Greenheck Fan 473501 Troubleshooting Controller Alarms, DDC Controller, FX05 Furnace Controller

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Troubleshooting - Controller Alarms

The first step in troubleshooting the unit is to check the on-board alarm indicators. Several of the electronic controls in the unit monitor the system for faults and will go into alarm, shutting down the unit or a single function within the unit.

DDC Controller

Check the screen on the DDC for an alarm condition. If the DDC is

in an alarm condition, a message will show on the DDC screen.

The DDC is located in the main control center. If the DDC is in alarm condition, the alarm button will blink red. Press the alarm button to see the specific condition or to reset the DDC. Refer to the DDC Installation Operations and Maintenance manual for detailed information on fault codes and see the unit-specific wiring diagram.

Phase Monitor

The phase monitor has two LED indicator lights, one red and one green. Green indicates proper operational status, red indicates the unit has detected a fault and is in alarm condition.

Variable Frequency Drive (VFD)

Variable frequency drives have a display screen that will show an alarm condition. If a fault such as a voltage spike occurs, the VFD will go into alarm and will not reset until a hard restart is performed. See the unit-specific manufacturer’s manual supplied with the unit. VFDs are located in the main control center.

FX05 Furnace Controller

Present only if an indirect gas-fired furnace option is present.

The FX05 furnace controller will display an alarm condition if present. The controller will be found in the furnace control cneter. See the

furnace installation, operation and maintenance manual and the controller manufacturer’s unit-specific manul for further information.

28Model ERCH-HP Energy Recovery Unit

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Contents General Safety Information Model ERCH-HPInspection and Maintenance during Storage ReceivingUnpacking HandlingTable of Contents Product Overview Models and CapacitiesSubassemblies CoilsHeat Pump Module Location of components in the module will varyDimensional Data InstallationUnit Weights and Recommended Roof Opening Service Clearances ERCH-HP 20 ERCH-HPLifting Lifting LugsInstall Ductwork Roof Curb Mounting Curb Outside Dimensions and WeightsSet the Unit Lift Rail Mounting / Layout Ductwork ConnectionsExhaust Weatherhood Start-Up Unit Start-Up Procedure Pre-Start-Up ChecklistVoltage Imbalance Unit Start-Up Checklist Electrical Information Plumbing / Piping Overview Discharge Air Temperature SensorCondensate Drain Trap Optional Remote Control Panel Wiring SchematicsIndicator Lights powered by the ER Unit Day Timer or On/Off SwitchOptional Control Center Components Electrical Controls TimerOptional Frost Control Optional Economizer Phase MonitorVariable Frequency Drive VFD Optional Rotation Sensor Dirty Filter SensorAdjust the Air Seals Energy WheelSequence of Operation Start-UpEnergy Wheel Maintenance Factory-Installed Heat Pump System Components Energy Wheel TroubleshootingHeat Pump Overview Heat Pump Controls Refrigeration System Schematic Typical Operating Conditions Lockout Reset Unit Protection Module UPM Fault IndicationsIntelligent Reset DDC Controller Troubleshooting Controller AlarmsFX05 Furnace Controller Troubleshooting Airflow Troubleshooting UnitDesign Airflow Measured AirflowResistance Troubleshooting Refrigeration Circuit Troubleshooting NoteTwo hours. Recheck for open circuit Check bulb for contact Check entering air wet bulb conditions Worn oil pump Replace the oil pump Routine Maintenance Maintenance FrequencyMaintenance Procedures Lubrication DampersFan Wheel and Fasteners Fan MotorsFan Bearings External Filter Maintenance Internal Filter MaintenanceCoil Maintenance Maintenance Log Warranty

473501 specifications

Greenheck Fan 473501 is a significant player in the world of ventilation solutions, specifically designed to meet the increasing demands for efficiency and effectiveness in air movement. This commercial-grade fan is particularly noted for its high performance and reliability, making it a top choice for various applications, ranging from industrial settings to larger commercial spaces.

One of the main features of the Greenheck 473501 is its energy-efficient design. It is engineered to minimize energy consumption while maximizing airflow, allowing users to achieve optimal performance without incurring high utility bills. The fan is equipped with a powerful motor that not only ensures consistent airflow but also contributes to its overall longevity and durability.

The fan boasts an impressive air performance rating, which is crucial for environments that require precise temperature and humidity control. With adjustable airflow settings, users can customize the fan’s operation to suit specific needs, whether that means circulating air in a warehouse or exhaust in a manufacturing facility.

Another standout characteristic is the fan's robust construction. Built with corrosion-resistant materials, the Greenheck 473501 is ideal for use in harsh environments, where exposure to moisture and other elements could compromise lesser fans. The design also incorporates noise-reducing technologies, making it suitable for settings where quiet operation is essential, such as schools, hospitals, and office buildings.

In terms of installation, the Greenheck 473501 is designed for versatility. It can be easily integrated into various ventilation systems, whether for new constructions or upgrades to existing infrastructure. Its compact footprint allows for convenient placement without sacrificing performance.

Furthermore, Greenheck offers extensive support and resources for this model, ensuring users have access to the information necessary for optimal operation, maintenance, and any potential troubleshooting.

Overall, the Greenheck Fan 473501 represents a harmonious blend of efficiency, durability, and flexibility, making it an ideal choice for those seeking a high-quality ventilation solution that meets contemporary environmental standards while delivering reliable performance across diverse applications.
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