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In the event the blower is located where dust, fibers,
drops of water, or other particulates may be in the
airstream, use a filter on the suction side of the piping. If
foreign matter enters the impeller, it may clog, jam, or
otherwise impair the blower performance.
Wiring
Caution: Confirm that the power source is the same
as that indicated on the unit's nameplate. Application
of incorrect voltage or improper phase connection
may cause motor failure or other damage.
Use conductors and devices (such as the circuit
breakers, starters, and switches shown in Figure 3)
that are suitable for the applications shown in Tables
1 and 2 and are in compliance with the National
Electric Code and applicable local codes and regula-
tions. Motor terminal connections are shown below
Table 1.
The Spencer Turbine Company 600 Day Hill Road, Windsor, CT 06095-4706 TEL 800-232-4321
Provide protection from overheating of the motor
windings. Some models are equipped with built-in
thermal protectors (see Table 1). Where applicable,
connect the leads from the pilot-duty thermal protector
to the magnetic starter as shown in Fig. 3.
Check the direction of rotation of the blower.
To reverse the direction or rotation:
1) for a single-phase motor, interchange motor
leads 5 and 8.
2) for a three-phase motor, interchange any two of
the three line connections.
Caution: Install a properly-sized overload device and
disconnect in accordance with local codes and regu-
lations and dedicated only to the Vortex Blower.
Furnish the Vortex Blower and all associated electrical
devices with a proper ground in accordance with
all local codes and regulations.
Fig. 3 Typical Wiring Diagram
860-688-8361
FAX 860-688-0098
3
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