Greenheck CUE, CUBE User Manual
Document 471560
Upblast Centrifugal Roof Exhaust Fans
®
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!
Model CUE
Direct Drive
Model CUE is a direct drive upblast
centrifugal exhaust fan. These fans
are specifically designed for roof
mounted application. Performance
capabilities range up to 6,400
cfm (10,874 m
3 in. wg (747 Pa) of static pressure.
The maximum continuous operating
temperature for fan sizes 098-200 is
400°F (204°C) and for fan sizes 060095 is 160°F (71°C). CUE fans are
available in fourteen sizes with nominal wheel diameter
ranging from 9 to 20 inches (229to 508 mm) (060 - 200
unit sizes). Each fan shall bear a permanently affixed
manufacturers engraved metal nameplate containing the
model number and individual serial number.
General Safety Information
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.
Always disconnect, lock and tag power source before
installing or servicing. Failure to disconnect power
source can result in fire, shock or serious injury.
When servicing the fan, motor may be hot enough
to cause pain or injury. Allow motor to cool before
servicing.
Precaution should be taken in explosive atmospheres.
3
/hr) and up to
DANGER
CAUTION
CAUTION
Model CUBE
Belt Drive
Model CUBE is a belt drive upblast
centrifugal exhaust fan. These
fans are specifically designed
for roof mounted applications.
Performance capabilities range up
to 30,000 cfm (50,970 m
up to 5.0 in. wg (1240 Pa) of static
pressure. The maximum continuous
operating temperature is 400°F
(204°C). CUBE fans are available in
fourteen sizes with nominal wheel
diameter ranging from 9 to 48 inches (229 to 1219 mm)
(098 - 480 unit sizes). Each fan shall bear a permanently
affixed manufacturers engraved metal nameplate
containing the model number and individual serial
number.
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 Electrical 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 affects
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.
3
/hr) and
®
Upblast Centrifugal Roof Exhaust Fans
1
Receiving
Upon receiving the product, check the bill of lading
to ensure all items were received. Inspect each crate
for shipping damage before accepting delivery. All
damage should be noted on all the copies of the bill of
lading and a claim should be filed with the carrier. Any
physical damage to the unit after acceptance is not the
responsibility of Manufacturer.
Unpacking
Verify that all required parts and the correct quantity
of each item have been received. If any items are
missing, report shortages to your local representative to
arrange for obtaining missing parts. Sometimes it is not
possible that all items for the unit be shipped together
due to availability of transportation and truck space.
Confirmation of shipment(s) must be limited to only
items on the bill of lading.
Fig. 2
Hook With
Safety Latch
(Supplied by others)
(2) Bearing Plate
Lifting Points
(4) Drive Frame
Lifting Points
Handling
CUE Direct Drive
Lift unit on to the roof utilizing hooks under the
horizontal supports. Evenly space the hooks using a
minimum of four lifting straps. Use a spreader bar to
ensure the straps do not come in contact with the unit
(see figure 1).
Fig. 1
Spreader Bar
Lifting
Strap
Hook
CAUTION
Do not lift by the fan hood. Avoid lifting fans in a way
that will bend or distort fan parts. Never pass slings or
timbers through the venturi of fan. Fans with special
coatings or paints must be protected in handling to
prevent damage.
Fig. 3
Screw
Screw
CUBE Belt Drive
When lifting the unit onto the roof, use either the four
lifting points on the drive frame or the two lifting points
on the bearing plate if present (see figure 2 for lifting
points). Access to the drive frame is accomplished by
removing the screws pointed out in figure 3. The cover
can then be removed and placed on a flat surface in an
area protected from strong winds.
When CUE/CUBE unit is on the roof, move fan to
desired location using lifting points and fasten securely
through mounting holes in base. Shims may be
necessary depending upon roofing material thickness.
The motor amperage and voltage ratings must be
checked for compatibility to supply voltage prior to final
electrical connection. For CUE/CUBE installations, the
electrical supply should be routed through the conduit
chase located between the curb cap and the bottom of
the motor compartment or through the motor cooling
tube. Wiring must conform to local and national codes.
