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  • QD-Cat_GravityVentilators

    18 Model Best Available Program GRS-8 through 30 In stock GRSF-10 and 12 GRS-36 through 48 1 Day GRSF-8, 15 through 24 FHI, FGR 10 x 10 through 72 x 180 5 Days RGU-18 through 60 GRS GRSF FGI, FGR RGU Gravity Ventilators Standard Construction GRS GRSF FGI, FGR RGU Housing - spun aluminum „„ Housing -

  • Vari-Green Control - Indoor Air Quality - Temperature/Humidity

    "Product Specification GuideVari-Green Control – Indoor Air Quality – Temperature/Relative Humidity Control to be a packaged indoor air quality control designed to regulate fan speed based on level of temperature and/or relative humidity in a space. Control shall include a Proportional Integral Deri

  • MBD-10

    MBD-10 Manual Balancing Damper Application MBD-10 April 2023 Model MBD-10 is a manual balancing damper designed to regulate the flow of air in a HVAC system. They are not intended to be used in applications as a positive shut off or for automatic control. The manual quadrant has an integral pointer

  • WD-300 Series

    WD-300 Series Backdraft Damper Vertical Mount - Horizontal Airflow Application WD-300 Series January 2024 The WD-300 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-300 features a pressure sensitive blade design that opens and remains open under low

  • Gravity Ventilator, Model FGR

    "Product Specification GuideModel FGR Fabra Hood Relief Gravity VentilatorFacility Services Subgroup: Division 23 Section 23 37 23 ************************************************************************************************************************ Specifier Notes: This product specification guid

  • Vari-Green Drive

    Vari-Green® Drive ENERGY | CONTROL | INTEGRATION Designed from the Ground Up Greenheck’s Vari-Green Drive® has been custom designed to offer the same benefits as Vari-Green technology for use in three phase applications while supporting the reduction in operating costs and maximizing the efficiency

  • November 2021 Greenheck HVAC University Classes

    HVAC University Course Descriptions Classes • November 2 – Proper Application and Specification of Ceiling Radiation Dampers and Ceiling Radiation Damper- Ceiling Exhaust Fan Combinations • November 3 – Make-Up Air Ventilation • November 4 – COVID Mitigation Strategies Utilizing HVAC Systems • Novem

  • ESD-635HP

    ESD-635HP Stationary Louver, Drainable Blade Extruded Aluminum ESD-635HP August 2023 Document Links Louver Finishes Colors Louver Product Selection Guide Louver Products Catalog Louver Warranty Statement Options and Accessories • Bird Screen • Blank Off Panels • Extended Sill • Filter Rack/Filter •

  • Industrial Damper Torque - How the Options You Select Affect Actuator Selection and Costs (DA/102-13)

    "® A technical bulletin for engineers, contractors and students in the air movement and control industry. P.O. Box 410 • Schofield, WI 54476 • 715.359.6171 • Fax 715.355.2399 Copyright © 2013 Greenheck Fan Corp. Damper Application DA/102-13 Industrial Damper Torque — How the Options You Select Affec

  • Wind Driven Rain Testing for Louvers (LA/103-19)

    "P.O. Box 410 • Schofield, WI 54476 • 715.359.6171 • Fax 715.355.2399 Copyright © 2020 Greenheck Fan Corp. ® A technical bulletin for engineers, contractors and students in the air movement and control industry. Louver Application LA/103-19 Wind Driven Rain Testing for Louvers Different regions of t

  • India Business Unit Directory

    Product Support Directory Greenheck India Greenheck India Fans GIN.Application@greenheck.com Centrifugal Fans CDB-100 CDB-200 CDB-300 CSB Inline Fans BSQ-M SQ-M Jet Fans GJ High Volume Low Speed Fans DS-M Fume Exhaust Fans FJ-M Plenum Fans APM-M Vane Axial Fans RA Series (RA and RA-3) Wall Mounted F

  • Single/Three Phase Vari-Green Motor Quick Start Guide (#484390 IOM)

