Unified Brands VENTILATION SYSTEMS specifications D. Grease Collection Receptacle

D. Grease Collection Receptacle

Should be emptied at least once a day, and cleaned daily with a strong detergent.

E. Hood Canopy

1.Inside hood canopy should be wiped down as needed. The area at the exhaust intake openings should be wiped down daily.

2.Inspect inside of extraction chamber at least monthly, to insure proper cleaning and that the trough is free of foreign matter.

F.Detergent System

1.Detergent tank should be checked at least weekly; and cleaned every six months. Always keep cover on tight to prevent spillage and evaporation.

2.A colloid type detergent, is recommended due to its non-caustic, non-toxic, biodegradable characteristics. It will not damage the rubber or synthetic parts of the pumping system. AVTEC recommends using EVAC Detergent. Available thru your local Service Agents or call Factory. See page 28 for more information.

3.All fittings should be checked for air tightness at least monthly.

4.Foot check valve should be cleaned every six months.

G.Fusible Link Replacement

1.Blade Type [Refer to fig. 27]

Exhaust damper fusible links are rated at 350°F [P/N AS LNK0302] and Air Make- up damper fusible links are rated at 286°F [P/N AS LNK0303]. Fusible links shall be replaced at least annually per NFPA 96, 8-

2.1.2.New "S" hooks [P/N FA HOK0301] should be used whenever the fusible links are replaced.

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Cable tension can be adjusted by moving the eye-bolts in and out to ensure that the damper is fully open.

fig. 27

2.Curtain Type [Refer to fig. 28]

When make-up air is brought directly into the capture area a fire damper is required at the duct collar. The curtain damper is equipped with a 212°F fusible link [P/N AS LNK0006]. Fusible links shall be replaced at least annually per NFPA 96, 8-2.1.2. New “s” hooks [P/N FA HOK0301] should be installed whenever the fusible links are replaced. These links are replaced by unfolding the retaining strap and removing the clover hook and fusible link as a unit. Be careful to hold the curtain damper in place as a spring will try to pull it closed.

fig. 28