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.
Installation Sequence
Hood |
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)
Lifting Lugs
Mounting
Channels
Roof
Curb
Plenum
Fig. 1
Fig. 2
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
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 45o from closed position. Consult factory before adjusting damper linkages.
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