45
7. Enter the day of the month. Press
then press
. The LID display will show:
Year
95
8. Enter the last two digits of the current year. Press
then press
. The LID display will show:
Update Clock
No
9. Press 1 and then
to update the clock. The LID
display will flash. Press
twice to view the de-
fault display and the clock should update to the input time
and date.
CONFIGURE SCHEDULES — Schedules are one method
of starting and stopping the unit at specified intervals. To con-
figure the schedules, perform the following procedure:
1. Press 1 and then
. The LID display will show:
Occupancy Algorithm
2. Press
. The LID display will show:
Time Schedule
Enter to Select
3. Press
. If the LID display shows “MODE 0,”
then the user is in Maintenance mode and the LID display
is showing the maintenance information for the occupan-
cy schedule. Press
to enter the configura-
tion mode. The LID display will show:
Manual Override Hours
0 hours
This is the first configuration for each occupancy
algorithm and is used to put the schedule in or out of
occupancy override for the number of hours entered.
4. Press
. The LID display will show:
Period 1: Day of week
00000000
The eight digits represent the certain days of the week or
holidays this period should apply to: M, Tu, W, Th, F, Sa,
Su, and Hol, respectively. Enter a series of 0s or 1s with a
1 corresponding to the days that this period should apply
to and a 0 for the days that this schedule should not apply
to. As an example, entering 11111000 would make the
schedule apply to days Monday through Friday and not
apply to Saturday, Sunday, or Holidays.
5. Press the
button. The LID display will show:
Period 1 occupied from
00:00
6. Input the occupancy start time for this period.
NOTE: 12.00 represents 12:00 pm.
7. Press the
to input the occupied to time for period 1.
8. Input the days and times for periods 2 through 8 as
required.
9. Press
to leave the occupancy programming.
PROGRAM SET POINTS — To program the set points, per-
form the following procedure:
1. Press 2 and then
. The LID display will show:
Setpoint Schedule
2. Press
. The LID display will show:
Supply Fan Status
SETPT01
3. Press .
4. If “No Maintenance” is displayed, press
to
view the set point information. The LID display will
show:
Occupied Lo Setpoint
0.30 in. H2O
This is the pressure set point below which the fan is con-
sidered to be off.
5. Press
. The LID display will show:
Occupied Hi Setpoint
0.40 in. H2O
This is the pressure set point above which the fan is con-
sidered to be on.
The down or up arrow will also display the unoccupied
low and high temperature set points. These values should
be kept the same as the occupied values.
6. To view set points 02-09, use the following sequence:
Press 2 and then
. The LID display will show:
Setpoint Schedule
Press
. The LID display will show:
Supply Fan Status
SETPT01
Press
to scroll down to the desired set point. Press
to select.
To view another point, press
once to move up
one menu level. Then press
to scroll down to
the desired set point and press
to select.
7. Pressing the
button will take the user out of the
set point configuration mode.
Set point functions are as follows:
Setpoint 02 (VAVRESETbaseline) internally coordinates
the supply air set point reset in several of the algorithms
and cannot be modified.
Setpoint 03 (Heat/Cool Mode & Reset) is used for com-
parison by the unit to return air, space temperature, or
average space temperature through linkage to determine
when to start reset of the supply air when occupied, when
to turn on heat and disable cooling when occupied,
and when to bring the unit on for unoccupied heating or
cooling.
Setpoint 05 (Supply Static Pressure) is used to set the sup-
ply air static pressure the unit should maintain. Only the
Occupied Low set point may be modified. The other
values will change to the Occupied Low value shortly
after it is modified so that all the values remain the same.
The set point in the static pressure control algorithm will
also follow and cannot be modified in the algorithm con-
figuration screens.
Setpoint 06 (Supply Air Temperature) is the supply air
temperature set point. Only the Occupied Low set
point may be modified. The other values will change
to the Occupied Low value shortly after it is modified
so that all the values remain the same. The set point in
DX VAV staging and some of the other algorithms will
also follow and cannot be modified in the algorithm
configuration screens.
Table 21 lists the available controller set points and
their default values. Refer to 50BV,XJ Controls, Opera-
tion and Troubleshooting manual for additional set point
descriptions.
ENTER
ENTER
ENTER
CLEAR
SCHD
ENTER
ENTER
EXPN/EDIT
CLEAR
SCHD
ENTER
ENTER
EXPN/EDIT
SCHD
ENTER
ENTER
CLEAR
ENTER
CLEAR