Mitsubishi Electric MXZ-2F53VFH4-E1 User Manual

HFC
utilized
R32
SERVICE MANUAL
No. OBH790
REVISED EDITION-L
OUTDOOR UNIT
PARTS CATALOG (OBB790)
Indoor unit service manual
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)
MSZ-AY•VG Series (OBH930, 932)
MLZ-KP•VF Series (OBH801)
MFZ-KT•VG Series (OBH843)
MLZ-KY•VG Series (OBH921)
SLZ-M•FA Series (OCH522)
SEZ-M•DA Series (HWE17040)
CONTENTS
• INDOOR / OUTDOOR UNIT
COMPATIBILITY TABLE ·······················4
1. TECHNICAL CHANGES ······························7
2. SAFETY PRECAUTION ·······························9
3. PART NAMES AND FUNCTIONS ················19
4. SPECIFICATION ······································21
5. NOISE CRITERIA CURVES ························58
6. OUTLINES AND DIMENSIONS ··················· 62
7. WIRING DIAGRAM ··································· 70
8. REFRIGERANT SYSTEM DIAGRAM ··········111
9. PERFORMANCE CURVES ······················· 122
10. ACTUATOR CONTROL ··························· 171
11. SERVICE FUNCTIONS ···························· 172
12. TROUBLESHOOTING ····························· 179
13. DISASSEMBLY INSTRUCTIONS ··············· 214
MXZ-2F33VF2
MXZ-2F42VF2
MXZ-2F53VF2
MXZ-2F53VFH2
MXZ-2F33VF3
MXZ-2F42VF3
MXZ-2F53VF3
MXZ-2F53VFH3
MXZ-2F33VF4
MXZ-2F42VF4
MXZ-2F53VF4
MXZ-2F53VFH4
OBH790 REVISED EDITION-K is void.
MXZ-2F33VF
MXZ-2F42VF
MXZ-2F53VF
MXZ-2F53VFH
Models
MXZ-2F33VF -
E1
,
ET1
MXZ-3F68VF -
E1
,
ET1
,
E2
,
ET2
MXZ-2F33VF2 -
E1
,
ET1
MXZ-3F68VF2 -
E1
,
ET1
MXZ-2F33VF3 -
E1
,
ET1
,
ER1
,
E2
MXZ-3F68VF3 -
E1
,
ET1
,
ER1
MXZ-2F33VF4 -
E1
,
ET1
MXZ-3F68VF4 -
E1
,
ET1
MXZ-2F42VF -
E1
,
ET1
MXZ-4F72VF -
E1
,
ET1
,
E2
,
ET2
MXZ-2F42VF2 -
E1
,
ET1
MXZ-4F72VF2 -
E1
,
ET1
MXZ-2F42VF3 -
E1
,
ET1
,
ER1
,
E2
MXZ-4F72VF3 -
E1
,
ET1
,
ER1
MXZ-2F42VF4 -
E1
,
ET1
MXZ-4F72VF4 -
E1
,
ET1
MXZ-2F53VF -
E1
,
ET1
MXZ-4F80VF2 -
E1
,
ET1
MXZ-2F53VF2 -
E1
,
ET1
MXZ-4F80VF3 -
E1
,
ET1
MXZ-2F53VF3 -
E1
,
ET1
,
ER1
,
E2
MXZ-4F80VF4 -
E1
,
ET1
MXZ-2F53VF4 -
E1
,
ET1
MXZ-4F83VF -
E1
,
ET1
,
ER1
MXZ-2F53VFH -
E1
MXZ-4F83VF2 -
E1
,
ET1
MXZ-2F53VFH2 -
E1
MXZ-5F102VF -
E1
,
ET1
,
ER1
MXZ-2F53VFH3 -
E1
,
E2
MXZ-5F102VF2 -
E1
,
ET1
MXZ-2F53VFH4 -
E1
MXZ-6F120VF2 -
E1
,
ET1
MXZ-3F54VF -
E1
,
ET1
,
E2
,
ET2
MXZ-6F122VF -
E1
,
ET1
,
ER1
MXZ-3F54VF2 -
E1
,
ET1
MXZ-2F53VFHZ -
E1
,
ER1
MXZ-3F54VF3 -
E1
,
ET1
,
ER1
,
E2
,
ET2
,
ER2
MXZ-2F53VFHZ2 -
E1
MXZ-3F54VF4 -
E1
,
ET1
MXZ-4F83VFHZ -
E1
,
ER1
MXZ-4F83VFHZ2 -
E1
Revision L:
• MXZ-2F33/42/53VF4 -
E1
,
ET1
,
MXZ-2F53VFH4 -
E1
, MXZ-3F54/68VF4 -
E1
,
ET1
,
MXZ-4F72/80VF4 -
E1
,
ET1
, MXZ-4F83VF2 -
E1
,
ET1
,
MXZ-5F102VF2 -
E1
,
ET1
, MXZ-6F120VF2 -
E1
,
ET1
,
MXZ-2F53VFHZ2 -
E1
and MXZ-4F83VFHZ2 -
E1
have been added.
SFZ-M•VA Series (HWE19090)
PCA-M•KA Series (OCH659)
PEAD-M•JA(L) Series (HWE16130)
PEAD-M•JA(L)2 Series (HWE21070)

