Unit installation

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Spring Air System Enviro Engineering Manual 01/032

The KES unit is installed to clean the exhaust air of grease and odor. The UL/ULC listing allows

the exhaust to be discharged at low levels.

In other words the exhaust ductwork may be discharged through side exterior walls below the

roof level. These exceptions to the standard NFPA-96 code are possible with a combination high

efficiency filtration system and a unique electrical and mechanical safety circuit.

The KES Enviro unit is available in sizes ranging from

1,000 to 40,000 CFM

(475 to 19,000 l/s), horizontal or vertical arrangement, (vertical units are available up to 8,000

CFM (3,800 l/s) indoor or outdoor design, and for use with dry hoods or water wash ventilators. A

few typical applications are shown in Figure No. 1.

PRINCIPLE OF OPERATION

The grease-laden air rises from the cooking equipment into the UL/ULC, commercial kitchen

exhaust hood. The exhaust hood will remove some of the airborne grease, lint and dirt

particulate. Typically most micron and submicron particle escape into the ductwork. The exhaust

air is then ducted directly to the inlet of the KES Enviro Filter Unit. This exhaust duct from the

commercial kitchen exhaust hood to the inlet of the KES Enviro must be installed in strict

accordance with the NFPA-96 code.

KES-ISH Plan View of Filter Box Schematic

Figure 2

EXHAUST

OUTLET

EXHAUST

INLET

PRESSURE SWITCHES

CHANNEL BASE

LV10 CONTROLLER

12" BOX FILTERS

2" PREFILTERS

21" BAG FILTERS

16 GA. ALL WELDED INTERIOR

FUSIBLE LINK FIRE DAMPER

1.5" TWO WALL INSULATED PANELS