Greenheck SP-B50 Installation Manual
PN 474680
Model SP
®
Model CSP
Ceiling Exhaust and Inline Fans
Installation, Operation and Maintenance Manual
Please read and save these instructions. 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! Retain instructions for future reference.
Model SP
Model SP is a direct drive ceiling exhaust fan designed
for clean air applications where low sound levels are
required. Many options and accessories are available
such as lights, motion detectors, ceiling radiation
dampers and speed controls. Capacities range from 25
to 1,600 cfm (42 to 2,718 m
AMCA Licensed for Sound and Air Performance.
ENERGY STAR® Certified models include:
SP-A, 50, 70, 90, 200, 250, 290 and 410;
SP-B, 50, 70, 80 and 90.
3
/hr) and 1 in. wg (248 Pa).
Model CSP
Model CSP is a direct drive inline exhaust fan designed
for clean air applications where low sound levels are
required. Capacities range from 70 to 3,800 cfm (119 to
6,456 m3/hr) and 1 in. wg (248 Pa). AMCA Licensed for
Air Performance.
WARNING!
To reduce the risk of fire, electric shock, or injury to
persons, observe the following:
• Suitable for use with solid state speed controls.
• Use this unit only in the manner intended by the manufacturer. If
you have questions, contact the manufacturer.
• Before servicing or cleaning unit, switch power off at service panel
and lock service disconnecting means to prevent power from
being switched on accidentally. When the service disconnecting
means cannot be locked, securely fasten a prominent warning
device, such as a tag, to the service panel.
• Installation work and electrical wiring must be done by qualified
person(s) in accordance with all applicable codes and standards,
including fire-rated construction.
• Sufficient air is needed for proper combustion and exhausting
of gases through the flue (chimney) of fuel burning equipment
to prevent back drafting. Follow the heating equipment
manufacturer’s guideline and safety standards such as those
published by the National Fire Protection Association (NFPA),
and the American Society for Heating, Refrigeration and Air
Conditioning Engineers (ASHRAE) and the local
code authorities.
• When cutting or drilling into wall or ceiling, do not damage
electrical wiring or other hidden utilities.
• Acceptable for use over a bathtub or shower when installed
in a GFCI protected branch circuit. (Up through size SP-A390)
• Never place a switch where it can be reached from a tub
or shower.
• Ducted fans must always be vented to the outdoors.
• These fans are not recommended for cooking exhaust
applications. They are designed primarily for low temperature,
clean air applications only. The diagram shows the minimum
distance these fans should be placed in relation to
cooking equipment.
• Fan/Light
insulated to a value greater than R40.
combination not to be installed in a
ceiling thermally
CAUTION!
• For general ventilating use only. Do not use to exhaust
hazardous or explosive materials and vapors.
®
Model SP/CSP Ceiling Exhaust and Inline Fans
1
Prepare the fan
Airflow
Airflow
Power Assembly
If power assembly (motor, wheel, and scroll) is not
installed in housing, insert the electrical plug into fan
socket, then slide scroll end of power assembly into
fan housing. Attach by using two sheet metal screws
provided.
B Model
A Model
Fan Rotation
To rotate from horizontal to vertical discharge
A-Models Only
Remove Wiring Knockout
Remove either top or side wiring knockout,
depending on wiring
direction, by
bending it back
E
lectrical
A
cce
P
ane
ss
l
and forth to
break tabs.
K
nockout
s
Ductwork
Check ductwork to see if the fan’s discharge requires
rotation from horizontal to vertical discharge.
Airflow
Airflow
A-50-500, 710, 780 Models
Remove the two screws holding the power assembly
in and pull power assembly out. Rotate power
assembly 180 degrees and put back into fan. Use
the same screws to reattach power assembly to fan
housing. Flip fan over and remove the four screws
holding the discharge duct and damper assembly.
Exchange the assembly with plate mounted on top of
fan, as shown in these illustrations.
A-700, 900-1500 Models
Remove the eight screws
holding the access panel or
collar as shown in picture.
Rotate the fan housing so
the discharge is facing up.
Replace access panel or
collar and screws.
Access
Panel
Access
Panel
Model SP/CSP Ceiling Exhaust and Inline Fans
2
®
Ceiling Radiation Damper (CRD)
SP-A Box Slot
Plastic SP-A
Duct Adapter Tabs
Insert plastic duct tab into SP-A box slots.
Plastic SP-A
Duct Adapter (PN 473322)
Sheet Metal Screw #10x3/8
Phillips Head (PN 415838)
SP-A Box
Sheet Metal Screw #10x3/8
Phillips Head (PN 415838)
SP-A Box
Plastic SP-A
Duct Adapter (PN 473322)
Screw Tabs
Sheet Metal Screw #10x3/8
Phillips Head (PN 415838)
Screw holes
If fan is to be used in a fire resistive membrane
ceiling, a ceiling radiation damper must be used.
If the ceiling radiation damper is already mounted to
the fan from the factory, proceed to Install the Fan.
To mount the ceiling radiation damper to fan, make sure
grille attachment tabs are facing down. Then place the inlet
part of the fan into the ceiling radiation damper collar, and
use self-tapping sheet metal screws (by others) to screw
through the damper collar and into the fan housing. If the
fan/light combination is being used, make sure ceiling
radiation damper has
an electrical plug in it.
The electrical plug must
be inserted into the fan.
Make sure the electrical
wire will not interfere with
damper operation as
shown in figure below.
Wires to ceiling fan
Attachment Tabs
A-50-510, 710, 780 Models
B-Models
Discharge Installation SP-A 50-90 Models
1 2
3
Install screws provided to secure discharge.
A-700, 900-1550 Models
Rotate plastic SP-A duct adapter (PN 473322)
until the screw tabs meets SP-A box.
Wires from lighted grille
Do not allow
interference
in this area
®
Model SP/CSP Ceiling Exhaust and Inline Fans
3
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