Greenheck Volume control dampers ( VCD )
Description
Control dampers regulate the flow of air in an HVAC system for intake, exhaust, or mixed air applications.
OVERVIEW
VCD
Volume control dampers are for use in HVAC systems requiring modulating airflow. VCD dampers can be used in applications as an automatic control damper with low to medium pressure and velocity systems. Units feature a blade design, which maximizes free area, increasing damper performance.
Description
PRODUCTS
Delivering top performing air movement and air control equipment.
As the worldwide leader in manufacturing high quality air movement and air control products, Greenheck offers ventilation equipment for commercial, institutional, and industrial buildings.
A line of damper products for fire and smoke control in life safety systems and for airflow control in commercial HVAC and industrial systems.
Damper products serve a valuable role in air movement. Products cover a wide variety of applications ranging from life safety to maintaining the control of outside air.
Related products
Greenheck HIGH VOLUME LOW SPEED (HVLS)
Description
Large diameter ceiling fans provide airflow for effective air circulation and enhanced comfort in commercial and industrial spaces. With a variety of benefits including personnel cooling, humidity control, and heat distribution, these fans are an ideal selection for many applications.
OVERVIEW
DS-M

Model DS-M high volume, low-speed (HVLS) ceiling fans are ideal for year-round comfort in air circulation and destratification applications. Featuring an aerodynamic, extruded aluminum airfoil design and a high-efficiency direct drive motor, model DS-M delivers maximum airflow at a fraction of the operating cost compared to other HVLS fans. Its universal ceiling mount and plug-and-play design make the DS-M fan the easiest HVLS fan to install in the market!
- Fan diameters between 16 and 24 ft.
- Up to 413,100 cmh (243,000 cfm)
Certifications:
AMCA Circulating Fan Performance
HVLS-M STANDARD TOUCHSCREEN CONTROL

The standard touchscreen offers both cost-effectiveness and functionality to an HVLS system. The sleek design fits in a standard 2x4 junction box and has an intuitive LCD screen. This controller allows the user to operate up to 3, 5, or 10 fans with any combination of models and sizes giving the user a wide range of flexibility when using the controller. The touchscreen offers password protection along with advanced diagnostics for ease of troubleshooting.
Greenheck Inline Fans
Description
Inline fan models meet a wide range of supply or exhaust applications in commercial and industrial facilities. There are models available for clean air, sound sensitive and heavy-duty industrial applications.
OVERVIEW
BSQ-M

Model BSQ-M is a belt drive, centrifugal inline fan for clean air applications including intake, exhaust, return, or make-up air systems where space is a prime consideration. Units feature removable side panels for easy access for inspection and service.
- Fan diameters range from 70mm up to 420mm
- Capacities up to 45193 CMH (26600 CFM)
- Up to 956 Pa (3.8 in. wg)
Certifications:
AMCA Sound and Air
QEI-M

The QEI-M is a mixed flow fan for commercial, institutional, and industrial applications handling everything from clean air to high temperature exhaust. Model offers multiple construction levels to match the application providing best performance at the most economical solution. Features performance enhancing airflow straightening vanes and easily accessible motor outside of the airstream. The QEI-M model has a variety of mounting options for indoor and outdoor locations.
- Capacities up to 55,900 cmh (32,900 cfm)
- Up to 1,244 Pa (5 in. wg)
- Chemical resistant coated steel
SQ-M

Model SQ-M is a direct drive, centrifugal inline fan for clean air applications including intake, exhaust, return, or make-up air systems where space is a prime consideration. Units feature removable side panels for easy access for inspection and service.
- Fan diameters range from 70mm up to 160mm
- Capacities range up to 8536 CMH (5025 CFM)
- Up to 436 Pa (1.75 in. wg)
Certifications:
AMCA Sound and Air
Greenheck Jet Fans
Description
Cars parked in an underground parking structure emit carbon monoxide (CO), smoke and other noxious fumes, which are hazardous. Ductless designs use transfer fans to dilute and remove contaminants and control the smoke.
OVERVIEW
GJ