Upblast Centrifugal Roof Exhaust Fans
2
®
Storage
Fans are protected against damage during shipment. If
the unit cannot be installed and operated immediately,
precautions need to be taken to prevent deterioration of
the unit during storage. The user assumes responsibility
of the fan and accessories while in storage. The
manufacturer will not be responsible for damage during
storage. These suggestions are provided solely as a
convenience to the user.
Indoor
The ideal environment for the storage of fans and
accessories is indoors, above grade, in a low humidity
atmosphere which is sealed to prevent the entry of
blowing dust, rain or snow. Temperatures should be
evenly maintained between 30° to 110°F (-1° to 43°C)
(wide temperature swings may cause condensation
and “sweating” of metal parts). All accessories must
be stored indoors in a clean, dry atmosphere. Remove
any accumulations of dirt, water, ice or snow and
wipe dry before moving to indoor storage. To avoid
“sweating” of metal parts allow cold parts to reach room
temperature. To dry parts and packages, use a portable
electric heater to get rid of any moisture buildup. Leave
coverings loose to permit air circulation and to allow for
periodic inspection.
The unit should be stored at least 3½ in. (89 mm) off the
floor on wooden blocks covered with moisture proof
paper or polyethylene sheathing. Aisles between parts
and along all walls should be provided to permit air
circulation and space for inspection.
Outdoor
Fans designed for outdoor applications may be stored
outdoors, if absolutely necessary. Roads or aisles for
portable cranes and hauling equipment are needed.
The fan should be placed on a level surface to prevent
water from leaking into the fan. The fan should be
elevated on an adequate number of wooden blocks so
that it is above water and snow levels and has enough
blocking to prevent it from settling into soft ground.
Locate parts far enough apart to permit air circulation,
sunlight and space for periodic inspection. To minimize
water accumulation, place all fan parts on blocking
supports so that rain water will run off.
Do not cover parts with plastic film or tarps as these
cause condensation of moisture from the air passing
through heating and cooling cycles.
Fan wheels should be blocked to prevent spinning
caused by strong winds.
Inspection and Maintenance
During Storage
While in storage, inspect fans once per month. Keep a
record of inspection and maintenance performed.
If moisture or dirt accumulations are found on parts,
the source should be located and eliminated. At each
inspection, rotate the wheel by hand ten to fifteen
revolutions to distribute lubricant on motor. If paint
deterioration begins, consideration should be given to
touch-up or repainting. Fans with special coatings may
require special techniques for touch-up or repair.
Machined parts coated with rust preventive should be
restored to good condition promptly if signs of rust
occur. Immediately remove the original rust preventive
coating with petroleum solvent and clean with lint-free
cloths. Polish any remaining rust from surface with
crocus cloth or fine emery paper and oil. Do not destroy
the continuity of the surfaces. Thoroughly wipe clean
with Tectyl
®
506 (Ashland Inc.) or the equivalent. For
hard to reach internal surfaces or for occasional use,
consider using Tectyl
®
511M Rust Preventive, WD-40®
or the equivalent.
Removing From Storage
As fans are removed from storage to be installed in
their final location, they should be protected and
maintained in a similar fashion until the fan equipment
goes into operation.
WARNING
Installation, troubleshooting and parts replacement is
to be performed only by qualified personnel. Consult
and follow all applicable national, state and local
codes. They will supercede this document.
WARNING
Disconnect power before installing or servicing.
®
Upblast Centrifugal Roof Exhaust Fans
3
Installation
Caulk
d
Typical Roof Mounting Installation
1. On the roof surface, cut an appropriate sized hole
and follow manufacturer’s instructions on curb
installation. Caulk and
flash the curb to
ensure a water
an
b to
ter
tight seal.
Roof Curb
Installation
2. If unit is equipped with a backdraft damper, it
should be installed now.
3. Remove motor cover. Access to the motor
compartment is accomplished by removing the
screws as shown in figure 3.
4. For CUBE Belt Drive fans only. On the drive frame
use the lifting lugs to lift and place the unit on top of
roof curb. (Refer to figure 2 on page 2).
5. Secure fan to curb using a minimum of eight lag
screws, metal screws or other suitable fasteners.
Shims may be required depending upon curb
installation and roofing material.
6. Verify power line wiring is de-energized before
connecting fan motor to power source.
