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EXPERT 2V2SA
6.4.3. Nbr of Degrees to 100% of
Stage 3
1. From the main menu, select: STAGES 3-.
2. Use the navigation keys to select this
parameter:
Degrees to 100%
2.0°F
(This parameter is accessible if the merge be-
tween stages 2 and 3 is enabled in the User Setup
Menu.)
3. Set the number of degrees required to
reach 100% of Stage 3. This value rep-
resents range of temperature over which
stage 2 fans increase or decrease in speed
proportionally to the temperature once
stage 3 fans are activated (see previous
graph). This parameter ranges from 0.5°F
to 20.0°F (0.3°C to 11.1°C).
6.5.
De-icing Stage 2 Fans
Stage 2 fans can automatically be de-iced
in cold weather conditions (or in any condi-
tions if the controller does not use an outside
temperature sensor).
When a de-icing cycle starts, Stage 1 fans are
stopped then stage 2 fans start running at full
speed for 2 seconds. Stage 2 fans then run at
their minimum speed during the de-icing time.
Once the de-icing time has elapsed, stage 2
fans stop running and the regular ventilation
process is resumed.
De-icing
De-icing Timer
Status
ON
OFF
De-icing
time
Cycle
Time
28
EXPERT 2V2SA, rev.10
Settings
1. From the main menu, select: STAGE 2.
2. Use the navigation keys to select these
parameters:
De-icing out T°
On:
Cycle:
3. Set the following parameters:
(The parameter adjustment process is explained
in section 3.2 on page 8).
De-icing out T° —Set the outside tempera-
ture below which the de-icing cycles must
start. *This parameter is only accessible if the
de-icing function and the outside temperature
sensor are enabled in the User Setup Menu.
On — Set the Time On portion of the
de-icing cycles. It ranges from 0 to 900
seconds. **This parameter is only accessible
if the de-icing function is enabled in the User
Setup Menu.)
Cycle — Set the amount of time that sepa-
rates two consecutive de-icing cycles. The
cycle time ranges from 1 to 720 minutes
and must be greater than the Time On.
**This parameter is only accessible if the de-ic-
ing function is enabled in the User Setup Menu.)
Time
The de-icing cycles are only activated
when the outside temperature falls
below a user-defined temperature
unless the controller has no outside
temperature sensor. In that case, the
de-icing cycles are always active.
*
41.0°F
**
20sec
720min
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