    Quick Start Guide Single/Three Phase Vari-Green® Motor Vari-Green Motor Quick Start Guide When delivered, the Vari-Green Motor is preprogramed to run from either an on-board dial or a 0-10 VDC control signal. A 0-1.99 Volt control signal will be received as a “stand-by” command. A run command is ack

  • BTDR-50 (#486079 IOM)

    ® BTDR Series 1® Document 486079 BTDR Series Installation, Operation and Maintenance Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all saf

  • EHH-601D, Flange/Sleeve Installation (#474641 IOM)

    ® EHH-601D Flange/Sleeve Installation 1® Installation, Operation and Maintenance Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety

  • Vari-Green Drive, Model 100

    "Product Specification GuideVari-Green Drive – Model 100 Vari-Green Drive to be a factory mounted and wired variable frequency drive compatible with induction and permanent magnet motors. Drive shall be factory programmed to match the characteristics of the fan and motor on which it is installed. Op

  • Automatic Balancing Dampers Catalog

    Automatic Balancing Dampers Model ABD Application and Selection Guide September 2022 Page Header Page Header 2 2 2 Traditional Balancing System With Pressure Fluctuations Balanced System Stand-alone balancing dampers cannot adjust to changes in pressure resulting in incorrect airflows. The consequen

  • Models DG and DGX Direct Gas-Fired Make-Up Air

    March 2018 Direct Gas-Fired Make-Up Air Models DG and DGX Commercial, Industrial and Kitchen Applications • 800 - 48,000 cfm • 4 in. wg External Static Pressure • Direct Gas-Fired Heating • Optional Cooling - Packaged DX (2.5 to 16 tons) - Split DX - Chilled Water - Evaporative Cooling • Supply Fan

  • How to Select an Actuator

    "Step 1 Determine if the actuators need to be electric or manual. Step 2 If the actuators are to be electric, determine what voltage (120 VAC, 24 VAC, etc.) and what Hertz (50 or 60 cycles/second) are required. If the voltage requirement is not the same as the actuator, (i.e. the actuator is 120 VAC

  • Grille Options

    1 1 4 1 8 Listed Size Listed Size - 1 2 .666 Listed Size + 2 Vertical Deflection Blades 1 15 16 0.666 3 4 3/16 Diameter Hole (Countersunk) Mounting Holes Face View - Vertical Blades .6665 32 1 1 4 Listed Size - 1 2 Listed Size 17 8 Listed Size + 2 Horizontal Vertical Deflection Blades Mounting Holes

  • Model MSX Make-Up Air Unit

    Modular Make-Up Air Unit Model MSX Commercial, Industrial, and Kitchen Applications May 2024 2 Applications Product Overview Model MSX is an ideal make-up air unit where gas-fired heating is not desired or available. The flexible design offers coil heating and/or cooling options with airflow capacit

  • "AFJ-801 (8"" Frame, J-Blade)"

    AFJ-801 Acoustical Louver, J Blade Formed Aluminum Standard Construction Frame Heavy gauge formed aluminum, 8 in. (203 mm) x 0.080 in. (2 mm) nominal wall thickness Blades J style, heavy gauge formed aluminum, 0.080 in. (2 mm) nominal wall thickness, positioned 45º on approximately 5 in. (127 mm) ce

  • Quick Start Guide Isolator Mounting (#469092 IOM)

    SQ AND BSQ ISOLATOR MOUNTING Quick Start Guide NOTE: SQ and BSQ centrifugal mounting information on reverse side Mixed Flow Fan - SQ Isolator Mounting Move SQ mixed flow fan to the desired location and determine the position in which the unit is to be mounted: • For horizontal mount applications (ex

  • Model USF (#479870 IOM)

    ® Universal Single Width Fans 1® Installation, Operation and Maintenance Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety informat

  • Temperature Control Package v2.0 (#461468 IOM)

    Part # 461468 Installation, Operation, and Maintenance Manual Temperature Control Package Models ERH, ERCH, and ERT WARNING Disconnect and secure all electrical power to the “OFF” position on the unit prior to inspection or servicing. Failure to comply with this safety precaution could result in ser

  • Coil Selection Software Instructions

    "Coil Selection Software Program - Tips for Getting Started How do I enter job information? You’ve downloaded the program and you’re ready to begin. You want to enter specific job information, but how? You can access the Job Properties window from the Main window three ways: press F7, pick Propertie

