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Home My WebLink AbouthoodrequirementsworksheetREQUIREMENTS FOR VENTILATION HOOD PLANS Submit at least one set of plans. After review and revisions, three sets must be submitted for approval and stamping. Plans are to be drawn to ¼ inch per foot scale, containing but not limited to the following: •HOOD WORKSHEET •Plan view: o Outline of exhaust hood over cooking equipment o Clearances around equipment & to walls o Exhaust & make-up air fans on roof o Exhaust & make-up air ducts with details to the fans on the roof o Make-up air diffusers on ceiling o Make & model numbers of equipment & fans o All dimensions of equipment & ducts •Front & side elevations showing: o Cooking equipment o Exhaust Hood overhang o Duct elbows and fans •Type & gauge of metal used in exhaust hood & ducts •Specify if exhaust hood is Type I, Type II, Listed, non-canopy, compensating, etc. •Name, address & phone number of facility & exhaust hood designer •Submit one set of manufacturer's specification sheets for: Cooking Equipment, Exhaust & Make-Up Air Fans with performance charts, Listing Card •Plans must conform to the California Mechanical Code •Air Balance Schedule •Submit an Air Balance Report before Final Inspection HOOD WORKSHEET Facility Name: Date: Site Address: Submitted by: Phone Number: Fill in cooking equipment & hood dimensions in feet in the plan view below: Non-Compensating☐ YES☐ NO☐ YES☐ NO☐ YES☐ NO☐ YES☐ NO☐ YES☐ NO☐ YES☐ NO☐ COOKING EQUIPMENT & EXHAUST HOOD: What type of Exhaust Hood? TYPE I☐ TYPE II☐ Compensating☐ Are casters & quick disconnecting gas lines with restraining cables specified? Gas line exit wall at least 24” above floor specified? Exhaust Hood long enough to allow at least 6” from the inner rim on sides of equipment? Exhaust Hood wide enough to allow at least 6” in front & back of equipment? Canopy lip at least 6.5’ above floor & no more than 4’ above cooking surface? Canopy free of exposed horizontal electrical & Ansul lines? Are the Duct and Hood material in compliance with the California Mechanical Code? EXHAUST CALCULATIONS: Backshelf☐ Double Island Canopy☐ Eyebrow☐ Single Island☐ Wall-mounted☐ NON LISTED: Exhaust CFM = AIRFLOW X Length of Hood Exhaust Hood Length ft X Airflow CFM/ft = CFM LISTED HOOD: Exhaust CFM = Listing Card at Rated Temperature X Length of Hood Exhaust Hood Length ft X Listing Card CFM/ft = CFM FILTERS: Size: Height in. Width in. Usable Grease Filter Area in² CFM ÷ 360 FPM = ft² (filter area needed) Usable Grease Filter Area in² ÷ 144 =ft² (filter area per filter) ft² (filter area needed) ÷ ft² (filter area per filter) =# of Filters Min # of Filters Actual) = YES☐ NO☐ N/A☐ YES☐ NO☐ N/A☐ YES☐ NO☐ N/A☐ Ideal FPM = 300; should be 250-350 (Listed Hoods can be above or below) Horizontal Slot Filters ideal FPM= 1,000; should be between 800-1,200 Total width of filters must be less than the Exhaust Hood Length DUCT: Square: Length in. X Width in. = in² Round: 3.14 X radius² = in² in² ÷ 144 = ft² CFM ÷ ft² = FPM Is the FPM between 500 – 2,500? YES☐NO☐ Exhaust Hood greater than 12 feet long must have more than one outlet to main exhaust duct unless it is a Listed Hood. Is there more than one outlet to the main exhaust duct? YES☐ NO ☐ LISTED☐ N/A☐ YES☐ NO☐ CFM ÷ (ft² (filter area per filter) X # of Filters Actual FPM Model Number YES☐ N O ☐ N/A ☐ Horse Power YES☐ N O ☐ N/A ☐ STATIC PRESSURE AND EXHAUST FAN: Number of elbows Is there a cleanout at each elbow? Total System Static Pressure “sp Exhaust Fan: Manufacturer Exhaust Fan Static Pressure Is the Exhaust Fan UL 762 specified for the Type I hood? Does the Exhaust Fan CFM pull at the Total System Static Pressure? YES☐ NO☐ MAKE-UP AIR: CFM ÷ 2,000 CFM = Number of Diffusers Make-up Air Static Pressure “ sp Horse Power YES☐ NO☐ YES☐ NO☐ YES☐ NO☐ N/A☐ Make-up Air Fan: Manufacturer Model Number Is the Make-up Air 90-100% of exhaust CFM at the sp? Is the Make-up Air intake on roof at least 10 feet from exhaust? Are the diffusers on ceiling at least five feet from the edge of the exhaust hood? Are the Exhaust and Make-up Air fans interlocked? YES☐ NO☐ “sp Exhaust Fan CFM Submitted by: Prepared by: Phone Number: Phone Number: