ERV
HE1.5XRT
WWW.RENEWAIRE.COM
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
1.800.627.4499
10
INSTALLATION
GENERAL PRACTICES
Take these simple steps to attenuate noise from the unit.
Outside the building:
The intake (OA) hood is the primary source of noise
outside the building. When practical, orient the outake
air hood to point away from houses or public areas.
At the Curb:
Cut the holes in the roof deck to fit closely around
the duct(s) passing through the roof deck. Seal all
gaps around the duct(s) at the roof deck.
Ducts:
Make sure the ductwork at the unit outlets is stiff
enough to resist the flexure and resulting booming
associated with system start-up and shut-off.
In general, provide smooth transitions from the ERV’s
outlets to the duct. The ducts connecting to the
outlets should be straight for a sufficient distance,
with gradual transitions to the final duct size.
These guidelines are consistent with SMACNA
recommended duct layout practices for efficient
and quiet air movement. Follow SMACNA guidelines.
RADIATED NOISE
The HE1.5XRT is insulated with high-density
fiberglass. This provides significant attenuation
of radiated sound from the unit itself.
The RA connector duct can be significant sources
of radiated sound as well. The RA duct should be
insulated for sound control. This insulation should
start at the unit. At a minimum the first ten feet of
duct should be insulated. All parts of the FA and
RA ducts located in a mechanical space with noise-
generating equipment also should be insulated for
sound control, both to minimize sound radiation out
of the FA duct, and also to control sound radiation
into both ducts.
PLANNING
YOUR INSTALLATION
To avoid motor bearing damage
and noisy and/or unbalanced
impellers, keep drywall spray,
construction dust, etc., out of unit.
CAUTION
1. Before servicing or cleaning the unit, switch
power off at disconnect switch or service panel
and lockout/tag-out to prevent power from being
switched on accidentally. More than one discon-
nect switch may be required to de-energize the
equipment for servicing.
2. This installation manual shows the suggested
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 licens-
ing requirements.
4. Any structural alterations necessary for instal-
lation 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 dam-
age 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 (chim-
ney) of fuel burning equipment that might be in-
stalled in the area affected by this equipment. If
this unit is exhausting air from a space in which
chimney-vented fuel burning equipment is locat-
ed, take steps to assure that combustion air sup-
ply is not affected. Follow the heating equipment
manufacturer’s requirements and the combus-
tion 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.
RISK OF FIRE, ELECTRIC SHOCK, OR INJURY. OBSERVE ALL CODES AND THE FOLLOWING:
WARNING
SOUND
ATTENUATION