Model GJ is a unidirectional jet fan, part of the GreenJet™ series, designed for car park ventilation needs. The unit features a true airfoil design propeller, which is designed to move high volumes of air at a high efficiency in a small diameter fan.
- Capacities range from 4200 to 10103 CMH (2472 to 5946 CFM)
- Thrust up to 73/18 N
Greenheck MANUAL BALANCING DAMPERS
Description
Balancing dampers are control dampers that balance the flow of air in an HVAC system. The intended applications for these dampers do not include a positive shutoff or for automatic control. The MBD series are shipped manual hand quadrants that can lock in place.
OVERVIEW
MBD-15

The MBD-15 is a multi-blade manual balancing damper regulating the flow of air in an HVAC system.
- Blade Type: 3V
- Pressure: Up to 1.0 Kpa (4 in. wg)
- Velocity: Up to 10.16 m/s (2000 fpm)
- Temperature: Up to 82°C (180°F)
Greenheck ROOF MOUNTED FANS
Description
Fan and ventilator products for commercial, institutional, and industrial roof installations, offering the industry’s best performance and durability for clean air applications.
OVERVIEW
RV-D

Model RV-D centrifugal roof exhaust fans provide the industry’s best performance and durability for clean air applications.
- Capacities up to 23,370 cmh (13,759 cfm)
- Up to 1,343 Pa (5.4 in. wg)
Certifications:
AMCA licensed for Air and Sound performance (AMCA 211 and 311)
Greenheck TUNNEL DAMPERS
Description
A tunnel transit damper is a heavy-duty flanged air damper designed to meet the rigorous environment of a transit tunnel. It is qualified to withstand the stresses and pressures of such environments. It meets the requirements of NFPA-130, NFPA-502, UL 555S, and BS476 standards.
OVERVIEW
HTD-630

The HTD-630 is a heavy duty industrial air control damper qualified for use in tunnel and transit systems. This model has a double flanged frame and features mechanically fastened silicone blade seals and stainless steel jamb seals.
- Meets the requirements of NFPA-130, 502, and UL 555S
- Blade type: fabricated airfoil
- Pressure: Up to 24 in. wg
- Velocity: Up to 4,000 fpm
- Temperature: 250°F continuous; 482°F for 2 hours (NFPA-130, 502)
- Fatigue Cycles: 8 million reverse cycles at 24 in. wg
HTD-636

The HTD-636 is a heavy duty industrial air control damper qualified for use in tunnel and transit systems. This model has a double flanged frame and features mechanically fastened silicone blade seals and stainless steel jamb seals.
- Meets the requirements of NFPA-130, 502, and UL 555S
- Fire Rating: BS476 two hours and approved for fire partitions of four hours or less where British Standards are required
- Blade type: Fire-rated fabricated airfoil
- Pressure: Up to 24 in. wg
- Velocity: Up to 4000 fpm
- Temperature: 482°F for 2 hours (NFPA-130, 502)
- Fatigue Cycles: 8 million reverse cycles at 24 in. wg
Greenheck Vane Axial Fans
Description
Vane axial inline fans are the most efficient axial design. Precision machining creates a tight tip clearance between blade tips and the fan housing. Integral straightening vanes redirect swirling airflow after the impeller into a linear flow at the discharge, further adding increased efficiency.
OVERVIEW
RA
Model RA is a high performance, direct drive vane axial fan. The casing design and construction are well suited for indoor or outdoor applications and can be easily installed in ducted or non-ducted systems. The RA fan is designed to significantly reduce operating costs with peak total efficiency ranging from 70-86%.
Model RA-3 Series vane axial inline fans are ideal for inline air ventilation in commercial, institutional or industrial buildings. The RA-3 Series provides you with more performance and price options.

- Capacities up to 200000 CMH (117,715 CFM)
- Up to 1700 Pa (6.8 in. wg)

- Fan diameters range from 315mm to 1600mm
- Capacities up to 215,000 CMH (126,544 cfm)
- Up to 1,367 Pa (5.5 in. wg)
Greenheck WALL MOUNTED FANS
Description
Wall-mounted propeller style fans are available for exhaust and supply applications.
OVERVIEW
AER-M

Direct drive fan with expanded performance range specifically designed for wall-mounted clean air applications. Available in sizes 500 to 900 mm.
- Capacities from 424 to 49,390 cmh (250 to 29,070 cfm)
- Up to 610 Pa (2.45 in. wg) of static pressure
Certifications:
AMCA licensed for Air and Sound performance (AMCA 211 and 311)