FORM 201.10-NM4
111
YORK INTERNATIONAL
NOTE: Only one start / stop time can be programmed
which will apply to each of the Holiday days
selected.
After the Enter key is pressed, a display to designate
which days of the week are holidays will appear:
When the display appears, the cursor will first stop af-
ter Sunday as shown. To designate a day as a holiday,
press the * key. If a day is not to be a holiday, press
the 0 key. When the * or the 0 keys are pressed,
the cursor will advance to the next day. After all the holi-
day days are programmed, press Enter to store the new
data. The display will then return to the beginning of the
Daily Schedule (MON).
NOTE: The Holiday Schedule is only performed once,
then erased from memory. This avoids the need
for reprogramming after the holiday, as most
special Holiday Schedule requirements are only
occasional.
If an error is made while programming or a change is re-
quired, press Cancel. This will clear the programmed (*)
Holiday days (the 0 key will not cancel out a * and can
not be used for correcting a programming error).
7.4 MANUAL OVERRIDE KEY
When the Manual Override key is pressed, the Daily
Schedule programmed into the chiller is ignored and
the chiller will start up when water temperature is above
the high limit of the Control Range and the Chiller ON/
OFF switch is ON, remote cycling devices are CLOSED,
and the system switches permit.
Normally this key is used only for servicing when the
chiller is required to run but the Daily Schedule is in an
Off period. This key avoids the need to reprogram the
Daily Schedule. Once activated, Manual Override is only
active for a period of 30 minutes.
NOTE: If a Warning Low Battery fault message ap-
pears on the display, the internal clock, calendar
and program settings can not be relied on for ac-
curacy. Default values are loaded into the Micro-
processor memory and the Manual Override key
can be used to zero out the daily schedule and
allow unlimited operation regardless of the time
on the internal clock. Reprogramming of the set-
points and cutout values may also be necessary.
When the MANUAL OVERRIDE key is pressed,
the low battery message will disappear. If a power
failure should again occur, the above process will
again need to be repeated to bring the chiller back
on line. See also Section 2.2.
The displays for each day are scrolled through by re-
petitively pressing the Advance Day key. To reprogram
any of the daily schedule, key in the new Start time,
then if necessary, change the associated AM/PM by
pressing the AM/PM key.
NOTE: The AM/PM key can only be used once here. If
an error is made, press Cancel and begin again.
Next key in the Stop Time (the cursor will automatically
skip from AM/PM to the first digit of the time when a
number key is pressed) and the AM/PM if necessary.
Now press the Enter key to store the new schedule. The
display will scroll to the next day. If an unacceptable time
is entered, the following message will be displayed for
three seconds, then return to the schedule display:
NOTE: New start/stop times programmed for Monday
are automatically used for all following days of
the week.
NOTE: Always use the Advance Day key, not the En-
ter key, to scroll through the schedule displays.
This will assure that after viewing Monday, the
Enter key is not pressed which will change times
programmed for the remainder of the week.
If the chiller is not cycled by the Daily Schedule, but is
required to run whenever remote cycling devices, sys-
tem switches, and main Chiller ON / OFF switch is in
the ON position, all 00.00s should be programmed into
the daily schedule. This can be done manually for indi-
vidual days or for all days by pressing Cancel or Enter
for the Monday Start / Stop schedule.
NOTE: Programming the DAILY SCHEDULE will not
affect the holiday schedule.
If the chiller is not required to run on a given day, the
Start time should be programmed for 00:00 AM and the
Stop time programmed for 12:00 AM.
Continue to program each day as needed. After SUN
has been entered, the Holiday message will be dis-
played:
The Holiday (HOL) Start / Stop allows a specific day(s)
for be assigned for special requirements. This is pro-
vided so that a day(s) needing special start / stop re-
quirements can be programmed without disturbing the
normal working schedule. The start / stop times for the
Holiday schedule are programmed just as any other day.
M O N
S T A R T
=
0 6 : 0 0
A M
S T O P
=
0 5 : 3 0
P M
O U T
O F
R A N G E
T R Y
A G A I N !
H O L
S T A R T
=
0 8 : 3 0
A M
S T O P
=
1 2 : 0 0
P M
S
*
M
T
W
T
F
S
H O L I D A Y
N O T E D
B Y
*
