Mitsubishi Electric MXZ-4C36NA3-U1 User Manual

PARTS CATALOG (OBB702)
SERVICE MANUAL
OUTDOOR UNIT
Models
MXZ-2C20NA2 -
U1
,
U4
MXZ-2C20NAHZ
MXZ-2C20NA3
-
U1
MXZ-2C20NAHZ2 -
U1
MXZ-2C20NA4 -
U1
MXZ-2C20NAHZ3 -
U1
MXZ-3C24NA MXZ-2C20NAHZ4 -
U1
MXZ-3C24NA2 -
U1
MXZ-3C24NAHZ
MXZ-3C24NA3
-
U1
MXZ-3C24NAHZ2 -
U1
MXZ-3C24NA4 -
U1
MXZ-3C24NAHZ3 -
U1
MXZ-3C30NA MXZ-3C24NAHZ4 -
U1
MXZ-3C30NA2 -
U1
MXZ-3C30NAHZ
MXZ-3C30NA3
-
U1
MXZ-3C30NAHZ2 -
U1
MXZ-3C30NA4 -
U1
MXZ-3C30NAHZ3 -
U1
MXZ-4C36NA MXZ-3C30NAHZ4 -
U1
MXZ-4C36NA2 -
U1
MXZ-4C36NA3 -
U1
MXZ-4C36NA4 -
U1
MXZ-5C42NA
MXZ-5C42NA2
-
U1
MXZ-5C42NA3 -
U1
MXZ-5C42NA4 -
U1
No. OBH702
REVISED EDITION-N
Indoor unit service manual
MSZ-FE·NA Series (OBH542)
MSZ-FH·NA Series (OBH683)
MSZ-GE·NA Series (OBH548)
MSZ-GL·NA Series (OBH732)
MSZ-EF·NA Series (OBH736)
MSZ-FS·NA Series (OBH872)
MFZ-KA·NA Series (OBH568)
MFZ-KJ·NA Series (OBH752)
SLZ-KA·NA Series (OCH487)
SLZ-KF·NA.TH Series (OCH669)
PLA-A·BA Series (OCH420)
PLA-A·EA Series (OCH640)
SEZ-KD·NA Series
PEAD-A·AA Series
PCA-A·KA Series (OCH455)
MVZ-A·AA Series
SVZ-KP·NA Series (MD-1404-K019)
CONTENTS
• INDOOR / OUTDOOR UNIT
COMPATIBILITY TABLE ······················4
1. TECHNICAL CHANGES ······························8
2. SAFETY PRECAUTION ·······························9
3. PART NAMES AND FUNCTIONS ················13
4. SPECIFICATION ······································ 14
5. NOISE CRITERIA CURVES ························30
6. OUTLINES AND DIMENSIONS ··················· 33
7. WIRING DIAGRAM ··································· 39
8. REFRIGERANT SYSTEM DIAGRAM ··········· 62
9. DATA ······················································ 75
10. ACTUATOR CONTROL ··························· 106
11. SERVICE FUNCTIONS ···························· 107
12. TROUBLESHOOTING ······························110
13. DISASSEMBLY INSTRUCTIONS ··············· 141
HFC
utilized
R410A
Revision N:
• 4. SPECIFICATION and 8. REFRIGERANT
SYSTEM DIAGRAM have been corrected.
OBH702 REVISED EDITION-M is void.
MXZ-3C24NA MXZ-3C30NA MXZ-4C36NA
MXZ-3C24NA2 MXZ-3C30NA2 MXZ-4C36NA2
MXZ-3C24NA3 MXZ-3C30NA3 MXZ-4C36NA3
MXZ-3C24NA4 MXZ-3C30NA4 MXZ-4C36NA4

Mitsubishi Electric MXZ-4C36NA3-U1 Specifications

General

Model Number	MXZ-4C36NA3-U1
Category	Heat Pump
Series	MXZ
Cooling Capacity (BTU/h)	36, 000
HSPF Rating	10.5
Voltage (V)	208/230
Phase	1
Refrigerant Type	R410A
Compressor Type	Inverter
Maximum Number of Connectable Indoor Units	4
Indoor Unit Compatibility	Various Mitsubishi Electric indoor units
Operating Temperature Range (Cooling, °F)	14 to 115
Operating Temperature Range (Heating, °F)	-13 to 75

Summary

Technical Changes

Safety Precautions

General Safety Procedures and R410A Cautions

Covers essential safety measures for repair services and specific handling of R410A refrigerant.

Part Names and Functions

Specifications

Noise Criteria Curves

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Data

Actuator Control

Service Functions

Pre-Heat Control

Manages compressor protection against moisture and liquefaction by warming the winding.

Auto Line Correcting

Automatically detects and corrects wiring/piping errors, confirmed via LED indications.

Refrigerant Evaporating Temperature Setting

Adjusts refrigerant evaporating temperature to prevent dew drop formation.

Troubleshooting

Troubleshooting Overview, Cautions, and Failure Recall

Covers preliminary checks, safety guidelines, and retrieving failure codes for diagnosis.

Diagnostic Tables, Flowcharts, and Part Checks

Utilizes check tables, flowcharts, and part criteria for identifying and resolving malfunctions.

Specific Component and System Troubleshooting

Guides checks for power supply, wiring, coils, compressor, fan motor, and other critical components.

Disassembly Instructions

Removing Panels and Control Boards

Step-by-step instructions for removing external panels, P.C. boards, and related assemblies.

Removing Major Components: Compressor, Fan, Valves

Procedures for removing the compressor, fan motor, 4-way valve, and expansion valves.