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Heat Controller BHD-501-G User Manual

Heat Controller BHD-501-G
17 pages
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Heat Controller, Inc. 1900 Wellworth Ave. Jackson, MI 49203 (517)787-2100 www.heatcontroller.com
SERVICE MANUAL
Portable Dehumidifer Series
with R-410A:
BHD-301-G
BHD-501-G
BHD-651-G
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Heat Controller BHD-501-G Specifications

General IconGeneral
Product colorWhite
Water tank capacity10 L
Water level indicatorYes
Suitable for room area up to232 m²
Suitable for room volume up to- m³
Weight and Dimensions IconWeight and Dimensions
Depth321 mm
Width394 mm
Height622 mm
Weight17690 g

Summary

Preface and Unit Features

Safety Precautions and Insulation Resistance Test

Safety guidelines for servicing the unit, including unplugging power and insulation resistance testing.

Unit Features

Lists key features of the dehumidifier, such as auto-defrosting, wide temperature range, and LED display.

Control Locations

Identifies the location of controls and indicator lights on the unit's panel.

Outside Dimensions

Product Installation and Operation

Installation Instructions

Guidance on installing the portable dehumidifier in a suitable location, ensuring proper airflow.

Operating Conditions

Specifies the optimal environmental conditions for operating the dehumidifier.

Turning Unit On/Off and Water Tank Operation

Instructions for powering the unit on/off and details on using the internal water tank.

Continuous Drainage Operation

Instructions for connecting a drain hose for continuous condensate removal.

Maintenance Procedures

General maintenance precautions and procedures for cleaning the unit, air filter, and water tank.

Electronic Functions and Controls

Powering On the Unit and Self-Diagnosis

Describes the self-diagnosis process and initial state when the unit is powered on.

Setting Relative Humidity

How to adjust humidity settings and how the compressor/fan operate based on humidity levels.

Continuous Dehumidification Mode

Explanation of the continuous mode, setting to 35% humidity, and fan operation.

Powering Off the Unit

Process for turning the unit off, including defrost cycles and self-diagnosis upon restart.

Compressor Protection

Details the 3-minute time delay for compressor restart to prevent damage.

Protection and Failure Modes

Explains various protection mechanisms like water full, anti-icing, and sensor failures.

Basic Test Procedures

Defective Compressor Testing

Procedures for testing compressor windings, ground, and checking efficiency.

External Thermal Overload

Explanation of external thermal overload protection and its causes.

External Terminal Overload Test

How to test the external terminal overload for continuity.

Internal Terminal Overload

Description of internal overload protection and how to check it.

Sealed Refrigeration System Repairs

Lists required equipment and capabilities for refrigerant system repairs.

Hermetic Component Replacement

Procedures for replacing components within the sealed refrigeration circuit.

Compressor Motor Burnout Procedures

Steps for recovering refrigerant, removing components, flushing, and reassembling after burnout.

Rotary Compressor Troubleshooting

Specific troubleshooting tips for rotary compressors, focusing on mounts and terminals.

Refrigerant Charge Procedure

Critical steps and methods for accurately charging the refrigerant into the system.

Fan Motor Testing

Description of the fan motor and procedures for testing its operation at different speeds.

Capacitor Description

Description of the run capacitor and its role in motor operation.

Capacitor Testing

Troubleshooting Guide

Troubleshooting Overview and Voltage Limits

Classifies general troubles and lists room air conditioner voltage limits.

PCB Fault Codes

Identifies and explains possible PCB fault codes such as P1, P2, E1, and E2.

Water Level Protection Issues

Troubleshooting abnormal water level protection functions, like false alarms or no alarms.

Automatic Trouble Alarms

Details causes and indicators for automatic trouble alarms, such as sensor failures.

Temperature Sensor Troubleshooting

Flowchart for diagnosing issues related to the pipe temperature sensor.

Humidity Sensor Troubleshooting

Steps to diagnose humidity display failures and sensor issues.

Fail to Start Motor Diagnosis

Diagnostic flowchart for issues preventing the motor from starting.

Abnormal Noise Troubleshooting

Steps to diagnose and resolve abnormal noises originating from the unit.

Complaint and Remedy Guide

Lists common complaints, their causes, and recommended remedies.

Wiring Diagram

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