4
AP21 Programming Manual
Programming SEQuEnCE
1
CrEaTE
DaY PlanS
2
CrEaTE
annual Plan
• Choose Step Number
• Choose Time
• Choose to Turn Relay
On or Off
• Choose Exception
• Choose Start Date
• Choose End Date
Programming inSTruCTionS
THE aP21 CurSor
— On many of the AP21 display screens you will see a flashing square character called the cursor. The
cursor indicates that you may now enter or change the data at that position of the display.
auTo PromPT DiSPlaY
— On a cold start with a discharged back-up capacitor, the AP21 will automatically prompt the
operator through the programming procedure. The operator simply has to follow the display and enter the appropriate data as
the cursor advances through the program entries. You may exit this sequence if desired by pressing the EXIT (#) key and the
unit will default to the time display mode. From the time display mode, you may enter any of the set time, date, or program
modes manually.
EnTEring DaTa
— From the cursor, you enter the appropriate data and press the
EnTEr
(
) key. The cursor will automatically
advance to the next position. If the data at the cursor is correct, simply press the
EnTEr
(
) key to advance the cursor. The
AP21 will not allow you to enter an invalid number (i.e., the unit will not accept the number 13 for a month entry). The cursor
will remain in its position until a valid entry is made, so keep pressing the keys until you see the correct number at the cursor
and then press the
EnTEr
(
) key.