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Table of Contents
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SERVICE MANUAL
Wireless type
Models
MSZ-A09YV -
MSZ-A12YV -
Indication of model name
MSZ-A09YV -
MSZ-A12YV -
NOTE:
This service manual describes technical data of the indoor units.
•Refer to the service manual OB328 when MSZ-A09YV-
with MUZ-A09YV-
•Refer to the service manual OB319 when MSZ-A09YV-
with MXZ-A18WV-
(WH)
E1
(WH)
E1
E1
E1
, MUZ-A12YV-
, MUZ-A09YVH-
E1
E1
, MXZ-A26WV-
or MXZ-A32WV-
E1
E1
CONTENTS
1. PART NAMES AND FUNCTIONS······················2
2. SPECIFICATION·················································4
3. NOISE CRITERIA CURVES ·······························5
4. OUTLINES AND DIMENSIONS ·························6
5. WIRING DIAGRAM ············································7
6. REFRIGERANT SYSTEM DIAGRAM ················7
7. SERVICE FUNCTIONS ······································8
8. TROUBLESHOOTING······································10
9. DISASSEMBLY INSTRUCTIONS ····················19
10. PARTS LIST······················································21
11. OPTIONAL PARTS ···········································23
or MSZ-A12YV-
is connected
E1
E1
or MUZ-A12YVH-
.
E1
E1
or MSZ-A12YV-
is connected
E1
E1
as multi system units.
E1
No. OB327
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Table of Contents
Related Manuals for Mitsubishi Electric MSZ-A09YV-E1WH
Summary of Contents for Mitsubishi Electric MSZ-A09YV-E1WH
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Page 1: Table Of Contents
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS No. OB327 SERVICE MANUAL Wireless type Models MSZ-A09YV - (WH) MSZ-A12YV - (WH) CONTENTS 1. PART NAMES AND FUNCTIONS······················2 2. SPECIFICATION·················································4 3. NOISE CRITERIA CURVES ·······························5 4. OUTLINES AND DIMENSIONS ·························6 5. WIRING DIAGRAM ············································7 6. -
Page 2: Part Names And Functions
PART NAMES AND FUNCTIONS INDOOR UNIT MSZ-A09YV - MSZ-A12YV - Front panel Air cleaning filter (white bellows type) Air inlet Heat exchanger to Breaker Panel Catechin air filter Power supply cord (With deodorizer) Remote control receiving section Air outlet Vertical vanes Line flow fan Remote controller Horizontal vane... - Page 3 MSZ-A09YV - MSZ-A12YV - Signal transmitting section Operation display section OPERATE /STOP (ON /OFF) button ON/OFF WARM COOL TEMPERATURE buttons Indication of remote controller model Open the front lid. ˚C CLOCK AMPM ON/OFF WARM COOL FAN SPEED CONTROL button VANE CONTROL button STOP I FEEL OFF-TIMER button...
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Page 4: Specification
SPECIFICATION Indoor model MSZ-A09YV - MSZ-A12YV - Function Cooling Cooling Heating Heating Single phase Single phase Power supply 230V,50Hz 230V,50Hz Air flow(High/Med. W /Low W ) Capacity K /h 504/360W/222W 564/402W/246W 630/462W/288W 642/474W/312W Power outlet Running current 0.17 0.19 Power input Rated frequency Auxiliary heater A(kW) —... -
Page 5: Noise Criteria Curves
NOISE CRITERIA CURVES MSZ-A09YV - MSZ-A12YV - FAN SPEED FUNCTION SPL(dB(A)) LINE FAN SPEED FUNCTION SPL(dB(A)) LINE COOLING COOLING High High HEATING HEATING Test conditions, Test conditions, Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19: Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19: Heating : Dry-bulb temperature 20: Wet-bulb temperature 15: Heating : Dry-bulb temperature 20: Wet-bulb temperature 15: NC-70... -
Page 6: Outlines And Dimensions
OUTLINES AND DIMENSIONS MSZ-A09YV - Unit : mm INDOOR UNIT 81.5 133.5 Installation plate Indoor unit 81.5 81.5 Wall hole Air in Installation plate Liquid line 6.35-0.5m Gas line 9.52-0.43m Insulation 37 O.D 21 I.D Power supply cord Drain hose Lead to right 1.0m (Connected part O,D) Lead to left 0.3m... -
Page 7: Wiring Diagram
WIRING DIAGRAM MSZ-A09YV - MSZ-A12YV - MODELS WIRING DIAGRAM INDOOR UNIT RT13 TO OUTDOOR UNIT RT12 CONNECTING RT11 CN201 NR11 230V~ SR141 SR142 LD103 CN211 ELECTRONIC CONTROL P.C. BOARD POWER SUPPLY CORD ~/N 230V POWER MONITOR FOR MXZ type 50Hz SAFETY RECEIVER DEVICE (FAN) -
Page 8: Service Functions
SERVICE FUNCTIONS MSZ-A09YV - MSZ-A12YV - 7-1. TIMER SHORT MODE For service, set time can be shortened by short circuit of JPG and JPS the electronic control P.C. board. The time will be shortened as follows. (Refer to page 18.) Set time : 1-minute 1-second Set time : 3-minute... - Page 9 How to release “AUTO RESTART FUNCTION” Turn off the main power for the unit. Pull out the indoor electronic control P.C. board and the power monitor receiver P.C.board. (Refer to page 19.) Solder the Jumper wire to the JR07 on the indoor electronic control P.C.board. (Refer to page 18.) IC101 JR07 Operation...
