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Heat Controller DMC24SB-1 User Manual

Heat Controller DMC24SB-1
73 pages
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Wall Mounted
Mini-Split System
Single-Zone
Air Conditioning/Heat Pump
Service Manual
DMC09SB-0/DMH09SB-0
DMC12SB-0/DMH12SB-0
DMC18SB-1/DMH18SB-1
DMC24SB-1/DMH24SB-1
Before servicing the unit, read the
“safety precautions” in this manual.
Only for authorized service personnel.
HEAT CONTROLLER, INC.

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Heat Controller DMC24SB-1 Specifications

General IconGeneral
BrandHeat Controller
ModelDMC24SB-1
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Precautions

Meanings of Symbols Used in Manual

Explains symbols like WARNING, CAUTION, and their meanings.

Installation Safety Guidelines

Covers safety during unit installation, including electrical work and mounting.

Safety Precautions - Operation

Operation Safety Measures

Details safety measures during unit operation, covering water, flammable gas, and ventilation.

Storm and Submersion Safety

Advises on actions during storms, hurricanes, and product submersion.

Environmental and Operational Cautions

Covers installation near neighbors, direct airflow, and special use cases.

Maintenance and Disuse Precautions

Provides safety guidelines for cleaning, battery replacement, and product disposal.

Dimensions

Indoor Unit Dimensions

Details the physical dimensions of the indoor unit for various models.

Indoor Unit Dimensions (Continued)

Continues detailing physical dimensions for indoor units.

Outdoor Unit Dimensions (9k, 12k)

Provides dimensions for the 9k and 12k outdoor units.

Outdoor Unit Dimensions (18k, 24k)

Provides dimensions for the 18k and 24k outdoor units.

Introduction

Symbols Used In This Manual

Explains symbols used throughout the manual for warnings and notices.

Unit Features Overview

Illustrates and labels the main components of the indoor and outdoor units.

Installation

Installation Parts and Tools

Lists necessary parts and tools for unit installation.

Installation Map and Components

Shows the layout of the installed unit and identifies key components and optional parts.

Refrigerant (R-410A) Confirmation

Details information and precautions regarding R-410A refrigerant used in the product.

Selecting the Best Location

Provides guidance on choosing optimal indoor and outdoor unit installation sites.

Piping Length and Elevation Guidelines

Specifies maximum piping length, elevation, and refrigerant addition rules.

Mounting the Installation Plate

Instructions for securely mounting the indoor unit's installation plate.

Drilling the Wall Hole for Piping

Details the procedure for drilling the wall hole for piping connections.

Flaring Work Procedure

Explains the correct method for flaring pipes to prevent refrigerant leakage.

Indoor Piping and Drain Hose Connection

Guides on connecting indoor unit piping, drain hose, and cables.

Indoor Piping and Insulation

Details connecting pipes and drain hose, plus insulating connections.

Indoor Unit Cable Connection

Instructions for inserting and securing the connecting cable to the indoor unit.

Indoor Piping/Drain Hose & Insulation

Covers connecting indoor pipes/drain hose and insulating connections.

Rerouting Piping and Drain Hose

Shows how to route piping and drain hose behind the indoor unit chassis.

Left Piping Installation Caution

Provides specific instructions and cautions for left-side piping installation.

Outdoor Drain Hose Connection

Details how to connect the drain hose to the outdoor unit.

Outdoor Piping Connection

Guides on connecting refrigerant pipes to the outdoor unit.

Outdoor Unit Cable Connection

Explains how to connect power supply and low voltage lines to the outdoor unit.

Wiring Cautions and Power Supply

Provides important cautions for wiring and power supply connections.

Drainage Checking Procedure

Details how to check the drainage system for proper water flow and leaks.

Proper Drain Piping Techniques

Illustrates correct and incorrect methods for drain hose installation.

Forming and Securing Piping

Instructions on insulating and securing refrigerant piping and drain hoses.

Air Purging

Air Purging Using Vacuum Pump

Explains the process of removing air and moisture using a vacuum pump.

Evacuation and Finishing Job

Steps for evacuation and completing the air purging process.

Refrigerant Charging

Details how to charge the system with the correct amount of refrigerant.

Test Running

Remote Control Preparation

Instructions for preparing and using the remote control.

Outdoor Unit Settlement

Guidance on securely mounting the outdoor unit.

Performance Evaluation

How to check the unit's performance after installation.

Pump Down Procedure

Steps for collecting refrigerant when relocating or servicing the unit.

Operation

Function of Controls

Explains the indicators and functions of the indoor unit controls.

