Trane NTXWPH A Series User Manual

HFC
utilized
R410A
PARTS CATALOG (OBBT702)
SERVICE MANUAL
No. OBHT702
CONTENTS
1. TECHNICAL CHANGES ··································· 4
2. PART NAMES AND FUNCTIONS ····················· 5
3. SPECIFICATION ················································ 6
4. NOISE CRITERIA CURVES ···························· 14
5. OUTLINES AND DIMENSIONS ······················ 16
6. WIRING DIAGRAM ·········································· 22
7. REFRIGERANT SYSTEM DIAGRAM ············· 28
8. DATA ································································ 41
9. ACTUATOR CONTROL ··································· 70
10. SERVICE FUNCTIONS ···································· 71
11. TROUBLESHOOTING ····································· 73
12. DISASSEMBLY INSTRUCTIONS ···················· 94
Models
NTXMMX20A122AA
NTXMMX24A132AA
NTXMMX30A132AA
NTXMMX36A142AA
NTXMMX42A152AA
NTXMPH20A122AA
NTXMPH24A132AA
NTXMPH30A132AA
NTXMMX24A132AA
NTXMMX30A132AA
NTXMMX36A142AA
OUTDOOR UNIT
Indoor unit service manual
NTXWPH·A Series (OBHT683)
NTX(Y)WST·A Series (OBHT732)
NTXFKS·A Series (OBHT752)
NTXCKS·A Series (OCHT669)
PLA-A·EA Series (OCH640)
NTXDKS·A Series
PEAD-A·AA Series
PCA-A·KA Series (OCH455)
NTXAMT·A Series

Trane NTXWPH A Series Specifications

General

Brand	Trane
Model	NTXWPH A Series
Category	Air Conditioner
Language	English

Summary

Technical Changes

Part Names and Functions

Specifications

Noise Criteria Curves

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Technical Data

Actuator Control

Service Functions

Pre-Heat Control

Manages compressor startup by heating windings when idle.

Troubleshooting

Troubleshooting Cautions

Safety and procedural notes before starting troubleshooting.

Failure Mode Recall Function

Recalls and displays past abnormal conditions and error codes.

Troubleshooting Instructions

Guides troubleshooting steps based on LED indicators.

Troubleshooting Check Table

Lists symptoms, indications, conditions, and remedies for faults.

Trouble Criterion of Main Parts

Specifies resistance/voltage criteria for testing key components.

Troubleshooting Flow

Flowcharts for diagnosing unit non-operation and power issues.

Test Point Diagram and Voltage

Provides diagrams of P.C. boards with test points and voltage values.

Disassembly Instructions

Disassembly: NTXMMX20A122AA

Step-by-step guide to disassembling specific outdoor unit models.

Disassembly: NTXMMX24A132AA, NTXMMX30A132AA, NTXMMX36A142AA

Disassembly steps for multiple outdoor unit models.

Disassembly: NTXMMX42A152AA, NTXMPH20A122AA, NTXMPH24A132AA, NTXMPH30A132AA

Disassembly procedures for various outdoor unit models.