Greenheck GRSF Installation Manual

Document 479826

Model RSF and RSFP

®

Roof Supply Fan

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!

WARNING!

To reduce the risk of fire, electric shock, or injury,
observe the following:

• Some units suitable for use with solid state speed
controls.

• When cutting or drilling into wall or ceiling, do not
damage electrical wiring or other hidden utilities.

• If connecting cables are found to be cut or
defective, switch off the power supply and call
a professional technician to replace the wires/
connection.

• 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.

• Fan is not intended for mounting in outside
windows or walls.

CAUTION!

• For general ventilating use only. Do not use to
exhaust hazardous or explosive materials and
vapors.

127, 208 and 220-240V/60Hz/1-phase

• Black wire is “Hot”

• White wire is “Hot/Neutral” if present

• Green wire or Green and Yellow stripe wire is
“Ground” if present

380 and 400V/60Hz/3-phase

• Black wires are “Hot”

• Green and Yellow stripe wire is “Ground” if present

Use a device for disconnection from the
supply, having a contact separation of at least
3 mm in double poles switch, which must be
incorporated in the fixed wiring in accordance
with the local electrical wiring rules.

For this fan, precautions must be taken to
avoid the back-flow of gases into the room
from the open-flue of gas or other fuel­burning appliances.

This product must be properly and
reliably grounded.

Use this fan at the rated voltage and
frequency indicated on the name plate.

Do not allow water to contact electrical
parts such as motors or switches.

Do not switch this product on or off
in case of gas leakage; otherwise, the
electric spark may result in an explosion.

Do not spray or clean this product directly
with water or other liquid; otherwise, a short
circuit or an electrical shock may occur.

Do not disassemble the unit for
reconstruction.

Make sure that its power switch is set
to OFF before you touch this product;
otherwise, an eletrical shock may occur.

This fan must be installed by a qualified
technician.

This fan should be installed so that the
blades are more than 2.3 m above the
floor.

Routine maintenance is required every
year. Ensure that the fan is switched
off from the main supply power source
before removing the guard.

This appliance is not intended for the use
by persons (including children) with reduced
physical, sensory or mental capabilities,
or lack of experience and knowledge,
unless they have been given supervision or
instruction concerning use of the appliance
by a person responsible for their safety.
Children should be supervised to ensure
that they do not play with the appliance.

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Roof Supply Fan 1

Model RSF/RSFP

Model RSF/RSFP are belt drive supply fans. These
fans are specifically designed for filtered roof supply
applications. Performance capabilities range up to
14,300 cfm (24,296 m3/hr) and up to 2.0in.wg (498Pa)
of static pressure. RSF/RSFP fans are available in
six sizes ranging from a size 90 to a size 200. Each
fan shall bear a permanently affixed manufacturer’s
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 seismic
activity is 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.

DANGER

Pour écarter les risques d’incendie, de choc
électrique ou de blessure grave, veiller à toujours
débrancher, verrouiller et étiqueter la source de
courant avant l’installation ou l’entretien.

ATTENTION

Lors de toute intervention sur la soufflante, le moteur
peut être suffisamment chaud pour provoquer une
douleur voire une blessure. Laisser le moteur refroidir
avant toute maintenance.

ATTENTION

Faire preuve de précaution dans les atmosphères
explosives.

Roof Supply Fan2

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Receiving

Upon receiving the product, check to ensure all
items are accounted for by referencing the delivery
receipt or packing list. Inspect each crate or carton
for shipping damage before accepting delivery. Alert
the carrier of any damage detected. The customer will
make notification of damage (or shortage of items)
on the delivery receipt and all copies of the bill of
lading which is countersigned by the delivering carrier.
If damaged, immediately contact your Greenheck
Representative. Any physical damage to the unit after
acceptance is not the responsibility of Greenheck Fan
Corporation.

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.

Handling

Fans are to be rigged and moved by the lifting
brackets provided or by the skid when a forklift is
used. Location of brackets varies by model and size.
Handle in such a manner as to keep from scratching
or chipping the finish. Damaged finish may reduce the
ability of the fan to resist corrosion.

Fans should never be lifted by the shaft, fan housing,
motor, belt guard, windband or accessories.

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 & 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 in motor and
bearings. 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 lint­free 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.

