17
6. USING THIS UNIT
This balanced ventilation unit is designed to provide fresh air to your home while exhausting stale, humid air. Thanks to its energy/heat
recovery module, the unit recovers a large proportion of heat or energy that is part of indoor or outdoor air according to the seasons to
improve comfort and energy efficiency during the heating and the cooling periods. With the Virtuo Air Technology
TM
, this unit responds
to the variations in its environment in an autonomous way, ensuring to provide a proper level of ventilation and air quality. This unit also
features automatic modes (AUTO or SMART) that manage autonomously the required ventilation level as per indoor and/or outdoor
conditions. In colder areas, the unit will perform, at intervals, recovery module discreet defrost to maintain performance and comfort.
6.1 y
our
V
entilAtion
s
ystem
6.2 i
ntegrAteD
c
ontrol
All units are equipped with an integrated control, located in front of the electrical compartment.
For more convenience, these units can
be controlled using an optional wall control or the central forced-air system thermostat equipped with external fan activation.
+
-
OK
VD0492
m
ode
selecTion
1. To change the mode, use (+/-) to access the Mode screen. Press OK to edit the mode
and use (+/-) to change the mode (Standby, Min, Max).
2. Press OK to confirm selection. The airflows will be displayed for both MIN and MAX
modes.
NOTE:
If an optional auxiliary wall control or the central forced-air system thermostat
equipped with external fan activation is used, it overrides the integrated control.
6.3 Ahu m
oDe
D
isplAy
Depending on unit configuration and/or installation, the unit could not be able to reach desired minimum CFM. This situation could
happen with configurations T-2 to T-5. In such a case, AHUXX (XX referring to desired minimum CFM value) will display on LCD screen.
In AHU mode, the unit operates in intermittent mode to reach desired minimum CFM value. Intermittent mode duration varies as per
desired minimum CFM value.
5.4 F
Actory
s
ettings
r
eset
If any change is made to the ducting, reset settings to restart the airflow test.
p
rocedure
To
reseT
seTTinGs
Press on the OK and (-) buttons simultaneously for 4 seconds. Use (+/-) to select Yes or No and OK to confirm.
Then perform the auto-balancing procedure.
Options
Configurations available
DEF
(Defrost)
DIS*
(Discretion - defrost without speed variation for more comfort),
PLU
(Plus - extended defrost for colder areas)
INS
(Installation)
T-1, T-2, T-3, T-4*, T-5
(Refer to section 2.2)
DRY
(Dry contact)
MIN*
(Minimum),
INT
(Intermittent),
AUT
(AUTO),
MAX
(Maximum) (Refer to section 3.3.1)
OVR
(Override)
BAL*
(Balanced),
PER
(Performance),
DIS
(Discretion) (Refer to section 3.2.1)
INT
(Intermittent)
STB*
(Standby - 20 min in MIN speed and 40 min in standby mode),
REC**
(Recirculation - 20 min in MIN
speed and 40 min in recirculation mode) ** REC (Recirculation) configuration is not available for T-2 to T-5
installation configurations nor for 150H75NT, 150H75NS, 150E75NT and 150E75NS units.
NOTE :
Following ducting installation configuration and temperature conditions, it may be necessary for the unit
to operate continuously. Refer to section 2.2 for more details.
* Factory setting
NOTE:
If no selection is confirmed within 10 minutes, the unit will exit the menu without saving any changes.
