EasyManua.ls Logo

Mitsubishi Electric MSZ-GE09NA User Manual

Mitsubishi Electric MSZ-GE09NA
48 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES
·······································
2
2. PART NAMES AND FUNCTIONS ····················· 3
3. SPECIFICATION ················································5
4. OUTLINES AND DIMENSIONS ························ 7
5. WIRING DIAGRAM ············································ 9
6. REFRIGERANT SYSTEM DIAGRAM ············· 11
7. SERVICE FUNCTIONS ···································12
8. MICROPROCESSOR CONTROL ···················14
9. TROUBLESHOOTING ·····································21
10. DISASSEMBLY INSTRUCTIONS ···················· 40
No. OBH548
REVISED EDITION-D
SPLIT-TYPE AIR CONDITIONERS
INDOOR UNIT
Outdoor unit service manual
MUZ-GENA MUY-GENA
Series (OBH549)
MXZ-B·NA Series (OB444)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
PARTS CATALOG (OBB548)
Revision D:
• MSZ-GE06/09/12/15/18NA-
9
and MSY-
GE09/12/15/18NA-
9
have been added.
Please void OBH548 REVISED EDITION-C
MSZ-GE06NA
MSZ-GE09NA
MSZ-GE12NA
MSZ-GE15NA
MSZ-GE18NA
MSZ-GE24NA
MSY-GE09NA
MSY-GE12NA
MSY-GE15NA
MSY-GE18NA
MSY-GE24NA
Models
MSZ-GE06/09/12/15/18NA
MSY-GE09/12/15/18NA
MSZ-GE06NA-
8
,
9
MSZ-GE09NA-
8
,
9
MSZ-GE12NA-
8
,
9
MSZ-GE15NA-
8
,
9
MSZ-GE18NA-
8
,
9
MSY-GE09NA-
8
,
9
MSY-GE12NA-
8
,
9
MSY-GE15NA-
8
,
9
MSY-GE18NA-
8
,
9

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the Mitsubishi Electric MSZ-GE09NA and is the answer not in the manual?

Mitsubishi Electric MSZ-GE09NA Specifications

General IconGeneral
Cooling Capacity9, 000 BTU/h
Voltage208 / 230 V
RefrigerantR410A
Operating Temperature (Cooling)14°F to 115°F
Power Supply208/230V, 1-Phase, 60Hz
Outdoor Unit Dimensions (W x H x D)31-1/2 x 21-5/8 x 11-1/4 inches
Operating Temperature (Heating)5°F to 75°F
Noise Level (Indoor Unit)19 dB
Noise Level (Outdoor Unit)49 dB(A)
Heating Seasonal Performance Factor (HSPF)12.0

Summary

1 TECHNICAL CHANGES

2 PART NAMES AND FUNCTIONS

ACCESSORIES

Lists included accessories with part numbers and quantities.

3 SPECIFICATION

3-1. OPERATING RANGE

Details operational limits including voltage, temperature, and humidity.

3-2. OUTLET AIR SPEED AND COVERAGE

Provides airflow, air speed, and coverage for different models and modes.

4 OUTLINES AND DIMENSIONS

5 WIRING DIAGRAM

6 REFRIGERANT SYSTEM DIAGRAM

7 SERVICE FUNCTIONS

7-1. TIMER SHORT MODE

Describes how to shorten timer set times for service purposes.

7-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION

Explains how to modify the P.C. board for individual unit operation with multiple remotes.

7-3. AUTO RESTART FUNCTION

Details the auto restart feature and how to disable it.

8 MICROPROCESSOR CONTROL

WIRELESS REMOTE CONTROLLER

Shows the layout and buttons of the wireless remote controller.

INDOOR UNIT DISPLAY SECTION

Explains the meaning of the operation indicator lamp on the indoor unit.

8-1. COOL () OPERATION

Instructions for operating the unit in COOL mode.

