14
ITA-6
ITA-6 rev.02
Seasonal Programs
All controller parameters can be set separately for winter and for summer
seasons. Select the proper season using internal switch #3 :
ON
= Winter
OFF =
Summer
Make sure to select the right season
is selected before modifying a parameter.
Verify ITA-6 Operation (Manual Mode)
•
Power the ITA-6 then select MANUAL MODE using the function
selector.
•
Use the adjustment knob to select the desired actuator status: se-
lect
"OPn"
to open,
"CLo"
to close or
"OFF"
to stop the actuator.
Select
"AUt"
to return to the automatic control mode.
VERIFY THE MOTOR'S OPERATION:
•
Manually open or close air inlet panels as explained above. These
panels should open when the "
OPn
" option is selected and should
close when the "
CLo
" option is selected. If they move the opposite
way, the motor operates in the wrong direction. Turn off the power
and reverse the wires connected to the actuator's open and close
terminals. Verify that the motor now operates in the right direction.
VERIFY LIMIT POSITIONS OF AIR INLET PANELS:
•
Select "
CLo
" to fully close the air inlet then place the limit switch
of the actuator at this position to prevent it from closing any fur-
ther; select "
OPn
" to fully open the air inlet then place a limit switch
at this position to prevent the actuator from opening any further.
ON
OFF
23
ITA-6
ITA-6 rev.02
•
Use the adjustment knob to specify the opening time that needs to
be added to the previous opening, or to specify the inlet opening (in
%) associated with the selected step.
•
Proceed in similar fashion for all steps.
The cumulative opening times of an air inlet cannot exceed
the inlet's
Total Opening Time
parameter value.
If the opening of the air inlet is set as a percentage, the
controller may have to slightly adjust inlet opening values
due to some internal restriction in the conversion process.
SELECTING THE NUMBER OF INTERMEDIATE OPENING STEPS
Follow this procedure to select the number intermediate opening steps
that are performed during variable stages (see BASIC PRINCIPLE OF
OPERATION chapter for further information).
•
Select "
REMAINING RUN TIME / OPENING"
using the function se-
lector.
•
Press and hold the push-button for 2 seconds. The number of inter-
mediate steps flashes, alternating with the letters "
NbS
".
•
Use the adjustment knob to set the number of intermediate steps
to the desired value. This value ranges from 0 to 2 steps.
Remaining Run Time / Opening Menu
If the inlet opening is displayed as a time value (internal switch #10 is OFF),
the REMAINING RUN TIME / OPENING menu shows a countdown of the
remaining moving time of the air inlet (opening or closing time). A negative
