Greenheck Fan HRE-20, 90, 55, 45 manual CO2 Sensor, Service Outlet, Vapor Tight Lights

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optional accessories

CO2 Sensor

This accessory is often used to provide a modulating control signal to a variable frequency drive to raise and lower airflow in relationship to the CO2 levels in the space.. This strategy is often referred to as Demand Control Ventilation and provides further energy savings to the system.. Follow instructions supplied with sensor for installation and wiring details..

Service Outlet

120 VAC GFCI service outlet ships loose for field installation.. Requires separate power source so power is available when unit main disconnect is turned off for servicing..

Vapor Tight Lights

Vapor tight lights provide light to each of the compartments in the energy recovery unit.. The lights are wired to a switch mounted on the outside of the unit.. The switch requires

a separate power source to allow for power to the lights when the unit main disconnect is off for servicing..

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Contents Read and Save These INSTRUCTIONS461248 Indirect Evaporative CoolerDirect Evaporative Cooler TABLE OF Contents StorageBasic Operation Installation Safety WarningLifting Roof Curb Mounting Rail Mounting Ductwork ConnectionsSupply Weatherhood Exhaust WeatherhoodElectrical Information TYPICAL CONTROL CENTER COMPONENTS Exploded Detail Terminal StripService Clearances / access panel locations HRE-20 HRE-45HRE-55 HRE-90 Dimensional Data / Access Door Descriptions Model Exterior Dimensions HRE-20Overall Exterior Dimensions Model Dimensional dataEvap Module Installation Standard Trap and Supply Line ConfigurationEvaporative Cooling Modules Evap Module START-UPWater Flow Adjustment DevicePump and Float Components HRE Water SUPPLY CONNECTION LocationTop View EvaporativeEvaporative FreezeTimer Protection Trap & Supply Line Configuration with Auto Drain and FillWater Control Options for Evaporative Cooling Auto Drain and Fill with Freeze ProtectionDrain Trap Drain and Overflow Connection Locations Troubleshooting for evaporative module Symptom SolutionEvaporative Cooling Maintenance Optional accessories Electric Heater Application/OperationElectric Preheater Post-Heater Control PanelFrost Threshold Temperatures TimerTesting Frost Control Application/OperationEconomizer Application/Operation Modulating the Wheel Enthalpy Sensor With OverrideVariable Frequency Drives for Blowers Yaskawa Yaskawa E7Variable Frequency Drives for Energy Recovery Wheel Factory Setpoints Modulating Control 0-10 VDC for FAN SpeedWiring Diagram TransformerRotation Sensor Dirty Filter SensorService Outlet CO2 SensorVapor Tight Lights Optional Accessories Remote Control Panel and Wiring SchematicsRemote Panel Wiring Schematics Indicator Lights powered by the ER UnitHeating/Cooling Switches and Night Setback Switch/Timer Temperature Sensors 1K Ohm RTD Sensors Mounted by FactoryStart-Up Checklist for unit Safety DangerSafety Caution Start-Up Checklist Start-Up Checklist for Evaporative CoolerSpecial Tools Required Optional Accessories Checklist Optional Accessories sectionEconomizer Application / Operation section Variable Frequency Drives sectionUnit start-up Fans Forward Curved TypeFan Performance Modifications Fan Belt DrivesDirection of Fan Wheel Rotation Fan RPMVibration Rotation DirectionDrive Belt Air SealsInside layout of HRE unit Routine maintenance DateLubrication DampersFan Belts Fan MotorsExternal Filter Maintenance Internal Filter MaintenanceDoor Seal Maintenance BearingsEnergy Recovery Wheel Maintenance Access to wheel through Outdoor air filter doorWheel segment removed Wheel Belt & Pulley Wheel BearingParts List Model HRESequence of Operation Basic UnitSummer Operation Winter OperationPressure Drop Across Energy Recovery Wheel Test and Balance ReportDesign Airflow Measured AirflowTroubleshooting Symptom Possible Cause Corrective ActionWarranty

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Manual 24 pages 59.92 Kb

45, 55, 90, HRE-20 specifications

The Greenheck Fan HRE series, specifically the models HRE-20, HRE-90, HRE-55, and HRE-45, represents a blend of innovation and efficiency in the HVAC industry. Built for both commercial and industrial applications, these exhaust fans stand out due to their robust design and advanced operational features.

One of the main features of the HRE series is its energy-efficient motor design. These fans come equipped with a premium efficiency motor that reduces energy consumption while maintaining high performance. The motors are specifically designed to provide exceptional airflow while operating at lower sound levels, ensuring a quieter environment.

The HRE models also showcase advanced aerodynamic design, featuring optimized blade geometry that enhances airflow performance. This design ensures that the fans can deliver consistent and effective air movement even at varying operational conditions. This makes the HRE series suitable for use in a wide range of applications, from commercial kitchens to industrial processes.

Another significant characteristic of the HRE series is its durability. Constructed from high-quality materials, these fans are built to withstand harsh environmental conditions and prolonged usage. The robust casing and corrosion-resistant finishes ensure longevity, reducing the need for frequent repairs or replacements.

In terms of installation and maintenance, the HRE series offers significant advantages. The fans are designed for easy installation with clear mounting instructions. Additionally, maintenance procedures are simplified, allowing for hassle-free access to critical components, which reduces downtime and operating costs.

Technologically, the HRE models incorporate advanced controls and monitoring systems. These systems can offer real-time feedback on operational performance, allowing for proactive maintenance and energy management. Integrated controls can be customized to work with building management systems, providing users with seamless integration and control capabilities.

Overall, the Greenheck Fan HRE-20, HRE-90, HRE-55, and HRE-45 exemplify a commitment to quality and efficiency in commercial and industrial ventilation solutions. Their combination of energy efficiency, advanced design, durability, and user-friendly features make them a leading choice for those seeking reliable airflow solutions. These fans not only meet current industry standards but also set a benchmark for performance and innovation in the HVAC sector.