Untempered Make-Up Air for Kitchen Systems
Models KSFB and KSFD
June 2006
PRODUCT FEATURES
Models KSFB and KSFD
Untempered Make-Up Air Unit
Greenheck’s series KSF is available in a belt drive (KSFB) and direct drive (KSFD). Both have a compact design providing untempered make-up air for commercial and institutional kitchen applications. Eight available blower sizes provide airflow capacities up to 10,500 cfm and static pressure capabilities up to 2.0 in. wg.
Installation may be stand alone or on a combination curb with exhaust fan. See page 3 for details.
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Weatherhood and Filters
A weatherhood is standard and meets NFPA 96 requirements when used with a combination package. See page 3 for details. All weatherhoods come standard with UL Class 2 rated, 1 in. washable aluminum mesh filters.
Vibration Isolators
The motor and wheel assembly is mounted on vibration isolators to minimize noise transmission into the building.
Reliable Fan Performance
Air performance ratings from Greenheck’s third party accredited test chamber
ensure accurate data. Double width, double inlet, forward curved wheels for high efficiency and low sound levels are constructed of heavy gauge steel. Wheels are statically and dynamically
balanced to ensure vibration free operation.
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Kitchen Fan Control Center (KFCC) Speed Controller
Prewired in compliance to the National Electrical Code, the KFCC simplifies field wiring, thereby reducing installation time and mistakes. The control center is a UL Listed NEMA 1 panel for mounting indoors. It is designed to interlock with the fire suppression system.
Remote Starter Control Panel (RSCP)
The Remote Starter Control Panel (RSCP) offers safety and reliability for remote operation of up to four fans. Standard NEMA 3R housing allows panel to be mounted outdoors.
•Multiple supply voltages
•Wide range of horsepowers
•Disconnect switch(es)
•Control transformer for low voltage remote switching
•Terminal strips
•Fuse blocks
•Electronic motor overload protection
Available on the KSFD, the speed controller provides an economical means of system balancing.
Roof Curbs
Prefabricated roof curbs are available to reduce installation time and costs by ensuring compatibility between the fan and the roof opening. All curbs are lined with fiberglass insulation to prevent condensation and reduce sound levels. See Greenheck’s roof curb catalog for complete details.
Special Coatings
Special coatings are available for decorative or protective purposes. Consult your Greenheck representative or the factory for more information.
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INSTALLATION
Standard
Arrangements
Series KSF has a compact design that is available in both downblast discharge (arrangement DB) and horizontal discharge (arrangement HZ).
Installations may be as stand alone supply |
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fans as pictured at right or as combination |
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packages with exhaust and supply fans on a |
Arrangement DB |
Arrangement HZ |
common curb as shown below. |
Combination
Packages
With either ten feet of horizontal separation or three feet of vertical separation, Greenheck has a combination package for your requirements. The Greenheck combination package simplifies installation and reduces field labor costs. This preengineered design offers the benefit of only one roof penetration for both supply and exhaust ducts, while ensuring complete compatibility and interface between the supply fan, exhaust fan, curb and combination extension.
Greenheck combination packages are specifically designed to comply with NFPA 96, which states:
•Exhaust duct must terminate at least 24 in. above the roof deck.
•Fan discharge must terminate at least 40 in. above the roof deck.
•There must be at least 10 ft. of horizontal or 3 ft. of vertical separation between the intake and exhaust discharge.
3 Ft. Vertical Separation - Short Weatherhood
3 ft.
Provides 3 ft. of vertical separation for compliance to NFPA 96.
10 Ft. Horizontal Separation - Extended Weatherhood
10 ft.
Provides 10 ft. of horizontal separation for compliance to NFPA 96.
Note: Consult local codes and the authority having jurisdiction if there are questions concerning the use of this product.
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