YORK INTERNATIONAL
13
FORM 160.49-O1
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. 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 dig-
its 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 ACCESS
CODE key again, the operator will have ac-
cess to the PROGRAM key for 10 minutes.
When 10 minutes have elapsed, access to
PROGRAM key will be automatically dis-
abled 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 ac-
ceptable limits,
OUT OF RANGE – TRY AGAIN!
message will be displayed for 2 seconds, then the
PROGRAM MODE, SELECT SETPOINT
message will re-
appear.
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.
FIG. 5 – KEYPAD – PROGRAMMING SYSTEM
SETPOINTS
LD01068
