp 03.2.19 4:11 PM Page 118 When OPERATION INDICATOR lamp flashes 6-time. Thermistors in the outdoor unit are abnormal. H Check of outdoor thermistor Start Replace the deicer P.C. board. Defrost thermistor (RT61) Measure resistance between CN 661 1 and 2. Turn OFF the power supply. Is the resistance of thermistor normal? Yes No Reconnect CN661. Turn ON the power supply and press the EMERGENCY OPERATION switch.
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OB307A4.qxp 03.2.19 4:11 PM Page 119 Outdoor unit does not operate. (LED display: display OFF) J Check of power supply Start Check the connecting of main circuit parts . Turn on power supply Is there voltage of 230V AC in the power supply terminal block? No Check the power supply cable. Yes Is there voltage of 230V AC across the input terminal part in the diode module (TAB61 and TAB62)? No Is fuse (F61) blown? No Replace the noise filter P. C.
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OB307A4.qxp 03.2.19 4:11 PM Page 120 The cooling operation or heating operation does not operate. (LED display: Both LED1 and LED2 lighting) L Check of R. V. coil • When heating operation does not work. Start 1. Disconnect the lead wire leading to the compressor. 2. 3 minutes after turning on the power supply, start EMERGENCY OPERATION in HEAT mode. Is there voltage of 230V AC between pin1 and pin 2 at connector CN912? No Yes Turn off power supply of indoor and outdoor unit.
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OB307A5.qxp 03.2.19 4:13 PM Page 121 • When cooling, heat exchanger of non-operating indoor unit frosts. • When heating, non-operating indoor unit get warm. M Check of LEV LED display: Start LED1 Lighting 6 time LED2 Lighting Goes out Turn on power supply to the outdoor unit after checking LEV coil is mounted to the LEV body securely.
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OB307A5.qxp 03.2.19 4:13 PM Page 122 • When thermistor is abnormal. (When the LED display is a table below.) O Check of outdoor unit thermistor Start Abnormal Disconnect the connector in the outdoor electronic control P. C. board (see below table), and measure the resistance of thermistor to check whether the thermistor is normal or not. Replace the thermistor Normal Reconnect the connector (CN661, CN662 and CN663) and disconnect the lead wire leading to the compressor.
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OB307A5.qxp 03.2.19 4:13 PM Page 123 Q The other cases 1 Indoor unit dose not operate. (different modes) • When you try to run two indoor unit simultaneously, one for cooling and the other for heating, the unit which transmits signal to the outdoor units earlier decides the operation mode. The other unit indicates as shown in the figure below. • When the above situation occurs, set all the indoor units to the same mode, turn OFF the indoor units, and then turn them back ON.
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OB307A5.qxp 03.2.19 4:13 PM Page 124 TEST POINT DIAGRAM AND VOLTAGE MSC-A07WV - E1 MSC-A09WV - E1 MSC-A12WV - E1 Indoor electronic control P.C. board Fuse 250V AC 3.15A } 12V DC Indoor fan motor 230 V AC { +-- } Power supply input 230 V AC Varistor (NR11) R132 Indoor coil thermistor (RT12) Room temperature thermistor (RT11) } Timer short mode point JPG, JPS (Refer to page 102.) Emergency operation switch SW2 (Refer to page 1 sets the Auto restart function ON/ OFF.
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03.2.19 4:13 PM Page 125 Power supply input 230V AC } CN711 CN721 Outdoor fan motor R.V. coil 230V AC 230V AC } MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 Outdoor deicer P.C. board } OB307A5.qxp NR61 Varistor F61 Fuse 2A/250V + -- } R601 5~10VDC Defrost interval time short pin (JPDS, JPSG) (Refer to page 102.) } CN661 1-2 Defrost thermistor RT61 5V DC J205 + J101 -12V DC J204 + J101 -- 125 } Jumper wire for change in defrost setting (JRF,JRG) (Refer to page 102.
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OB307A5.qxp 03.2.19 4:14 PM Page 126 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 Outdoor control P.C.
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20 Resistance (k") Resistance (k") ( ( ( ( ( ( ( ( ( ( ( ( ( ( Gas pipe temperature A thermistor (RT6A) CN Gas pipe temperature B thermistor (RT6B) 661 10 100 40 127 90 100 110 120 80 70 60 50 40 30 20 10 0 0 Temperature(:) 10 20 30 40 50 60 70 80 Temperature(:) 200 20 0 300 60 30 0 0 -20 -10 0 10 20 30 40 Temperature(:) 400 80 40 ) Defrost temperature thermistor (RT62) Discharge temperature thermistor (RT61) CN Evaporation temperature thermistor (RT63) 662 High-press
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OB307A5.qxp 03.2.19 4:14 PM Page 128 MXZ-A18WV - E1 Outdoor Noise filter P.C.board F912 FUSE 3.15A/250V NR63 VARISTOR 230V AC 50Hz Input 230V AC 50Hz Output CN912 R.V.
