Commercial Kitchen Ventilation Products
710 S. Powerline Road, Deerfield Beach, FL 33442 • 954 570-4083 • 800 322-8730 • www.hooddepot.net
(INSTALLATION Cont’d.)
Performance of the air purification unit is highly affected by ductwork configuration,
proper alignment and seals. The following airflow factors must be accounted for:
1. Any change in duct direction must be at least five duct diameters away from the
unit inlet. The maximum velocity at the inlet of the unit must be less than 1,000 feet
per minute.
2. The air purification unit requires commercial (NFPA 96) or Listed grease duct
-
work. Clearance ratings of any ductwork connected to the unit apply to the unit as
well and must be installed in accordance with IMC, NFPA 96 and state and local
codes.
3. All grease ducts before or after the KAP must be designed and installed as per
NFPA 96, local mechanical/building codes, SMACNA and any/all state and local
codes.
DUCTWORK
Each section of the unit contains a drain that should be connected to an approved
grease interceptor or to an approved drainage point to allow water to drain away
from the unit. If installed outdoors, the drains must be piped in such a way to avoid
water build-up in pipes that could burst in freezing conditions. It is recommended
that units located where freezing may occur have electric heat tape.
GREASE/WATER DRAINS
Drain line must be pitched for proper drainage
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