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Coaire CIH-18M2Z - User Manual

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MODEL : CIC-09M1Z CIH-09M1Z
CIC-12M1Z CIH-12M1Z
CIC-18M2Z CIH-18M2Z
CIC-24M2Z CIH-24M2Z
SERVICE MANUAL
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Summary

Precautionary Measures

Safety Precautions

Instructions to prevent injury to users and property damage during operation.

Installation Warnings

Warnings related to installation, wiring, and handling to prevent hazards.

Unit Functions Overview

Indoor Unit Functions

Details operational modes and features of the indoor unit.

Outdoor Unit Functions

Details operational features of the outdoor unit.

Unit Dimensions

Indoor Unit Dimensions

Provides physical dimensions for the indoor unit.

Outdoor Unit Dimensions

Provides physical dimensions for the outdoor unit.

Technical Specifications

Refrigerant Cycle Diagram

Operation Limits

Cooling Operation Limits

Charts showing operational temperature ranges for cooling mode.

Heating Operation Limits

Charts showing operational temperature ranges for heating mode.

Wiring Diagrams

CIC-09 M1 Z Wiring Diagram

Electrical wiring schematics for CIC-09M1Z indoor and outdoor units.

CIH-09 M1 Z Wiring Diagram

Electrical wiring schematics for CIH-09M1Z indoor and outdoor units.

CIC-12 M1 Z Wiring Diagram

Electrical wiring schematics for CIC-12M1Z indoor and outdoor units.

CIH-12 M1 Z Wiring Diagram

Electrical wiring schematics for CIH-12M1Z indoor and outdoor units.

CIC-18 M2 Z Wiring Diagram

Electrical wiring schematics for CIC-18M2Z indoor and outdoor units.

CIH-18 M2 Z Wiring Diagram

Electrical wiring schematics for CIH-18M2Z indoor and outdoor units.

CIC-24 M2 Z Wiring Diagram

Electrical wiring schematics for CIC-24M2Z indoor and outdoor units.

CIH-24 M2 Z Wiring Diagram

Electrical wiring schematics for CIH-24M2Z indoor and outdoor units.

Installation Details and Procedures

Wrench Torque for Installation

Specifies torque values for tightening flare nuts during installation.

Cable Connection Guidelines

Guidelines for selecting power cord gauge based on current rating.

Pipe Length and Elevation Limits

Details maximum pipe length and vertical rise for different capacities.

Air Purging Procedure

Procedure for removing air from the refrigeration system for proper operation.

Pumping Down Procedure

Procedure for recovering refrigerant during unit removal or relocation.

Re-air Purging Procedure

Procedure for re-purging air after refrigerant discharge or system breach.

Balance Refrigerant Procedure

Method for balancing refrigerant charge in the system after installation.

Evacuation Procedure

Procedure for removing moisture and non-condensables using a vacuum pump.

Gas Charging Procedure

Procedure for adding the correct amount of refrigerant to the system.

Electronic Functions

Electronic Control Working Environment

Specifies voltage, frequency, and ambient conditions for electronic control operation.

Proper Symbols and Their Meaning

Explains symbols used for temperature sensors and operational states.

Unit Functions

Lists the various functions and features controlled by the electronic system.

Protection Mechanisms

Details the protection mechanisms and error conditions of the unit.

Fan Only Mode

Describes operation when only the fan is active without cooling or heating.

Cooling Mode Operation

Explains the operation of the unit in cooling mode, including fan control.

Dehumidifying Mode

Details the operation and protection for dehumidifying mode.

Heating Mode Operation

Explains the operation of the unit in heating mode, including fan and valve control.

Defrosting Mode (Heating)

Conditions and actions for the automatic defrosting cycle in heating mode.

Auto Mode Selection

How the unit automatically selects cooling, heating, or fan-only modes.

Force Cooling Function

Procedure for manually forcing the unit into cooling operation.

Sleep Mode (Economic)

Energy-saving mode adjusting temperature and fan speed automatically.

Auto Restart Function

Automatically resumes operation after a power interruption.

Turbo Mode Operation

Function to quickly reach the set temperature.

Ionizer (Air Clean) Function

Operation of the air purification function.

Follow Me Function Status

Indicates the 'Follow me' function is not supported.

Model and Parameters

Troubleshooting Guide

Display Board Indicators

Explanation of indicators and symbols on the unit's display board.

Troubleshooting Failure Phenomena

Tables detailing failure phenomena and corresponding indicator status.

Diagnostic Chart

Flowchart for diagnosing unit operation issues based on power and voltage checks.

Resetting Phenomenon Diagnosis

Procedure to diagnose and resolve frequent automatic resetting issues.

Indoor Fan Speed Control Issues

Troubleshooting steps for indoor fan speed issues for specific models.

Temperature Sensor Error Troubleshooting

Troubleshooting for errors related to temperature sensors.

Compressor Over Current Protection

Diagnostic steps for compressor over current protection issues.

EEROM Error Diagnosis

Identifies EEROM errors and potential indoor PCB defects.

Outdoor Unit Protection Faults

Troubleshooting for outdoor unit protection faults and power supply issues.

Indoor Unit Communication Error

Steps to diagnose and resolve indoor unit communication errors.

