Greenheck RSF, RSFP User Manual
Model RSF
Model RSFP
READ AND SAVE THESE INSTRUCTIONS
Roof Supply Fans
Models RSF and RSFP
PN 453148
Installation, Operation and Maintenance Manual
Greenheck Model RSF and RSFP fans are thoroughly inspected and test run at the factory, however damage
may occur during handling and shipping. Consequently, it is important to inspect the unit for visible and
concealed damage before beginning installation. Report any damage to the shipper immediately. In addition,
assure all accessory items are accounted for.
Dimensional Data
1
RSF
RSFP
BASE OF UNIT
OPTIONAL DUCT ADAPTER
Fan
SizeASQ.BSQ.BLSQ.
CCLD F G H J
K
SQ.LSQ.
M
Louver
Tiers
RSFP
Nominal
Filter
Weights
RSF RSFP
90 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 3 145 126
100 30 41
1
/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 3 173 146
120 34 47
1
/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 4 225 180
150 40 53
1
/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 5 336 250
180 46 61
1
/8 517/8 341/4 353/8 121/4 221/2 191/2 101/8 113/4 441/2 261/4 91/8
(4) 16x20
5 400 285
(4) 20x20
200 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 6 620 431
All dimensions are in inches.
®
B SQ.
C
D
2 1/2 in.
SQ.
A
BL SQ.
SQ.
A
D
2 1/2 in.
CL
G
A
M
H
M
L
SQ.KSQ.
M
J
F
J
2
Lifting
Lifting the RSF and RSFP model fans must be done with care to avoid
damaging the housing. For Model RSF attach four lifting devices under the
outer housing, each device beneath the vertical row of fasteners (Fig. 1).
Lifting devices should be a minimum of 3 in. 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.
Installation
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.
Electrical Connection
The electrical supply must be compatible with the fan motor with regard to voltage, phase and amperage capacity.
Moreover, the electrical supply line must be properly fused and conform to local and national electrical codes.
Electrical lead-in wires should be routed through the pre-punched hole in the optional duct adapter (if provided) and the
punched hole in the bottom of the fan housing. Electrical wires must be located so as not to rub on moving components.
The electrical supply line is connected to the optional safety disconnect switch (if provided) or wired directly to the motor.
Pre-Starting Checks
Note: For units shipped with motor and drives separate, refer to the Motor Mounting Instructions included in the hardware
bag.
Check all fasteners and set screws for tightness. Rotate the fan wheel by hand
to assure it turns freely and is centered between the inlets. Check pulleys and
belts for proper alignment to avoid premature belt wear, noise, vibration and
power loss. Motor and fan pulleys must be parallel and in line (Fig. 2).
The adjustable motor pulley is set at the factory for the fan RPM specified. Fan
speed can be increased by closing or decreased by opening the adjustable
motor pulley. Two groove variable pitch pulleys must be adjusted an equal
Fig. 1
Lift Here
Lift Here
TYPICAL INSTALLATION
RSF unit with prepunched
mounting holes and 21/2 inch
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
Curb
Size*
Recom.
Roof
Opening
Duct
Size
ID
Nominal
Damper
Size
RSF/RSFP- 90 24
1
/2 15 12 12 x 12
RSF/RSFP- 100 28
1
/2 17 14 14 x 14
RSF/RSFP- 120 32
1
/2 21 18 18 x 18
RSF/RSFP- 150 38
1
/2 23 20 20 x 20
RSF/RSFP- 180 44
1
/2 29 26 26 x 26
RSF/RSFP- 200 50
1
/2 33 30 30 x 30
All dimensions are in inches.
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.
*Recommended curb size shown is outside curb
dimension without roofing and flashing.
WARNING!
DISCONNECT AND SECURE TO THE “OFF” POSITION ALL ELECTRICAL POWER TO THE FAN PRIOR TO INSPECTION OR
SERVICING. FAILURE TO COMPLY WITH THIS SAFETY PRECAUTION COULD RESULT IN SERIOUS INJURY OR DEATH.
Fig. 2
WRONG WRONG CORRECT
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