8
Connecting the Drain (HRV Units Only)
Cut 2 sections of the plastic tube, about 12- in (305 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 in
Fig. 17.
± 12"
(± 305 mm)
± 12"
(± 305 mm)
A12297
Fig. 17 - Connecting the drain
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 in Fig. 18. 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- in from the top of the pail in order to prevent
water from being drawn back up into the unit.
8" M
AX
.
± 1”
10" M
IN
.
T
IE
WRAP
A12566
Fig. 18 - Water Trap
Insert both drain plugs (included in parts bag) in alternate drain
fittings located on top of the unit. See Fig. 19.
A12299
Fig. 19 - Drain Plugs
Integrated Control
All units are equipped with an integrated control, located in front
of the electrical compartment. See Fig. 20. Use the push button (
1
)
to control the unit. The LED (
2
) will then show on which mode the
unit is in.
1 Push Button
2
A12300
Fig. 20 - Integrated Control
NOTES
:
1. The integrated control must be turned OFF to use an option-
al main control.
2. If an optional auxiliary control is used, if activated, this aux-
iliary control will override the optional main control.
Refer to table below to see how to operate the unit using its
integrated control.
PRESS ON PUSH
BUTTON
LED COLOR
RESULTS
Once
Amber
Unit is on Low
Speed
Twice
Green
Unit is on High
Speed
Three Times
No Light
Unit is
OFF
If a problem occurs during the unit operation, its integrated control
LED (2) will blink. The color of the blinking light depends on the
type of error detected. Refer to Troubleshooting Table for further
details.
Boot Sequence
The unit boot sequence is similar to a personal computer boot
sequence. Each time the unit is plugged after being unplugged, or
after a power failure, the unit will perform a 30- second booting
sequence before starting to operate. During the booting sequence,
the integrated control LED will light GREEN (unit set in normal
defrost) or AMBER (unit set in extended defrost) for 5 seconds,
and then will shut off for 2 seconds. After that, the LED will light
RED for the rest of the booting sequence. During this RED light
phase, the unit is checking and resetting the motorized damper
position. Once the motorized damper position completely set, the
RED light turns off and the booting sequence is done.
NOTE
: No command will be taken until the unit is fully booted.
Setting Extended Defrost
The unit is factory set to normal defrost. In cold region, it may be
necessary to setup extended defrost. During the first 5 seconds of
booting sequence, while the integrated control LED is GREEN,
press on push button until the LED turns AMBER (about 3
seconds). See Fig. 21.
