1
PROPELLER UPBLAST IO&M
B51071-005
Receiving and Inspection
Carefully inspect the fan and accessories for any damage
and shortage immediately upon receipt of the fan.
• Turn the propeller by hand to ensure it turns freely and does
not bind
• Check dampers (if included) for free operation of all moving
parts
• Record on the
Delivery Receipt
any visible sign of damage
TUB
Rotating Parts & Electrical Shock Hazard:
Fans should be installed and serviced by qualified personnel
only.
Disconnect electric power before working on unit (prior to re-
moval of guards or entry into access doors).
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 com
-
pleted by qualified personnel. All field installed wiring must
comply with National Electric Code (NFPA 70) and all applica-
ble local codes.
Fans and blowers create pressure at the discharge and vac-
uum at the inlet. This may cause objects to get pulled into the
unit and objects to be propelled rapidly from the discharge.
The discharge should always be directed in a safe direction
and inlets should not be left unguarded. Any object pulled into
the inlet will become a projectile capable of causing serious in-
jury or death.
When air is allowed to move through a non-powered fan,
the impeller can rotate, which is referred to as windmilling.
Windmilling will cause hazardous conditions due to unexpect-
ed rotation of components. Impellers should be blocked in po-
sition or air passages blocked to prevent draft when working
on fans.
Friction and power loss inside rotating components will cause
them to be a potential burn hazard. All components should be
approached with caution and/or allowed to cool before con-
tacting them for maintenance.
Under certain lighting conditions, rotating components may
appear stationary. Components should be verified to be sta
-
tionary in a safe manner, before they come into contact with
personnel, tools or clothing.
Failure to follow these instructions could result in death or se-
rious injury.
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 environmen-
tal loading derived from the applicable building code for the
site. The local code official may require variations from the rec
-
ognized code based on local data. The licensed engineer of
record will be responsible for prescribing the correct attach-
ment based on construction materials, code requirements and
environmental effects specific to the installation.
®
PROPELLER UPBLAST
Upblast Propeller Roof Fans
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
This publication contains the installation, operation and
maintenance instructions for standard units of the
Upblast:
Upblast Propeller Roof Fans.
• LXUL & LXUM
• LTU
• LEU
• LXULMO &
LXUMMO
• LTUMO
• LEUMO
• TUB
• EUB
• AUB
• TUD
• EUD
• AUD
• SUB
• SUBH
• AI Upblast
Carefully read this publication and any
supplemental documents prior to any
installation or maintenance procedure.
Loren Cook catalogs,
Propeller Upblast
and
Propeller Roof
,
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
.
All of the publications listed above can be obtained from:
• lorencook.com
• 417-869-6474 ext. 166
For information and instructions on special equipment, con
-
tact Loren Cook Company at 417-869-6474.
