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2.3 c
d
oNNecTiNG THe
raiN
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.
•
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 floor 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 i
d
e
NSTalliNG
ual
xTerior
Units for which airflow is equal or under 160 CFM at 0.4 in w.g. static pressure can use a
Tandem transition kit instead of 2 exterior hoods; but take into account this device will
generate additional static pressure depending on the CFM (see graphics below).
The minimum joist opening needed to install the Tandem
height of the Tandem transition is 8¾".
To connect the insulated flexible 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.VTYIK1).
To optimize sound performance during the override boost operation, we recommend to select the discretion (DIS) for the
override (OVR) with any of our VIRTUO equipped HRV or ERV models.
S
a
p
upply
irflow
erformance
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.029
0.05
0.008
0
0
20
40
e
a
p
xhauSt
irflow
erformance
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.028
0.05
0.008
0
0
20
40
(Hrv o
,
d
i
N
NlY
a
raiN
S
H
u
T
® T
ood
SiNG
aNdem
0.157
0.104
0.061
60
80
100
Airflow (CFM) (L/s = n x 0.4719)
0.154
0.102
0.060
60
80
100
Airflow (CFM) (L/s = n x 0.4719)
r
erv m
oT
equired for
CAUTION
9 3/4" (248 mm)
VO0296
k
(o
raNSiTioN
iT
pTioNal
transition is 9¾". The maximum
®
0.377
0.294
0.221
120
140
160
250
0.368
0.287
0.216
120
140
160
8
)
odelS
≥ 2"(51 mm)
5 1/4" (133 mm)
Tie Wrap
T
Tie Wrap
± 1"(25 mm)
)
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