YORK INTERNATIONAL
FORM 150.63-NM1
113
3
Pressing the COOLING SETPOINTS key again will
bring up the display that allows the Maximum EMS-
PWM Temperature Reset to be programmed. This mes-
sage 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
explanation 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 13.
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 fol-
lowed until the hour, minutes, and meridian (AM or
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
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 sched-
ule. This means if the Monday times
are not applicable for the whole week
then the exceptional days would need
to be reprogrammed to the desired
schedule.
To page to a specific day press the SCHEDULE/AD-
VANCE 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 nor-
mal daily schedule.
M O N
S T A R T
=
0 0 : 0 0
A M
S T O P
=
0 0 : 0 0
A M
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
*
Summary of Contents for MILLENNIUM YCUL0016SC
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