Duke SPFM User Manual

SUGGESTED SPECIFICATIONS FOR VENTILATOR MODEL SPFM

Exhaust Ventilator to be SOUTHERN ENGINEERING SYSTEMS by Duke Mfg Co., model
SPFM, Type I, UL Listed, hood and damper assembly, in compliance with NFPA Bulletin 96.
Ventilator shall be high velocity, low volume, wash type and have a nominal 95% grease extraction
efficiency certified by an independent testing laboratory.

Canopy constructed of 18-gauge stainless steel (where exposed) with bottom perimeter edges
gutterless. Weld extraction chamber, plenum, and external seams and joints to form a liquid tight
construction. Polish stainless steel to a #3 finish.

Exhaust plenum Extraction Chamber to be single inlet, same material as canopy, full length of section
at the back. Furnish water wash manifold consisting of a series of spray nozzles installed within
chamber. Manifold to be positioned within plenum area out of air-stream to minimize nozzle clogging.
Bottom of exhaust plenum to be formed into a pitched trough to allow laminar flow, during wash cycle,
to drain pipe connection.

Water Wash System to serve the dual purpose of daily cleaning and fire control. The wash cycle shall be
initiated when the stop/wash button on the control cabinet (required with each hood system) is
depressed. Internal cleaning will be achieved by means of 110˚ - 160˚F water mixed automatically with
injected detergent. In the event the fire control system is activated, the system shall supply a continuous
fire quenching spray. Fire quenching spray shall continue to operate until the reset button is pushed.
Pressing the start button will restart the fan system.

Install hinged, motorized Fire Damper full length at air inlet of ventilator. Damper opens when
ventilator is in normal operation, acting as an extracting baffle, and closes when ventilator is turned off
to allow thorough cleansing of extraction chamber interior. Damper automatically closes, sealing
interior of ventilator from fire when thermostat senses 325˚F.

Furnish Duct Collar, fully welded, complete with fire detection thermostat, in top of canopy within
exhaust plenum area. Duct collar size based on an average 1800 F.P.M. air velocity.

Integral Make-Up Air furnished at front of ventilator shall be
proprietary “Lazy Air” design. Outside shell constructed of 18-gauge stainless steel integrated with
canopy. Front face of chamber fitted with full height by full width 18-gauge stainless steel perforated
panels. Panels to be designed to distribute make-up air outward at low velocity. Front panels shall be
hinged at top to allow easy access to interior of make up chamber. Make-up air changer fitted with an
interior diffuser baffle designed to provide even air distribution across the perforated surface. Top of
chamber to be fitted with a properly sized rectangular duct collar. Make-up air duct collar sized to
permit maximum 85% supply air.

Furnish Rod Hanger Brackets at front and rear to suspend canopy from ceiling. Furnish angle frame
members at rear for fastening to wall.

SOUTHERN ENGINEERING

Canopy shall be UL Listed and NSF approved. All equipment built in an ISO 9001:2000
approved manufacturing facility

2305 N. Broadway
St. Louis, MO 63012
Ph 314-231-1130
Fax[phone]
www.dukemfg.com

BY

"Your Solutions Partner"

6/07

Exhaust Requirements Make-up Air Requirements

CFM ________________ SP (“w.g.) _____________ CFM ________________ SP (“w.g.) __.25____

Duct Collar ________ “x ______________” Duct Collar ________ “x __________”

Fire Protection Lighting Fixtures

(Submit cooking equipment plan showing make (NOT AVAILABLE)

and model on equipment.)

 Ansul Wet #R-102
 Other ___________________________________
 Internal Piping Only  Enclosure paneling
 Complete System (Finished ceiling higher than 9’0”)
 By Others  Loose duct collars

NOTE: Fuel shut-off devices by others (unless specified
otherwise).

Optional Accessories

Design Option

 VC-1C S/S Control Cabinet with push button controls
 VC-1M S/S Control Cabinet with programmable Mode Commander Microprocessor

Shipping Wt. 100 lbs./Linear Ft.

COMMENTS/NOTES ____________________________________________

DIFFUSER BAFFLES

18 GA. S.S. PERF. PANELING
HINGED AT TOP FOR ACCESS

T-STAT

G.I. ANGLE AT REAR
FOR WALL MOUNTING