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OB307A5.qxp 03.2.19 4:14 PM 14 Page 129 DISASSEMBLY INSTRUCTIONS <"Terminal with lock mechanism" Detaching points> In case of terminal with lock mechanism, detach the terminal as shown below. (1) (2) 1Slide the sleeve. 2Pull the terminal while pushing the locking lever. 1Hold the sleeve, and pull out the terminal slowly. 14-1. MSC-A07WV - E1 MSC-A09WV - E1 MSC-A12WV - E1 INDOOR UNIT NOTE : These photos are MS-A09WV. Other models are almost the same as MS-S09WV. OPERATING PROCEDURE PHOTOS 1.
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OB307A5.qxp 03.2.19 4:14 PM Page 130 OPERATING PROCEDURE PHOTOS 3. Removing the electrical box (1) (2) (3) (4) (5) (6) (7) Remove the front panel. (Refer to 1.) Remove the electrical cover. (Refer to 2.) Remove the V.A. clamp. (Refer to 2.) Remove the cord clamp. (Refer to 2.) Remove the terminal block. (Refer to 2.) Remove the screw of ground wire. (Refer to 2.
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OB307A5.qxp 03.2.19 4:14 PM Page 131 14-2. MU-A07WV - E1 MU-A09WV OUTDOOR UNIT MU-A12WV - E1 E1 OPERATING PROCEDURE PHOTOS 1. Removing the cabinet (1) (2) (3) (4) (5) Remove the Remove the Remove the Remove the Remove the the insides. (6) Remove the (7) Remove the screws of the top panel. screw of the service panel. screws of the cabinet. screws of the front panel and motor support. service panel, and remove the screw from Photo 1 Screws of the front panel and motor support top panel. cabinet.
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OB307A5.qxp 03.2.19 4:14 PM Page 132 OPERATING PROCEDURE PHOTOS 3. Removing the propeller fan and the outdoor fan motor Photo 5 Lead clamps (1) Remove the cabinet. (Refer to 1.) (2) Remove the propeller fan nut. (3) Remove the propeller fan. NOTE : Loose the propeller fan in the rotating direction for removal. When attaching the propeller fan, align the mark on the propeller fan and the motor shaft cut section.
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OB307A5.qxp 03.2.19 4:14 PM Page 133 14-3. MUH-A07WV - E1 MUH-A09WV OUTDOOR UNIT E1 MUH-A12WV - OPERATING PROCEDURE PHOTOS 1. Removing the cabinet (1) (2) (3) (4) (5) Remove the Remove the Remove the Remove the Remove the the insides. (6) Remove the (7) Remove the E1 Photo 1 Screws of the front panel and motor support screws of the top panel. screw of the service panel. screws of the cabinet. screws of the front panel and motor support. service panel, and remove the screw from top panel.
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OB307A5.qxp 03.2.19 4:14 PM Page 134 OPERATING PROCEDURE PHOTOS 3. Removing the propeller fan and the outdoor fan motor (1) Remove the cabinet. (Refer to 1.) (2) Remove the propeller fan nut. (3) Remove the propeller fan. NOTE : Loose the propeller fan in the rotating direction for removal. When attaching the propeller fan, align the mark on the propeller fan and the motor shaft cut section. Set the propeller fan in position by using the cut on the shaft and the mark on the propeller fan.
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OB307A5.qxp 03.2.19 4:14 PM Page 135 14-4. MUX-A10WV - E1 OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1. Removing the cabinet (1) (2) (3) (4) (5) Remove the Remove the Remove the Remove the Remove the the insides. (6) Remove the (7) Remove the screws of the top panel. screw of the service panel. screws of the cabinet. screws of the front panel and motor support. service panel, and remove the screw from Set screws of the front panel and motor support top panel. cabinet.
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OB307A5.qxp 03.2.19 4:14 PM Page 136 OPERATING PROCEDURE PHOTOS 3. Removing the propeller fan and the outdoor fan motor Photo 5 (1) Remove the cabinet. (Refer to 1.) (2) Remove the propeller fan nut. Screws of the (3) Remove the propeller fan. solenoid coil NOTE : Loose the propeller fan in the rotating direction for (21R) removal. When attaching the propeller fan, align the mark on the propeller fan and the motor shaft cut section.
