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8
2.3 CONNECTING THE DRAIN (HRV ONLY)
Install the drain hose included and run it to a drain or a pail. This unit may generate a large amount of water
in cooler weather. It is necessary to install the drain hose properly to prevent water damage and/or material
damage.
CAUTION
• Cut the appropriate length of drain tubing (see illustration
at right).
• Connect the tubing to the provided adaptor.
• Make a water trap loop in the tube to prevent the unit
from drawing unpleasant odors from the drain source.
• Add water in the loop to prevent noise or hiss.
• Make sure there is a distance of at least 2" between the
unit and the tubing loop (see illustration at right).
• Using tie wraps provided, attach the tubing as illustrated.
• Run the tube to the fl oor drain or to an alternate drain
pipe or pail.
• IMPORTANT: If using a pail to collect water, place the tube
end approximately 1" inside the pail in order to prevent
water from being drawn back up into the unit.
2.4 INSTALLING DUAL EXTERIOR HOOD USING TANDEM® TRANSITION KIT (OPTIONAL)
For units set at 110 CFM or less, a Tandem transition kit can be used instead of 2 exterior
hoods; but take into account this device will generate approximately an additional 0.2 in w.g.
static pressure depending on the installation.
The minimum joist opening needed to install the Tandem
®
transition is 9¾". The maximum
height of the Tandem transition is 8¾".
To connect the insulated fl exible ducts to the Tandem transition (Exhaust air to outdoors
and Fresh air from outdoors), follow the instructions included with the Tandem transition kit
(part no.14690).
VR0003
t2"(51 mm)
r1"(25 mm)
5 1/4" (133 mm)
9 3/4" (248 mm)
T
VO0296
Tie Wrap
Tie Wrap
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