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Carrier 42LUVH045N - User Manual

Carrier 42LUVH045N
43 pages
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Air Conditioner Service Manual
DC Inverter Hi-Wall
Model
Discription
Refrigerant type
Power supply
42/38LUVH025N
9K HP R410A
1Ph,220-240V,50Hz
42/38LUVH035N
12K HP R410A
1Ph,220-240V,50Hz
42/38LUVH045N
18K HP R410A
1Ph,220-240V,50Hz
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Carrier 42LUVH045N Specifications

General IconGeneral
Model42LUVH045N
Cooling Capacity45000 BTU/h
RefrigerantR410A
Voltage208/230 V
Phase1
Net Weight (Outdoor Unit)121.3 lbs
Heating Capacity48000 BTU/h
Energy Efficiency Ratio (EER)11 BTU/W
Seasonal Energy Efficiency Ratio (SEER)17 SEER
Heating Seasonal Performance Factor (HSPF)9 HSPF
Operating Temperature (Heating)5 to 75 °F
Sound Pressure Level (Outdoor)55 dB
Power Supply208/230V, 60Hz

Summary

Safety and Precautionary Measures

Safety Precautions

General safety instructions for preventing injury and property damage.

Warnings

Specific warnings related to installation and operation of the air conditioner.

Air Conditioner Functions Overview

Unit Dimensions

Indoor Unit Dimensions

Detailed dimensions and diagrams for the indoor air conditioning units.

Outdoor Unit Dimensions

Detailed dimensions and diagrams for the outdoor air conditioning units.

Refrigerant Cycle Diagram

Electrical Wiring Diagrams

Indoor Unit Wiring

Schematics illustrating the electrical connections for indoor air conditioner units.

Outdoor Unit Wiring

Schematics illustrating the electrical connections for outdoor air conditioner units.

Installation Procedures and Details

Wrench Torque for Installation

Specifies correct torque values for installation fasteners to ensure proper assembly.

Cable Connection Guidelines

Recommended specifications and procedures for connecting the unit's power cables.

Pipe Length and Elevation Limits

Defines maximum allowable pipe lengths and elevation differences for installation.

Air Purging Procedure

Instructions for removing air from the refrigerant piping and indoor unit.

Pumping Down (Re-installation)

Procedure for recovering refrigerant before unit removal or re-installation.

Re-air Purging (Re-installation)

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

Refrigerant Balancing and Valve Operation

Guidance on balancing refrigerant charge using 2-way and 3-way valves.

System Evacuation Process

Detailed steps for creating a vacuum in the refrigeration system.

Refrigerant Charging Procedure

Instructions for charging the correct amount of refrigerant into the system.

Unit Capacity Specifications

Capacity Table for 42;38 LUVH025 N

Cooling and heating capacity data for the 42/38LUVH025N model under various conditions.

Capacity Table for 42;38 LUVH035 N

Cooling and heating capacity data for the 42/38LUVH035N model under various conditions.

Capacity Table for 42;38 LUVH045 N

Cooling and heating capacity data for the 42/38LUVH045N model under various conditions.

Electronic Functions and Operation

Technical Abbreviations

Definitions of common abbreviations used in the electronic function descriptions.

Indoor Unit Display Icons

Explanation of the various icons and indicators on the indoor unit's display panel.

Protection Mechanisms

Details on the built-in protection features for compressor and system safety.

Fan-Only Mode Operation

Describes how the unit operates exclusively in fan mode.

Cooling Mode Operation

Details on compressor frequency control and anti-freezing during cooling.

Drying Mode Operation

Specifics of operation and protections during the dehumidification (drying) mode.

Heating Mode Operation

Information on indoor fan action, anti-cold-wind, and compressor control in heating.

Automatic Mode Selection

Explanation of how the unit automatically selects cooling, heating, or fan-only mode.

Forced Operation Modes

Procedures for manual override and forced operation of the air conditioner.

4-Way Valve Functionality

How the 4-way valve operates in different modes like heating and cooling.

Outdoor Fan Speed Control

Details on the operation of the outdoor fan at varying speeds.

Timer Operation Settings

Guide to setting and using the timer functions for on/off operations.

Sleep Mode Functionality

Explanation of the sleep mode's automatic temperature adjustment and fan speed.

Auto-Restart Feature

How the unit restores previous settings after a power interruption.

Optional Air Purification Features

Description of optional Ionizer and Plasma dust collector functions.

Optional Outdoor Heating Cable

Information on the optional heating cable for de-icing the outdoor unit.

Troubleshooting and Component Checks

Indoor Unit Error Codes

List of error codes displayed by the indoor unit and their meanings.

Error Diagnosis and Solutions

Step-by-step troubleshooting guides for common error conditions.

Key Component Resistance Checks

Procedures for measuring resistance of critical components like motors and compressor.

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