Mitsubishi Electric MXZ-2F33VF -ET1 Service Manual

OUTDOOR UNIT

SERVICE MANUAL

Models

MXZ-2F33VF

MXZ-2F33VF2

MXZ-2F33VF3

MXZ-2F42VF

MXZ-2F42VF2

MXZ-2F42VF3

MXZ-2F53VF

MXZ-2F53VF2

MXZ-2F53VF3

MXZ-2F53VFH

MXZ-2F53VFH2

MXZ-2F53VFH3

MXZ-3F54VF

MXZ-3F54VF2

MXZ-3F54VF3

MXZ-2F33VF

MXZ-2F33VF2

MXZ-2F42VF

MXZ-2F42VF2

MXZ-2F53VF

MXZ-2F53VF2

MXZ-2F53VFH

MXZ-2F53VFH2

MXZ-3F68VF

ET1

MXZ-3F68VF2

ET1

MXZ-3F68VF3

ET1

ER1

MXZ-4F72VF

ET1

MXZ-4F72VF2

ET1

MXZ-4F72VF3

ET1

ER1

MXZ-4F80VF2

ET1

MXZ-4F80VF3

ET1

MXZ-4F83VF

ET1

ER1

MXZ-5F102VF

MXZ-6F122VF

MXZ-2F53VFHZ

MXZ-4F83VFHZ

ET1

ET2

ET1

Indoor unit service manual

ET1

ER1

MSZ-LN•VG Series (OBH766)

MSZ-LN•VG2 Series (OBH766)

MSZ-EF•VG Series (OBH589)

MSZ-AP•VF Series (OBH799)

MSZ-AP•VG Series (OBH788)

MSZ-BT•VG Series (OBH849)

MXZ-2F33VF3

MXZ-2F42VF3

MXZ-2F53VF3

MXZ-2F53VFH3

Revision H:

• MXZ-2F33/42/53VF3 -

MXZ-4F72VF3 -

ER1

MXZ-5F102VF -

ER1

MXZ-2F53VFHZ -

ER1

have been added.

OBH790 REVISED EDITION-G is void.

HFC

utilized

R32

ET1

ER1

ET1

ER1

ET1

ER1

ET1

ER1

ET1

ER1

MLZ-KP•VF Series (OBH801)

MFZ-KT•VG Series (OBH843)

SLZ-M•FA Series (OCH522)

SEZ-M•DA Series (HWE17040)

PCA-M•KA Series (OCH659)

PEAD-M•JA(L) Series (HWE16130)

CONTENTS

INDOOR / OUTDOOR UNIT

•

COMPATIBILITY TABLE ·······················3

1. TECHNICAL CHANGES ······························5

2. SAFETY PRECAUTION ·······························7

3. PART NAMES AND FUNCTIONS ················ 17

4. SPECIFICATION ······································ 19

5. NOISE CRITERIA CURVES ························ 44

6. OUTLINES AND DIMENSIONS ··················· 48

7. WIRING DIAGRAM ··································· 56

8. REFRIGERANT SYSTEM DIAGRAM ··········· 82

9. PERFORMANCE CURVES ························· 93

10. ACTUATOR CONTROL ··························· 142

11. SERVICE FUNCTIONS ···························· 143

12. TROUBLESHOOTING ····························· 150

13. DISASSEMBLY INSTRUCTIONS ··············· 184

PARTS CATALOG (OBB790)

, MXZ-3F54/68VF3 -

ER1

, MXZ-4F83VF -

ER1

, MXZ-6F122VF -

ER1

and MXZ-4F83VFHZ -

ER1

No. OBH790

REVISED EDITION-H

ET2

Table of Contents

Need help?

Do you have a question about the MXZ-2F33VF -ET1 and is the answer not in the manual?

Questions and answers

Summarization of Contents

TECHNICAL CHANGES

SAFETY PRECAUTION

ALWAYS OBSERVE FOR SAFETY

General safety rule to disconnect power before accessing terminals.

