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Greenheck ERV Manual

Greenheck ERV Manual

Energy recovery ventilator
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Energy Recovery Ventilator
Model ERV
• Commercial
• Institutional
• 400 to 12,000 cfm
• 1.5 in. wg external
static pressure
June
2010

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Summary of Contents for Greenheck ERV

  • Page 1 Energy Recovery Ventilator Model ERV • Commercial • Institutional • 400 to 12,000 cfm • 1.5 in. wg external static pressure June 2010...

  • Page 2: Design Features

    Model ERV Greenheck’s model ERV provides fresh outdoor air to your building and is designed for operation in all climates. This unit incorporates innovative design features with options in energy wheel performance to provide a quality constructed unit with performance flexibility. The flexibility and reliability of these units means the ERV will fit seamlessly into your building to improve your indoor air quality while saving energy and costs.
  • Page 3 Model ERV How does an energy recovery wheel work? The basic objectives for providing acceptable indoor air quality (IAQ) are to 0.20 0.20 0.25 0.25 0.30 0.30 0.35 0.35 0.40 SENSIBLE HEAT RATIO = Qs / Qt SENSIBLE HEAT RATIO = Qs / Qt control indoor contaminates levels while maintaining desired indoor air temperature and humidity.
  • Page 4 What is the Benefit with Greenheck Energy Recovery? For the Building Owner • Improved Indoor Air Quality (IAQ) Introducing fresh, outdoor air to a building is a key component to sustaining excellent indoor air quality. Outdoor air can be very expensive to heat and cool, but the ERV unit can provide an economical approach to delivering outdoor air into a building.
  • Page 5 What is the Benefit with Greenheck Energy Recovery? For the Design Engineer • Adhering to ASHRAE Guidelines ASHRAE Standard 90.1 provides design guidelines regarding when it is most beneficial to use energy recovery. Depending upon your geographic location and the percentage of outdoor air in the application, ASHRAE recommends when to use energy recovery.
  • Page 6 Accessories Low-Leakage Dampers — Internally mounted for Roof Curbs both supply and exhaust For a cohesive fit between Where code requires low-leakage the ERV and your building, dampers they can be provided to keep Greenheck offers a pre- the cold weather out in the winter, engineered curb design.
  • Page 7 Accessories Dirty Filter Sensors Sensor Filters require scheduled maintenance to improve A good indicator for building health is air quality and system efficiency. A dirty filter sensor carbon dioxide (CO ). Greenheck offers a allows you to minimize maintenance frequency to only sensor, that can be used to engage when it is needed.

  • Page 8: Frost Protection

    Accessories Economizer Control (Free Cooling) Take advantage of cool outdoor air to handle space loads. A call for cool air is sent to the unit’s control center which triggers one of a few different options to bring in fresh cool air: Energy Wheel On/Off The wheel cycles off when it’s in the free cooling range (temperature or enthalpy), and cycles on when outdoor air is too warm or too cold.
  • Page 9 Arrangements Interior Top View Top View This compact design is ideal for the space limitations Supply Air that routinely complicate interior installations. Arrangement A Specify Arrangement A for interior mounting. All ERV Exhaust Air Supply Exhaust Air sizes are available in this arrangement. Fig. 1 is typical for ERV-251, -361, -521, and -581.
  • Page 10 Dimensions ERV-251, ERV-361, ERV-521, ERV-581 Exterior Dimensions Duct Dimensions Weight Model (lbs.) ERV-251 ⁄ ERV-361 ⁄ ⁄ ERV-521 ⁄ ⁄ 1290 ERV-581 ⁄ 1470 Arrangement A Arrangement B All dimensions shown are in inches. Weight assumes outdoor unit with filters, weatherhoods, and supply damper. Arrangement A Arrangement B Outdoor Air Discharge...
  • Page 11 Dimensions ERV-522 and ERV-582 Exterior Dimensions Duct Dimensions Weight Model (lbs.) ERV-522S ⁄ 3230 ERV-522H 3230 ERV-582H ⁄ ⁄ 3700 All dimensions shown are in inches. Weight assumes outdoor unit with filters, weatherhoods, and supply damper. Arrangement A Arrangement A Arrangement B Arrangement B Outdoor Air Discharge...
  • Page 12 Performance Supply and Exhaust - Belt and Direct Drive The airflow performance data shown Greenheck Fan Corporation certifies that the ERV models shown herein are licensed to bear applies to arrangement A and is licensed to the Air Performance AMCA seal. The ratings bear the AMCA Seal for Air Performance.
  • Page 13 Performance Supply and Exhaust - Belt Drive ERV-521S (Standard Airflow) EXTERNAL STATIC PRESSURE (in. wg) 0.125 0.25 0.375 0.50 0.75 1.00 1.25 1.50 FRPM 1072 1155 1238 1315 2,200 2,183 0.72 0.80 0.87 0.95 1.09 1.25 1.41 1.57 FRPM 1040 1081 1124 1203...

  • Page 14: Selection Guidelines

    Selection Guidelines Motor Specifications Open Two Speed Open Model Blower motor information 115/1 230/1 230/460/3 230/1 230/460/3 230/1 230/460/3 must be specified to select ERV-251S* ⁄ ⁄ unit. The horsepower, ERV-251H* ⁄ ⁄ voltage, phase and enclosure availability is presented ERV-361* ⁄...

  • Page 15: Typical Applications

    Typical Applications The ERV unit can add to the benefit of a building design anywhere that outdoor air is required and the exhaust air is considered “clean” (ASHRAE class 1 or class 2 air ratings). Some examples of commercial and institutional applications where energy recovery units have been utilized are given below.

  • Page 16: Our Warranty

    As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice. 00.TAP.1000 R7 6-2010 SN P.O. Box 410 • Schofield, WI 54476-0410 • Phone (715) 359-6171 • greenheck.com Copyright © 2010 Greenheck Fan Corp.

This manual is also suitable for:

Erv-522sErv-522hErv-582hErv-251Erv-361Erv-521 ... Show all

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