  • Fire Dampers 101 – Types, Testing, and Ratings

    Fire dampers play a very important role in protecting buildings and saving lives in the event of a fire. Building codes require fire dampers to maintain the fire-resistance ratings of walls, partitions, and floors when penetrated by air ducts and transfer openings. (Figure 1) Upon detection of eleva

  • SEVCD-23

    Application The SEVCD-23 is a severe environment 316SS low leakage control damper with 316SS stainless steel 3V blades. The SEVCD-23 is intended for application in low to medium pressure and velocity systems. Low profile head and sill used on sizes less than 17 in. (432mm) high. This model is also I

  • "FSJ-602 (6"" Frame, J Blade)"

    FSJ-602 Stationary Louver, J Blade Galvanized Steel Standard Construction Frame Galvanized steel, 6 in. (152 mm) x 16 gauge wall thickness Blades J style, 20 gauge galvanized steel wall thickness, positioned 45º on approximately 5.5 in. (140 mm) centers Louver Depth 6 in. (152 mm) Construction Mecha

  • Model SP and CSP Options and Accessories

    ® Model SP and CSP Options and Accessories 00.F&V.NB012 R1 5-2019 Copyright © 2019 Greenheck Corporation ® P.O. Box 410 • Schofield, WI 54476 • Phone: (715) 359.6171 • greenheck.com Grille Mounted Humidity/Motion Combination Sensor with Time Delay Grille Mounted Motion Sensor with Time Delay Integra

  • Wall Bracket (#483966 IOM)

    Wall Bracket 1 Document 483966 Wall Bracket Centrifugal Upblast Exhaust, Sizes 060-300 Installation, Operation and Maintenance Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protec

  • Vari-Green Control - Indoor Air Quality (VOC)

    "Product Specification GuideVari-Green Control – Indoor Air Quality – VOC (Volatile Organic Compound) Control to be a packaged Indoor Air Quality control designed to regulate fan speed based on level of VOC concentration in a space. Control shall include a Proportional Integral Derivative (PID) feed

  • Vektor-H Performance

    April 2017 Laboratory Exhaust Systems Vektor®-H Performance High Plume 2 Laboratory Exhaust Systems Model Vektor®-H Table of Contents Vektor-H Specification Chart ..........................................3 Plume Height Calculation.............................................3 Quick Select Chart ...

  • HB-XX Series

    "P.O. Box 410Schofield, WI 54476 Phone: 715.359.6171www.greenheck.com Product Specification GuideModel HB-xx0 Series Backdraft DampersFacility Service SubGroup: Division 23 HVAC (Previously Division 15) ************************************************************************************************

  • A Guide to Disconnect Switches for Ventilation Products (FA/106-00)

    "product application guide ® A technical bulletin for engineers, contractors and students in the air movement and control industry. Fan Application FA/106-00 P.O. Box 410 • Schofield, WI 54476 • 715.359.6171 • Fax 715.355.2399® Copyright ' 2000 Greenheck Fan Corp. A guide to disconnect switches for

  • Weatherhood (#472040 IOM)

    ® Weatherhood 1® Assembly and Installation Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with th

  • MS4120, MS4620, MS8110, MS8120, MS7510, MS7520 Series (#464287 IOM)

    Model Volts Running Holding MS4120F1006 120 VAC 35W 10W MS4120F1204 MS4620F1005 230 VAC 35W 10W MS4620F1203 MS7510A2008 24 VAC/VDC 14W 5W MS7510A2206 14W MS7520A2007 16W MS7520A2015 22W MS7520A2205 16W MS7520A2213 22W MS8110A1206 24 VAC/VDC 30W 8W MS8120F1002 24 VAC 45W 10W MS8120F1200 These instruc

  • WDR-53

    WDR-53 Round Backdraft Damper Application WDR-53 January 2024 Model WDR-53 is a round backdraft damper that can be mounted horizontally for vertical up or down airflow. This model can also be mounted vertically for horizontal airflow. Standard Optional Frame Material Galvanized Steel Frame Thickness