Temperature Sensor Characteristics

Summary

Precautionary Measures

Safety Precautions

Instructions to prevent injury to users and property damage during operation.

Installation Warnings

Warnings related to installation, wiring, and handling to prevent hazards.

Unit Functions Overview

Indoor Unit Functions

Details operational modes and features of the indoor unit.

Outdoor Unit Functions

Details operational features of the outdoor unit.

Unit Dimensions

Indoor Unit Dimensions

Provides physical dimensions for the indoor unit.

Outdoor Unit Dimensions

Provides physical dimensions for the outdoor unit.

Technical Specifications

Refrigerant Cycle Diagram

Operation Limits

Cooling Operation Limits

Charts showing operational temperature ranges for cooling mode.

Heating Operation Limits

Charts showing operational temperature ranges for heating mode.

Wiring Diagrams

CIC-09 M1 Z Wiring Diagram

Electrical wiring schematics for CIC-09M1Z indoor and outdoor units.

CIH-09 M1 Z Wiring Diagram

Electrical wiring schematics for CIH-09M1Z indoor and outdoor units.

CIC-12 M1 Z Wiring Diagram

Electrical wiring schematics for CIC-12M1Z indoor and outdoor units.

CIH-12 M1 Z Wiring Diagram

Electrical wiring schematics for CIH-12M1Z indoor and outdoor units.

CIC-18 M2 Z Wiring Diagram

Electrical wiring schematics for CIC-18M2Z indoor and outdoor units.

CIH-18 M2 Z Wiring Diagram

Electrical wiring schematics for CIH-18M2Z indoor and outdoor units.

CIC-24 M2 Z Wiring Diagram

Electrical wiring schematics for CIC-24M2Z indoor and outdoor units.

CIH-24 M2 Z Wiring Diagram

Electrical wiring schematics for CIH-24M2Z indoor and outdoor units.

Installation Details and Procedures

Wrench Torque for Installation

Specifies torque values for tightening flare nuts during installation.

Cable Connection Guidelines

Guidelines for selecting power cord gauge based on current rating.

Pipe Length and Elevation Limits

Details maximum pipe length and vertical rise for different capacities.

Air Purging Procedure

Procedure for removing air from the refrigeration system for proper operation.

Pumping Down Procedure

Procedure for recovering refrigerant during unit removal or relocation.

Re-air Purging Procedure

Procedure for re-purging air after refrigerant discharge or system breach.

Balance Refrigerant Procedure

Method for balancing refrigerant charge in the system after installation.

Evacuation Procedure

Procedure for removing moisture and non-condensables using a vacuum pump.

Gas Charging Procedure

Procedure for adding the correct amount of refrigerant to the system.

Electronic Functions

Electronic Control Working Environment

Specifies voltage, frequency, and ambient conditions for electronic control operation.

Proper Symbols and Their Meaning

Explains symbols used for temperature sensors and operational states.

Unit Functions

Lists the various functions and features controlled by the electronic system.

Protection Mechanisms

Details the protection mechanisms and error conditions of the unit.

Fan Only Mode

Describes operation when only the fan is active without cooling or heating.

Cooling Mode Operation

Explains the operation of the unit in cooling mode, including fan control.

Dehumidifying Mode

Details the operation and protection for dehumidifying mode.

Heating Mode Operation

Explains the operation of the unit in heating mode, including fan and valve control.

Defrosting Mode (Heating)

Conditions and actions for the automatic defrosting cycle in heating mode.

Auto Mode Selection

How the unit automatically selects cooling, heating, or fan-only modes.

Force Cooling Function

Procedure for manually forcing the unit into cooling operation.

Sleep Mode (Economic)

Energy-saving mode adjusting temperature and fan speed automatically.

Auto Restart Function

Automatically resumes operation after a power interruption.

Turbo Mode Operation

Function to quickly reach the set temperature.

Ionizer (Air Clean) Function

Operation of the air purification function.

Follow Me Function Status

Indicates the 'Follow me' function is not supported.

Model and Parameters

Troubleshooting Guide

Display Board Indicators

Explanation of indicators and symbols on the unit's display board.

Troubleshooting Failure Phenomena

Tables detailing failure phenomena and corresponding indicator status.

Diagnostic Chart

Flowchart for diagnosing unit operation issues based on power and voltage checks.

Resetting Phenomenon Diagnosis

Procedure to diagnose and resolve frequent automatic resetting issues.

Indoor Fan Speed Control Issues

Troubleshooting steps for indoor fan speed issues for specific models.

Temperature Sensor Error Troubleshooting

Troubleshooting for errors related to temperature sensors.

Compressor Over Current Protection

Diagnostic steps for compressor over current protection issues.

EEROM Error Diagnosis

Identifies EEROM errors and potential indoor PCB defects.

Outdoor Unit Protection Faults

Troubleshooting for outdoor unit protection faults and power supply issues.

Indoor Unit Communication Error

Steps to diagnose and resolve indoor unit communication errors.

Temperature Sensor Characteristics

Coaire CIH-18M2Z Specifications

General IconGeneral
BTU18000
RefrigerantR410A
TypeInverter
Noise Level (Outdoor)52 dB
Cooling Capacity18000 BTU/h

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