14
YORK INTERNATIONAL
PROGRAMMING
THE MICROCOMPUTER CONTROL CENTER
FIG. 5
KEYPAD PROGRAMMING SYSTEM
SETPOINTS
LD00954
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. 5.)
1. Press
ACCESS CODE
key.
2.
ENTER VALID ACCESS CODE _ _ _ _
is displayed.
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 dis-
played when the
ENTER
key is pressed. If
this occurs, enter the correct access code
(9675) and proceed.
6.
ACCESS TO PROGRAM KEY AUTHORIZED
is displayed.
NOTE: Unless terminated by pressing the
AC-
CESS 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 automati-
cally disabled and the operator must return
to step No. 1 to gain access.
7. Press
PROGRAM
key.
8.
PROGRAM MODE, SELECT SETPOINT
is displayed.
9. Enter setpoints as detailed below. If you make a
mistake when entering a value, press
CANCEL
key
and then
ENTER
key. The display will revert to the
default 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 SETPOINT
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
LO-
CAL
,
REMOTE
or
SERVICE
mode . . . . whichever
was last selected.