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Capture Jet™ Hood with Side-Jet Technology - Halton

Capture Jet™ Hood with Side-Jet Technology - Halton

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Suggested specifications<br />

The kitchen hood shall be constructed from 1.0-mm<br />

AISI 304 stainless steel.<br />

The kitchen hood shall be supplied complete <strong>with</strong><br />

<strong>Capture</strong> <strong>Jet</strong> technology, high-efficiency multi-cyclone<br />

grease filters, pressure measurement taps, exhaust air<br />

spigots <strong>with</strong> adjustment dampers, and a fluorescent<br />

light fitting <strong>with</strong> installation hatch.<br />

The size shall be as indicated in the drawings.<br />

Outer casing<br />

• Outer casing panels are constructed from AISI 304<br />

stainless steel in a brushed satin finish in a modular<br />

construction. The joints of the lower edge shall be<br />

fully welded to be liquid-tight, avoiding harmful<br />

dripping of condensation. All exposed welds are<br />

ground and polished to the original finish of the<br />

metal.<br />

• The bottom edge of the exhaust plenum should be<br />

aerodynamically designed (no flat surface or<br />

bounce).<br />

• Canopy ends shall be of double-sidewall construction<br />

(no single wall permitted).<br />

Exhaust<br />

• The exhaust air flow will be based on the convective<br />

heat generated by the appliances underneath each<br />

canopy. Submittal shall include convective heat<br />

calculations based on the input power of the<br />

appliance served.<br />

• The hood’s mounting height shall be in accordance<br />

<strong>with</strong> the drawings supplied, as a moderate increase<br />

in exhaust rate is required if the hood is installed<br />

higher than designed.<br />

KVI - <strong>Capture</strong> <strong>Jet</strong> <strong>Hood</strong> <strong>with</strong> <strong>Side</strong>-<strong>Jet</strong> <strong>Technology</strong><br />

10<br />

<strong>Capture</strong> <strong>Jet</strong> <strong>with</strong> side-jet technology<br />

• The hood shall be designed <strong>with</strong> <strong>Capture</strong> <strong>Jet</strong><br />

technology and <strong>Side</strong>-<strong>Jet</strong> technology to reduce the<br />

exhaust air flow rate required and to improve the<br />

capture and containment efficiency of the hood not<br />

only at the front but also on the sides of the canopy,<br />

while reducing energy consumption. The <strong>Capture</strong><br />

<strong>Jet</strong> air shall be introduced through a special<br />

discharge panel and shall not exceed 10% of the<br />

calculated exhaust air flow. The <strong>Capture</strong> <strong>Jet</strong><br />

discharge velocity shall be, at minimum, 8 m/s. Slotor<br />

grille-type discharge shall not be used. The<br />

<strong>Capture</strong> <strong>Jet</strong> chamber is to be insulated.<br />

• The hood shall be supplied <strong>with</strong> a <strong>Capture</strong> <strong>Jet</strong> fan<br />

to provide the required air flow at the indicated<br />

static pressure. The fan is to be provided by the<br />

hood manufacturer, so an additional supply air<br />

system is not required for the <strong>Capture</strong> <strong>Jet</strong> system.<br />

Grease filters<br />

• The hood shall be equipped <strong>with</strong> a KSA-model multicyclone<br />

stainless steel grease extractor. The grease<br />

extraction efficiency is 93% for particles <strong>with</strong> a<br />

diameter of 5 microns and 98% for those <strong>with</strong> a<br />

diameter of 15 microns or larger, as tested by an<br />

independent testing laboratory. The pressure loss<br />

over the extractor shall not exceed 120 Pa at the<br />

flow rates calculated. Sound levels shall not exceed<br />

an LpA rating of 50 dB(A). The filter shall be NSFand<br />

UL-classified. Baffle- or slot-type grease<br />

extractors shall not be used.<br />

TAB ports and air flow balancing<br />

• The air flows through the KSA separator and the<br />

<strong>Capture</strong> <strong>Jet</strong> air chamber are to be determined via<br />

the integral TAB ports mounted in the hood. The air<br />

flows are to be determined by the pressure vs. air<br />

flow curves supplied by <strong>Halton</strong>.<br />

• The replacement air shall be delivered <strong>with</strong> a supply<br />

control damper of type MSM.<br />

• The spigot connections for supply and extracted air<br />

shall be supplied <strong>with</strong> a sealing gasket and air-flowbalancing<br />

damper plate.<br />

20/KVI/0000/0408/EN

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