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Mitsubishi Electric MXZ-4D72VA - User Manual

Mitsubishi Electric MXZ-4D72VA
306 pages
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SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 4
3. SPECIFICATION ················································ 5
4. NOISE CRITERIA CURVES ···························· 14
5. OUTLINES AND DIMENSIONS ······················ 17
6. WIRING DIAGRAM ·········································· 21
7. REFRIGERANT SYSTEM DIAGRAM ············· 50
8. PERFORMANCE CURVES ····························· 59
9. ACTUATOR CONTROL ··································· 87
10. SERVICE FUNCTIONS ···································· 88
11. TROUBLESHOOTING ····································· 92
12. DISASSEMBLY INSTRUCTIONS ·················· 121
INDOOR UNITS COMBINATION SHEETS
Models
No. OBH626
REVISED EDITION-F
HFC
utilized
R410A
SPLIT-TYPE AIR CONDITIONERS
OUTDOOR UNIT
Indoor unit service manual
MSZ-EF•VE Series (OBH589)
MSZ-SF•VA Series (OBH555)
MSZ-SF•VE Series (OBH600)
MSZ-FH•VE Series (OBH623)
MFZ-KA•VA Series (OB409)
MFZ-KJ•VE Series (OBH666)
MLZ-KA•VA Series (OBH483)
SLZ-KA•VA Series (OC320)
SEZ-KD•VA Series (HWE07110)
PLA-RP•BA Series (OCH412)
PCA-RP•KA Series (OCH454)
PEAD-RP•JA Series (HWE08130)
NOTE:
RoHS compliant products have <G> mark
on the spec name plate.
PARTS CATALOG (OBB626)
MXZ-2D33VA
MXZ-2D40VA
MXZ-2D42VA
MXZ-2D53VA MXZ-2D53VAH
Please void OBH626 REVISED EDITION-E
MXZ-2D33VA
-
E1
,
E2
,
ER2
,
ET2
MXZ-2D40VA
-
E1
,
ER2
MXZ-2D42VA
-
E2
,
ET2
MXZ-2D53VA
-
E1
,
E2
,
ER2
,
ET2
MXZ-2D53VAH
-
E1
,
E2
,
ER2
MXZ-3D54VA
-
E1
MXZ-3D54VA2
-
E2
,
ER2
,
ET2
MXZ-3D68VA
-
E1
,
E2
,
ER2
,
ET2
MXZ-4D72VA
-
E1
,
E2
,
ER2
,
ET2
MXZ-4D83VA
-
E1
,
E2
,
ER1
,
ER2
,
ET2
MXZ-5D102VA
-
E1
,
E2
,
ER1
,
ER2
,
ET2
Revision F:
•
MXZ-2D33/2D42/2D53/3D68/4D72/4D83/5D102VA
-
ET2
and MXZ-3D54VA2
-
ET2
have been added.

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Questions and Answers

  • R
    Rebecca CrosbyAug 8, 2025
    What to do if the Mitsubishi Electric Air Conditioner detects high pressure with the high-pressure switch (HPS) during operation?
    • J
      joesmithAug 8, 2025
      If the high-pressure switch detects high pressure during operation, check the refrigerant circuit and the refrigerant amount. Also, check the stop valve.
  • Z
    Zachary ClarkAug 13, 2025
    What should I do if the fin temperature exceeds 90 ºC during operation of my Mitsubishi Electric Air Conditioner?
    • P
      Pamela MooreAug 13, 2025
      If the fin temperature exceeds 90 ºC during operation, check around the outdoor unit and the outdoor unit air passage.
  • J
    Jeanette HintonAug 20, 2025
    What to do if the discharge temperature exceeds 116 ºC during operation of Mitsubishi Electric Air Conditioner?
    • D
      Dawn YoungAug 20, 2025
      If the discharge temperature exceeds 116 ºC during operation, check the refrigerant circuit and the refrigerant amount.
  • B
    Brandon BurtonAug 27, 2025
    What to do if the sensor circuit of current of compressor shorts or opens during compressor operate of Mitsubishi Electric MXZ-4D72VA?
    • A
      amycabreraAug 27, 2025
      If the sensor circuit of current of compressor shorts or opens during compressor operation, replace the inverter P.C. board.
  • H
    hchapmanAug 31, 2025
    What to do if Mitsubishi Electric MXZ-4D72VA Air Conditioner nonvolatile memory data cannot be read properly?
    • A
      Andrew RobertsSep 1, 2025
      If the nonvolatile memory data cannot be read properly, replace the inverter P.C. board.

Mitsubishi Electric MXZ-4D72VA Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMXZ-4D72VA
CategoryAir Conditioner
LanguageEnglish

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