Greenheck Fan ERVe Roof Curb and Rail Mounting, Lifting with a Crane, Lifting with a Forklift

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Lifting with a Crane

1.Before lifting, be sure that all shipping material has been removed from unit.

2.To assist in determining rigging requirements, weights are shown below.

3.Unit must be lifted by all corner lifting points provided on base structure.

4.Rigger to use suitable mating hardware to attach to unit corner lifting points.

5.Spreader bar(s) must span the unit to prevent damage to the cabinet by the lift cables.

6.Always test-lift the unit to check for proper balance and rigging before hoisting to desired location.

7.Never lift units by weatherhoods.

8.Never lift units in windy conditions.

9.Preparation of curb and roof openings should be completed prior to lifting unit to the roof.

10.Check to be sure that gasketing (supplied by others) has been applied to the curb prior to lifting the unit and setting on curb.

Unit Weights (lbs.)

Unit Size

Approx. Weight

 

 

ERVe-20

825

 

 

ERVe-35

1100

 

 

ERVe-45

1275

 

 

ERVe-55

1550

 

 

The weights shown are a worst case scenario based on the sheet metal and component weights for the unit. These weights include sheet metal weights added together with the largest motors, blowers and accessories for the units.

Lifting with a Forklift

Unit base rail includes fork-able lifting locations. Use weights shown to determine forklift size requirements.

Roof Curb and Rail Mounting

Recommended Roof Opening

 

A

1.63

 

 

1.63

 

EXHAUST

 

 

INLET

 

 

 

B

 

SUPPLY

 

 

OUTLET

 

Unit Size

A

B

ERVe-20 22 37

ERVe-35 25 44.5

ERVe-45 27 51.5

ERVe-55 27 60

All dimensions are in inches.

Position the unit roof opening such that the supply discharge and exhaust inlet of the unit will line up with the corresponding ductwork. Be sure to allow for the recommended service clearances when positioning opening (see Service Clearances).

Do not face the outdoor air intake of the unit into prevailing wind and keep the intake away from any other exhaust fans. Likewise, position the exhaust discharge opening away from outdoor air intakes of any other equipment.

When cutting only duct openings, cut opening 1-inch (25mm) larger than duct size to allow clearance for installation. Area enclosed by roof curb must comply with clearance to combustible materials. If the roof is constructed of combustible materials, area within the roof curb must be ventilated, left open, or covered with non-combustible material which has an “R” value of at least 5. If area within curb is open, higher radiated sound levels may result.

Where the supply or warm air duct passes thru a combustible roof, a clearance of one inch must be maintained between the outside edges of the duct and combustible material in accordance with NFPA Standard 90A.

4Model ERVe Energy Recovery Unit

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Contents Installation, Operation and Maintenance Manual Model ERVe General Safety InformationInspection and Maintenance during Storage ReceivingUnpacking HandlingTable of Contents Supplemental Installation Operation and Maintenance ManualsInstallation Basic OperationRoof Curb and Rail Mounting Lifting with a CraneLifting with a Forklift Recommended Roof OpeningRoof Curb Mounting Curb Outside Dimensions and WeightsDuctwork Connections Access Panel Description and Location Service ClearancesRail Mounting / Layout Dimensional Data Duct Dimensions Unit SizeElectrical Information Typical Control Center Components Electric Heater Application/OperationUnit Accessories Outdoor Air WeatherhoodExhaust Weatherhood DampersOptional Accessories Frost Control Application/OperationTesting Temperature Sensor with Override Economizer Application/OperationModulating the Wheel Enthalpy Sensor with OverrideFactory Set Points Variable Frequency Drives for Energy Recovery BlowersDrive Operation Economizer Signal Source Variable Frequency Drives for Energy Recovery Wheel10 VDC Typical Wiring Diagram TransformerService Outlet Rotation SensorDirty Filter Sensor CO2 SensorRemote Control Panel and Wiring Schematics Indicator Lights powered by the ER UnitDay Timer or On/Off Switch Dirty Filter Indicator power by othersTemperature Sensors 1K Ohm RTD Sensors Mounted by FactoryPressure Sensors analog or digital Amp Current Sensors analog or digitalPre Start-Up Checklist check as items are Start-Up ChecklistStart-Up General Start-Up InformationOptional Accessories Checklist Optional Accessories sectionEconomizer Application / Operation section Variable Frequency Drives sectionUnit Start-Up Energy Recovery Wheel VibrationDrive Belt Air SealsRoutine Maintenance Maintenance Procedures LubricationFan Belts Fan MotorsExternal Filter Maintenance Internal Filter MaintenanceDoor Seal Maintenance Fan Wheel & FastenersEnergy Recovery Wheel Maintenance Parts List Sequence of OperationTroubleshooting Airflow Troubleshooting Unit Symptom Possible Cause Corrective ActionTroubleshooting Unit Maintenance Log Model ERVe Energy Recovery Unit Warranty

ERVe specifications

The Greenheck Fan ERVe series stands at the forefront of energy-efficient ventilation solutions, specifically designed to meet the growing demands for energy conservation and enhanced indoor air quality in commercial buildings. As part of Greenheck's commitment to innovation, the ERVe series offers a variety of models tailored to diverse applications, including schools, hospitals, and office buildings.

One of the key features of the ERVe series is its advanced energy recovery technology. The ERVe utilizes a heat recovery wheel that efficiently transfers heat and moisture between the exhaust and incoming airstreams. This process significantly reduces heating and cooling loads on HVAC systems, promoting energy savings and improving overall system efficiency. By reclaiming energy that would otherwise be wasted, the ERVe ensures that buildings not only conform to energy codes but also contribute to sustainability goals.

The ERVe series is designed with versatility in mind. It offers multiple configurations, including vertical and horizontal orientations, which makes it adaptable to various installation environments. Additionally, the unit can be equipped with a range of options such as pre-filters, post-filters, and variable speed drive motors, allowing for customization based on specific application needs. This adaptability ensures that the ERVe can meet the specific air quality requirements of different spaces while maintaining optimal airflow.

Another significant characteristic of the ERVe series is its low noise operation. The design incorporates advanced acoustical features, including sound attenuators and insulated panels, which minimize sound transmission and enhance occupant comfort. As noise control becomes increasingly important in settings like educational institutions and healthcare facilities, the ERVe series excels in providing a peaceful indoor environment.

Moreover, the ERVe series is engineered with durability in mind. Constructed from high-quality materials, the units are built to withstand the rigors of continuous operation. The robust design not only extends the service life of the equipment but also reduces maintenance requirements, leading to lower overall operational costs.

In terms of control and monitoring, the ERVe series is compatible with various building management systems, allowing for integration into sophisticated HVAC controls. This feature enables real-time data tracking and optimization, enhancing the efficiency of indoor climate management.

Overall, the Greenheck Fan ERVe series represents a significant advancement in ventilation technology, combining energy efficiency, customizable features, low noise operation, and durability. These characteristics ensure that the ERVe is a reliable choice for modern commercial buildings striving for improved air quality and reduced energy consumption.