Larkin PBRC-20-20-SW Installation Manual

February 15, 2010

SPECIFICATION

Air Scrubbers, Inc Model Series K-Pack

Kitchen Exhaust Pollution Control System

Project: Good Food Restaurant, Project JXXXX-10-0801-K

A. General
Furnish a kitchen exhaust air pollution control system in a progressive efficiency, 3-stage
mechanical filter arrangement, 4th stage odor control section, blower and controls as described
below and shown on the submittal drawings.

B. Equipment Description
The system shall be furnished as a single, factory assembled unit, consisting of: pleated pre­filter, bag filter, final filter, odor control section, outlet transition and blower/motor, all mounted
on a 4” x 5.4 lb/ft structural steel support base. The base shall have lifting lugs at the 4 corners
and along the length as needed. The unit shall be furnished in a side access housing fabricated
from 14-gage steel, continuous welded pretreated and powder coated with thermo-set powder
paint, inside and outside. Side access doors shall be provided to service all internal
components. The access doors shall be on lift-off hinges, full perimeter high temperature
gasketed and use multi-point closure latches. The system shall be ETL listed to UL 710
Exhaust Hoods for Commercial Cooking Equipment

and shall conform to NFPA 96 Standard for

Ventilation Control and Fire Protection of Commercial Cooking Operations.

1. The multi-stage filter section shall conform to the following:
a. Pleated prefilters, 4” deep, 30% per ASHRAE 52.1 and MERV 8 per ASHRAE 52.2
b. 10 bag filter, 22” deep, 95% per ASHRAE 52.1 and MERV 14 per ASHRAE 52.2
c. Final filter, 12” deep, 95% ASHRAE 52.1 and MERV 16 per ASHRAE 52.2
d. Filters held in place with extruded aluminum tracks with replaceable bulb seal gasket.
e. Filter frames shall be metal or die cut. Plastic frames are not acceptable.
f. Filters shall be sealed with a gasketed pressure plate to prevent air bypass.

2. The odor control section shall contain the following:
a. Bonded Activated Carbon, furnished in a self-supporting, bonded granular briquette
panel with galvanized steel perimeter frame and covered on both sides with spun
bonded scrim. Carbon is composed of virgin coconut shell granular activated carbon
with a minimum carbon tetrachloride activity of 60% per ASTM D-3467, is 4 x 8 US mesh
size, and impregnated with active ingredients to enhance cooking odor molecule
adsorption. Bonded carbon shall have a minimum bulk

densityof 30 lbs/ft3 , and applied at the rate of 100 lbs. minimum/1,000 cfm for a
minimum residence time of 0.15 seconds. Carbon panels shall be held in place with
extruded aluminum tracks with replaceable bulb seal gasketing.

3. Outlet transition shall be factory installed, connecting the housing to the blower,

fabricated from 14 gage and finished to match the housing. Transition to blower
connection shall be made with high temperature flex fabric.

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4. Blower/motor assembly shall be the centrifugal, SWSI type, belt

drive with backward inclined wheel and shall be UL 762 listed for Power Ventilators in
Restaurant Service.

A factory mounted ON-OFF disconnect switch shall be furnished
and pre-wired to the blower motor. The blower assembly shall be isolated using housed,
spring isolators. The blower motor and drives shall be located outside of the
air stream as required by NFPA 96. Blower performance and electric service shall be as
shown in Paragraph 7.

5. The entire assembly shall be factory mounted on 4-inch x 5.4 lbs/ft. structural steel,
C-channel base frame.

6. The fire system shall be Amerex or Ansul or other AHJ approved system as specified.
The system shall be factory pre-piped as per the manufacturers’ instructions.
Field connection, tanks, controls and commissioning shall be by others, on site.
The AHJ may require additional protection in order to comply with local codes.

Static P. w.g.

7. Unit #

Air Volume Total External Diameter Electrical HP Weight Lbs K-Pack Model

Blower

1 6,000 3.0” 1.0 18” 460/60/3 7 ½ 2,600 PBRC-20-20-SW

-end-

Form: Jan. 2, 2010