Heat Controller HEV/H manual Preventive Maintenance

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Heat Controller, Inc.

HEV/H SERIES

Installation, Operation & Maintenance

 

 

 

PREVENTIVE MAINTENANCE

Water Coil Maintenance

(Direct ground water applications only)

If the system is installed in an area with a known high mineral content (125 P.P.M. or greater) in the water, it is best to establish a periodic maintenance schedule with the owner so the coil can be checked regularly. Consult the well water applications section of this manual for

a more detailed water coil material selection. Should periodic coil cleaning be necessary, use standard coil cleaning procedures, which are compatible with the heat exchanger material and copper water lines. Generally, the more water flowing through the unit, the less chance for scaling. Therefore, 1.5 gpm per ton [2.0 l/m per kW] is recommended as a minimum flow. Minimum flow rate for entering water temperatures below 50°F [10°C] is 2.0 gpm per ton [2.6 l/m per kW].

Water Coil Maintenance

(All other water loop applications)

Generally water coil maintenance is not needed for closed loop systems. However, if the piping is known to have high dirt or debris content, it is best to establish a periodic maintenance schedule with the owner so the water coil can be checked regularly. Dirty installations are typically the result of deterioration of iron or galvanized piping or components in the system. Open cooling towers requiring heavy chemical treatment and mineral buildup through water use can also contribute to higher maintenance. Should periodic coil cleaning be necessary, use standard coil cleaning procedures, which are compatible with both the heat exchanger material and copper water lines. Generally, the more water flowing through the unit, the less chance for scaling. However, flow rates over 3 gpm per ton (3.9 l/m per kW) can produce water (or debris) velocities that can erode the heat exchanger wall and ultimately produce leaks.

Hot Water Generator Coils

See water coil maintenance for ground water units. If the potable water is hard or not chemically softened, the high temperatures of the desuperheater will tend to scale even quicker than the water coil and may need more frequent inspections. In areas with extremely hard water, a HWG is not recommended.

Filters

Filters must be clean to obtain maximum performance. Filters should be inspected every month under normal operating conditions and be replaced when necessary. Units should never be operated without a filter.

Washable, high efficiency, electrostatic filters, when dirty, can exhibit a very high pressure drop for the fan motor and reduce air flow, resulting in poor performance. It is especially important to provide consistent washing of these filters (in the opposite direction of the normal air flow) once per month using a high pressure wash similar to those found at self-serve car washes.

Condensate Drain

In areas where airborne bacteria may produce a “slimy” substance in the drain pan, it may be necessary to treat the drain pan chemically with an algaecide approximately every three months to minimize the problem. The condensate pan may also need to be cleaned periodically to insure indoor air quality. The condensate drain can pick up lint and dirt, especially with dirty filters. Inspect the drain twice a year to avoid the possibility of plugging and eventual overflow.

Compressor

Conduct annual amperage checks to insure that amp draw is no more than 10% greater than indicated on the serial plate data.

Fan Motors

All units have lubricated fan motors. Fan motors should never be lubricated unless obvious, dry operation

is suspected. Periodic maintenance oiling is not recommended, as it will result in dirt accumulating in the excess oil and cause eventual motor failure. Conduct annual dry operation check and amperage check to insure amp draw is no more than 10% greater than indicated on serial plate data.

Air Coil

The air coil must be cleaned to obtain maximum performance. Check once a year under normal operating conditions and, if dirty, brush or vacuum clean. Care must be taken not to damage the aluminum fins while cleaning. CAUTION: Fin edges are sharp.

Cabinet

Do not allow water to stay in contact with the cabinet for long periods of time to prevent corrosion of the cabinet sheet metal. Generally, vertical cabinets are set up from the floor a few inches [7 - 8 cm] to prevent water from entering the cabinet. The cabinet can be cleaned using a mild detergent.

Refrigerant System

To maintain sealed circuit integrity, do not install service gauges unless unit operation appears abnormal. Reference the operating charts for pressures and temperatures. Verify that air and water flow rates are at proper levels before servicing the refrigerant circuit.

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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.