VENTILATED CEILINGS

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VENTILATED CEILINGS
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Ventilated Ceiling Benefits
UNOBSTRUCTED SIGHT LINES
? Hood literally DISAPPEARS? Allows
flexible, open design of space
AESTHETIC DESIGN
? Clean and flush? May be stainless steel or
custom color finish
QUIET OPERATION
? 57 dba Vs. 82 dba for hood? Noise level is
raised to ceiling level rather the
conventional 6-6AFF ? Amplification of the
hood box is no longer a factor
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Ventilated Ceiling Benefits
CUSTOM FABRICATION
? Can cover an entire room or an insolated area
SIMPLE EASY TO MAINTAIN
? Panels lift out easily ? Panels fit in dish
machine
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Ventilated Ceiling Applications
PRESTIGE ARCHITECTURAL PROJECTS
? Open sight lines hood DISAPPEARS?
Flexible design
DISPLAY / EXHIBITION COOKING
? Open design? Quiet operation front of
the house
CULINARY SCHOOLS
? Unobstructed view of space? Quiet
operation facilitates teaching
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Ventilated Ceiling Applications
CORRECTIONAL FACILITIES
? Elimination of the hood box reduces
hiding places for weapons and contraband?
Quiet operation - enhances security? Open
sight lines - enhances security
COOK-CHILL FACILITIES
? Hoist and rail can be mounted flush with
the ceiling? No hood box in the way
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Ventilated Ceiling Limitations
HEAVY / HIGH PRODUCTION COOKING

• High volume charbroilers
• Wok Ranges
• Conventional hood can be incorporated into a
  Ventilated Ceiling System

Best under conventional hood
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Ventilated Ceiling Components
INTEGRATION OF
? Grease Extraction / Exhaust System ? Make Up
Air Distribution ? Lighting (Fluorescent or
Incandescent) ? Fire Suppression System ? Blank
Ceiling Panels
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Ventilated Ceiling Components
Lights
Fire Protection
Exhaust
Supply Air
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Components
Grease Extract Cassette

• Flow Rate 250cfm to 300cfm per active
  lineal foot
• Pressure Drop 0.45 to 0.50 inches wg at
  duct connection
• Dimensions 20 x 20 Standard
• Weight 13 lbs

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Ventilated Ceiling Components
Perforated Supply Cassette

• Flow Rate 300cfm maximum
• Discharge velocity 180 220 fpm
• Pressure drop 0.15 in wg
• Dimensions 20 x 20
• Weight 13 lbs

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Ventilated Ceiling Components
Lighting Cassette

• Maximum input 110v/1ph
• Lamp type 4 x 18watt
• Rated frequency 60Hz
• Fluorescent or Incandescent

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Ventilated Ceiling Components
Extract Plenum Box

• Minimum height dimension 12
• One box per 1 to 4 exhaust cassettes
• Flexible collar location
• Exhaust air volume balancing dampers
• All welded construction to meet NFPA Standards
• Continuous liquid tight seams and joints
• Plenum must have minimum clearance for type of
  ceiling
• Combustible Ceiling 18 inches
• Limited Combustible Ceiling- 3 inches
• Non Combustible Ceiling Zero inches

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Ventilated Ceiling Components
Fire Protection

• Similar to Hood Systems
• Surface
• Plenum
• Duct Connection
• Meets UL300 standard

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Ventilated Ceiling Section Through-Clearance
SECTION THROUGH
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Ventilated Ceiling Technical Specifications

• All stainless steel construction, grade 304 4
  finish
• Intended for use with light and medium-duty
  cooking equipment only
• Modular cassette-type system designed
  specifically for commercial kitchens
• Choice of drop-in cassettes grease extractor,
  perforated supply, lighting and
• passive type
• Plenum boxes are liquid-tight, provided above
  all supply and extract cassettes and
• connected into the supply and extract ductwork
  running horizontally in the ceiling void.
• Mounting height between 90 and 138 above
  finished floor level
• Minimum ceiling void required to accommodate the
  plenum boxes, ductwork, etc
• is 12.
• The support grid comprises of a series of
  primary mullions an perimeter channels
• to support the system
• Intermediate hanger brackets , located on the
  primary mullions, is supplied to
• support ceiling weight