7. Connect power supply wiring to the motor as
indicated on the motor nameplate or terminal box
cover. Check the power source for compatibility
with the requirements of your equipment.
8. Check fan wheel for free rotation, re-center if
necessary.
9. Check all fasteners for tightness.
10. Mount and wire safety disconnect switch under
motor cover. Wire control switches at ground level,
refer to figure 4.
Typical Wiring Diagram
Fig. 4
MOTOR
J-BOX
SUPPLY VOLTAGE
115/208-230/60/1
L1
L2
MOTOR
J-BOX
SUPPLY VOLTAGE
208-230/460/60/3
L1
L2
L3
11. Replace motor cover.
12. For restaurant and UL Listed for smoke evacuation
applications, the electrical supply must enter the
motor compartment through the breather tube.
For other non-flammable applications the electrical
supply can be routed through the conduit chase
between the curb cap and the bottom of the motor
compartment.
IMPORTANT
ELECTRICAL - If fan motor is NOT thermally protected,
remote overload protection must be installed having
adequate rating as to voltage, frequency, horsepower, and
full load current per phase. Where connected to a circuit
protected by fuses, use time delay fuses. For supply
connection use wires rated for at least 194˚F (90˚C).
Power
Ventilator
565L
INSTALLATION - When connecting electrical power to this
fan, do not restrict motor movement for possible future belt
or wheel adjustment.
CAUTION - Mount with the lowest moving part at least
8ft (2.5m) above floor or grade level. Not required on roof
mounted ventilators or duct mounted ventilators provided
with belt guards.
CUE - Direct Drive
Model
CUE 060, 065, 070, 075
CUE 080, 085, 090
CUE 095
CUE 098, 099, 101, 121, 131
CUE 141, 161
CUE 180-200
Curb
17 (432) 8 (203)
19 (483) 10 (254)
19 (483) 10 (254)
19 (483) 12 (305)
22 (559) 16 (406)
30 (762) 18 (457)
Cap
Damper
Roof
Opening
101⁄2
(267)
121⁄2
(318)
121⁄2
(318)
141⁄2
(368)
181⁄2
(470)
201⁄2
(521)
*Approx.
Weight
26 (12)
33 (15)
36 (16)
67 (30)
85 (39)
142 (64)
CUBE - Belt Drive
Model
CUBE 098, 099, 101,
101HP, 121, 131
CUBE 141, 141HP,
161, 161HP, 161XP
CUBE 180
CUBE 180HP
CUBE 200
CUBE 200HP
CUBE 220, 220HP
CUBE 240, 240HP,
240XP
CUBE 300, 300HP,
300XP
CUBE 360, 360HP,
360XP
CUBE 420
CUBE 480
• All dimensions are in inches (millimeters). *Approximate weight shown in lbs. (kg.) is the
largest cataloged Open Drip Proof motor.
• The roof curb should be 1½ in. (38 mm) less than the curb cap to allow for roofing and
flashing.
Curb
Cap
(483)
(559)
(762)
(762)
(762)
(762)
(864)
(864)
(1016)
(1168)
(1321)
(1473)
Shaft
Bearings
19
1
⁄2 (19) 12 (305)
22
1
⁄2 (19) 16 (406)
30
3
⁄4 (19) 18 (457)
30
1 (25) 18 (457)
30
3
⁄4 (19) 18 (457)
30
1 (25) 18 (457)
34
1 (25) 24 (610)
34
1 (25) 24 (610)
40
1 (25) 30 (762)
46
11⁄4 (32) 36 (914)
52
1
⁄4 (32)
1
58
11⁄2 (38)
Damper
42
(1067)
48
(1219)
Roof
Opening
141⁄2
(368)
181⁄2
(470)
1
20
⁄2
(521)
201⁄2
(521)
201⁄2
(521)
201⁄2
(521)
261⁄2
(673)
261⁄2
(673)
321⁄2
(826)
381⁄2
(978)
1
44
⁄2
(1130)
501⁄2
(1283)
*Approx.
Weight
66 (30)
87 (39)
126 (57)
126 (57)
142 (64)
142 (64)
174 (79)
175 (79)
313
(142)
440
(200)
578
(262)
675
(306)
Upblast Centrifugal Roof Exhaust Fans
4
®
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