®

Roof Supply Fan 3

Table of Contents

General Safety Information . . . . . . . . . . . . .2

Receiving, Unpacking, Handling, Storage . . . . . .3

Inspection and Maintenance During Storage . . . .3

Dimensional Data . . . . . . . . . . . . . . . . . .4

Lifting. . . . . . . . . . . . . . . . . . . . . . . . .5

Installation . . . . . . . . . . . . . . . . . . . . . .5

Mounting for Severe Duty Installation . . . . . . . .6

Dimensional Data

RSF

B SQ.

C

D

21/2 in.

SQ.

A

Electrical Connection . . . . . . . . . . . . . . . .7

Pre-Starting Checks . . . . . . . . . . . . . . . . .7

Routine Maintenance . . . . . . . . . . . . . . . .8

Parts List . . . . . . . . . . . . . . . . . . . . . . .9

Maintenance Log. . . . . . . . . . . . . . . . . . 10

Our Commitment. . . . . . . . . . . . . . . . . . 10

Base of Unit

J

F

J

G

A

H

RSFP

BL SQ.

CL

D

21/2 in.

A

SQ.

Fan

SizeA SQ.B SQ.

26 351⁄8 317⁄8 231⁄4 253⁄8 101⁄4 121⁄4 103⁄4 75⁄8 67⁄8 241⁄2 121⁄4 61⁄8 (4) 12x20

90

(660) (892) (810) (591) (645) (260) (311) (273) (194) (175) (662) (311) (156) (305x508) (66) (57)

30 411⁄8 357⁄8 231⁄4 253⁄8 101⁄4 135⁄8 117⁄8 91⁄16 83⁄16 281⁄2 141⁄4 71⁄8 (4) 12x25

100

(762) (1045) (911) (591) (645) (260) (346) (302) (230) (208) (724) (362) (181) (305x635) (78.5) (66)

34 471⁄8 397⁄8 271⁄4 293⁄8 101⁄4 161⁄8 137⁄8 101⁄16 815⁄16 321⁄2 181⁄4 71⁄8 (4) 16x25

120

(864) (1197) (1013) (692) (746) (260) (410) (352) (256) (227) (826) (464) (181) (406x635) (102) (82)

40 531⁄8 457⁄8 311⁄4 333⁄8 101⁄4 191⁄8 161⁄2 111⁄4 107⁄16 381⁄2 201⁄4 91⁄8 (8) 16x20

150

(1016) (1349) (1165) (794) (848) (260) (486) (419) (286) (265) (978) (514) (232) (406x508) (152) (113)

46 611⁄8 5 17⁄8 341⁄4 353⁄8 121⁄4 221⁄2 191⁄2 101⁄8 113⁄4 441⁄2 261⁄4 91⁄8

180

(1168) (1153) (1318) (870) (899) (311) (571) (495) (257) (298) (1130) (667) (232) (4) 20x20 (181) (129)

52 731⁄8 583⁄16 391⁄4 403⁄8 121⁄4 231⁄4 251⁄4 133⁄8 143⁄8 501⁄2 301⁄4 101⁄8 (8) 20x25

200

(1321) (1857) (1478) (997) (1026) (311) (591) (641) (340) (365) (1283) (768) (257) (508x635) (281) (196)

BL

CCLDFGHJ

SQ.

All dimensions are in inches (millimeters). Pounds (kg).

Optional Duct Adapter

K

SQ.L SQ.

M

M

Nominal

Filter

(4) 16x20

(406x508)

(508x508)

M

L

SQ.KSQ.

M

Louver

Tiers
RSFP

3

3

4

5

5

6

Weights

RSF RSFP

145 126

173 146

225 180

336 250

400 285

620 431

Roof Supply Fan4

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Lifting

Installation

Lifting the RSF and

Figure 1

RSFP fans must be
done with care to
avoid damaging the
housing. For model
RSF, attach four
lifting devices under
the outer housing,

Lift Here

Lift Here

each device beneath
the vertical row of fasteners as depicted in Figure 1.

Lifting devices should be a minimum of 3 inches wide
to avoid damaging the sheet metal housing.

Do not lift Model RSF near the center of the outer
housing.

For Model RSFP attach a minimum of four lifting
devices under an exterior louver panel, each device
near the corner of the louvered housing.

Move the fan to its intended location and fasten it
securely through mounting holes provided in the
fan base. Shims may be necessary depending
upon thickness of the roofing material. For ducted
applications, an optional duct adapter (if provided)
is attached and holds the ductwork in place prior to
installing the unit. The following diagram shows a
typical installation with prefab roof curb and ductwork.

