Table of Contents

Basic Operation

 

 

 

3

Installation

 

 

 

 

Supplemental Installation, Operation and

 

 

 

Maintenance Manuals

 

 

 

3

Installation Concerns

.

.

3

Lifting with a Crane / Forklift

.

.

4

Roof Curb and Rail Mounting

 

 

 

 

Recommended Roof Opening

 

 

 

4

Roof Curb Mounting

 

 

 

5

Curb Dimensions and Weights

.

.

5

Ductwork Connections

 

 

 

5

Rail Mounting / Layout

 

 

 

6

Service Clearances

.

.

6

Access Panel Description and Location .

.

.

6

Dimensional Data

 

 

 

7

Electrical Information

 

 

 

 

General Electrical Information

 

 

 

8

Control Center Components

.

.

9

Electric Heater Application/Operation . .

.

.

9

Unit Accessories

.

.

10

Exhaust Air Damper Installation . . . .

.

.

10

Optional Accessories

 

 

 

 

Frost Control Application/Operation . . .

.

. 11

Economizer Application/Operation

 

 

 

12

Variable Frequency Drives and Wiring . .

. 13-14

Typical Wiring Diagram

.

. 15

Sensors and Lights

.

. 16

Remote Control Panel and Wiring . . . .

.

. 17

Sensors Mounted by Factory

.

. 18

Sequence of Operation

 

 

 

 

Start-Up

 

 

 

 

Unit

.

.

19

Optional Accessories

.

. 20

Fan

 

 

21-22

Energy Recovery Wheel

.

. 22

Routine Maintenance Checklist

 

 

 

 

General

 

 

 

23

Fan Belts

.

. 23

Fan Motors

.

. 23

Fan Wheel and Fasteners

 

 

 

24

Fan Bearings

 

 

 

24

Filters

 

 

 

24

Door Seal Maintenance

.

. 24

Energy Recovery Wheel Maintenance

 

 

 

 

Accessing Energy Recovery Wheel

 

 

 

25

Removing Energy Recovery Wheel Segments 25

Cleaning Wheel or Segments

.

. 25

Wheel Belt

 

 

 

25

Wheel Bearing

.

. 25

Parts List

 

 

 

26

Sequence of Operation

.

.

26

Troubleshooting – Airflow

.

.

27

Troubleshooting – Unit

 

28-29

Maintenance Log

30-31

Warranty

Backcover

Basic Operation

The ERVe brings in fresh, outdoor air and removes stale, exhaust air. Prior to discharging the exhaust air, the energy recovery wheel transfers energy from the exhaust air to the outdoor air at an effectiveness of 70-80%. Simply put, this unit preconditions the outdoor air to save money on heating and cooling costs.

 

 

 

 

Enthalpy Wheel

 

 

 

 

Supply Air to Building

 

 

Filters

 

Outdoor Air Weatherhood

 

 

 

 

 

 

 

 

 

Supply

 

 

 

 

 

 

 

 

 

 

Outdoor Air

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blower

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exhaust Blower

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Return Air from Building

Filters

 

 

 

 

 

 

 

 

 

 

 

 

 

Exhaust Weatherhood

 

 

 

 

 

 

 

 

 

Exhaust Air

Supplemental Installation,

Operation and Maintenance

Manuals

Refer to the following Installation, Operation and Maintenance Manuals for additional details:

Part #462844 — Exhaust Weatherhood

Installation

The system design and installation should follow accepted industry practice, such as described in the ASHRAE Handbook.

Adequate space should be left around the unit for filter replacement and maintenance. Sufficient space should be provided on the side of the unit for routine service and component removal should that become necessary.

See Service Clearances and Access Panel Description sections for more details.

Warning

All factory provided lifting lugs must be used when lifting the unit. Failure to comply with this safety precaution could result in property damage, serious injury or death.

Model ERVe Energy Recovery Unit 3

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Greenheck Fan ERVe manual Table of Contents, Basic Operation, Supplemental Installation Operation and Maintenance Manuals

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.