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Page 10: Troubleshooting
TROUBLESHOOTING MSZ-A09YV - MSZ-A12YV - 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. Take care the following during servicing. 1) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the main unit, and then after confirming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug. - Page 11 5. How to install the horizontal vanes If horizontal vanes are not installed correctly, both of the operation indicator lamps will flash. In this case, install the horizontal vanes correctly by following the procedures 1 to 6. NOTE: Before installation of the horizontal vanes, disconnect the power supply plug and/ or turn off the breaker. Upper vane Stopper Stopper...
- Page 12 8-2. Instruction of troubleshooting Start Indoor unit Indoor unit OPERATION INDICATOR operates. doesn't receive lamp on the indoor unit is Outdoor unit the signal from flashing on and off. doesn't remote controller. operate. Outdoor unit Unit doesn't Indoor unit Indoor unit doesn't Outdoor unit operate...
- Page 13 1. Troubleshooting check table • The following indication applies regardless of shape of the indicator. flashing · Flashing of the OPERATION INDICATOR lamp (on the left or both) Operation Indicator indicates possible abnormalities. · The OPERATION INDICATOR lamp (on the left) is lighting during normal operation.
- Page 14 2. Trouble criterion of main parts MSZ-A09YV - MSZ-A12YV - Part name Check method and criterion Figure Room temperature Measure the resistance with a tester. (Part temperature 10˚C ~ 30˚C) thermistor(RT11) Normal Abnormal Indoor coil thermistor Open or short-circuit 8 k" ~ 20 k" (RT12(MAIN), RT13(SUB)) Measure the resistance between the terminals with a tester.
- Page 15 Indoor unit operates by pressing the EMERGENCY OPERATION switch, but does not operate with the remote controller. Check of remote controller and receiver P.C. board wCheck if the remote controller is exclusive for this air conditioner. Switch on the remote controller. Indoor electronic control P.C.
- Page 16 When OPERATION INDICATOR lamp flashes ON and OFF in every 0.5-second or flashes once. Outdoor unit doesn’t operate. How to check mis-wiring w Short circuit of JPG and JPS on the indoor Start electronic control P.C. board enables self -check to be displayed in 3 seconds. •...
- Page 17 When both OPERATION INDICATOR lamps flash 1-time. Indoor unit and outdoor unit don’t operate. Check of installation of the horizontal vanes Start Turn OFF the power supply. Relock the stopper of the Is the stopper of the horizontal vane horizontal vane to the indoor unit. locked to the indoor unit correctly? Refer to page 11.
- Page 18 TEST POINT DIAGRAM AND VOLTAGE MSZ-A09YV - MSZ-A12YV - Indoor electronic control P.C. board Power supply input 230V AC Fuse F11 250V AC 3.15A R132 Indoor fan motor 230V AC Safety device of fan by horizontal vane CN1R1 Room temperature Varistor thermistor RT11 (NR11)
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Page 19: Disassembly Instructions
DISASSEMBLY INSTRUCTIONS <"Terminal with lock mechanism" Detaching points> In case of terminal with lock mechanism, detach the terminal as shown below. There are two types ( Refer to (1) and (2)) of the terminal with lock mechanism. The terminal with no lock mechanism can be removed by pulling it out. Check the shape of the terminal and work. - Page 20 OPERATING PROCEDURE PHOTOS 3. Removing the electrical box Vane motor Photo 3 Indoor coil thermistor (1) Remove the panel. (Refer to 1.) connector connector (2) Remove the electrical cover. (Refer to 2.) (3) Remove the V.A. clamp. (Refer to 2.) Screw of the (4) Remove the cord clamp.
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Page 21: Parts List
PARTS LIST MSZ-A09YV - (WH) MSZ-A12YV - (WH) 10-1. INDOOR UNIT STRUCTURAL PARTS 10-2. ACCESSORY AND REMOTE CONTROLLER 1 (w) 9 (w) 7 (See page 23.) (w) These figures show about MSZ-A12YV. 10-1. INDOOR UNIT STRUCTURAL PARTS Q'ty/unit Symbol Remarks Part No. - Page 22 MSZ-A09YV - (WH) MSZ-A12YV - (WH) 10-4. INDOOR UNIT HEAT EXCHANGER 10-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS 23 (W) SLEEVE BEARING ROOM TEMPERATURE THERMISTOR (W) This figure shows about MSZ-A12YV. FUSE VARISTOR 10-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS Part number that is circled is not shown in the illustration.
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Page 23: Optional Parts
10-5. 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. - Page 24 HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN C C Copyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD Distributed in Jan. 2004. No. OB327 6 New publication, effective Jan. 2004 Made in Japan Specifications subject to change without notice.