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Series L: Models LB, LBP, LD, and LDP
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting
to assemble, install, operate or maintain the product described. Protect yourself and others by
observing all safety information. Failure to comply with instructions could result in personal injury
and/or property damage!
PN 453283
Series L: Models LB, LBP, LD, and LDP
Low Silhouette Centrifugal Roof Exhaust Fans
Only qualified personnel should install this fan.
Personnel should have a clear understanding of
these instructions and should be aware of general
safety precautions. Improper installation can result
in electric shock, possible injury due to coming in
contact with moving parts, as well as other potential
hazards. Other considerations may be required
if high winds or seismic activity are present. If
more information is needed, contact a licensed
professional engineer before moving forward.
1. Follow all local electrical and safety codes, as
well as the National Electrical Code (NEC) and
the National Fire Protection Agency (NFPA),
where applicable. Follow the Canadian Electric
Code (CEC) in Canada.
2. The rotation of the wheel is critical. It must be
free to rotate without striking or rubbing any
stationary objects.
3. Motor must be securely and adequately
grounded.
4. Do not spin fan wheel faster than max cataloged
fan RPM. Adjustments to fan speed significantly
effects motor load. If the fan RPM is changed,
the motor current should be checked to make
sure it is not exceeding the motor nameplate
amps.
5. Do not allow the power cable to kink or come
in contact with oil, grease, hot surfaces,
or chemicals. Replace cord immediately if
damaged.
6. Verify that the power source is compatible with
the equipment.
7. Never open access doors to a duct while the fan
is running.
DANGER
Always disconnect, lock and tag power source before
installing or servicing. Failure to disconnect power source
can result in fire, shock or serious injury.
CAUTION
When servicing the fan, motor may be hot enough to
cause pain or injury. Allow motor to cool before servicing.
CAUTION
Precaution should be taken in explosive atmospheres.
Series L Exhaust Fans
Greenheck’s Series L, low silhouette, models LD, LB,
LDP, and LBP centrifugal roof exhaust fans provide the
industry’s best performance and durability for general clean
air applications. Series L exhaust fans have the broadest
performance in the industry, up to 1.25 in. wg
(311 Pa)
and
37,500 cfm
(63,713 m
3
/hr)
.
The severe duty models LDP and LBP are far superior to
any centrifugal roof exhaust fan currently in the market.
Specifically designed for applications with extremely high
structural design load requirements. Designed with structural
steel supports and ESD-603D louver blades, the severe duty louver enclosure (SDLE) may be used in any
application which requires a fan to endure high winds with the potential of wind blown debris. Miami-Dade
notice of acceptance number 03-0422.05.
General Safety Information
