Heat Controller HEV/H manual ECM Blower Control

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Heat Controller, Inc.

HEV/H SERIES

Installation, Operation & Maintenance

 

 

 

ECM BLOWER CONTROL

The ECM fan is controlled directly by the DXM2 control board that converts thermostat inputs and CFM settings to signals used by the ECM motor controller. To take full advantage

of the ECM motor features, a communicating multi-stage thermostat should be used (ATC32U**).

The DXM2 control maintains a selectable operating airflow [CFM] for each heat pump operating mode. For each operating mode there are maximum and minimum airflow limits. See the ECM Blower Performance tables for the maximum, minimum, and default operating airflows.

Airflow levels are selected using the configuration menus of a communicating thermostat (ATC32U**) or diagnostic tool (ACDU**). The configuration menus allow the installer to independently select and adjust the operating airflow for each of the operating modes. Air flow can be selected in 25 CFM increments within the minimum and maximum limits shown in the ECM Blower Performance Table. The blower operating modes include:

•First Stage Cooling (Y1 & O)

•Second Stage Cooling (Y1, Y2, & O)

•First Stage Cooling in Dehumidification Mode (Y1, O, & Dehumid)

•Second Stage Cooling in Dehumidification Mode (Y1, Y2, O, & Dehumid)

•First Stage Heating (Y1)

•Second Stage Heating (Y1 & Y2)

•Third Stage (Auxiliary) Heating (Y1, Y2, & W)

•Emergency Heating (W with no Y1 or Y2)

•Fan (G with no Y1, Y2, or W)

It is highly recommended that ATC32U** or ACDU** be used to set dehumidification mode electronically. For dehumidification settings on other units using the non-communicating stat, refer to DXM2 AOM (part #97B0003N15).

The ECM motor includes “soft start” and “ramp down” features. The soft start feature is a gentle increase of motor rpm at blower start up. This creates a much quieter blower start cycle.

The ramp down feature allows the blower to slowly decrease rpm to a full stop at the end of each blower cycle. This creates a much quieter end to each blower cycle and adds overall unit efficiency.

The ramp down feature is eliminated during an ESD (Emergency Shut Down) situation. When the DXM2 ESD input is activated, the blower and all other control outputs are immediately de-activated.

The ramp down feature (also known as the heating or cooling “Off Delay”) is field selectable by the installer. The allowable range is 0 to 255 seconds.

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Contents Residential Packaged Geothermal Heat Pump Table of Contents Unit Nomenclature Configuration Supply AIR OptionsSafety General Information Vertical Upflow Physical DataHE Vertical Upflow Dimensional Data Return Connection Standard Deluxe Filter Frame Vertical Unit Location Vertical InstallationCondensate Piping for Vertical Units Sound Attenuation for Vertical UnitsVertical Installation Horizontal Unit LocationMounting Horizontal Units Typical Closed Loop Horizontal Unit Installation Horizontal InstallationField Conversion of AIR Discharge Field Conversion of Air DischargeSide to Back Discharge Conversion GROUND-LOOP Heat Pump Applications Water Connection InstallationAntifreeze Low Water Temperature Cutout Setting DXM2 ControlGROUND-WATER Heat Pump Applications Open Loop Ground Water SystemsWater Quality Standards Flow Regulation Water Coil Low Temperature Limit SettingExpansion Tank and Pump Water Control ValveWater Quality Standards Water Quality StandardsHOT Water Generator Typical HWG InstallationInstallation Initial Start-Up Water Tank PreparationHWG Water Piping Water Tank RefillGeneral Line Voltage Wiring Electrical Line VoltageElectrical Line Voltage Volt Operation Electrical Power WiringPower Connection HWG WiringElectrical LOW Voltage Wiring Low Water Temperature Cutout SelectionThermostat Connections Accessory Connections Taco ValveThermostat Thermostat Installation Electrical Thermostat WiringECM Blower Control ECM Blower Performance Data Table Blower Performance DataWiring Diagram Unit Operation DXM2 ControlsP11 DXM2 Layout and ConnectionsUnit Commissioning and Operating Conditions Operating LimitsCommissioning Conditions Unit Starting and Operating Conditions Unit Start-up Procedure Unit START-UP and Operating ConditionsUnit and System Checkout Unit START-UP Procedure Unit START-UP ProcedureHE Coax Water Pressure Drop Unit Operating ConditionsHE Series Typical Unit Operating Pressures and Temperatures Unit Operating Conditions Preventive Maintenance Troubleshooting Start DXM2 Process Flow ChartFault Htg Clg Possible Cause Solution Functional TroubleshootingIFC Fault Code 410A Troubleshooting FormHEV/H Series 97B0016N11

HEV/H specifications

The Heat Controller HEV/H series represents a significant advancement in heating technology, designed to provide efficient and effective climate control for both residential and commercial spaces. This innovative range of heat pumps combines cutting-edge features with user-friendly functionality to offer a reliable solution for modern heating needs.

One of the standout features of the HEV/H series is its advanced inverter technology. This system allows the heat pump to adjust its output based on the specific heating requirements of the environment. By varying the compressor's speed, the HEV/H maintains a consistent temperature while significantly reducing energy consumption. This not only lowers utility bills but also reduces environmental impact, making it a more sustainable option compared to traditional heating methods.

The HEV/H series is equipped with a high-efficiency heat exchanger, which maximizes heat transfer and enhances overall performance. This component ensures that the system can operate effectively even in colder climates, providing reliable heating throughout the winter months. Additionally, the unit’s low noise operation is designed to maintain a peaceful environment, making it suitable for bedrooms, offices, and other noise-sensitive areas.

Another notable characteristic of the HEV/H series is its smart control features. Integrated with Wi-Fi connectivity, users can conveniently manage their heating settings remotely via a smartphone app. This feature allows for customized scheduling and temperature control, ensuring optimal comfort and convenience. Users can also receive real-time notifications on energy consumption and system performance, enhancing user engagement and control.

The HEV/H series also emphasizes durability and longevity. Constructed with high-quality materials, the units are designed to withstand the rigors of daily use while requiring minimal maintenance. The incorporation of advanced filtration systems helps to improve indoor air quality by capturing dust and allergens, which is especially beneficial for individuals with allergies or respiratory issues.

In summary, the Heat Controller HEV/H series exemplifies modern heating technology with its combination of efficiency, control, and user-friendly features. Its inverter technology, high-efficiency heat exchangers, smart connectivity, and durable construction make it an outstanding choice for anyone seeking to enhance their indoor climate while being conscious of energy usage and environmental impact. Whether for a home or business, the HEV/H series is poised to deliver exceptional heating solutions tailored to diverse needs.
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