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OB307A5.qxp 03.2.19 4:14 PM Page 137 14-5. MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 OUTDOOR UNIT NOTE : These photos are MUX-A20WV. Other models are almost the same as MUX-A20WV. OPERATING PROCEDURE PHOTOS 1.Removing the cabinet (1) (2) (3) (4) (5) (6) (7) (8) Remove Remove Remove Remove Remove Remove Remove Remove the the the the the the the the Photo 1 screws of the service panel. screws of the top panel. service panel. top panel. screws of the front panel. front panel.
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OB307A5.qxp 03.2.19 4:15 PM Page 138 OPERATING PROCEDURE PHOTOS 2. Removing the relay panel Photo 4 (1) Remove the cabinet. (Refer to 1) (2) Disconnect the following connectors. . Outdoor fan motor . Only MUX-20WV Solenoid coil (21RB, 21R3, 21R4) .
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OB307A5.qxp 03.2.19 4:15 PM Page 139 OPERATING PROCEDURE PHOTOS 5. Removing the compressor (A, B) Photo 5 (1) Remove the cabinet. (Refer to 1.) (2) Remove the relay panel. (3) Remove the soundproof felt. (4) Remove the terminal cover on the compressor. (5) Disconnect lead wires from the compressor. (6) Recover gas from the refrigerant circuit. (7) Disconnect the welded part of the discharge pipe. (8) Disconnect the welded part of the suction pipe. (9) Remove nuts fixing the compressor.
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OB307A5.qxp 03.2.19 4:15 PM Page 140 14-6. MXZ-A18WV - E1 OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1. Removing the cabinet. Photo 1 1. Removing the cabinet. (1) Remove the screws of the top panel. (2) Remove the top panel. (3) Remove the screw of the service panel. (4) Remove the service panel. (5) Remove the screws of the front panel.
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OB307A5.qxp 03.2.19 4:15 PM Page 141 OPERATING PROCEDURE PHOTOS 3. Removing the Outdoor Electronic control P.C. board. Photo 4 (1) Remove the top panel, service panel and front panel. (2) Remove the connector coming out of the compressor. (3) Remove the compressor connector, compressor relay connector on the electronic control P.C. board side, terminal of reactor and terminals of TAB4 and X64 of the noise filter P.C. board coming out of the electronic control P.C. board. (Fig.
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OB307A5.qxp 03.2.19 4:15 PM Page 142 PHOTOS OPERATING PROCEDURE 5. Removing the thermistor Photo 7 Discharge temperature thermistor, defrost temperature, evaporator temperature, high pressure protector, gas pipe temperature A and gas pipe temperature B (1) Remove the top panel, service panel, front panel. (2) Remove Indoor/outdoor connecting wire and power supply cable. (3) Remove thermistor connector (CN661, CN662) from the electronic control P.C. board. (4) Remove the inverter assembly.
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OB307A5.qxp 03.2.19 4:15 PM Page 143 PHOTOS OPERATING PROCEDURE 6. Removing the compressor/4-way valve (1) Collect refrigerant from refrigerant circuit. Caution: If collecting has not been done enough, refrigerating machine oil may spout out or harmful substance may be generated during welding work. (2) Remove Indoor/outdoor connecting wire and power supply cable. (3) Remove the top panel, service panel, front panel and back panel. (4) Remove the inverter assembly.
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OB307A5.qxp 03.2.19 4:15 PM 15 Page 144 PARTS LIST MSC-A07WV - E1 (WH) MSC-A09WV - E1 (WH) MSC-A12WV - E1 (WH) 15-2. ACCESSORY AND REMOTE CONTROLLER 15-1. INDOOR UNIT STRUCTURAL PARTS 1 (W) 11 10(W) 12 9 2 8 (See page 127.) 3 7 (See page 127.) 4 5 6 (W) (W) These figures show about MSC-A12WV. 15-1. INDOOR UNIT STRUCTURAL PARTS Q'ty/unit Symbol No. Part No.
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OB307A5.qxp 03.2.19 4:15 PM Page 145 MSC-A07WV - E1 (WH) MSC-A09WV - E1 (WH) MSC-A12WV - E1 (WH) 15-4. INDOOR UNIT HEAT EXCHANGER 15-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS 19 SLEEVE BEARING 18 21 (W) 16 17 15 2 1 ROOM TEMPERATURE THERMISTOR 3 13 12 22 14 4 11 23 5 FUSE 6 VARISTOR 7 (W)These figures show about MSC-A12WV. 8 9 10 15-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS Part number that is circled is not shown in the illustration. No.