CAUTIONS RELATED TO NEW REFRIGERANT

Specific precautions for units using R32 refrigerant, including preparation and handling.

Warning for service

General warnings and instructions for service personnel, covering installation, relocation, and repair.

Cautions for service

Specific cautions during service, including refrigerant recovery and handling.

Additional refrigerant charge

Guidance on how to charge refrigerant directly from a cylinder.

Cautions for unit using R32 refrigerant

General cautions for handling units with R32 refrigerant, covering work procedures and safety.

PRECAUTIONS WHEN REUSING EXISTING R22/R410a REFRIGERANT PIPES

Guidelines and flowchart for determining if existing refrigerant pipes can be reused.

CHOOSING THE OUTDOOR UNIT INSTALLATION LOCATION

MINIMUM INSTALLATION AREA

Specifies minimum installation space requirements to ensure safety and performance.

PART NAMES AND FUNCTIONS

SPECIFICATION

NOISE CRITERIA CURVES

OUTLINES AND DIMENSIONS

WIRING DIAGRAM

REFRIGERANT SYSTEM DIAGRAM

PERFORMANCE CURVES

How to measure the indoor air wet and dry bulb temperature difference

Step-by-step guide on measuring temperature differences for performance analysis.

HOW TO OPERATE FIXED-FREQUENCY OPERATION

Instructions for operating the unit in fixed-frequency mode for testing.

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT CURVE

Graphs showing outdoor low pressure and current based on ambient conditions.

ACTUATOR CONTROL

Relation between main sensor and actuator

Details how sensors relate to actuators for system control.

SERVICE FUNCTIONS

THE POSITION OF SWITCH

Explains the function and position of switches on the P.C. board.

LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT)

Instructions on how to lock the operation mode to prevent unintended changes.

HOW TO SET LOW STANDBY POWER MODE

Procedure to set or deactivate the low standby power mode.

LOWERING THE OPERATING NOISE OF THE OUTDOOR UNIT

How to enable a function to reduce outdoor unit operating noise, especially at night.

AUTOMATIC LINE CORRECTING

Explains the automatic function to detect and correct wiring or piping errors.

CHANGING THE SET REFRIGERANT EVAPORATING TEMPERATURE

How to adjust the refrigerant evaporating temperature setting.

CHANGING THE AMPERE LIMIT

Instructions on how to change the ampere limit for the outdoor unit.

TROUBLESHOOTING

CAUTIONS ON TROUBLESHOOTING

Important safety precautions and checks before starting troubleshooting.

FAILURE MODE RECALL FUNCTION

How to recall and interpret failure codes indicated by LEDs.

Table of outdoor unit failure mode recall function

A table detailing failure modes, conditions, and remedies based on LED indications.

TROUBLE CRITERION OF MAIN PARTS

Specifies resistance and voltage criteria for checking key components.

TROUBLESHOOTING FLOW

Flowcharts to diagnose and resolve common operational issues.

TEST POINT DIAGRAM AND VOLTAGE

Diagrams showing test points and voltage specifications for troubleshooting.

DISASSEMBLY INSTRUCTIONS

MXZ-2F33VF ... MXZ-2F53VFH3

Step-by-step instructions for disassembling specific model series.

MXZ-3F54VF ... MXZ-4F80VF3

Detailed procedure for disassembling specific model series, including panel removal.

MXZ-4F83VF MXZ-5F102VF

Disassembly instructions specifically for MXZ-4F83VF and MXZ-5F102VF models.

MXZ-2F53VFHZ

Disassembly instructions for the MXZ-2F53VFHZ model.

MXZ-4F83VFHZ

Disassembly instructions for the MXZ-4F83VFHZ model.

MXZ-6F122VF

Disassembly instructions specific to the MXZ-6F122VF model.

Mitsubishi Electric MXZ-2F33VF -ET1 Service Manual

Table of Contents

Need help?

Questions and answers

Related Manuals for Mitsubishi Electric MXZ-2F33VF -ET1

Summarization of Contents

Table of Contents