Larkin EO Installation Manual

Commercial Kitchen Hood

Installation and Maintenance Manual

Receiving Shipments

Upon receiving unit, check for any interior or exterior damage, if found, report it to the carrier

immediately. Check that all accessory items are accounted for and damage free.

Caution!

We strongly suggest hood Installation should only be performed by a qualified and licensed
mechanical contractor who is familiar with the level of involvement for proper installation. Insure
proper safety precautions are taken, permits are obtained, and code requirements are met.

Save these instructions. This document is the property of the owner of this equipment and is
required for future maintenance. Leave this document with owner after installation or service has
been completed.

2012

Table of Contents

Hood Installation..……………………………………………………………………….1
Basic Hanging Methods…………………...…….………..……………………………2
End-to-End Hoods….……………………………………………………………….…..3
Back-to-Back Hoods….……………………………………………………………….. 4
Grease Trough and Cup Installation………………………………………………….5
Back Return Plenum……………………………………………………………………6
Front Supply Plenum…………………………………………………………………...7
Splash Panels…………………………………………………………………………...8
Ceiling Enclosures………………………………………………………………………9
End Curtains……………………………………………………………………………..9
Duct Work………………………………………………………………………………10
Wiring……………………………………………………………………………………11
Maintenance……………………………………………………………………………12
Warranty………………………………………………………………………………..13
Trouble Shooting………………………………………………………………………14

Hood Installation Instructions

When uncrating, handling, or installing, the
installer should exercise extreme caution to
protect the stainless steel surfaces from
damage, as they are costly to repair.

The installing contractor for the Kitchen
Ventilation System is responsible for verifying
field measurements of the constructed kitchen
area. Consult project plans when determining
exact location of the hood(s). Determine how
the hood will be hung and prepare the
structural support system using inserts,
shields, angle iron, etc., and ½” threaded rod
with turn buckles (hanging material by others).
Verify that the materials used are sufficient to
support the weight of hood and hanging
system. (Refer to NFPA-96 for proper
installation methods and materials.)

All Larkin Industries, Inc. hoods are provided
with hanging brackets on top of hood, ½”
threaded rod should be used with necessary
nuts, washers, etc (see fig. 1). Turnbuckles
are recommended for leveling (see fig. 2).
Recommended mounting height from bottom
edge of hood to the finished floor is 6’-6”, (18”

-24” from bottom edge of filter to cooking
surface for Back Shelf type models). Hoods
should be hung level, and where possible, the
exhaust outlet should be in line with the
exhaust fan opening. Duct runs, offsets,
elbows, etc. should be simple and direct as
possible (see fig. 3).

When preliminary preparations have been
made, prepare the hood for lifting by providing
necessary manpower, forklift, crane, duct
jacks, etc. Be sure to provide adequate
safeguards to prevent damage to the hood,
property, and insure safety of personal (see
pg 3&4 for multiple section hoods). If a Back
Return (BR) plenum is provided with the
hood, this should be hung first at the standard
hanging height (see pg 6). When all hanging
material has been attached, lift the

hood in to position and secure to structural
framing, leveling the hood by using the
turnbuckles. Insure proper tension is placed
on each hanging rod for even weight
distribution. If the hood has a Front Perforated
Supply Plenum (FPSP), this should be
installed now (see pg 7). The grease trough
needs to be attached to the bottom of filter
rail, sloped toward the removable grease
container for proper drainage. Attach grease
container to the studs at the end of grease
trough. Install light bulbs in light fixtures (bulbs
by others). Use any well-recognized brand
with a maximum of 100 watts.

Install exhaust ductwork. Exhaust duct
systems must be continuously welded liquid
tight per NFPA-96 requirements. Install supply
ductwork (by others) per SMACNA guidelines.

Complete all electrical wiring based on
installation wiring diagram provided (by
certified electrician).

If hood is manufactured with factory pre-piped
fire suppression system, a certified fire system
distributor is responsible for final field hookup,
testing, and certification of the system. If the
hood is not provided with a fire suppression
system, a certified fire suppression distributor
must be contracted to install, test and certify a
fire suppression system (by others).

Protect hood at all times by wrapping it in
plastic or other suitable material, until all other
work is accomplished and system is ready to
be put into operation. Make sure to use
stainless steel polish to clean hood. To
prevent scratching do not use abrasives on
hood.

Warning! Do not penetrate the integrity of
the hood grease containment area when
hanging hood. Penetrating the grease
containment area will void warranty and
listing on the hood.

1

Commercial Kitchen Hood

Basic Hanging Methods

Figure 1
Simple hanging method that requires all

thread, two washers, and three ½” heavy
nuts.

Figure 2
Example of using ½” turn buckle
designed for easy adjustment of hood level.

Figure 3
An overview of using turn buckles
for hood installation. Methods of hood
Installations may vary depending on
local code requirements.

Note: Hanging material provided by
others.

2

Commercial Kitchen Hood

End-to-End Configuration

Align hoods and bolt together.

Apply silicone to seam between hood sections.
insert “T” strip and temporarily attach with tape.
After silicone has dried, remove tape.

Slide hem strip over raw ends of hood sections Note: Hanging material provided by others.
and pop rivet in place.

3