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Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.
Ship Loose VFD
Control Package
Table of Contents
General Safety Information . . . . . . . . . . . . . . 2
USF Controls Overview . . . . . . . . . . . . . . . 3-4
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Induction Motors with VFD . . . . . . . . . . . . . . 7
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
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Controls. . . . . . . . . . . . . . . . 9-10
Electrical Installation Guidelines . . . . . . . . . . . .11
Additional Operating Information . . . . . . Backcover
Our Committment . . . . . . . . . . . . . . Backcover
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VG-BLDC
Induction Motor with
Mounted and Wired VFD
DANGER
Always disconnect, lock and tag power source before
installing or servicing. Failure to disconnect power
source can result in fire, shock, serious injury or death.
CAUTION
When servicing the fan, motor may be hot enough
to cause pain or injury. Allow motor to cool before
servicing.
CAUTION
Precaution should be taken in explosive atmospheres.
DANGER
Pour écarter les risques d'incendie, de choc électrique
ou de blessure grave, veiller à toujours débrancher,
verrouiller et étiqueter la source de courant avant
l'installation ou l'entretien.
ATTENTION
Lors de toute intervention sur la soufflante, le moteur
peut être suffisamment chaud pour provoquer une
douleur voire une blessure. Laisser le moteur refroidir
avant toute maintenance.
ATTENTION
Faire preuve de précaution dans les atmosphères
explosives.
Document 1037587
Model USF
Motors and Controls
VG-SynRM or
USF Motors and Controls
1
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Table of Contents
Related Manuals for Greenheck USF
Summary of Contents for Greenheck USF
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Page 1: Table Of Contents
General Safety Information ....2 installing or servicing. Failure to disconnect power USF Controls Overview ....3-4 source can result in fire, shock, serious injury or death. -
Page 2: General Safety Information
Prior to assembly and installation of the unit and system components, inspect the assembly to make sure it is in working order. Check all fasteners and accessories for tightness. USF Motors and Controls ®... -
Page 3: Usf Controls Overview
The purpose of this document is to provide additional information on the different types of motors and controls offered on the model USF fan. The USF is a configurable product, available with the following motor technologies: 1. AC Induction motor only Vari-Green ®... -
Page 4: Vari-Green ® Brushless Direct Current Motor (Bldc)
1ph3ph VFD Vari-Green (VG) Brushless Direct Current Motor (BLDC) The USF utility blower offers BLDC motors as part of its available configurations. These motors are available in horsepowers from 0.25 to 1, in single phase voltages from 115 to 277, and provide up to 80% energy savings over traditional 1-phase induction motors. - Page 5 0.25 919293 320588 0.50 115/208- Advanced 300 - 1750 NEMA-3R Hand/Off/Auto 230/277 919294 350589 0.75 919295 320590 To get additional information on the Vari-Green BLDC motors, see the Vari-Green Motors and Controls IOM; Document 473681. USF Motors and Controls ®...
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Page 6: Vari-Green Synchronous Reluctance Motor (Synrm)
Vari-Green Synchronous Reluctance Motor (SynRM) Greenheck uses ABB EC Titanium motors as an additional expansion to the BLDC motors listed above. These motors expand the fractional HP selections typically offered in BLDC into larger integral horsepower selections. The USF combines the Vari-Green motor and integrated drive with a mounted and wired NEMA-3R rated control box complete with Vari-Green HOA controller, transformer and toggle-style disconnect switch. -
Page 7: Induction Motors With Vfd
(arrangement 4) configurations or shipped loose on all arrangements, including arrangement 4. VFD Options Model USF uses two VFD models. The manufacturer is ABB for both, and the models used are the ACS-255 and ACS-320. These different models were used to handle different voltages and phases. -
Page 8: Control Box (Vari-Green: Synrm, Induction With Vfd)
XHHW motor wire is recommended when VFD installed in distances greater than 25 feet from motor. The Induction motor control box configuration has multiple control options: 1. Hand/Off/Auto 5. Constant Airflow 2. Remote Dial 6. IAQ – Temp / Humidity 3. Touch Remote 7. IAQ – VOC 4. Constant Pressure USF Motors and Controls ®... -
Page 9: Vari-Green Controls
This control also mounts in a standard single gang 2x4 junction box and requires a 3-wire control cable to be wired back to the HOA controller. To get additional information on the Vari-Green Touch Remote, see the Vari-Green Motor and Controls IOM, Document 473681. USF Motors and Controls ®... -
Page 10: Constant Pressure
(VOCs) in the space and automatically adjusts the speed of the fan to maintain the set point accordingly. To get additional information on the Vari-Green Volatile Organic Compounds Control, see the Indoor Air Quality-VOC Control IOM, Document 458146. USF Motors and Controls ®... -
Page 11: Electrical Installation Guidelines
Keep control wires as short as possible [100 ft. (30.5 m) or less] and separate from high power cables to minimize interference. • XHHW motor wire is recommended for ship loose VFD applications when the fan is installed in distances greater than 25 feet from the control box. USF Motors and Controls ®... -
Page 12: Additional Operating Information
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice. Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature section of the website at Greenheck.com/Resources/Library/Literature.