Merging Fan Stages; Merging Fan Stages 1 & 2; Merging Stages 2 And 3 - Airstream EXPERT 2V2SA User Manual

EXPERT 2V2SA
6.4.

Merging Fan Stages

Refer to the User Setup Menu to en-
able the Stage Merge options.
6.4.1. Merging Fan Stages 1 & 2
The transition from Stage 1 to Stage 2 can cre-
ate jumps in the volume of displaced air. This
can be smoothed out by merging stages. When
the merge between stages 1 and 2 is activated,
the speed of Stage 1 fans is decreased to match
the speed of Stage 2 fans when Stage 2 fans
start up. As the temperature increases, the
fan speed of both stages increases to create
a smooth progression. When the temperature
reaches Stage 2 Start Temp + #of degrees to
reach 100% of fan stage 2, Stages 1 and 2
both reach their maximum speed.
Speed of
Fan Stage 1 (%)
100%
Stage 2
(Min speed)
Stage 1
Min.
(Min speed)
Vent.
Off
Ventilation
Stage 3 On
Stage 3 Off
Stage 2
(Full speed)
Stage 2
(Min speed)
Stage 2 Min.
Vent. Timer
Stage 2 Off
Merge between Fan Stages 1 & 2
0.3°F
# of degrees to
reach 100%
Stage 1
of stage 1
Start T°
Merge between Fan Stages 2 & 3
# of degrees to
reach 100%
Stage 2
of stage 2
Start T°

6.4.2. Merging Stages 2 and 3

The transition from Stage 2 to Stage 3 can
create jumps in the volume of displaced air.
This can be smoothed out by merging two
stages. When the merge between stages 2
and 3 is activated, the speed of stage 2 fans
is decreased when stage 3 fans start up.
As the temperature increases, the speed of
stage 2 fans is increased to create a smooth
progression. When the temperature reaches
stage 3 start temp. + #of degrees to 100% of
stage 3, stages 2 fans reach their maximum
speed once again and stage 3 fans operate
at their full speed.
# of degrees to
reach 100%
Stage 2
of stage 2
Start T°
# of degrees to
reach 100%
of stage 3
Stage 3 Stage 3
Stop T° Start T°
Room T°
Room T°
EXPERT 2V2SA, rev. 10
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