Heating Mode Operation Details

Describes how the unit operates in heating mode, including pipe temp effects.

Defrost Control Mechanism

Explains how the unit manages defrost cycles to protect the evaporator.

Airflow Speed and Sleep Timer

Covers fan speed selection, sleep timer functions, and natural wind modes.

Jet Cool Mode Operation

Details the Jet Cool mode functionality for both Cooling Only and Heat Pump models.

Forced and Test Operation

Explains forced operation without remote and test operation procedures.

Auto Restart and Frost Protection

Describes auto restart function and evaporator pipe frost protection.

Display Function Indicators

Explains the operation and deicer indicators for heating and cooling models.

Self-diagnosis Function

Outlines error codes and checks for the self-diagnosis feature.

Remote Control Operations Guide

Details all buttons and functions of the remote control.

Disassembly

Indoor Unit Disassembly Steps

Provides instructions for disassembling the indoor unit, starting with the grille.

Indoor Unit Control Box and Evaporator Removal

Steps for removing the control box and evaporator from the indoor unit.

Indoor Unit Motor Cover and Fan Removal

Instructions for removing the motor cover and cross-flow fan.

Troubleshooting Guide

Refrigeration Cycle Diagrams

Illustrates the refrigerant flow for Cooling Only and Cooling & Heating models.

2-way and 3-way Valve Operation

Details shaft positions of 2-way/3-way valves for different operations.

Pumping Down Procedure

Step-by-step guide for pumping down refrigerant.

Balancing Refrigerant (Gas Leakage)

Procedure for balancing refrigerant and handling gas leakage.

Evacuation Procedure

Details the process of evacuating the system after refrigerant leakage.

Gas Charging After Evacuation

Instructions for charging refrigerant after the evacuation process.

Additional Gas Charging Guidance

Procedures for additional gas charging based on leakage and operating pressure.

Operating Suction Pressure Graph

Provides a graph to determine operating suction pressure based on temperatures.

Refrigeration Cycle Trouble Analysis

Analyzes issues based on temperature differences and operating current.

Electronic Parts Troubleshooting (9k Model)

Troubleshoots issues related to electronic components for the 9k model.

Electronic Parts Troubleshooting (18k Model)

Troubleshoots issues related to electronic components for the 18k model.

Remote Control Operation Issues

Diagnoses and resolves problems when the product does not operate with the remote.

Compressor/Outdoor Fan Drive Issues (9k Model)

Troubleshooting steps when the compressor or outdoor fan cannot drive.

Compressor/Outdoor Fan Drive Issues (18k Model)

Troubleshooting steps when the compressor or outdoor fan cannot drive for 18k model.

Indoor Fan Operation Issues

Diagnoses problems when the indoor fan does not operate.

Vertical Louver Operation Issues

Troubleshooting steps for when the vertical louver does not operate.

Communication Error Troubleshooting

Addresses issues related to communication errors between units.

Indoor Unit Connection Error Phenomena

Lists phenomena associated with connection errors in the indoor unit.

Outdoor Unit Connection Error Phenomena

Lists phenomena associated with connection errors in the outdoor unit.

Schematic Diagram

Indoor Unit Electric Control Device

Provides the schematic diagram for the indoor unit's electric control device.

Outdoor Unit Schematic (9k, 12k)

Presents the schematic diagram for the outdoor unit (9k, 12k models).

Outdoor Unit Schematic (18k, 24k)

Presents the schematic diagram for the outdoor unit (18k, 24k models).

Indoor Unit Wiring Diagram

Shows the wiring connections for the indoor unit.

Outdoor Unit Wiring Diagram (9k C/O)

Wiring diagram for the 9k C/O outdoor unit.

Outdoor Unit Wiring Diagram (12k H/P)

Wiring diagram for the 12k H/P outdoor unit.

Outdoor Unit Wiring Diagram (18k C/O)

Wiring diagram for the 18k C/O outdoor unit.

Outdoor Unit Wiring Diagram (18k H/P, 24k)

Wiring diagram for 18k H/P and 24k models.

Indoor Main PWB Assembly Location

Identifies the location of components on the indoor main PWB assembly.

Outdoor PWB Assembly Location (9k, 12k)

Identifies component locations on the outdoor PWB assembly for 9k/12k models.

Outdoor PWB Assembly Location (18k, 24k)

Identifies component locations on the outdoor PWB assembly for 18k/24k models.

Display Assembly Component Location

Shows the component layout for the display assembly.

Product Specifications

Cooling Only Specifications

Lists detailed specifications for cooling-only models.

Cooling & Heating Specifications

Lists detailed specifications for cooling & heating models.

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