GREENHECK KSQ Untempered Mixed Flow Roof Supply Fan User Manual

KSQ Untempered Mixed Flow Roof Supply Fan

Untempered Mixed Flow
Roof Supply Fan
Model KSQBUILDING VALUE IN AIR
December
2023

Model KSQ provides a unique combination of installation flexibility, ease of service, high efficiency, and low sound levels. Fans are compact and ideal for filtered roof-mounted supply or untempered makeup air systems in clean air environments. These fans deliver competitive advantages in a wide range of applications.
Washable aluminum filters are provided with the option to add pleated MERV 13 filters.

•Untempered Make-Up Air
• Kitchen Supply
• Clean Air Environments
• Stairwell/Elevator Shaft Pressurization

FEATURES AND BENEFITS

• Mixed flow wheel improves airflow and efficiency while reducing sound and footprint (many selections meet or exceed FEI >1)
• Panels on either side of a unit provide quick access and inspection
• Totally enclosed direct drive motors eliminate the need for a motor cover, improve accessibility and reduce maintenance
•  Aluminum 1-inch filters are provided standard; MERV 13 filters are optional
• Vari-Green® motor offering up to and including 10 hp

PRODUCT CERTIFICATIONS’

Greenheck takes pride in offering a high-quality, reliable product. We invest our resources into designing, testing and manufacturing products to ensure customer satisfaction.

UL/cUL 705
Listed for Electrical
Listed for Indoor and Outdoor Use
File no. E40001

Greenheck Fan Corporation certifies the model KSQ fans shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

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Construction Features

Housing Construction

Fan housing is constructed of rigid structural members and formed galvanized steel panels designed to maximize outlet area for efficiency and quiet operation. Panels are weather-resistant and designed for long lasting durability and dependability. UL/cUL 705 listed for outdoor use.
Weatherhood and outdoor covering ships knockeddown for field installation.

Wheel
Mixed flow wheel technology delivers industryleading performance, efficiency and sound. Each wheel is statically and dynamically balanced.
Motor
Totally enclosed motors allow for easier access by not requiring an additional motor cover.
Maximize your efficiency and controllability by using Greenheck’s Vari-Green ®motors.
**Access Panels***
The housing construction features two removable access panels permitting easy access to all interior components.

Filtration
Both horizontal and bottom intake hoods come standard with 1-inch washable aluminum filters.
In applications where higher levels of filtration are required, 2-inch MERV 13 filters are available with bottom intake hoods.

Discharge
Discharge configuration can be either horizontal or bottom. Horizontal discharge is connected through ductwork into building.
Intake
Intake configuration can be either horizontal or bottom. Changing the configuration will change the fan’s performance. Disconnect Switches
A NEMA-3 disconnect switch is provided as standard. All wiring and electrical components comply with the National Electric Codes and materials are UL listed. Other NEMA enclosure disconnect switches are optional.

Coatings
A variety of special coatings ranging from enamels to phenolics are available for decorative or protective purposes. When a special coating is selected for the fan, accompanying accessory items are also coated unless specified. Fan wheel is not coated.
Permatector™ is our standard coating.
Typically used for applications that require corrosion resistance in indoor and outdoor environments. Color is RAL 7023 concrete grey.

Hi-Pro Polyester is resistant to salt water, chemical fumes and moisture in more corrosive atmospheres. It has superior chemical resistance, excellent abrasion and outdoor UV protection.
This coating has protective qualities that exceed Air Dry Heresite. Color RAL 7023 concrete grey is standard; choose from seven standard decorative colorsor color match any color.

Options and Accessories

Roof Curbs
Prefabricated roof curbs reduce installation time and costs by ensuring compatibility between the fan, the curb, and the roof opening. All curbs are available with one-inch, two-inch, or no insulation. A wide variety of roof curbs are available including: flanged,
pitched, and sound-absorbing.

Curb Extensions
Extensions raise the fan discharge above the roof line and provide an accessible mounting location for dampers. Insect screen bases, constructed with a removable fine mesh, are recommended for applications where insect entry must be prevented.

Roof Curb Adapters/Reducers
Welded curb adapters designed to adapt the fan to an existing curb size. Useful in retrofit applications where current curb size is larger/smaller than the KSQ curb dimensions.

Equipment Supports
Equipment supports are designed for use on both insulated and non-insulated flat roof decks. They are mounted directly to the deck structure, then roofed and flashed for weather tightness.

Duct Adapters
Duct adapters fit over the roof curb and support the  top of the duct allowingductwork to be completed before the fan is set in place. Duct adapters also limit performance losses by directing airflow into the duct. Square Duct Mounting Collars
Outlet square duct mounting collars are available for slip fit duct connection on horizontal discharge only.
Square duct mounting collars are shipped separate for field installation.

Isolator Kits
Complete isolation kits for base mount applications are available with either neoprene or spring isolators and are sized to match the weight of the specified fan size. Backdraft Dampers
Gravity or motorized parallel blade dampers (model WD-330) are available for duct mounting.
These dampers feature sturdy galvanized frames, aluminum blades with vinyl blade seals, and a balanced design for minimal resistance to airflow. Dampers are shipped separate for field installation.

Control Dampers
Square, opposed blade volume control dampers (model VCD) are available for duct mounting.
These dampers feature sturdy galvanized frames, and steel blades with optional blade and jamb seals. A balanced design results in minimal resistance to airflow. Dampers are shipped separate for field installation.

