York MILLENNIUM YCAS Installation Operation & Maintenance page 140

Micropanel
tion of the chiller under most operating conditions. This
allows quick start-up programming for typical chilled
water applications.
To program the default values into memory, first press
the PROGRAM key followed by the ENTER key, to
program the "refrigerant type". Press the Program key
again, key in the numbers "6140", then press Enter. As
the code is being keyed in, the digits are not displayed
but are shown as " * " as shown :
P R O G R A M M O D E
* * * *
When the Enter key is pressed, the following message
will appear:
D E F A U L T S E T P O I N T S
1 = Y E S , 0
Key in a "1" for if default setpoints are required, or a
"0" for individually programmed values, then press En-
ter to store the selection into memory.
140
?
= N O, 1
If individual programming is selected, the display will
now return to the Status display. If a default setpoints
have been selected, the display will momentarily display
the message shown below before returning to the Sta-
tus display :
P R O G R A M O P T I O N S
T O D E F A U L T
It is often easier to select Default
Setpoints and then reprogram a few
that require changing rather than pro-
gramming each individual value from
scratch.
A list of the default values entered into memory, if this
program option is selected, is shown below:
Programmable Value
Discharge Pressure Cut-Out
Low Ambient Cut-Out
High Ambient Temperature Cut-Out
Discharge Pressure Unload
High Motor Current Unload
Anti-Recycle Timer
Leaving Chilled Liquid Temp Cut-Out
Suction Pressure Cut-Out
S E T
V A L U E S
6140
Default
Setting
R22 (28 bar) 399PSIG
Std. Amb. -4ºC 25°F
Low Amb. -4ºC 25°F
38ºC 130°F
R22 26 bar 375PSIG
100%
600 sec.
2ºC 36°F
R22 3 bar 44PSIG
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