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OUTDOOR UNIT
SERVICE MANUAL
Models
MXZ-2F33VF
-
E1
MXZ-2F33VF2
-
MXZ-2F33VF3
-
MXZ-2F42VF
-
E1
MXZ-2F42VF2
-
MXZ-2F42VF3
-
MXZ-2F53VF
-
E1
MXZ-2F53VF2
-
MXZ-2F53VF3
-
MXZ-2F53VFH
-
MXZ-2F53VFH2
MXZ-2F53VFH3
MXZ-3F54VF
-
E1
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
,
E1
ET1
MXZ-3F68VF3
,
,
,
E1
ET1
ER1
E2
MXZ-4F72VF
,
ET1
MXZ-4F72VF2
E1
,
ET1
MXZ-4F72VF3
E1
,
ET1
,
ER1
,
E2
MXZ-4F80VF2
,
ET1
MXZ-4F80VF3
,
E1
ET1
MXZ-4F83VF
,
,
,
E1
ET1
ER1
E2
MXZ-5F102VF
E1
MXZ-6F122VF
-
E1
-
MXZ-2F53VFHZ
E1
,
E2
MXZ-4F83VFHZ
,
ET1
,
E2
,
ET2
E1
,
ET1
Indoor unit service manual
E1
,
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
-
,
,
E1
ET1
E2
-
,
E1
ET1
-
,
,
E1
ET1
ER1
-
E1
,
ET1
,
E2
-
E1
,
ET1
-
E1
,
ET1
,
ER1
-
E1
,
ET1
-
,
E1
ET1
-
,
,
E1
ET1
ER1
-
,
,
E1
ET1
ER1
-
,
,
E1
ET1
ER1
-
E1
,
ER1
-
E1
,
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
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
ER1
, MXZ-4F83VF -
,
ER1
, MXZ-6F122VF -
,
ER1
and MXZ-4F83VFHZ -
ER1
No. OBH790
REVISED EDITION-H
,
ET2
,
ET2
,

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Summarization of Contents

OUTDOOR UNIT SERVICE MANUAL
Models
Lists the outdoor unit models covered in the manual.
SAFETY PRECAUTION
Use the Specified Refrigerant Only
Critical warning about using only the specified refrigerant type for safety.
SAFETY PRECAUTION
Cautions Related to New Refrigerant
Specific safety guidelines for using R32 refrigerant.
Preparation Before Repair Service
Steps to take before starting repair work on the unit.
PART NAMES AND FUNCTIONS
ACCESSORIES
Identifies and lists optional or included accessories for the unit.
OUTLINES AND DIMENSIONS
Installation Space
Guidelines for required clearance around the outdoor unit for installation.
REFRIGERANT SYSTEM DIAGRAM
MAX REFRIGERANT PIPING LENGTH
Specifications for the maximum length of refrigerant piping.
PERFORMANCE CURVES
MAIN READINGS
Definitions of key measurement parameters used in performance curves.
SERVICE FUNCTIONS
POSITION OF SWITCH
Details the location and function of switches on the P.C. board.
TROUBLESHOOTING
CAUTIONS ON TROUBLESHOOTING
General safety warnings and precautions before performing troubleshooting.
FAILURE MODE RECALL FUNCTION
Memorizes and displays abnormal conditions that occurred once.
TEST POINT DIAGRAM AND VOLTAGE
Inverter P.C. board
Diagram and voltage points for the inverter's P.C. board.
DISASSEMBLY INSTRUCTIONS
Removing the cabinet and the panels
Steps to remove external panels for access.
Removing the inverter assembly and the inverter P.C. board
Procedure for removing the inverter assembly and its P.C. board.
Removing the compressor and the 4-way valve
Steps for removing the compressor and 4-way valve.

Table of Contents