Mitsubishi Electric TRANE NTXMMX A AA Series User Manual

CONTENTS
1. TECHNICAL CHANGES
·······································
2
2. PART NAMES AND FUNCTIONS ····················· 3
3. SPECIFICATION ················································ 6
4. OUTLINES AND DIMENSIONS ························ 8
5. WIRING DIAGRAM ·········································· 10
6. REFRIGERANT SYSTEM DIAGRAM ············· 12
7. SERVICE FUNCTIONS ··································· 13
8. MICROPROCESSOR CONTROL ··················· 15
9. TROUBLESHOOTING ····································· 23
10. DISASSEMBLY INSTRUCTIONS ···················· 41
Outdoor unit service manual
NTXSST•A112AA, NTYSST•A112AA Series (OBHT733)
NTXMMX•A•AA, NTXMPH•A•AA Series (OCHT573)
PARTS CATALOG (OBBT732)
NTXWST18A112AA
NTYWST18A112AA
INDOOR UNIT
SERVICE MANUAL
INDOOR UNIT
Models
NTXWST06A112AA
NTXWST09A112AA NTYWST09A112AA
NTXWST12A112AA NTYWST12A112AA
NTXWST15A112AA NTYWST15A112AA
NTXWST18A112AA NTYWST18A112AA
NTXWST24A112AA NTYWST24A112AA
No. OBHT732

Mitsubishi Electric TRANE NTXMMX A AA Series Specifications

General

Series	NTXMMX A AA
Refrigerant	R410A
Operating Temperature (Heating)	-15°C to 24°C
Power Supply	208-230V, 1 Phase, 60Hz
Dimensions (Indoor Unit)	Varies by model
Dimensions (Outdoor Unit)	Varies by model
Weight (Indoor Unit)	Varies by model
Weight (Outdoor Unit)	Varies by model

Summary

Specification

Wiring Diagram

Refrigerant System Diagram

Service Functions

Microprocessor Control

Troubleshooting

Troubleshooting Cautions and Procedures

Provides essential safety precautions and initial troubleshooting steps.

Failure Mode Recall Function

Describes how to recall and diagnose past abnormal conditions.

Troubleshooting Check Table

Lists common symptoms, conditions, and remedies for unit malfunctions.

Troubleshooting Flowcharts

Step-by-step guides for diagnosing specific issues like fan motor or wiring errors.

Test Point Diagrams and Voltages

Illustrates test points and voltage readings for electrical troubleshooting.

Disassembly Instructions

Indoor Electronic Control PC Board Removal (06/09/12/15 Series)

Procedure to remove the indoor electronic control PC board.

Indoor Fan Motor Removal (06/09/12/15 Series)

Steps for removing the indoor fan motor.

Indoor Power PC Board Removal (18/24 Series)

Indoor Electronic Control PC Board Removal (18/24 Series)

Indoor Fan Motor Removal (18/24 Series)

Control & Terminal PC Board Removal (24 Series)

Indoor Fan Motor Removal (24 Series)