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OB307A5.qxp 03.2.19 4:15 PM Page 146 MU-A07WV - E1 MU-A09WV - E1 MU-A12WV - E1 15-5. OUTDOOR UNIT STRUCTURAL PARTS 12 11 10 9 1 2 3 5 4 6 7 8 Part number that is circled is not shown in the illustration. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Part No.
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OB307A5.qxp 03.2.19 4:15 PM MU-A07WV - E1 Page 147 MU-A09WV - E1 MU-A12WV - E1 15-6. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS 5 6 1 3 2 4 Part numbers that are circled are not shown in the illustration. No. 1 2 3 4 5 6 7 8 Part No.
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OB307A5.qxp 03.2.19 4:15 PM Page 148 MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 15-7. OUTDOOR UNIT STRUCTURAL PARTS 1 13 12 11 2 3 10 4 5 6 Part numbers that are circled are not shown in the illustration. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Part No.
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OB307A5.qxp 03.2.19 4:15 PM Page 149 MUH-A07WV - E1 MUH-A09WV - E1 MUH-A12WV - E1 15-9. ACCESSORY 15-8. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS 7 8 2 1 3 13 12 6 5 4 15-8. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. No. 1 2 3 4 5 6 7 8 9 10 11 Part name Part No.
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OB307A5.qxp 03.2.19 4:15 PM Page 150 MUX-A10WV - E1 15-10. OUTDOOR UNIT STRUCTURAL PARTS 12 11 9 10 1 2 3 13 14 15 4 5 6 7 8 Part numbers that are circled are not shown in the illustration. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Part No.
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OB307A6.qxp 03.2.19 4:23 PM Page 151 MUX-A10WV - E1 15-11. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS 11 9 8 10 B A 2 1 No. 1 2 3 4 5 6 7 8 9 10 11 Part No.
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OB307A6.qxp 03.2.19 4:23 PM Page 152 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 15-12. OUTDOOR UNIT STRUCTURAL PARTS MUX-A26WV - E1 17 18 1 2 6 3 4 15 5 14 13 6 7 8 9 10 11 12 16 These figures show MUX-A20WV.
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OB307A6.qxp 03.2.19 4:23 PM Page 153 15-12. OUTDOOR UNIT STRUCTURAL PARTS Part numbers that are circled are not shown in the illustration. Symbol No. Part No.
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OB307A6.qxp 03.2.19 4:23 PM Page 154 MUX-A19WV - E1 MUX-A20WV - E1 MUX-A25WV - E1 MUX-A26WV - E1 15-13. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS 9 10 1 8 7 6 2 B 5 A 3 4 Part numbers that are circled are not shown in the illustration. Symbol No. Part No. Part Name in Wiring Diagram E02 1 E02 2 E02 E02 E02 3 E02 E02 4 756 726 214 756 757 758 759 301 301 501 444 444 444 444 OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR PROPELLER FAN OUTDOOR CONTROL P.C. BOARD OUTDOOR CONTROL P.C.
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OB307A6.qxp 03.2.19 4:23 PM Page 155 MXZ-A18WV - E1 15-14. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS 9 13 12 7 8 15-15. ACCESSORY 1 2 3 4 5 6 15-14. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS Part numbers that are circled are not shown in the illustration. Symbol No. Parts No. Parts Name in Wiring Diagram Q'ty / unit MXZ-A18WV1 1 E02 735 337 REACTOR 2 E02 735 444 NOISE FILTER P.C.
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OB307A6.qxp 03.2.19 4:23 PM Page 156 MXZ-A18WV - E1 15-16. OUTDOOR UNIT FUNCTIONAL PARTS AND STRUCTURAL PARTS 20 18 17 16 19 14 13 15 12 11 10 9 1 3 2 4 5 6 7 8 Part numbers that are circled are not shown in the illustration. Symbol No. Parts No.
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OB307A6.qxp 03.2.19 4:23 PM Page 157 15-17. AIR CLEANING FILTER ● AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means of static electricity. ● Normal life of AIR CLEANING FILTER is 4 months. However, when it becomes dirty, replace it as soon as possible. ● Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet. ● DO NOT reuse AIR CLEANING FILTER even if it is washed. ● DO NOT remove or attach AIR CLEANING FILTER during unit operation.
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OB307A6.qxp 03.2.19 4:23 PM Page 158 HEAD OFFICE: MITSUBISHI DENKI BLDG.,2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN C Copyright 2002 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD Distributed in Feb. 2003. No.OB307 REVISED EDITION-A 17 Distributed in Dec. 2002. No.OB307 17 Made in Japan New publication, effective Feb. 2003 Specifications subject to change without notice.