Heat Controller DXM2 manual Troubleshooting Chart, Start

Page 21

Heat Controller, Inc.

DXM2 UNIT CONTROLS

Application, Operation, & Maintenance Manual

Troubleshooting Chart

Use the following troubleshooting flow chart to find appropriate troubleshooting strategies on the following pages for the DXM2 control and most water source heat pump applications.

 

 

 

Start

 

 

 

 

 

 

 

Did Unit

 

 

 

Attempt to

 

 

 

Start?

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

Did Unit

 

 

 

Lockout at

 

 

 

Start-up?

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

See “Unit

 

Yes

Unit Short

short

 

 

 

Cycles?

cycles”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

DXM2 Functional Troubleshooting Flow Chart

No

Check Main

 

 

 

 

 

power (see power

 

 

 

 

 

problems)

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

Check fault code on communicating

 

 

 

 

 

 

thermostat (ATC32) or Configuration

 

 

 

and Diagnostics Tool (ACD01)

 

 

 

 

 

 

 

 

 

 

 

 

 

No fault

shown

Replace DXM2

See “Only Yes Fan Runs”

See “Only Yes

Comp

Runs”

See “Does No not Operate

in Clg”

Only Fan

Runs?

No

Only

Compressor

Runs?

No

Did unit lockout after a period of operation?

No

Does unit operate in cooling?

Yes

See fault codes in table on following page

Yes

Unit is OK!

‘See Performance Troubleshooting’ for further help

21

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Contents DXM2 Digital Heat Pump Controller Table of Contents DXM2 Overview DXM2 Electronic Heat Pump ControlsTest P12 DXM2 Physical Dimensions & LayoutP11 P10 DXM2 Layout and ConnectionsDXM2 Controls DIP SwitchesField Selectable Inputs DIP Package #1 S1DIP Package #2 S2 DIP Package #3 S3Safety Features Fault CodesLockout with Emergency Heat If the DXM2 is Unit Operation Description LED and Alarm Relay Output Table DXM2 Controls Special DXM2 Application Notes / Accessory Relays Thermostat Inputs With Resulting Demands System Inputs with the resulting demand Other OutputsDXM2 Sensors CommunicationsPressure Switches DXM2 Service & Application NotesThermostat Compatibility DXM2 Thermostat DetailsBasic Troubleshooting Information Advanced Troubleshooting and Configuration Information GeneralSystem Configuration Service Mode Start Troubleshooting Chart024 DXM2 Wiring Diagram Standard Installation 96B0005N56 Fault Htg Clg Possible Cause Solution Functional TroubleshootingESD ERV Fault DXM Only Symptom Htg Clg Possible Cause Solution Performance TroubleshootingDXM2 Unit Controls 2012

DXM2 specifications

The Heat Controller DXM2 is an advanced heating and cooling solution, meticulously designed for residential and commercial applications. This sophisticated unit integrates modern technologies to deliver superior climate control, ensuring comfort while maintaining energy efficiency. Among its standout features are its intuitive operation, flexibility in installation, and superior performance metrics.

One of the key attributes of the DXM2 is its advanced inverter technology, which allows for variable speed operation. This feature enables the system to adjust its output based on real-time cooling or heating demands, resulting in reduced energy consumption and lower utility bills. The inverter technology not only promotes efficiency but also enhances the system's operational longevity, as it reduces the wear and tear typically associated with traditional HVAC systems that operate at fixed speeds.

The unit boasts a user-friendly interface that allows for seamless control. With its advanced remote control and optional smartphone app connectivity, users can effortlessly adjust settings from anywhere, making it a perfect fit for today’s tech-savvy homeowners. This flexibility ensures that comfort can be customized according to personal preferences and schedules.

Additionally, the DXM2 is equipped with a multi-stage filtration system that actively removes dust, allergens, and other airborne particles, contributing to improved indoor air quality. This feature is particularly beneficial for individuals with allergies or respiratory issues, as it ensures cleaner air circulating throughout the living space.

The system’s whisper-quiet operation sets it apart from many competitors in the market. With noise levels comparable to a soft breeze, the DXM2 provides comfort without disruptive sounds, making it ideal for bedrooms, offices, and quiet spaces.

Moreover, the DXM2 offers enhanced durability and reliability due to its robust construction and high-quality components. The unit is designed to withstand harsh weather conditions and varying environments, ensuring consistent performance year-round.

Another noteworthy characteristic is its eco-friendly refrigerant, which aligns with contemporary environmental standards. This selection contributes to lower greenhouse gas emissions while maintaining efficiency and effectiveness in both heating and cooling modes.

In conclusion, the Heat Controller DXM2 is a prominent choice for anyone seeking a reliable and efficient climate control system. Its combination of advanced technology, customizable features, superior air quality management, and low noise levels positions it as a leader in the heating and cooling industry. Ultimately, the DXM2 is engineered to meet the demands of modern living, creating comfortable environments with unparalleled convenience and efficiency.