Accurex XCR, Manual

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UTILITY FANS | 3 2
XUEF Direct Drive
The XUEF direct drive model (100 series only) is an arrangement for utility set fan with a backward-inclined
centrifugal wheel. The housing is constructed from galvanized steel with a bolted frame. High-performance
powder coating is optional. Fans are provided with integral speed control for easy system balancing.
Simplified wiring and preprogrammed variable frequency drive (3-phase) make installation quick and easy.
STANDARD CONSTRUCTION
AND CONFIGURATION
• Volume up to 6,500 cfm
• Static pressure up to 3 in. wg
• Galvanized or coated steel
• Permalock™ lock seam scroll
• Aluminum wheel
• NEMA-3R, toggle switch, mounted and wired
• Bolted access door
• Weatherhood
• Drain
ACCESSORIES
• Inlet guard
• Outlet flange
• Outlet guard
• Backdraft gravity damper
• Neoprene isolators
• Equipment supports
• Extended warranty
3-PHASE MOTOR WITH MICRO DRIVE (VFD)
EC motors are great for single-phase applications. However, once fan performance approaches 1 hp, motors
move to 3-phase applications. Using a 3-phase induction motor with a micro drive (VFD) is a good way to get
the same functionality as an EC motor.
• 3-phase induction motors are just as or more efficient than single-phase EC motors
• VFD allows motor to speed up or slow down to achieve desired RPM
GREENHECK VARI-GREEN ® MOTOR BENEFITS
Electronically commutated (EC) Vari-Green motor
combines motor technology, controllability and
energy-efficiency into a single low-maintenance unit
and is the industry’s first fully-controllable motor.
• Motor can attain up to 85% efficiency, reducing
energy consumption
• 80% usable RPM turndown vs. 30% on
AC single phase direct drive, allowing for
a broader speed adjustment covering
more fan performance ranges
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Simplified Wiring – Easy
to install – featuring a
terminal strip, disconnect
and speed control mounted
and wired by the factory.
Direct Drive Motor – Low
maintenance – no belts,
bearings or pulleys to service.
Integrated Speed Control – Speed control is mounted, wired
and programmed at the factory. Adjust fan speed with the
push of a button. Single-phase applications use electronically
commutated (EC) Vari-Green motor with a control dial for
adjustment. Three-phase applications use a NEMA Premium
Efficient motor with variable frequency drive (VFD). 1- and
3-phase options can be controlled via 0-10 vDC signals.
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STANDARD CONSTRUCTION FEATURES – XUEF DIRECT DRIVE