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Mitsubishi Electric CITY MULTI PEFY-P06NMAU-E User Manual

Mitsubishi Electric CITY MULTI PEFY-P06NMAU-E
42 pages
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Air-Conditioners
TECHNICAL & SERVICE MANUAL
Models
PEFY-P06NMAU-E, PEFY-P27NMAU-E
PEFY-P08NMAU-E, PEFY-P30NMAU-E
PEFY-P12NMAU-E, PEFY-P36NMAU-E
PEFY-P15NMAU-E, PEFY-P48NMAU-E
PEFY-P18NMAU-E, PEFY-P54NMAU-E
PEFY-P24NMAU-E
For use with R410A, & R22
2009
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Mitsubishi Electric CITY MULTI PEFY-P06NMAU-E Specifications

General IconGeneral
BrandMitsubishi Electric
ModelCITY MULTI PEFY-P06NMAU-E
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Precautions

Symbol Explanations

Explains symbols used for warnings and cautions in the manual.

R410A Refrigerant Handling Precautions

Details precautions for handling R410A refrigerant, including piping and tools.

Product Features

Model Capacity Overview

Lists models and their cooling/heating capacities in BTU/h and kW.

Components and Functions

Indoor Unit Description

Describes the indoor unit, including inlet and outlet air flow.

Remote Controller Operation Guide

Details the PAR-21MAA remote controller and its buttons.

Remote Controller Display Indicators

Explains the various indicators and symbols shown on the remote controller display.

Technical Specifications

Model Specifications: PEFY-P06 to P15

Provides detailed specifications like power, capacity, dimensions, and components for specific models.

Model Specifications: PEFY-P18 to P30

Details specifications for PEFY-P18, P24, P27, and P30 NMAU-E models.

Model Specifications: PEFY-P36 to P54

Provides specifications for PEFY-P36, P48, and P54 NMAU-E models.

Electrical Component Specifications

Component Details and Resistance Values

Lists electrical components and their specifications for various models.

Unit Outlines and Dimensions

Installation Clearances and Unit Dimensions

Illustrates unit dimensions, required space for maintenance, and clearances.

Wiring Diagram

Indoor Unit Wiring Schematic

Depicts the internal wiring schematic of the indoor control board and connections.

Wiring Diagram Symbol Definitions

Defines symbols used in the wiring diagram for clarity and understanding.

Refrigerant System Diagram

Refrigerant Circuit and Pipe Size Specifications

Illustrates the refrigerant flow and specifies pipe diameters for different models.

Microprocessor Control Modes

Cool Operation Mode Details

Explains how to operate the unit in cool mode, including thermoregulation and anti-freezing control.

Dry Operation Mode Details

Details the operation of the unit in dry mode, covering thermoregulation and fan control.

Fan Operation Mode Details

Describes how the fan operates independently of other modes, including speed settings and drain pump control.

Heat Operation Mode Details

Explains heat operation, including thermoregulation, fan control, and hot adjust mode.

Auto Operation Mode Details

Details the automatic cool/heat changeover operation, including mode change conditions.

Unit Stopped Control Functions

Drain Pump and Float Switch Operation (Stopped)

Explains drain pump and float switch operation when the unit is stopped.

Heater Control Functionality

Heater Control Specifications and DIP Settings

Outlines heater control based on outdoor conditions and DIP S/W settings.

Heater Control Patterns and Fan Configuration

Details heater output patterns and fan control settings for different unit types.

Optional Parts Installation Guide

PAC-YU25HT External Heater Adapter Installation

Describes the installation of the PAC-YU25HT for driving an electric heater with the air conditioner.

External Heater Adapter Wiring Instructions

Provides wiring diagrams and restrictions for the external heater adapter installation.

Troubleshooting and Diagnostics

Component Check Methods

Details methods for checking components like thermistors, fan motors, and linear expansion valves.

Linear Expansion Valve (LEV) Operation Overview

Explains the operation of the LEV and its connection to the indoor control board.

LEV Troubleshooting and Fault Diagnosis

Describes LEV operation, common faults, and remedies for locked or shorted LEV.

LEV Leak and Connector Faults

Covers troubleshooting for LEV leaks, connector issues, drain mechanism, and float switch.

DC Fan Motor Troubleshooting Procedures

Provides a troubleshooting guide for the indoor unit's DC fan motor when it fails to run.

Address Switch Configuration

Explains how to set addresses using rotary switches on the indoor unit control board.

Control Board Voltage Test Point Identification

Identifies key voltage test points on the indoor control board for diagnostics.

General Dipswitch Setting Guidelines

Details factory default dipswitch settings for functions like thermistor, filter, and intake air.

Dipswitch Settings for Capacity and Model

Explains dipswitch settings for capacity code and model selection.

Dipswitch Settings for Voltage and Pressure

Describes how to set the power voltage using dipswitches on the indoor unit.

Dipswitch Settings for Address and Connection

Covers address setting for network remotes and connection number settings.

Disassembly and Component Removal

Control Box Cover Removal Procedure

Provides steps for removing the control box cover and accessing the control box.

Intake Air Thermistor Removal Steps

Details the procedure for removing the intake air thermistor holder and thermistor.

Drainpan Removal and Filter Access

Explains how to remove the filter, bottom plate, and drainpan from the unit.

Pipe Thermistor Removal Procedures

Describes the process for removing heat exchanger covers and thermistors for gas and liquid pipes.

Fan and Fan Motor Disassembly

Details the steps for removing the fan casing, motor cable, fan motor, and Sirocco fan.

Heat Exchanger Removal Instructions

Provides instructions for removing the heat exchanger cover and the heat exchanger itself.

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