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JOHNSON CONTROLS
99
FORM 150.63-NM6 (1020)
2
Pressing the COOLING SETPOINTS again will bring
up the display that allows the Maximum EMS-PWM
Temperature Reset to be programmed. This message is
shown below.
The Temp Reset value is the maximum allowable reset
of the Discharge Air Temperature Setpoint. The setpoint
can be reset upwards by the use of a contact closure on
the PWM Temp Reset input (CTB1 terminals 13 - 20).
See the section on Operating Controls for a detailed
explaintion of this feature.
As with the other setpoints, the Up Arrow and Down
Arrow keys are used to change the Temp Reset value.
After using the UP and DOWN ARROWS to adjust
to the desired setpoint, the ENTER/ADV key must be
pressed to enter this number into memory.
The low limit, high limit, and default values for the keys
under “SETPOINTS” are listed in Table 15.
SCHEDULE/ADVANCE DAY KEY
The SCHEDULE is a seven day daily schedule that al-
lows one start/stop time per day. The schedule can be
programmed Monday through Sunday with an alternate
holiday schedule available. If no start/stop times are
programmed, the unit will run on demand, providing the
unit is not shut off on a unit or system shutdown. The
daily schedule is considered “not programmed” when
the times in the schedule are all zeros (00:00 AM).
To set the schedule, press the SCHEDULE/ADVANCE
DAY
key. The display will immediately show the fol-
lowing display.
The line under the 0 is the cursor. It may be changed
by using the UP and DOWN arrow keys until correct.
Pressing the ENTER/ADV key will enter the times and
then move the cursor to the minute box. The operation is
then repeated if necessary. This process may be followed
until the hour, minutes, and meridian (AM or PM) of
both the START and STOP points are set. After changing
the meridian of the stop time, pressing the ENTER/ADV
key will advance the schedule to the next day.
Whenever the daily schedule is
changed for Monday, all the other
days will change to the new Monday
schedule. This means if the Monday
times are not applicable for the whole
week then the exceptional days would
need to be reprogrammed to the de-
sired schedule.
To page to a specific day press the SCHEDULE/
ADVANCE DAY
key. The start and stop time of each
day may be programmed differently using the UP and
DOWN arrow, and ENTER/ADV keys.
After SUN (Sunday) schedule appears on the display a
subsequent press of the SCHEDULE/ADVANCE DAY
key will display the Holiday schedule. This is a two part
display. The first reads:
The times may be set using the same procedure as de-
scribed above for the days of the week. After changing
the meridian of the stop time, pressing the ENTER/
ADV key will advance the schedule to the following
display:
The line below the empty space next to the S is the
cursor and will move to the next empty space when the
ENTER/ADV key is pressed. To set the Holiday, the
cursor is moved to the space following the day of the
week of the holiday and the UP arrow key is pressed.
An * will appear in the space signifying that day as a
holiday. The * can be removed by pressing the DOWN
arrow key.
The Holiday schedule must be programmed weekly
- once the holiday schedule runs, it will revert to the
normal daily schedule.
H O L S T A R T = 0 0 : 0 0 A M
S T O
P = 0 0 : 0 0 A
M
S _ M T W T F S
H O L I D A Y N O T E D B Y *
M A X E M S - P W M R E M O T E
T E M P R E S E T = + 2 0 ° F
M O N S T A R T = 0 0 : 0 0 A M
S T O
P = 0 0 : 0 0 A
M
Summary of Contents for YCUL0045
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