Heat Controller HEV/H manual DXM2 Controls, Unit Operation

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Installation, Operation & Maintenance

HEV/H SERIES

Heat Controller, Inc.

 

 

 

DXM2 CONTROLS

DXM2 Control

DXM2 is the next generation in controls is capable of 2-way communication between itself and smart components, like the communicating thermostat, fan motor and configuration/ diagnostic tool.

For most residential applications, configuration, monitoring and diagnostics can be done from the thermostat / service tool and there’s no need to read LEDs and change DIP switches.

For details on user settings, refer to User Manual (part #:

For details on Installer settings (not to be used by consumers), refer to Installer manual (part #:

DXM2 Control Start-up Operation

The control will not operate until all inputs and safety controls are checked for normal conditions. The compressor will have a 5 minute anti-short cycle delay at power-up. The first time after power-up that there is a call for compressor, the compressor will follow a 5 to 80 second random start delay. After the random start delay and anti-short cycle delay,

the compressor relay will be energized. On all subsequent compressor calls, the random start delay is omitted.

Test Mode button:

Test mode allows the service technician to check the operation of the control in a timely manner. By momentarily pressing the TEST pushbutton, the DXM2 control enters a 20 minute test mode period in which all time delays are sped up 15 times.

For details on installer/service settings on the configuration/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

diagnostic tool, refer to operation manual (part #:

 

Figure 25: Test Mode Button

 

 

 

For further details on the DXM2 control, refer to the DXM2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Application, Operation and Maintenance Manual and it is

 

 

 

 

 

 

 

 

(240Vac)

 

 

 

 

Gnd

B-

A+

24V

 

(240Vac)

 

 

shipped with the unit.

 

 

 

 

 

 

 

 

 

 

N.O.

N.C.

 

 

 

 

 

 

 

 

P5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermostat compatibility

 

 

 

 

 

 

 

 

 

Com

N.O.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

It is strongly recommended that GeoMax2 communicating

 

 

 

 

 

 

 

 

 

Fan Enable

Fan Speed

 

 

thermostat be used with DXM2 control, to ensure easy

Push test button to

 

 

 

 

 

 

 

configuration, monitoring and diagnostics, in PLAIN

enter Test Mode and

 

 

 

 

 

 

 

English, on the thermostat. For example, Airflow can NOT

 

 

 

 

 

P8

 

speed-up timing and

 

 

 

 

 

 

be configured without a communicating thermostat or

delays for 20 minutes.

 

 

Test

P12

12V

 

Configuration/ Diagnostic tool for use with GeoMax2.

 

 

 

 

 

 

 

 

 

 

 

 

 

IN

 

 

OUT

Field Configuration Options - Note: In the following field

Gnd

NC

configuration options, jumper wires should be clipped ONLY

 

when power is removed from the DXM2 control.

Table 7c: Unit Operation

Water coil low temperature limit setting: Jumper 3 (JW3- LT1 Low Temp) provides field selection of temperature limit setting for LT1 of 30°F or 10°F [-1°F or -12°C] (refrigerant temperature).

Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].

A0-2: Configure Modulating Valve (field installed accessory)

Set A0-2 jumper to “IOV” if using Modulating Motorized Valve as field installed accessory

DIP Switches – There’s no need to change the DIP switches on Residential units. All DIP switches in S1 and S2 should be “on”. In S3, S3-1 should be “on” and the rest should be “off”. For more details on DIP switches, refer to the DXM2 AOM.

CAUTION!

CAUTION! Do not restart units without inspection and remedy of faulting condition. Equipment damage may occur.

Conventional

Unit

T-stat signal

 

ECM fan

(Non-Communicating)

 

G

Fan only

G, Y1

Stage 1 heating1

G, Y1, Y2

Stage 2 heating1

G, Y1, Y2, W

Stage 3 heating1

G, W

Emergency heat

G, Y1, O

Stage 1 cooling2

G, Y1, Y2, O

Stage 2 cooling2

1Stage 1 = 1st stage compressor, 1st stage fan operation Stage 2 = 2nd stage compressor, 2nd stage fan operation Stage 3 = 2nd stage compressor, auxiliary electric heat, 3rd stage fan operation

2Stage 1 = 1st stage compressor, 1st stage fan operation, reversing valve

Stage 2 = 2nd stage compressor, 2nd stage fan operation, reversing valve

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Contents Residential Packaged Geothermal Heat Pump Table of Contents Configuration Supply AIR Options Unit NomenclatureSafety General Information Physical Data Vertical UpflowHE Vertical Upflow Dimensional Data Return Connection Standard Deluxe Filter Frame Vertical Installation Vertical Unit LocationSound Attenuation for Vertical Units Condensate Piping for Vertical UnitsVertical Installation Horizontal Unit LocationMounting Horizontal Units Horizontal Installation Typical Closed Loop Horizontal Unit InstallationField Conversion of AIR Discharge Field Conversion of Air DischargeSide to Back Discharge Conversion Water Connection Installation GROUND-LOOP Heat Pump ApplicationsLow Water Temperature Cutout Setting DXM2 Control AntifreezeGROUND-WATER Heat Pump Applications Open Loop Ground Water SystemsWater Quality Standards Water Control Valve Water Coil Low Temperature Limit SettingExpansion Tank and Pump Flow RegulationWater Quality Standards Water Quality StandardsTypical HWG Installation HOT Water GeneratorInstallation Water Tank Refill Water Tank PreparationHWG Water Piping Initial Start-UpGeneral Line Voltage Wiring Electrical Line VoltageElectrical Line Voltage HWG Wiring Electrical Power WiringPower Connection Volt OperationElectrical LOW Voltage Wiring Low Water Temperature Cutout SelectionThermostat Connections Accessory Connections Taco ValveThermostat Electrical Thermostat Wiring Thermostat InstallationECM Blower Control Blower Performance Data ECM Blower Performance Data TableWiring Diagram DXM2 Controls Unit OperationDXM2 Layout and Connections P11Unit 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 ProcedureUnit Operating Conditions HE Coax Water Pressure DropHE Series Typical Unit Operating Pressures and Temperatures Unit Operating Conditions Preventive Maintenance Troubleshooting DXM2 Process Flow Chart StartFunctional Troubleshooting Fault Htg Clg Possible Cause SolutionIFC Fault Code Troubleshooting Form 410AHEV/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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