11
3. INSTALLATION
(
CONT
’
D
)
3.8 I
NSTALLING
T
WO
E
XTERIOR
H
OODS
Choose an appropriate location to install the exterior hoods:
• There must be a minimum distance of 6 feet (1.8 m)
between the hoods to avoid cross-contamination
• There must be a minimum distance of 18 inches
(457 mm) from the ground
Refer to figure at right for connecting insulated ducts to the
exterior hoods. An “Anti-gust intake hood’’ should be installed
in regions where a lot of snow is expected to fall.
WARNING
!
Make sure the intake hood is at least 6 feet (1.8 m)
away from any of the following:
• Dryer exhaust, high efficiency furnace vent,
central vacuum vent
• Gas meter exhaust, gas barbecue-grill
• Any exhaust from a combustion source
• Garbage bin and any other source of contamination
3.9 C
ONNECTING
THE
D
RAIN
CAUTION
A drain tubing (included) must be installed for all HRV units. For ERV units, it is not required, however, it is
recommended for climates where the outdoor temperature typically remains below -25°C (-13°F), (over a 24-hour
period) for several days in a row, combined with an indoor humidity of 40% or higher.
VO0258A
16"
(406 mm)
16"
(406 mm)
Cut 2 sections of the plastic tube, at least 16” (406 mm) long, and
attach them to each inner drain fitting, located under the unit.
Join both short sections to the “T” junction and main tube as shown.
VD0239
D
RAIN
PLUGS
NOTE: For ERV units, remove both drain plugs inside the unit prior
to install tubing.
VD0337A
± 1”
T
IE
WRAP
Make a water trap loop in the tube to prevent the unit from
drawing unpleasant odors from the drain source. Make sure this
loop is located OVER the “T” as shown. Run the tube to the floor
drain or to an alternative drain pipe or pail.
IMPORTANT
If using a pail to collect water, locate the tube end approximately
1” from the top of the pail in order to prevent water from being
drawn back up into the unit.
VD0028
E
XHAUST
HOOD
I
NTAKE
HOOD
T
APE
AND
DUCT
TIE
18"
(457
MM
)
6'
(1.8
M
)
18"
(457
MM
)
18"
(457
MM
)
6'
(1.8
M
)
6" Ø
(152
MM
)
O
PTIONAL
DUCT
LOCATION
