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5. INSULATED FLEX FROM UNIT TO OUTSIDE WALL
WARNING:
Always fix and secure the
6" collars with the screws supplied.
Avoiding this critical step the unit will
accumulate condensation.
Tip to installer:
To ensure a better
installation and to avoid an undesired
bend in the duct, align the duct with
the collar before securing over the four
hooks.
The Fresh air from outside and
the Exhaust air to outside from the
termination ducts to the HRV/ERV must
be fully insulated of thermal insulation
ducts to minimize heat loss and gain.
All tapes, mastics, and nonmetallic
clamps used for field installation
of flexible ducts shall be listed and
labeled to Standard UL 181B - Closure
Systems for Use With Flexible Air Ducts
and Air Connectors.
Air Connector
A category of flexible
duct not meeting the requirements of
an Air Duct per UL 181 Standard (not
tested for flame penetration, puncture
and impact) and having limitations on
use, length and location as defined by
NFPA 90A and 90B.
Air Connectors are identified by a
“round shape” listing label of the
listing agency.
Air Duct
A category of flexible duct
tested and classified as to the Surface
Burning Characteristics in accordance
with the UL 181 Standard
Air Ducts are identified by a
“rectangular shape” listing label of the
listing agency.
To ensure quiet operation of ENERGY
STAR qualified HRV/ERVs, each
product should be installed using sound
attenuation techniques appropriate for
the installation. (Ref. Figure 5.5)
figure 5.1
Insert vinyl duct over the hooks and
seal with a Tie wrap.
figure 5.2
Insert insulation inside the double
collar.
figure 5.3
Finish by taping the vapor barrier to
the collar to insure proper seal.
Once insulated flex is attached to the collar, slide
collar in keeper section, fixed collar to the unit
with four screws supplied in installation kit to
insure a proper seal.
figure 5.4
Slide collar on the unit.
IMPORTANT:
Always consult your national and
local regulations, building and safety codes.
4. INSTALLATION OF THE HRV / ERV
Finding a suitable installation
area for HRV or ERV
The HRV/ERV
unit should be installed in a mechanical
room or as close to an outside wall as
possible. This would assure a short run
of insulated flexible duct.
The HRV/ERV unit must always be
installed in an area where the air is
tempered to avoid freezing of the
condensate line. The contractor should
install the unit in an area that is very
accessible to allow the homeowner
easy access for maintenance.
It is very important to install an electric
receptacle (115v) near the HRV /
ERV, a separate circuit breaker is also
recommended. You should have access
to a condensate drain near the HRV/ERV
to avoid the use of condensate pump.
Tip to installer:
Place HRV/ERV on a
stepladder to ease the hanging process.
If the unit is not level, improper drainage
will occur and could lead to moisture
and leakage problems.
figure 4.1
Place HRV or ERV on a stepladder
figure 4.2.
Attach your four (4) chains to the
floor joist making sure that you attach thru the
washers and the chain link.
figure 4.3
When completing the procedure
make sure that the HRV or ERV is leveled.
Figure 5.5
Fix and secure with two screws
supplied.
Note:
The RNC 1.0 collars are secured
& selaed to the units.