Model KSQ

Typical Installation
Model KSQ untempered roof supply fan is designed for roof mounting in clean air systems. Typically used in a kitchen setting, the bottom intake hood allows for a closer installation between kitchen supply and exhaust fans. For horizontal discharge a minimum of three wheel diameters of ductwork are required to minimize system effect losses. Installation must meet all local governing codes, NEC, and when used in a kitchen exhaust scenario NFPA 96.

NFPA Considerations

The National Fire Protection Association (NFPA) specifies minimum distance criteria for restaurant exhaust and supply fans:

Option A

• Roof deck to top of exhaust fan windband: 40 inches minimum
• Roof deck to top of curb: 18 inches minimum
• Supply fan intake: 10 feet minimum from all exhaust fans

Option B
For applications where the 10 foot horizontal distance cannot be met, vertical separation between exhaust and supply must be at least 36 inches. Bottom intake hood configurations are ideal for this application.

Configuration and Performance

Discharge Configurations
Four different KSQ configurations are available based on the system’s requirements. MERV 13 filters are only available with bottom intake hood configurations.

Performance

Performance shown is for unit with horizontal intake and bottom discharge. Performance will change slightly depending on the intake/discharge configuration.

Dimensions

Fan Dimensions

All dimensions in inches and weight is shown in pounds. ^Weight shown is standard galvanized construction and largest cataloged totally enclosed motor.

Mounting Dimensions

Fan Size| Recommended
A (Length)| Curb Size
B (Width)| C| D| E
---|---|---|---|---|---
7| 11-1/2| 14-1/4| 8-1/4| 12| 13-1/8
9| 15-1/4| 16-1/4| 11-1/4| 14| 16-7/8
12| 18-1/4| 19-1/4| 14-1/4| 17-1/2| 20
1| 22| 24-1/4| 18-1/4| 22| 23-3/4
16| 24| 25-1/4| 18-1/4| 23| 25-3/4
18| 26-3/4| 26-1/4| 22-1/4| 24-1/8| 28-3/8
20| 29-1/4| 29| 24-1/4| 26-5/8| 31
22| 32-1/4| 31-3/4| 27-1/4| 29-1/2| 33-3/4
24| 35-1/2| 35-1/4| 30-1/4| 33| 37-1/4
27| 39| 38-1/2| 33-1/4| 36-1/2| 40-3/4
30| 43| 42-3/4| 36-1/4| 40-1/2| 44-3/4
Do| 47-1/2| 47| 40-1/4| 44-3/4| 49

Var-Green ® Options

Model KSQ is available with Greenheck’s Vari-Green ® technology. Greenheck’s Vari-Green products are designed for efficiency, controllability, and low maintenance.

Motors
The Greenheck Vari-Green motor is an electronically commutated (EC) motor that operates on single or three phase AC input power and internally converts it to DC power providing improved speed control capabilities (up to an 80% turndown) and higher  fficiencies than standard motors. The Vari-Green motor blends technology, controllability and energy efficiency in a low-maintenance package that has changed the way the industry designs, specifies and operates air movement equipment. Depending on power rating, Vari-Green motors are available in both single and three phase with either a mounted dial on fan potentiometer (speed control) or wired to accept a 0-10 VDC control signal from an external source. Controls
Greenheck offers a wide array of control options for pairing with Vari-Green motors. These controls are available for applications requiring manual operation or demand-controlled ventilation (DCV).
Applications utilizing DCV controls provide only the desired amount of ventilation, delivering building owners savings on their energy bills.

Manual Controls

• Dial on Fan
• Remote Dial
• Touch Remote

Demand Controlled Ventilation

• Hand/Off/Auto (HOA)
• Constant Airflow
• Constant Pressure
• Air Quality – Volatile Organic Compound (VOC)
• Air Quality – Temperature/Humidity
• 0-10 VDC Signal from Building Management System (BMS)

Extraordinary Service

Quick Delivery and Quick Build
Greenheck’s Quick Delivery (QD) and Quick Build (QB) programs have the industry’s most comprehensive offering of commonly requested ventilation equipment.

The QD program has more than 1000 of the most in-demand products in stock, ready to ship. Some products require specific customization to meet the demands of a project. The QB program offers an even larger assortment of configure-toorder products built just for you, in the time frame you need!
Greenheck’s Quick Build (QB) program ensures these products can be manufactured as needed in 1, 3, 5, 10, 15, and 25-day manufacturing cycles.

Computer Aided Product Selection
All Greenheck products are supported by the industry’s best product literature, electronic media and two product selection tools – CAPS , our computer aided product selection software program and eCAPS ® , our online selection tool. These programs will guide you from initial design through detailed submittals.

And, of course, you can always count on the personal service and expertise of our national and international representative organization. To locate your nearest Greenheck representative call 715-359-6171 or visit our website at www.greenheck.com

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Our Commitment

As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice.
Specific Greenheck product warranties are located on greenheck.com within the product area tabs and in the Library under Warranties.

P.O. Box 410
• Schofield, WI 54476-0410
• Phone715-359-6171
•greenheck.com
00.F &V.1031 R1 12-2023
Copyright © 2023 Greenheck Fan Corp.

Documents / Resources

| GREENHECK KSQ Untempered Mixed Flow Roof Supply Fan [pdf] User Manual
KSQ Untempered Mixed Flow Roof Supply Fan, KSQ, Untempered Mixed Flow Roof Supply Fan, Mixed Flow Roof Supply Fan, Flow Roof Supply Fan, Roof Supply Fan, Supply Fan, Fan
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