Stage 2 In Min Ventilation - Airstream EXPERT 2V3SA User Manual

EXPERT 2V3SA

6.1.3. Stage 2 in Min Ventilation

Stage 2 fans can be used to provide minimum
ventilation as shown on the graph below:
Stage 2 Fans
in Minimum Ventilation
Ventilation
Level
Stage 2
full speed
Stage 2
minimum
speed
Stage 2
Off
Stage 1
full speed
0.3°F
Stage 1
minimum
Min.
speed
Vent.
Stage 1
Off
# degrees
to reach full
speed of
stage1
T°SetPoint
- When the room temperature falls below the
start temperature of stage 2, stage 2 fans run
intermittently according to the same timer as
the one used by stage 1.
- When the room temperature increases
above the start temperature of stage 2, stage
2 fans start increasing in speed continuously.
Low Temperature Override: If the room tem-
perature gets too cold while the controller
is in minimum ventilation, low temperature
override functions can be enabled to reduce
the speed of stage 1 fans and to stop stage 2.
This allows reheating the room faster. Refer
to the "User Setup Menu" on page 11
to enable the Low Temperature Override
functions.
20
EXPERT 2V3SA, rev.10
0.3°F
Room
# degrees
Temp
to reach full
speed of
stage2
Stage 2
Start T°
1. From the main menu, select: STAGE 2.
2. Use the navigation keys to select this
screen:
Min Ventilation.
On
3. Set the following parameters:
(The parameter adjustment process is explained
in section 3.2 on page 8).
Minimum ventilation — Select "Yes" if to
use stage 2 fans in minimum ventilation.