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Carrier 38NYV025H - User Manual

Carrier 38NYV025H
115 pages
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R410A
FILE NO. SVM-07013-1
SERVICE MANUAL
SPLIT TYPE
Indoor Unit Outdoor Unit
<High Wall, Heat Pump Type> <Heat Pump Type>
42NQV025H 38NYV025H
42NQV035H 38NYV035H
42NQV035M 38NYV035M
42NQV045H
38NYV045H
42NQV045M
38NYV045M
Revised May, 2007

Table of Contents

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Carrier 38NYV025H Specifications

General IconGeneral
Model38NYV025H
Cooling Capacity (Ton)2
Energy Efficiency Ratio (EER)12.5
RefrigerantR-410A
Phase1
Compressor TypeInverter
Cooling Capacity (BTU)24000
Heating Seasonal Performance Factor (HSPF)10.0
Voltage (V)208/230
StagesVariable

Summary

SAFETY PRECAUTIONS

SPECIFICATIONS

2.1 Specification Details

Detailed technical specifications for unit models including capacity, power, and dimensions.

2-2. Operation Characteristic Curves

Graphs showing performance characteristics like compressor speed versus current.

2-3. Capacity Variation Ratio

Charts detailing capacity changes based on outdoor temperature.

REFRIGERANT R410 A Handling

3-1. Installation and Servicing Safety

Critical safety guidelines for R410A refrigerant installation and servicing.

3-2. Refrigerant Piping Installation

Procedures for refrigerant piping installation, materials, and joints.

3-3. Required Tools for R410 A

List of specialized tools necessary for R410A refrigerant systems.

3-4. Recharging of Refrigerant

Step-by-step procedure for recharging refrigerant into the system.

3-5. Brazing of Pipes

Guidelines and techniques for brazing refrigerant pipes.

CONSTRUCTION VIEWS

4-1. Indoor Unit Construction Details

Diagrams showing the dimensions and physical layout of the indoor unit.

4-2. Outdoor Unit Construction Details

Diagrams showing the dimensions and physical layout of the outdoor unit.

WIRING DIAGRAMS

5-1. Wiring Diagram for Models (1)

Electrical schematic for specific indoor and outdoor unit models.

5-2. Wiring Diagram for Models (2)

Electrical schematic for other indoor and outdoor unit models.

ELECTRICAL PARTS SPECIFICATIONS

6-1. Indoor Unit Electrical Components

Specifications for indoor unit electrical parts like motors and sensors.

6-2. Outdoor Unit Electrical Components

Specifications for outdoor unit electrical parts like compressor and motors.

REFRIGERANT CYCLE DIAGRAM

7-1. Refrigerant Cycle Overview Diagram

Diagram illustrating the refrigerant flow through the system.

7-2. Cooling and Heating Operation Data

Key operational parameters for cooling and heating modes.

CONTROL BLOCK DIAGRAMS

8-1. Indoor Unit Control Logic

Block diagram of the indoor unit's control system and functions.

8-2. Outdoor Unit Control Logic

Block diagram of the outdoor unit's control system.

OPERATION DESCRIPTION

9-1. Air Conditioner Control Outline

Overview of the air conditioner's control system and component roles.

9-2. Detailed Operation Modes

Explanation of various operating modes like cooling, heating, fan, and timer.

9-5. Remote Controller Functions

Details on remote control buttons and their operational functions.

INSTALLATION PROCEDURE

10-1. Installation Diagrams and Parts

Visual guides and lists of components for unit installation.

10-3. Indoor Unit Installation Steps

Step-by-step instructions for mounting and installing the indoor unit.

10-4. Outdoor Unit Installation Steps

Step-by-step instructions for mounting and installing the outdoor unit.

10-5. Test Operation Procedures

Steps for performing system tests after installation is complete.

TROUBLESHOOTING GUIDE

11-1. Initial Confirmation and Primary Judgment

Basic checks and initial troubleshooting steps for system issues.

11-3. Indoor Unit Fault Indicators and Diagnosis

Interpreting LED error codes and performing self-diagnosis.

11-5. Symptom-Based Troubleshooting

Diagnosing issues based on observed symptoms and flowcharts.

11-6. Specific Error Code Analysis

Detailed analysis of specific error codes like 1C and 1E.

11-7. Component-Level Troubleshooting

Troubleshooting procedures for specific components like motors and boards.

MAIN PARTS REPLACEMENT

12-1. Indoor Unit Parts Replacement

Step-by-step guide for replacing components of the indoor unit.

12-2. Outdoor Unit Parts Replacement

Step-by-step guide for replacing components of the outdoor unit.

EXPLODED VIEWS AND PARTS LIST

13-1. Indoor Unit Parts List

Exploded views and list of parts for the indoor unit.

13-3. Outdoor Unit Parts List

Exploded views and list of parts for the outdoor unit.

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