42
EXPERT LA rev.00
EXPERT LA
6.2.3
Fan Stage Settings
Select:
Main menu
Start/Stop*
Fan Stages
*
A password may be required to access this menu (sec. 4.2).
•
Set the following parameters:
(Refer to the previous section to get further infor-
mation on these parameters)
Start & Stop temperatures
Set the start and stop temperatures of each
fan stage.
Notes:
The minimum difference between two
consecutive start temperatures is of
0.5 °F (0.3 °C).
The start temperature of a fan stage
must be greater value than its stop tem-
perature.
Differential
The differential is the temperature difference
between the moment the Stage 1 start run-
ning in timer mode (stage 1 ramping) and
the moment they run continuously. Refer to
the diagram in section 6.2.2. The differen-
tial can be adjusted between 0.5°F and
20.0°F (0.3°C and 11.1°C).
Accessible if the ramping option is enabled in the
Installation Setup (section 4.5).
Timer
If timer-based relays are assigned to some
fan stages (sec. 4.8), set the On Time and
the Off Time of each timer-based relay.
These On/Off Times can be adjusted from 0
to 15 minutes in increments of 15 seconds.
Main menu
Start/Stop
Fan Stages
Fan Stage Start / Stop
Use to navigate
Stage 1 Start
70.0 °F
Stop
69.0 °F
Differential
2.0 °F
Stage 2 Start
72.0 °F
Stop
71.0 °F
Stage 3 Start
74.0 °F
Stop
73.0 °F
On Time
0:15 m:s
Off Time
5:15 m:s
Stage 4 Start
76.0 °F
Stop
75.0 °F
Stage 5 Start
78.0 °F
Stop
77.0 °F
51
EXPERT LA rev.00
EXPERT LA
6.5
Vent Doors (Inlets)
The controller can control the opening of two vent
door (inlet) outputs. These vent doors (inlets) either
open and close as a function of temperature or as a
function of static pressure.
The following sections explain how vent doors (in-
lets) operate depending on their operating mode:
- Temperature-based, using a timer;
- Static pressure-based.
Refer to the Installation Setup section of this manual
to select the desired operating mode (section 4.5).
