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Carrier 42QCR012713 User Manual

Carrier 42QCR012713
65 pages
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Cover
Service Manual
AIR CONDITIONER
Hi-Wall Type
42/38KCR009713
42/38KCR012713
42/38KCR018713
42/38QCR009713
42/38QCR012713
42/38QCR018713

Table of Contents

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Carrier 42QCR012713 Specifications

General IconGeneral
BrandCarrier
Model42QCR012713
CategoryAir Conditioner
LanguageEnglish

Summary

Precaution and Safety

Safety Precautions

Instructions to prevent injury, damage, and harm from incorrect operation.

Warnings, Cautions, and Operational Guidelines

Important warnings, cautions, and operational guidelines for safe use and installation.

Air Conditioner Functions

Indoor Unit Functions

Details on the functions and operations of the indoor unit.

Outdoor Unit Functions

Details on the functions and operations of the outdoor unit.

Unit Dimensions

Indoor Unit Dimensions

Physical dimensions of the indoor unit, including width, height, and depth.

Outdoor Unit Dimensions

Physical dimensions of the outdoor unit, including width, height, depth, and pipe lengths.

Refrigerant Cycle Diagrams

Cooling Only Cycle

Diagram illustrating the refrigerant flow for cooling-only operation.

Heat Pump Mode Cycle

Diagram illustrating the refrigerant flow for heat pump operation.

Operation Limits

Cooling Operation Limits

Defines the operational temperature limits for cooling mode.

Heating Operation Limits

Defines the operational temperature limits for heating mode.

Wiring Diagrams

Indoor Unit Wiring Diagram

Electrical connections and layout for the indoor unit.

Outdoor Unit Wiring Diagram

Electrical connections and layout for the outdoor unit.

Installation Details

Wrench Torque Sheet

Specifies torque values for various pipe diameters during installation.

Connecting Cables

Guidelines for selecting and connecting power cords based on unit capacity.

Pipe Length and Elevation

Details on allowable pipe lengths and elevation differences for installation.

Air Purging Procedure

Procedure for removing air and moisture from the refrigerant piping system.

Pumping Down Procedure

Method for recovering refrigerant by operating the compressor before disconnection.

Re-air Purging Procedure

Procedure for purging air from the system after re-installation.

Balance Refrigerant Procedure

Steps to balance refrigerant charge between indoor and outdoor units.

Evacuation Procedure

Process of removing non-condensable gases and moisture using a vacuum pump.

Gas Charging Procedure

Procedure for charging the system with the correct amount of refrigerant.

Electronic Functions

8.1 Symbols and Meanings

Definitions of symbols and abbreviations used in electronic control descriptions.

8.2 Function Overview

Overview of various electronic functions and modes of the air conditioner.

8.3 Protection Mechanisms

Details on the protective functions and safety mechanisms of the unit.

8.4 Protection Details

Specific protection features like compressor delay, sensor protection, and fan speed control.

8.5 Fan-Only Mode

Explanation of the fan-only operational mode.

8.6 Cooling Mode Operation

Details on the compressor and fan operation during cooling mode.

8.7 Dehumidifying Mode

Explanation of the dehumidification function, including valve and fan actions.

8.8 Heating Mode

General operation, valve actions, and compressor/fan control in heating mode.

8.9 Defrosting Mode

Conditions, timing, and actions related to the defrosting cycle in heating mode.

8.10 Auto Mode

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

8.11 Force Cooling Function

Details on activating and operating the forced cooling mode.

8.12 Sleep Mode

Features and operation of the sleep mode for energy saving.

8.13 Turbo Mode

Functionality of the turbo mode for rapid cooling.

8.14 Auto Restart Function

How the unit resumes operation after a power failure.

Model and Parameters

Model and Parameter Specifications

Table listing operational parameters and model-specific values for different units.

Troubleshooting Guide

10.1 Display Board Indicators

Explanation of operation indicators on the display board for different modes.

10.2 Troubleshooting Table

Table of failure phenomena and corresponding indicator status for diagnosis.

10.3 Diagnostic Chart

Flowchart to diagnose operational issues when no indicators are lit.

10.4-10.6 Specific Troubleshooting Scenarios

Diagnosing issues based on operational phenomena and specific lamp states.

10.7-10.9 Lamp Status Faults

Diagnosing faults indicated by specific combinations of operation and timer lamp states.

Temperature Sensor Characteristics

Temperature Sensor Resistance Table

Table correlating temperature (Celsius) with resistance (kΩ) for sensors.

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