Mitsubishi Electric MXZ-2F53VFH4-E1 Specifications

General

Category	Air Conditioner
Cooling Capacity	5.3 kW
Heating Capacity	6.0 kW
Power Source	220-240 V, 50 Hz
Refrigerant	R32
Outdoor Unit Noise Level	49 dB(A)
Type	Multi-Split
Energy Efficiency Ratio (EER)	3.50
Energy Efficiency Ratio (Cooling)	3.50
Outdoor Unit Dimensions (HxWxD)	550 x 845 x 320 mm
Indoor Unit Compatibility	Compatible with various Mitsubishi Electric indoor units

Summary

TECHNICAL CHANGES

SAFETY PRECAUTION

Use the specified refrigerant only

Crucial safety guideline for refrigerant handling and unit operation.

2-1. ALWAYS OBSERVE FOR SAFETY

General safety rule emphasizing power disconnection before accessing terminals.

2-2. CAUTIONS RELATED TO NEW REFRIGERANT

Specific safety advice for units using R32 refrigerant.

SPECIFICATION

WIRING DIAGRAM

REFRIGERANT SYSTEM DIAGRAM

MAX REFRIGERANT PIPING LENGTH

Details on maximum allowable piping lengths and bending points for refrigerant lines.

ADDITIONAL REFRIGERANT CHARGE

Information on how to charge additional refrigerant based on model and piping length.

PERFORMANCE CURVES

9-1. CAPACITY AND THE INPUT CURVES

Graphs showing capacity and input variations based on operating conditions.

CAPACITY AND INPUT CORRECTION BY INVERTER OUTPUT FREQUENCY (single operation)

ACTUATOR CONTROL

Relation between main sensor and actuator

Explains how sensors control various actuators in the system.

SERVICE FUNCTIONS

11-5. AUTOMATIC LINE CORRECTING

TROUBLESHOOTING

12-1. CAUTIONS ON TROUBLESHOOTING

Essential safety precautions and checks before starting troubleshooting.

12-2. FAILURE MODE RECALL FUNCTION

How to recall and check memorized failure codes from the unit's memory.

12-3. INSTRUCTION OF TROUBLESHOOTING

A flowchart guiding the troubleshooting process based on LED indicators.

12-5. TROUBLESHOOTING CRITERION OF MAIN PARTS

12-6. TROUBLESHOOTING FLOW

Check of power supply

Troubleshooting steps for power supply issues affecting unit operation.

How to check miswiring and serial signal error (when outdoor unit does not work)

Diagnosing communication errors and miswiring issues when the outdoor unit is unresponsive.

Check of R.V. coil

Check of LEV

How to check inverter/compressor

Guide for inspecting the inverter and compressor for voltage and resistance issues.

Check of outdoor thermistors

Check of outdoor fan motor

Check of HPS

Check of bus-bar voltage

TEST POINT DIAGRAM AND VOLTAGE

1. Inverter P.C. board

2. Outdoor control P.C. board

DISASSEMBLY INSTRUCTIONS

1. Removing the cabinet and the panels

2. Removing the inverter assembly and the inverter P.C. board

5. Removing the outdoor fan motor

6. Removing the compressor and the 4-way valve

Detailed steps for removing the compressor and the 4-way valve.

1. Removing the panels

2. Removing the outdoor control P.C. board, the reactor and the outdoor power P.C. board

3. Removing the fan motor

4. Removing the expansion valve

6. Removing the compressor and 4-way valve

Detailed steps for removing the compressor and the 4-way valve.