Greenheck ERD User manual

GREENHECK
P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410
PH. 715-359-6171
www.greenheck.com
®
READ AND SAVE THESE INSTRUCTIONS
Models ERD/ESRMD/ESRMDF
Direct Drive - Four Way Fans
Exhaust/Supply/Recirculate/Mix
Dimensional Data
Control Damper
Low Leakage Control Damper
OPTIONAL DIFFUSER
H
OPTIONAL DIFFUSER
12"
C
G
A Sq.
B Sq.
Roof Opening
*
20"
E
D
ACCESS DOOR
F
5"
*Option: Plenum height can be increased in 12" increments.
See page 4 of Four Way catalog.
Low Leakage Control Damper
Control Damper
Control Damper
OPTIONAL DIFFUSER
H
F
C
A Sq.
B Sq.
Roof Opening
*
20"
5"
G
DxE
Access
Door
Models ESRMD & ESRMDF Model ERD
Top Damper Recirc. Damper Access Doors Roof
Size A B C* VCD-2120 VCD-1020 DE
Opening
24 40 32 581/229x29 27w x 26h 21 20 341/2
30 46 38 63 35x35 33w x 30h 27 20 401/2
36 52 44 715/841x41 39w x 38h 33 22 461/2
42 58 50 753/447x47 44w x 42h 38 36 521/2
48 64 56 825/853x53 50w x 48h 44 36 581/2
54 70 62 91 59x59 56w x 54h 50 36 641/2
Non-Filtered Hood Filtered Hood Upblast Hood Approximate Unit Weights
Size ESRMD Hood Size ESRMDF Hood Size ERD Hood Size ESRDM ESRMDF ERD
F G H F G H F G H Alum Galv Alum Galv Alum Galv
24 63 66 30 63 66 30 21/4313/8261/4570 650 670 750 400 480
30 75 74 32 75 78 32 31/2373/8303/8760 900 860 1000 490 630
36 87 76 33 87 94 33 41/2433/4333/41040 1200 1170 1330 715 875
42 99 86 361/299 100 361/241/250 381/21200 1400 1330 1530 850 1050
48 111 100 361/2111 112 361/251/2561/441 1470 1700 1620 1850 1110 1340
54 111 112 39 112 124 39 51/2633/845 1770 2000 1920 2150 1405 1635
PN 453668
Installation, Operation and Maintenance Manual

2
Installation
Greenheck Model ESRMD & ERD fans are thoroughly inspected and test run at the factory, however
damage may occur during handling and shipping. Consequently, it is important that the fan be carefully
inspected for visible and concealed damage before installation. Report any damaged or missing items to
the shipper immediately.
Follow the installation sequence shown below. Attach the plenum and hood to the roof curb using a
suitable fastener in each of the prepunched mounting holes. Care must be taken not to bend or distort
the plenum and fan components during installation.
Electrical Connections
Before electrical connections are made, the supply voltage, phase and ampere capacity must be
checked for compatibility with the fan motor. In addition, the supply wiring must be properly fused and
conform to local and national electrical codes.
If fan is to be wired to a control center, which is available through Greenheck, the control center wiring
instructions must be followed.
Pre-Starting Checks
Check all fasteners and set screws for tightness. The propeller should rotate freely and not rub on the fan
panel. The unit was aligned and test run at the factory prior to shipment, however movement of various
components may occur during shipment. Proper propeller rotation should be determined by momentarily
energizing the fan in the exhaust mode. If the rotation in the exhaust mode is for supply the motor wiring
between the fan and the controls should be changed. For 3 phase units, simply interchange any two of
the three electrical supply leads. Single phase units should not rotate the wrong direction, since the fan
has been pre-run at the factory.
Guards
Guards are required to protect the fan and nearby personnel. If guards are not ordered with the fan, they
must be supplied by the installer. When ordered with the fan, the guard is attached to the bottom of the
double venturi panel.
Damper Plenum Linkage Adjustments
Plenum dampers should open to 45ofrom closed position. Consult factory before adjusting damper
linkages.
Hood
Mounting
Channels
Lifting Lugs
Roof
Curb
Plenum
Fig. 1
Fig. 2
Installation Sequence
1. The roof curb is mounted and
secured over the roof opening to
the roof structurals.
2. The plenum (factory assembled)
is lowered through the curb and
roof opening until its mounting
channels rest on the roof curb.
Lifting Lugs are provided. (Fig. 1)
3. The hood is lowered onto the
curb/plenum assembly. (Fig. 1)
4. The hood and plenum are
secured to the roof curb. (Fig. 2)

