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INSTALLATION AND OPERATION MANUAL
HE3XRT
In 2012, these ERVs may be ordered with new factory-
installed features including Isolation Dampers and Variable
Frequency Drives. Consult the supplemental Installation
and Operation Manual(s) for these features if supplied.
HE3XRT
Due to continuing product development, specifications are subject to change without notice.
134773_005
HE3XRTMan_Jan12.indd
4510 Helgesen Drive, Madison, WI 53718
(608) 221-4499, (800) 627-4499, Fax: (608) 221-2824
support@renewaire.com www.renewaire.com
RISK OF FIRE, ELECTRIC SHOCK, OR INJURY.
OBSERVE ALL CODES AND THE FOLLOWING:
1. Before servicing or cleaning the unit, switch power
off at disconnect switch or service panel and lock-
out/tag-out to prevent power from being switched on
accidentally. More than one disconnect switch may be
required to de-energize the equipment for servicing.
2. This installation manual
installation method. Additional measures may be
required by local codes and standards.
3. Installation work and electrical wiring must be
done by qualified professional(s) in accordance
with all applicable codes, standards and licensing
requirements.
4. Any structural alterations necessary for installation
must comply with all applicable building, health, and
safety code requirements.
5. This unit must be grounded.
6. Danger of severe injury to bystanders and damage to
unit or property if high winds move this unit. Secure
this unit to the building!
7. Sufficient air is needed for proper combustion and
exhausting of gases through the flue (chimney) of fuel
burning equipment that might be installed in the area
affected by this equipment. If this unit is exhausting
air from a space in which chimney-vented fuel
burning equipment is located, take steps to assure
that combustion air supply is not affected. Follow the
heating equipment manufacturer's requirements and
the combustion air supply requirements of applicable
codes and standards.
8. Use the unit only in the manner intended by the
manufacturer. If you have questions, contact the
manufacturer.
9. This unit is intended for general ventilating only. Do
not use to exhaust hazardous or explosive materials
and vapors. Do not connect this unit to range hoods,
fume hoods or collection systems for toxics.
10. When cutting or drilling into wall or ceiling, do not
damage electrical wiring and other hidden utilities.
To avoid motor bearing damage and noisy and/or
unbalanced impellers, keep drywall spray, construction
dust, etc., out of unit.
Do not remove or disable the wiring interconnection between the
Overload Relays and the Contactors. Without this interconnection
the motor(s) will not be protected against overload.
Revised 01/2012
shows the
© 2012 RenewAire LLC
www.renewaire.com
suggested
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  • Page 1 Do not remove or disable the wiring interconnection between the Overload Relays and the Contactors. Without this interconnection the motor(s) will not be protected against overload. HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com...
  • Page 2: Rigging Information

    See Rigging Information for unit weight. RenewAire strongly recommends that you secure rooftop units properly to the building structure. Strong winds, tornados, and hurricanes can and do displace or remove rooftop equipment from rails or curbs.
  • Page 3 12” x 34” (on side) 11” x 12” (on side) HE3XRTH [14” x 36”] [13” x 14”] HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com Page 3...
  • Page 4 N BLOWER P MOTOR SHEAVE R BELT S BLOWER SHEAVE T INTAKE HOOD U EXHAUST HOOD HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com Page 4...
  • Page 5 56 1/2" Power & 56 7/8" 19 7/8" Control Wire Inlet RIGHT VIEW FRONT VIEW LEFT VIEW HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com Page 5...
  • Page 6: Sound Attenuation

    Electrical Options are identified on the Unit Label (located near electrical box). Find the complete Unit Model Number in the lower left corner of the Unit Label. HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com...
  • Page 7 FACTORY WIRING 24VAC Call for OA Blower Operation. FIELD WIRING 24VAC Call for EA Blower Operation. HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com Page 7...
  • Page 8 Call for OA Blower Operation. FACTORY WIRING 24VAC 24VAC FIELD WIRING Call for EA Blower Operation. HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com Page 8...
  • Page 9: Motor Starters

    1000’ motor for HP and FLA specifications. “Circuit Length” is distance from ERV to Control Device. HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com Page 9...
  • Page 10: Control Wiring Schematics

    Connect Terminals 2 & 3 Isolation Relay Coil (Fresh Air) Isolation Relay Coil (Exhaust Air) Connect Terminals 4 & 5 HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com Page 10...
  • Page 11: Measuring Airflow

    (b) Sheaves for 5HP motors can be adjusted from 1843 RPMs at 0 turns to 1503 RPM at 6.5 turns. However, motor efficiency drops at lower loads. HE3XRT Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC 134773_005 HE3XRTMan_Jan12.indd Revised 01/2012 www.renewaire.com...
  • Page 12: Maintenance

    INITIAL PRESSURE DROP: 20" x 20" & 16" X 25" MERV 8 FILTERS INITIAL PRESSURE DROP 20” x 20” MERV 8 FILTERS RENEWAIRE PART NUMBERS 103054 & 103057 RENEWAIRE SERVICE PART NUMBER 990083 Inspect and/or replace filters every two or three months when the unit is in regular use, or as needed.

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