York YCAS0295EB, Installation Operation & Maintenance

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151 YORK INTERNATIONAL
FORM 201.19-NM7 (804)
8
5. ENTRY KEYS
5.1 GENERAL
The Entry keys allow the user to change numerical
val ues programmed in as chiller setpoints, cutouts,
clock, etc.
5.2 NUMERICAL KEYPAD
The Numerical keypad provides all keys necessary to
program numerical values into the Micro Panel.
The “*” key is used to designate holidays when pro gram -
ming special start/stop times for designated hol i days in
the SET SCHEDULE/HOLIDAY program mode.
The “+/-” key allows programming -C setpoints and
cut-outs in the metric display mode.
5.3 ENTER KEY
The Enter key must be pushed after any change is made
to setpoints, cutouts, or system clock. Pressing this key
tells the micro to accept new values into memory. If this
is not done, the new values entered will be lost and the
original values will be returned.
The Enter key is also used to scroll through available
data when using the Program or Set Schedule/Holiday
keys.
5.4 CANCEL KEY
When the Cancel key is pressed, the cursor will always
return to the fi rst character to be programmed in the
dis play message. This allows the operator to begin re-
pro gram ming, if an error is made. When the Cancel key
is pressed, the values already keyed in will be erased
and the original or internally programmed default val ues
will appear. In other instances the display will re main the
same and the only reaction will be the cursor re turn ing
to the fi rst character.
5.5
!"
KEYS
The
!"
keys allow the user to scroll through data un der
the OPER DATA and HISTORY Key and to select the
correct day of the week and the correct month when
programming the micro with the cor rect time and date.
The
"
key also operates as a tog gle AM/PM key if the
cursor is over “AM” or “PM” on the display. For ex-
am ple, pressing the
"
key when the cursor is on “PM”
changes it to “AM.”
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