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Haier InoSens MRV SI AU072FPEUA User Manual

Haier InoSens MRV SI AU072FPEUA
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Service Manual
MRV SI
SYJS-03-2021 REV.A Edition: 2021-03

Table of Contents

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Haier InoSens MRV SI AU072FPEUA Specifications

General IconGeneral
BrandHaier
ModelInoSens MRV SI AU072FPEUA
CategoryAir Conditioner
LanguageEnglish

Summary

Specifications

Power Supply Specifications

Details electrical supply requirements and ratings for the unit.

Function Parts Layout

Refrigerant Circuit

Wiring Diagram

AU032FSEUA Wiring Diagram

Illustrates the wiring diagram for the AU032FSEUA model.

AU052FPEUA/AU072FPEUA Wiring Diagrams

Illustrates wiring diagrams for AU052FPEUA/AU072FPEUA models.

Performance Curves

Selection Procedure

Operation Range

Outdoor Installation

Outdoor Unit Installation Safety Precautions

Lists critical safety warnings and precautions for installing the outdoor unit.

Refrigerant Piping Installation and Testing

Covers pipe connection, insulation, specifications, leakage test, and evacuation procedures.

Valve Operation, Refrigerant Charging, and Wiring

Details valve operation, refrigerant charging, and electrical wiring for outdoor units.

Dip Switch Setting

Outdoor Unit Control

Compressor Startup Control

Details the control logic for compressor startup, including timing and protections.

Compressor Output Control

Explains compressor output control based on temperature and pressure.

Defrosting Control Logic

Details the conditions for entering and quitting defrost mode.

Oil Return Control (Cooling Mode)

Describes oil return control logic for cooling mode.

Oil Return Control (Heating Mode)

Explains oil return control logic for heating mode.

Failure Codes

Inverter Outdoor Unit Failure Code List

Lists failure codes related to inverter outdoor units and their descriptions.

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