Modifying Curve Points; Ventilation & Cooling; Minimum Ventilation; Min Vent. Fan & Timer - Airstream EXPERT PN110 User Manual

Table of Contents

Advertisement

EXPERT PN110
1. Select:
» SET POINT / CURVE
2. Curve
»
2. Press the down-arrow key once to select
the fi rst point of the curve.
Temperature Curve
Day:
1
Temp:
78.0°F
3. Set the following parameters:
Day — Set the day at which each step starts.
The day number refers to the animal age.
*This parameter can only be modifi ed while the
curve is disabled.
Temp. — Assign a temperature set point to
each step of the curve. *This parameter can only
be modifi ed while the curve is disabled.
Status — Once all 10 curve steps are defi ned,
press the down-arrow key to select the curve
status at the bottom of the screen and then
select "Yes" to enable the curve. Once it is on,
the controller automatically adjusts the set
point between consecutive points of the curve.

5.2.1. Modifying Curve Points

You can adjust the temperature set point of
all curve points while the curve is running.
1. Select:
» SET POINT / CURVE
3. Curve Offset
»
* Accessible while the curve is running only.
Curve Temp Offset
T°Offset
0.0°F
2. Set the following parameters:
Curve offset — Select the number of degrees
that need to be removed or added to all set
points of the temperature curve (+/- 10°F).
*Accessible if the temperature curve is currently
running.
6. VENTILATION & COOLING
6.1.

Minimum Ventilation

When the room temperature is below the
set point, the fans can operate according to
a minimum ventilation cycle. Running the
fans even though ventilation is not required
for reducing room temperature is useful to
reduce humidity level and supply oxygen
to the room. It also prevents the fans from
freezing in winter.
Minimum
Min.Vent
Ventilation Timer
Fan Status
ON
OFF
ON Time
Cycle
Time
Minimum ventilation cycles are ensured by
the variable fan outputs. The fan speed can
automatically adjusted over time by using a
curve (see sec. 6.1.4).
The minimum ventilation curve must
be turned off to adjust the minimum
ventilation settings.
6.1.1. Min Vent. Fan & Timer
This section explains how to use a variable
fan output in minimum ventilation and how
to set its minimum ventilation timer.
1. Select:
» MINIMUM VENTILATION / CURVE
1. Variable 1 (or 2. Variable 2)
»
1. Timer/Status
»
Variable 1 Settings
Current
20 %
Status:
On
On Time
15 sec
Cycle Time: 120 sec
2. Set the following parameters:
Status — Select "On" for the variable output
to be used in minimum ventilation.
On Time / Cycle Time — If the variable out-
put is used in minimum ventilation, set its
minimum ventilation timer properly (On Time
and Cycle Time).

6.1.2. Min Vent. Fan Speed

1. Select:
» MINIMUM VENTILATION / CURVE
1. Variable 1 (or 2. Variable 2)
»
2. Minimum Curve
»
The minimum speed of the variable output
is displayed.
Min Ventilation
Variable Output 1
Speed:
Curve stat
Off
2. If the temperature curve is ON, the
minimum fan speed, as calculated by the
curve, is displayed. Press the down-arrow
key and scroll the display until "Curve Stat"
status fl ashes on screen. Press the Edit key
then press the down-arrow key to disable the
Time
curve. Press Edit once again to validate the
new curve status. Now that the curve is off,
follow the instructions below.
3. If the curve is OFF, the minimum speed of
variable output 1 fl ashes on the display. Press
the Edit key then use the arrow keys to adjust
the minimum speed to the desired value.
Press the Edit key once again to validate.

6.1.3. Min Vent Night Settings

1. Select:
» USER
6. Day / Night
»
Day/Night Settings
Night SetPoint?
Night Min.Vent? Yes
DayTime
6:00
DayTime
6:00
NightTime
18:00
Min. V1
Min. V2
2. Set the following parameters:
Night Min. Vent — Select "Yes" to use differ-
ent minimum ventilation settings at night.
Min. V1-2 — Select the minimum ventilation
night speed of each variable fan (in %).
EXPERT PN110 rev.23
20 %
No
10 %
25 %
15

Advertisement

Table of Contents
loading

Table of Contents