Access to the motor compartment is made by
releasing four latches which secure the cover. The
cover should be placed in an area where wind will not
blow it off the roof.

Typical Installation

Prepunched mounting
holes and 21⁄2 in. skirt
to aid in installation.

Ductwork (by others)

Duct adapter (optional)
allows ductwork to
be completed prior to
setting unit on curb.

Roof curb

Fan Size Curb Size*

RSF/RSFP-90 24

RSF/RSFP-100 28

RSF/RSFP-120 32

RSF/RSFP-150 38

RSF/RSFP-180 44

RSF/RSFP-200 50

All dimensions are in inches (millimeters).

* Recommended curb size shown is outside curb dimension without roofing

and flashing.

Note: In cases where extreme snow depths may be encountered, extended
base may be required to raise unit or condensation pans may be required in
ductwork.

1

1

1

1

1

⁄2 (1130) 29 (737) 26 (660) 26 x 26 (737x737)

1

⁄2 (1283) 33 (838) 30 (762) 30 x 30 (838x838)

Recommended

Roof Opening

⁄2 (662) 15 (381) 12 (305) 12 x 12 (305x305)

⁄2 (724) 17 (432) 14 (356) 14 x 14 (356x356)

⁄2 (826) 21 (533) 18 (457) 18 x 18 (457x457)

⁄2 (978) 23 (584) 20 (508) 20 x 20 (508x508)

Duct Size ID Nominal Damper Size

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Roof Supply Fan 5

Mounting for Severe Duty Installations

IMPORTANT

Installation instructions for seismic ratings are only recommendations. Final design must be determined by
Structural Engineer of Record (SEOR) including requirements for curb construction, mounting of unit to curb
and mounting of curb to structure.

Fan to Curb: Three (3) fasteners are required
per side on all sides. Must be equally spaced.

RSF Series

1.25

1.25

Curb Corner
Anchor Detail

Roof Curb
Model SD, SDP, GPF or Equivalent
18 ga. Min.
24 in. (610 mm) Tall Max.
Welded Steel Construction

Curb to Deck: Fasteners need to be located on two
opposite ends of the curb.

Roof Curb Roof Curb

3/8 in. (10 mm) S.S. Hilti Kwik Bolt
Three Expansion Anchors
Min. 2-1/2 in. (64 mm) Engagement

2000 Min. PSI
Concrete

Concrete

Deck Anchoring

Roof Curb

Wood Timber
Min. 4 in. (102 mm)
Nominal Thickness
Min. G = 0.42

G = specific gravity
of lumber

Deck Anchoring

Timber Anchoring

1/4 in. - 14 Self-Drilling Screw
Min. 1/2 in. (13 mm) of Threads Through

Steel

3/8 in. (10 mm) Lag Bolt (Zinc Plated)
Min. 3 in. (76 mm) Thread Engagement

High Wind Ratings Seismic Ratings

Roof Truss
1/8 in. (3 mm) Thick
or 12 ga. Min.

Fan Size Curb Cap Size

Concrete

Steel

Timber

90, 100, 120

150

180, 200

90, 100, 120

150

180, 200

90, 100, 120

150

180, 200

(660x660 to 864x864 mm)

(1168x1168 to 1321x1321

(660x660 to 864x864 mm)

(1168x1168 to 1321x1321

(660x660 to 864x864 mm)

(1168x1168 to 1321x1321

All dimensions are in inches

26x26 to 34x34

40x40

(1016x1016 mm)

46x46 to 52x52

mm)

26x26 to 34x34

40x40

(1016x1016 mm)

46x46 to 52x52

mm)

26x26 to 34x34

40x40

(1016x1016 mm)

46x46 to 52x52

mm)

(millimeters)

.

Self-Drilling

Screw Size

3/8-inch

1/4” - 14

3/8-inch

Fasteners

Per Side

Total

Fasteners

Fan Size

Fasteners

per side

3 6 90, 100, 120 3 6

4 8 150 4 8

5 10 180, 200 5 10

3 6 90, 100, 200 3 6

4 8 150 4 8

5 10 180, 200 5 10

3 6 90, 100, 120 3 6

4 8 150 4 8

5 10 180, 200 5 10

Total

Fasteners

Roof Supply Fan6

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