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Mitsubishi Electric EHSC-VM2B User Manual

Mitsubishi Electric EHSC-VM2B
86 pages
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SERVICE MANUAL
HYDROBOX
No. OCH532
REVISED EDITION-A
CONTENTS
1. REFERENCE MANUAL
...................................
2
2. SAFETY PRECAUTION
...................................
3
3. SPECIFICATIONS
............................................
6
4. PART NAMES AND FUNCTIONS
..................
7
5. OUTLINES AND DIMENSIONS
......................
11
6. WIRING DIAGRAM
........................................
13
7. FIELD WIRING
...............................................
24
8. WATER SYSTEM DIAGRAM
.........................
28
9. CONTROLS
...................................................
31
10. TROUBLESHOOTING
...................................
51
11. DISASSEMBLY PROCEDURE
......................
68
12. SUPPLEMENTARY INFORMATION
.............
82
13. SERVICE AND MAINTENANCE
...................
83
January 2013
Note:
This manual describes
only service data of
Hydrobox.
RoHS compliant prod-
ucts have <G> mark on
the spec name plate.
R410A
MAIN CONTROLLER
PARTS CATALOG (OCB532)
HYDROBOX
Please void OCH532.
Revision:
• EHSC-VM2B.UK
and EHSC-TM9B.UK
have been added in
REVISED EDITION-A.
• Some descriptions have
been modified.
[Model name]
EHSC-VM2B
EHSC-VM6B
EHSC-YM9B
EHSC-TM9B
EHSC-VM6EB
EHSC-YM9EB
EHPX-VM2B
EHPX-VM6B
EHPX-YM9B
ERSC-VM2B
[Service Ref.]
EHSC-VM2B.UK
EHSC-VM6B.UK
EHSC-YM9B.UK
EHSC-TM9B.UK
EHSC-VM6EB.UK
EHSC-YM9EB.UK
EHPX-VM2B.UK
EHPX-VM6B.UK
EHPX-YM9B.UK
ERSC-VM2B.UK

Table of Contents

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Mitsubishi Electric EHSC-VM2B Specifications

General IconGeneral
BrandMitsubishi Electric
ModelEHSC-VM2B
CategoryAir Conditioner
LanguageEnglish

Summary

REFERENCE MANUAL

Outdoor Unit Service Manual

Lists service manuals for outdoor units.

SAFETY PRECAUTION

General Safety Precautions and Warnings

Outlines essential safety measures and warnings for unit operation and installation.

SPECIFICATIONS

Technical Specifications by Model

Details technical specifications for various Hydrobox models.

PART NAMES AND FUNCTIONS

EHSC Split System Component Identification

Identifies parts for EHSC split model systems.

EHPX Packaged System Component Identification

Identifies parts for EHPX packaged model systems.

ERSC Split System Component Identification

Identifies parts for ERSC split model systems.

OUTLINES AND DIMENSIONS

Technical Drawings and Service Access

Provides technical drawings and service access dimensions for unit installation.

WIRING DIAGRAM

Model-Specific Wiring Diagrams

Illustrates electrical connections for different Hydrobox models.

Dip Switch Settings

Details the configuration options available via dip switches on the control board.

FIELD WIRING

Wiring Options and Connections

Explains field wiring requirements for single and three-phase power connections.

WATER SYSTEM DIAGRAM

Hydrobox Water System Schematics

Shows water system diagrams for various Hydrobox models.

System Filling and Draining Procedures

Details the procedures for filling the primary circuit and draining the hydrobox.

CONTROLS

Main Controller Overview and Menu

Explains the main controller interface, buttons, icons, and menu structure.

Service Menu Functions and Settings

Details advanced functions accessible via the service menu for installers.

Auxiliary and Operation Settings

Covers settings for auxiliary parts and operational modes like heating and cooling.

TROUBLESHOOTING

Diagnosing Malfunctions via Error Codes

Guides users through identifying and resolving issues based on error codes.

Troubleshooting by Inferior Phenomena

Provides solutions for problems not indicated by specific error codes.

DISASSEMBLY PROCEDURE

Component Removal Procedures

Step-by-step instructions for disassembling various Hydrobox components.

SUPPLEMENTARY INFORMATION

Special Operations and Data

Covers refrigerant collection, boiler back-up, and remote controller settings.

SERVICE AND MAINTENANCE

Commissioning and Field Settings Records

Provides forms for recording commissioning and field settings.

Annual Maintenance Log and Parts

Details annual maintenance checks and parts requiring regular replacement or inspection.

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