Mitsubishi Electric NTXMSM60A182BA User Manual

TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT
No. OCHT810
REVISED EDITION-A
HFC
utilized
R410A
September 2023
Note:
•
Specifications have been
changed in REVISED
EDITION-A.
Model name
indication
PARTS CATALOG (OCBT810)
CONTENTS
1. SAFETY PRECAUTION ·······················2
2. OVERVIEW OF UNITS ························5
3. SPECIFICATIONS ···························· 11
4. DATA ·············································· 14
5. OUTLINES AND DIMENSIONS ··········· 36
6. WIRING DIAGRAM ··························· 37
7. NECESSARY CONDITIONS
FOR SYSTEM CONSTRUCTION ········· 40
8. TROUBLESHOOTING ······················· 55
9. ELECTRICAL WIRING ·····················133
10. REFRIGERANT PIPING TASKS ·········139
11. DISASSEMBLY PROCEDURE ···········147
12. REMOTE CONTROLLER ··················168
<Outdoor unit>
[Model Name]
NTXMSM36A142BA
NTXMSM48A182BA
NTXMSM60A182BA
NTXMSH36A142BA
NTXMSH42A152BA
NTXMSH48A182BA
OCHT810 is void.

Mitsubishi Electric NTXMSM60A182BA Specifications

General

Phase	1
Refrigerant	R410A
Type	Split System
Cooling Capacity (BTU)	18000
Heating Capacity (BTU)	20000
Voltage (V)	208-230V

Summary

1 SAFETY PRECAUTION

1-1. ALWAYS OBSERVE FOR SAFETY

1-2. CAUTIONS RELATED TO NEW REFRIGERANT

Safety precautions specific to R410A refrigerant and related procedures.

3 SPECIFICATIONS

6 WIRING DIAGRAM

7 NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION

8 TROUBLESHOOTING

8-1-2. Countermeasures For Error During Test Run

Lists error codes and their corresponding troubleshooting steps and countermeasures.

8-1-3. SELF-DIAGNOSIS ACTION BY FLOWCHART

Flowcharts to diagnose and resolve specific self-diagnosis errors like serial communication issues.

9 ELECTRICAL WIRING

10 REFRIGERANT PIPING TASKS

■ Selecting the Refrigerant Branch Kit

■ Additional refrigerant charge

Calculation and procedure for adding refrigerant charge based on pipe length and indoor unit capacity.

11 DISASSEMBLY PROCEDURE

12 REMOTE CONTROLLER

12-2. ERROR INFORMATION

Guide to viewing and resetting error codes displayed on the remote controller.

12-3. SERVICE MENU

Guide to accessing and navigating the service menu, including password entry.

12-4. TEST RUN

Procedures for performing test runs in cool, heat, and auto vane modes.

12-5. FUNCTION SETTING

12-6. ERROR HISTORY

How to view and delete error history records from the remote controller.

12-7. SELF-DIAGNOSIS

Procedures for performing self-diagnosis on the air conditioner system.

12-8. REMOTE CONTROLLER CHECK