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Mitsubishi Electric NTXUKS12A112BA User Manual

Mitsubishi Electric NTXUKS12A112BA
42 pages
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Models
NTXUKS09A112AA NTXUKS09A112BA
NTXUKS12A112AA NTXUKS12A112BA
NTXUKS18A112AA NTXUKS18A112BA
No. OBHT802
REVISED EDITION-B
INDOOR UNIT
SERVICE MANUAL
Outdoor unit service manual
NTXMMX•A•AA, NTXMPH•A•AA
Series (OBHT702, OCHT573)
PARTS CATALOG (OBBT802)
CONTENTS
1. TECHNICAL CHANGES ···································· 2
2. PART NAMES AND FUNCTIONS ····················· 3
3. SPECIFICATION ················································ 4
4. OUTLINES AND DIMENSIONS ························· 6
5. WIRING DIAGRAM ············································ 7
6. REFRIGERANT SYSTEM DIAGRAM ··············· 9
7. SERVICE FUNCTIONS ···································· 10
8. MICROPROCESSOR CONTROL ···················· 13
9. TROUBLESHOOTING ····································· 22
10. DISASSEMBLY INSTRUCTIONS ···················· 37
OBHT802 REVISED EDITION-A is void.
Revision B:
• Specications of NTXUKS09/12/18A1112AA and
NTXUKS09/12/18A1112BA have been corrected.
• Some descriptions have been modied.

Questions and Answers:

Mitsubishi Electric NTXUKS12A112BA Specifications

General IconGeneral
ModelNTXUKS12A112BA
Cooling Capacity3.5 kW
Heating Capacity4.0 kW
Power Supply220-240 V, 50 Hz
RefrigerantR32
Noise Level (Outdoor Unit)50 dB(A)

Summary

Specifications

Multi Connection Electrical and Physical Specs

Provides electrical and physical specs for multi-connection models.

Outlines and Dimensions

Wiring Diagrams

Indoor Unit Electrical Schematics

Electrical connection diagrams for various indoor unit models.

Refrigerant System Diagram

Refrigerant Flow Illustration

Illustrates refrigerant flow in cooling and heating modes.

Microprocessor Control

Troubleshooting

General Troubleshooting Precautions

Safety guidelines and initial steps for troubleshooting.

Failure Mode Recall and Diagnostic Tables

Recalling past errors and using diagnostic tables.

Component Testing and Troubleshooting Flowcharts

Criteria for checking parts and diagnostic flowcharts.

Disassembly Instructions

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