8-2. DRY (0) OPERATION

Instructions for operating the unit in DRY mode.

8-3. HEAT () OPERATION (MSZ)

Instructions for operating the unit in HEAT mode for MSZ models.

8-4. FAN()OPERATION (MSY)

Instructions for operating the unit in FAN mode for MSY models.

8-5. "I FEEL CONTROL” (□) OPERATION (MSY)

Details the "I FEEL CONTROL" operation mode for MSY models.

8-6. AUTO CHANGE OVER ... AUTO MODE OPERATION (MSZ)

Explains automatic switching between COOL and HEAT modes.

8-7. AUTO VANE OPERATION

Describes the operation and positioning of the auto vane feature.

8-8. TIMER OPERATION

Instructions for setting and releasing ON/OFF timers and program timers.

8-9. SMART SET () OPERATION (MSZ-GE06/09/12/15/18NA MSY-09/12/15/18NA)

Guide to setting up and canceling the SMART SET operation mode.

8-10. EMERGENCY/TEST OPERATION

How to perform emergency and test run operations on the indoor unit.

8-11. 3-MINUTE TIME DELAY OPERATION

Explains the compressor protection feature against frequent starts.

8-12. Changing temperature indication (°F/°C)

How to switch between Fahrenheit and Celsius for temperature display.

9 TROUBLESHOOTING

9-1. CAUTIONS ON TROUBLESHOOTING

Important precautions and checks before starting troubleshooting procedures.

9-2. FAILURE MODE RECALL FUNCTION

How to recall and check past failure modes of the unit.

2. Indoor unit failure mode table

Table listing indoor unit failure modes, symptoms, conditions, and remedies.

9-4. TROUBLESHOOTING CHECK TABLE

A table correlating operation indicator patterns with troubleshooting steps.

OPERATION INDICATOR

Explains the meaning of operation indicator lamp patterns.

9-5. TROUBLE CRITERION OF MAIN PARTS

Criteria and methods for checking main parts like thermistors and motors.

9-6. TROUBLESHOOTING FLOW

Flowcharts to diagnose indoor fan motor issues.

B Check of remote controller and indoor electronic control P.C. board

Steps to check the remote controller and indoor electronic board functionality.

C Check of indoor P.C. board and indoor fan motor

Procedures for checking the indoor P.C. board and fan motor.

D How to check miswiring and serial signal error

Guide to identifying and correcting wiring and serial signal errors.

E Electromagnetic noise enters into TV sets or radios

Steps to identify and mitigate electromagnetic interference issues.

9-7. Test point diagram and voltage

Diagrams and voltage specifications for testing components on P.C. boards.

10 DISASSEMBLY INSTRUCTIONS

2. Removing the indoor electronic control P.C. board and the room temperature thermistor

Steps to remove the main control board and temperature sensor.

3. Removing the indoor power P.C. board, the indoor terminal P.C. board, and the electrical box

Procedures for removing the power board, terminal board, and electrical box.

4. Removing the nozzle assembly

Instructions for removing the air outlet nozzle assembly.

5. Removing the vertical vane motor unit

Steps to remove the vertical vane motor assembly.

6. Removing the horizontal vane motor

Steps to remove the horizontal vane motor assembly.

6. Removing the indoor fan motor, the indoor coil thermistor, and the line flow fan

Procedures for removing the fan motor, coil thermistors, and fan.

10-2. MSZ-GE24NA MSY-GE24NA

Disassembly procedures specific to the MSZ-GE24NA and MSY-GE24NA models.

4. Removing the nozzle assembly

Instructions for removing the air outlet nozzle assembly.

5. Removing the vertical vane motor unit

Steps to remove the vertical vane motor assembly.

6. Removing the horizontal vane motor

Steps to remove the horizontal vane motor assembly.

7. Removing the water cut, the indoor fan motor, the indoor coil thermistor, and the line flow fan

Procedures for removing water cut, fan motor, thermistors, and fan.

Related product manuals