Midea MHC-V7W/D2N1

INSTALLATION & OWNER’S MANUAL
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Before use, please carefully read this manual and keep it for future reference.
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Original instructions

Midea MHC-V7W/D2N1 Specifications

General

Brand	Midea
Model	MHC-V7W/D2N1
Category	Heat Pump
Language	English

Summary

1 INTRODUCTION

1.1 General Information

3 SAFETY CONSIDERATIONS

Safety Symbol Meanings

Defines DANGER, WARNING, CAUTION, and NOTE symbols used for hazard communication.

General Safety Precautions

Details critical safety warnings for electrical, handling, and installation practices.

9.6 Field Wiring

Electrical Wiring Precautions

Highlights essential precautions for electrical wiring to ensure safety and prevent damage.

Power Supply Wiring Precautions

Details crucial precautions related to the power supply wiring for safety.

External Component Wiring

10 START-UP AND CONFIGURATION

10.1 Climate Related Curves

10.2 DIP Switch Settings Overview

10.3 Initial Start-up and Pre-Operation Checks

Covers initial start-up procedures, pre-operation checks, power-up, and pump speed settings.

10.7 Field Settings

Details how to configure unit parameters via the FOR SERVICEMAN menu for optimal operation.

10.7 Field Settings

Operational Mode Settings

Configures DHW, Cool, Heat, and Auto modes, including temperature and ambient limits.

System Configuration Settings

11 TEST RUN AND FINAL CHECK

11.1 Final Check Procedures

Lists essential checks to verify the installation and unit setup before initial operation.

11.2 Manual Test Run Operations

Details how to perform manual test runs for various unit functions like purging and heating.

Special Functions

Auto Restart Function

12 MAINTENANCE AND SERVICE

General Maintenance Checks

Outlines regular checks for water pressure, filters, and valves for optimal unit availability.

Unit Switch Box and Glycol Management

13 TROUBLESHOOTING

13.1 General Guidelines and Initial Checks

Provides initial troubleshooting steps, visual inspection, and symptom analysis.

Common Unit Operation Symptoms

Addresses issues like incorrect heating/cooling, compressor start failures, and pump noise.

Pressure and Capacity Issues

Comprehensive Error Code Guide

Lists and explains error codes (E, H, P) and their causes/corrections.