  • WD-100 Series

    "WD-100 Series Backdraft Damper Horizontal Mount - Vertical Airflow Up Application WD-100 Series January 2024 Standard Frame Material Galvanized steel Frame Thickness 18 ga. (1.3mm) Frame Type No Flange (WD-100) Flange on Discharge (WD-110) Flange on Intake (WD-120) Blade Material Roll formed alumin

  • Louver Fundamentals: Understanding Louver Performance Criteria

    The proper selection of louvers can be complex as many variables determine how they will perform. An understanding of basic louver performance criteria including free area, air volume, the beginning point of water penetration, and pressure drop can help guide your louver selection process. These per

  • Smoke Detector DUCT SD

    "The primary purpose of duct smoke detection is to prevent injury, panic, and property damage by reducing the spread (recirculation) of smoke. The detector samples air currents passing through a duct and gives dependable performance for management of smoke and combination fire smoke dampers. Duct sm

  • Louver Requirements for the Hurricane-Prone Region

    Nearly 40 hurricanes and tropical storms have made landfall in the United States (U.S.) and its territories in the past 10 years. These storms pose an extreme risk for inhabitants of the areas affected. This risk includes injury and loss of life. Risk also extends to damage incurred to property—home

  • The Difference Between Energy Codes and Energy Regulations in the HVAC Industry

    Energy codes and regulations have a significant impact on the HVAC industry, however, confusion exists between the two, not only about where they apply but who they apply to and how they are enforced. Energy codes are generally a set of minimum requirements regarding energy efficiency that must be m

  • What You Need to Know about the Refrigerant Transition

    The transition to low global-warming refrigerants in the HVAC/R industry has been making headlines as the EPA deadline for most HVAC/R products to conform to the new refrigerant regulation is January 1, 2025. The following provides the basics on refrigerants and the impacts of the new regulation. Wh

  • The Basics of Fan Performance Tables, Fan Curves, System Resistance Curves, and Fan Laws

    Product Application Articles: The Basics of Fan Performance Tables, Fan Curves, System Resistance Curves, and Fan Laws Knowledge of fan performance tables, fan curves, system resistance curves, and fan laws is vital for fan selection. Many fan and HVAC product manufacturers offer computerized select

  • Understanding Fan System Effects

    The air movement industry uses a common term to describe certain inlet and outlet conditions that adversely affect fan performance. The term used is “system effect.” Perhaps the term should be “fan installation effect” because system effect results from the difference in how the fan was tested, comp

  • Podcast: Understanding Fan Energy Index (FEI)

    Consulting Specifying Engineer: Understanding Fan Energy Index (FEI)In this Consulting Specifying Engineer podcast, Greenheck Principal Application Engineer, Tyler Mancl P.E., discusses how FEI is a true energy efficiency metric and explains how an understanding of FEI can help engineers with code c

  • How to Prevent Thermal Expansion and Contraction in HVAC Grilles, Registers, and Diffusers (GRD)

    What if the occupants of a newly constructed building hear clicking or popping noises coming from the linear diffusers as the air conditioning is cooling the space? This issue can be frustrating, and it's important to understand why this situation can occur and how to prevent it from happening. In t

  • Benefits of Heating Warehouses with Direct Gas-Fired Equipment

    Direct gas-fired equipment has been used for many years in industrial make-up air applications. Benefits including 92% thermal efficiency, low first cost, and compact footprints make direct gas-fired equipment the ideal choice. For these same reasons, direct gas-fired equipment is also a great fit f

  • Benefits of Air Balancing and Commissioning for Make-Up Air Units

    Make-up air unit commissioning for new projects or pre-existing buildings is a quality assurance process to verify and document that HVAC systems function as specified and meet the operational needs of the building. The value of the initial commissioning is represented by operating savings, unit per

  • Achieve Long-Term Indoor Air Quality with These DOAS Fundamental Features

    Investing in dedicated outdoor air systems (DOAS) for your building can ensure lasting indoor air quality (IAQ) for the life of the equipment. This assumes the DOAS units receive regular maintenance and that the DOAS equipment you purchase has the fundamental features designed to protect the unit. T

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