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Haier 2U18MS2VHB User Manual

Haier 2U18MS2VHB
140 pages
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Ductless Multi-Split Heat Pump
Service Manual
Design may vary by model number.
Please read this manual before using the heat pump.
Keep this user manual for future reference.
Table of Contents
Introduction ............................................................................................................... A-1
Outdoor Technical Overview ...................................................................................... B-1
Wall Mount Technical Overview ..................................................................................C-1
Compact Cassette Technical Overview ......................................................................D-1
Large Cassette Technical Overview ............................................................................ E-1
Slim Duct Technical Overview .................................................................................... F-1
Mid-Static Ducted Technical Overview .......................................................................G-1
Medium Static Ducted (Pro Series) Technical Overview ..............................................H-1
Console Technical Overview ........................................................................................ I-1
Troubleshooting & Reference ..................................................................................... J-1
Outdoor
2U18MS2VHB
3U24MS2VHB
4U36MS2VHB
Indoor
Wall Mount - Highwall
AW07LC2VHB
AW09LC2VHB
AW12LC2VHB
AW18LC2VHB
AW24LP2VHA
2’x2’ Compact Cassette
AB09SC2VHA
AB12SC2VHA
AB18SC2VHA
3’x3’ Large Cassette
AL24LP2VHA
Slim Duct
AD07SL2VHB
AD09SL2VHB
AD12SL2VHB
AD18SL2VHB
Mid-Static Ducted
USYM09UCDSA
USYM12UCDSA
USYM18UCDSA
USYM24UCDSA
Medium Static Ducted
AM24LP2VHA
Console
USYF09UCDWA
USYF12UCDWA
USYF18UCDWA
Before troubleshooting or servicing equipment, review equipment installation guides
and conrm ALL installation requirements & specications have been met. Including,
but not limited to: wiring, clearance, ducting (where applicable), power, and line set
requirements. Correct any installation issues before continuing.

Table of Contents

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Haier 2U18MS2VHB Specifications

General IconGeneral
Model2U18MS2VHB
CategoryHeat Pump
Coefficient of Performance (COP)3.8
Refrigerant TypeR410A
Phase1
Voltage208/230V
Noise Level (Outdoor)52 dB
Cooling Capacity18000 BTU/h
Heating Capacity19000 BTU/h
Operating Temperature (Cooling)5°C to 43°C
Operating Temperature (Heating)5-86°F

Summary

Introduction

Safety & Precautions

Details safety guidelines and warnings for installation and operation.

Specifications

Provides technical specifications for various outdoor and indoor units.

Functions and Control

Explains the operational modes, controls, and functions of the system.

Outdoor Technical Overview

Components

Details the various components of the outdoor unit.

Operations

Explains the operational sequences for cooling and heating modes.

Testing

Outlines procedures for testing key outdoor unit components.

Wiring Diagrams

Provides wiring diagrams for the outdoor unit.

DIP Switch Settings

Details DIP switch configurations for the outdoor unit.

Error Codes

Lists and explains error codes related to outdoor unit malfunctions.

Wall Mount Technical Overview

Components

Identifies and describes the parts within the wall mount indoor unit.

Testing

Provides guidance on testing components and diagnosing issues.

Wiring Diagram

Details wiring connections for the wall mount unit.

Error Codes

Lists error codes for the wall mount unit.

Compact Cassette Technical Overview

Components

Identifies and describes the parts within the compact cassette indoor unit.

Testing

Outlines procedures for testing compact cassette unit components and functions.

Wiring Diagram & DIP Switch Settings

Details wiring and DIP switch configurations for the compact cassette unit.

Error Codes

Lists error codes for the compact cassette unit.

Large Cassette Technical Overview

Components

Identifies and describes the parts within the large cassette indoor unit.

Testing

Outlines procedures for testing large cassette unit components and functions.

Wiring Diagram

Details wiring connections for the large cassette unit.

DIP Switch Settings

Details DIP switch configurations for the large cassette unit.

Error Codes

Lists error codes for the large cassette unit.

Slim Duct Technical Overview

Components

Identifies and describes the parts within the slim duct indoor unit.

Ductwork/Grilles

Explains basic duct configurations and installation methods.

Testing

Outlines procedures for testing slim duct unit components and functions.

Wiring Diagram & DIP Switch Settings

Details wiring and DIP switch configurations for the slim duct unit.

Error Codes

Lists error codes for the slim duct unit.

Mid-Static Ducted Technical Overview

Components

Identifies and describes the parts within the mid-static ducted indoor unit.

Fresh Air Function

Explains the operation of the fresh air intake function in different modes.

Ductwork/Grilles

Explains basic duct configurations and installation methods.

Testing

Outlines procedures for testing mid-static ducted unit components and functions.

Wiring Diagram

Details wiring connections for the mid-static ducted unit.

DIP Switch Settings

Details DIP switch configurations for the mid-static ducted unit.

Error Codes

Lists error codes for the mid-static ducted unit.

Medium Static Ducted (Pro Series) Technical Overview

Components

Identifies and describes the parts within the medium static ducted indoor unit.

Ductwork/Grilles

Explains basic duct configurations and installation methods.

Testing

Outlines procedures for testing medium static ducted unit components and functions.

Wiring Diagram

Details wiring connections for the medium static ducted unit.

DIP Switch Settings

Details DIP switch configurations for the medium static ducted unit.

Error Codes

Lists error codes for the medium static ducted unit.

Console Technical Overview

Components

Identifies and describes the parts within the console indoor unit.

Testing

Outlines procedures for testing console unit components and functions.

Wiring Diagram/DIP Switch Settings

Details wiring and DIP switch configurations for the console unit.

Error Codes

Lists error codes for the console unit.

Troubleshooting & References

Special Functions and Settings

Explains special operational functions and temperature compensation adjustments.

Technical Data Tables

Provides reference tables for unit compatibility, sensor resistance, and component specifications.

Error Code Diagnostics

Lists and explains error codes and their corresponding symptoms across unit types.

Troubleshooting Flow Charts

Offers step-by-step diagnostic flowcharts for common system malfunctions.

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