YORK INTERNATIONAL
27
FORM 160.60-O1
FIG. 7
– KEYPAD – PROGRAMMING SYSTEM
SETPOINTS
LD00158
PROGRAMMING THE
MICROCOMPUTER CONTROL CENTER
PROGRAMMING SYSTEM SETPOINTS
The system setpoints can be entered at any time . . .
even when the system is running. Proceed as follows to
enter system setpoints. (Refer to Fig. 7). For all the pro-
gramming system setpoints shown below you MUST be
in the Program mode, select setpoint mode.
1. Press
ACCESS CODE
key.
2. This is displayed:
ENTER VALID ACCESS CODE
3. Using
Entry
keys, enter
9 6 7 5
.
4. As each digit is entered, the characters
Y O R K
are
displayed.
NOTE: If digits other than
9 6 7 5
are entered,
Y O R K
is still displayed.
NOTE: For ease in remembering the code, note that
the letters
Y O R K
correspond to the digits
9 6 7 5
on a telephone dial.
5. Press
ENTER
key.
NOTE: If digits other than
9 6 7 5
were entered in
step No. 4,
INVALID ACCESS CODE
is displayed when the
ENTER
key is
pressed. If this occurs, enter the correct ac-
cess code (9675) and proceed.
6. This is displayed:
ACCESS TO PROGRAM KEY AUTHORIZED
NOTE: Unless terminated by pressing the
ACCESS
CODE
key again, the operator will have access
to the
PROGRAM
key for 10 minutes. When
10 minutes have elapsed, access to program
key will be automatically disabled and the op-
erator must return to step No. 1 to gain access.
7. Press
PROGRAM
key.
8. This is displayed:
PROGRAM MODE, SELECT SETPOINT
9. Enter setpoints as detailed below. If you make a mis-
take when entering a value, press
CANCEL
key and
then
ENTER
key. The display will revert to the de-
fault values and the cursor will return to the first
changeable digit. You can then proceed to enter the
correct values. If the entered value exceeds accept-
able limits,
OUT OF RANGE - TRY AGAIN!
message will be displayed for 2 seconds, then the
PROGRAM MODE. SELECT SETPOINTS
message will reappear.
10. When all the desired setpoints have been entered,
press the
ACCESS CODE
key to exit program mode
and terminate access to program mode.
ACCESS TO PROGRAM MODE DISABLED
is displayed. The Control Center will automatically
return to
LOCAL
,
REMOTE
or
SERVICE
mode
. . . whichever was last selected.
S
E
C
T
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