3
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.
Routine Maintenance
Once the fan has been put into operation, periodic maintenance should be performed on the following items:
1. Motors
Greasing of motors is intended only when fittings are provided. Many fractional horsepower motors are
lubricates for life and require no further lubrication. Motors supplied with grease fittings should be greased in
accordance with the motor manufacturer's directions given on the motor nameplate.
2. Removal of Dust and Dirt
Model ESRMD fans require periodic cleaning to maintain proper air performance and reliability. Dirt left to
accumulate on propeller blades may cause an unbalanced condition resulting in excessive vibration and
premature failure of the fan.
Dust and dirt should also be cleaned from the exterior surface of the fan motor and damper actuator(s). Dirt
accumulation on the motor/actuator(s) can block ventilation holes and prevent proper cooling. Motors and
actuators should never be sprayed directly with water, steam or solvents.
3. Filter Maintenance (Model ESRMDF)
Aluminum mesh filters should be cleaned on a regular basis for optimum fan efficiency. The frequency of
cleaning depends upon the cleanliness of the incoming air.
To remove filters in fan sizes 24-30, first remove the hood. This is accomplished by removing the two fasteners
on one side of the hood and loosening the other two fasteners in the other side of the hood. Hinge the hood over
onto the roof deck; DO NOT prop the hood up, the hood could come down accidentally causing injury. The filters
can then be pulled from the slide-out racks.
On sizes 36 to 54, access panels are provided in the ends of the hood which allow the filters to be removed
without removing the hood.
Filters should be washed with a mild detergent in warm water. After the filters are dry, an adhesive spray
available at most filter distributors may be applied to increase filter efficiency.
4. Fasteners
Fan vibration has a tendency to loosen mechanical fasteners. Periodic inspection should include checking all
fasteners for tightness. Particular attention should be paid to fasteners attaching the propeller to the motor shaft
and the motor to the motor plate.
5. Damper Plenum Linkage Adjustments
Plenum dampers should open to 45ofrom closed position. Consult factory before adjusting damper linkages.

Parts List
Model ESRMD & ESRMDF
Model ERD
Control Damper
Optional Diffuser
Butterfly Dampers (2)
VCD-1020 (2)
Fan Motor
Damper Actuator
Motor Plate
Drive Frame Angle (2)
Propeller
Double Venturi Panel
Optional Diffuser
ACCESS DOOR
Birdscreen
or
Filters
VCD-2120
Fan Motor
Damper Actuator
Motor Plate
Drive Frame Angle (2)
Propeller
Double Venturi Panel
VCD-1020 (2)
Low Leakage Control Damper Low Leakage Control Damper
Optional Diffuser
Control Damper Control Damper
GREENHECK
P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410
PH. 715-359-6171
®
Warranty
Greenheck warrants this equipment
free from defects in material and
workmanship for a period for one year
from the purchase date.
Any units or parts which prove to be
defective during the warranty period
will be replaced at our option when
returned to our factory, transportation
prepaid.
Motors are warranted by the motor
manufacturer for a period of one year.
Should motors furnished by
Greenheck prove defective during this
period, they should be returned to the
nearest authorized motor service
station. Greenheck will not be
responsible for any installation or
removal costs.
4
IOM ERD/ESRMD/ESRMDF FS
Rev. 2
September 1999