COOK Laboratory Exhaust - Manual

TCNHBLE
®
Vari-Plume
®
and Laboratory Exhaust Products
SUPPLEMENTAL INSTALLATION AND MAINTENANCE MANUAL
Laboratory Exhaust
Installation
The unit should be installed on a curb/base that is securely
attached to the roof structure per contract documents and local
codes. If the curb is provided by Loren Cook, the curb should be
attached per the provided submittal document by welding to the
roof structure.
For curb mounted assemblies, the unit should be securely
fastened to the curb using minimum ¼” x ¾” sheet metal screws
using pre-punched holes in the curb cap. If pre-punched holes
are not provided, use a minimum of 2 screws per side and a
maximum of 12” spacing.
Drain Connections
Loren Cook lab exhaust fans all have drains as standard
construction features. These drains should be properly
connected to a drainage system to ensure that the run off from
the units is disposed of properly.
The connection should include a
trap system (Figure 5) that is sized
adequately to not allow for air
leakage under the system pressure.
Dimension A and B should be
double the total static pressure for
the unit.
The attachment of roof mounted fans to the roof
curb as well as the attachment of roof curbs to the
building structure must exceed the structural
requirements based on the environmental loading
derived from the applicable building code for the
site. The local code official may require variations
from the recognized code based on local data. The
licensed engineer of record will be responsible for
prescribing the correct attachment based on
construction materials, code requirements and
environmental effects specific to the installation.
Failure to follow these instructions could result in
death or serious injury.
QMXVP
CPSLE
This publication contains supplemental installation and
maintenance instructions for Vari-Plume ® and Laboratory Exhaust
units:
• CPSLE • QMXLE • TCNHBLE
• CAVP • QMXVP
Carefully read this publication and any
supplemental documents prior to any
installation or maintenance procedure.
Loren Cook Company’s Laboratory Exhaust catalog / brochure,
as well as the documents related to each unit (such as CPS),
provide additional information describing the equipment, fan
performance, available accessories, and specification data.
For additional safety information, refer to AMCA Publication
410-96, Safety Practices for Users and Installers of Industrial and
Commercial Fans.
Handling and Lifting
Always lift fan by lifting lugs. NOTICE! Never lift unit by shaft,
motor, housing, or nozzle.
The units may be shipped in sections and each section should
be lifted into place using the provided lifting lugs. If the unit is to be
lifted assembled, lift the unit with lifting lugs attached to the fan
housing using a spreader bar as required to ensure no damage is
incurred on the nozzle assembly.
All Vari-Plume
®
and Laboratory Exhaust units are designed to
be self-supporting, without the use of guy wire, when installed
according to the instructions within this document. The roof curb
must be securely installed prior to fan installation according to the
curb manufacturer’s recommendations.
Unit Assembly
If unit is shipped in sections, assemble unit starting at the
lowest level moving up the assembly. Each section should have a
pre-installed gasket that must be present to ensure proper sealing
of unit. If the gasket is damaged or missing, caulk may be used to
seal the sections by applying between the bolted sections. Once
the gasket/caulk has been verified, assemble the sections and
bolt together with the provided hardware.
Rotating Parts & Electrical Shock Hazard:
Disconnect electric power before working on unit.
Follow proper lockout / tagout procedures to ensure
the unit cannot be energized while being installed or
serviced.
A disconnect switch should be placed near the fan in
order that the power can be swiftly cut off, in case of
an emergency and in order that maintenance
personnel are provided complete control of the
power source.
Grounding is required. All field-installed wiring must
be completed by qualified personnel. All field-
installed wiring must comply with National Electric
Code (NFPA 70) and all applicable local codes.
Failure to follow these instructions could result in
death or serious injury.
CAVP
QMXLE